1 Hoolauna
ʻO nā huahana polyurethane soft foam moʻo ka nui o ka poloka, hoʻomau, ʻōhuʻu, kiʻekiʻe resilience foam (HR), ʻili ʻili ponoʻī, ʻōhū resilience lohi, microcellular foam a me semi-rigid energy-absorbing foam.He 50% o ka huina o ka huahana polyurethane.ʻO kahi ʻano nui me ka hoʻonui ʻia ʻana o ka noi, ua komo ʻo ia i nā ʻano like ʻole o ka hoʻokele waiwai o ka ʻāina: nā mea pono hale, nā kaʻa, ka hoʻomaikaʻi ʻana i ka home, nā lako, nā kaʻaahi, nā moku, aerospace a me nā ʻano ʻē aʻe he nui.Mai ka hiki ʻana mai o ka puʻu palupalu PU i ka makahiki 1950, ʻoi aku ka nui ma hope o ke komo ʻana i ke kenekulia 21, ua lele ka ʻenehana, nā ʻano like ʻole a me nā huahana huahana.ʻO nā mea koʻikoʻi: ʻO ka puʻupuʻu palupalu PU kūlohelohe, ʻo ia hoʻi ka huahana polyurethane ʻōmaʻomaʻo;haʻahaʻa VOC waiwai PU pulu palupalu;haʻahaʻa atomization PU pulu palupalu;wai piha PU pulu palupalu;piha MDI moʻo pulu palupalu;pale ahi, uahi haʻahaʻa, pūʻulu MDI piha Foam;nā ʻano mea hoʻohui hou e like me ka reactive high molecular weight catalysts, stabilizers, flame retardants a me nā antioxidants;polyols me ka haʻahaʻa unsaturation a me ka haʻahaʻa monoalcohol maʻiʻo;ultra-haʻahaʻa puʻupuʻu PU palupalu me nā waiwai kino maikaʻi loa;ke alapine resonance haʻahaʻa, haʻahaʻa haʻahaʻa haʻahaʻa PU palupalu palupalu;polycarbonate diol, polyε-caprolactone polyol, polybutadiene diol, polytetrahydrofuran a me nā polyol kūikawā;ʻenehana hoʻohūhū wai CO2, ʻenehana hoʻoulu ʻana i ka ʻenehana, etc.I ka pōkole, ua hoʻolaha ka puka ʻana o nā ʻano hou a me nā ʻenehana hou i ka hoʻomohala hou ʻana o ka pua palupalu PU.
2 Kumu huahua
I mea e synthesize i ka puʻupuʻu palupalu PU maikaʻi e kū ana i nā koi, pono e hoʻomaopopo i ke kumu hoʻohālikelike kemika o ka ʻōnaehana foam i mea e koho ai i nā mea waiwai nui a me nā mea kōkua a me nā kaʻina hana.ʻO ka hoʻomohala ʻana o ka ʻoihana polyurethane a hiki i kēia lā ʻaʻole ia i ke ʻano hoʻohālike, akā e like me nā koi o ka hana o ka huahana hope, hiki ke hoʻokō ʻia ma o ke ʻano o nā mea maka a me nā ʻenehana synthetic.Hoʻokomo ka polyurethane foam i nā hoʻololi kemika i ka wā o ke kaʻina hana, a paʻakikī nā mea e pili ana i ka waiwai o ka ʻōpū, ʻaʻole wale ia e pili ana i ka hopena kemika ma waena o ka isocyanate, polyether (ester) waiʻona a me ka wai, akā pili pū kekahi i ka colloid chemistry o ka huʻa. .ʻO nā hopena kemika e pili ana i ka hoʻonui ʻana i ke kaulahao, ka huʻa a me ka hoʻopili ʻana.Hoʻopilikia pū ia i ke ʻano, ka hana a me ke kaumaha molekala o nā mea i komo i ka hopena.ʻO ka hopena maʻamau o ka synthesis o ka polyurethane foam hiki ke hōʻike ʻia e kēia ʻano:
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Eia naʻe, ʻoi aku ka paʻakikī o ke kūlana maoli, a ua hōʻuluʻulu ʻia nā pane koʻikoʻi penei:
01 Hoʻonui kaulahao
ʻO nā isocyanates multifunctional a me ka polyether (ester) alcohols, ʻoi aku ka nui o nā pūhui difunctional, ke hoʻonui ʻia nei ke kaulahao penei:
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I loko o ka ʻōnaehana huʻihaʻi, ʻoi aku ka nui o ka isocyanate ma mua o ka mea o ka pūhui i loaʻa i ka hydrogen ikaika, ʻo ia hoʻi, ʻoi aku ka nui o ka helu pane ma mua o 1, maʻamau 1.05, no laila ka hopena o ka huahana hope i hoʻonui ʻia i ke kaulahao. pono he hui isocyanate.
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ʻO ka hopena o ke kaulahao ka hopena nui o ka PU foam, a ʻo ia ke kī i nā waiwai kino: ikaika mechanical, ulu ulu, elasticity, etc.
02 Hoʻohuhū ʻana
He mea nui ka foaming i ka hoʻomākaukau ʻana i nā ʻūhā palupalu, ʻoi aku ka nui o ka synthesizing i nā huahana haʻahaʻa haʻahaʻa.ʻElua mau hopena huʻihuʻi maʻamau: ka hoʻohana ʻana i ka wela wela e hoʻoheheʻe i nā pūhui hydrocarbon paila haʻahaʻa, e like me HCFC-141b, HFC-134a, HFC-365mfc, cyclopentane, a me nā mea ʻē aʻe, no ka hoʻokō ʻana i nā kumu hū, a ʻo kekahi e hoʻohana. ka wai a me ka isocyanate.Hoʻopuka ka hopena kemika i ka nui o ke kinoea CO2 e hoʻohāhā:
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I ka loaʻa ʻole o kahi catalyst, ua lohi ka hopena o ka wai me nā isocyanates.ʻO ka wikiwiki o ka hopena o nā amines a me nā isocyanates he wikiwiki loa.No kēia kumu, i ka wā e hoʻohana ʻia ai ka wai e like me ka mea hoʻoulu ʻana, lawe mai ia i ka nui o nā ʻāpana paʻa a me nā pūhui urea me ka polarity kiʻekiʻe, e pili ana i ka manaʻo, resilience a me ka pale wela o nā huahana foam.No ka hanaʻana i ka huʻa me nā waiwai kino maikaʻi a me ka haʻahaʻa haʻahaʻa, pono e hoʻonui i ke kaumaha mole o ka polyether (ester) waiʻona a me ka palupalu o ke kaulahao nui.
03 Hana gel
Ua kapa ʻia ka hopena gel he cross-linking a curing reaction.I ke kaʻina hana hoʻohua, he mea nui ka gelation.ʻO ka hoʻomaka ʻana a i ʻole ka lōʻihi o ka hoʻoheheʻe ʻana e hoʻemi ai ka maikaʻi o nā huahana puaa.ʻO ke kūlana maikaʻi loa, ʻo ia ka hoʻonui ʻana i ke kaulahao, ka hoʻoulu ʻana a me ka hopena gel i hiki i ke kaulike, inā ʻaʻole e kiʻekiʻe ke kiʻekiʻe o ka ʻūhā a i ʻole e hāʻule ka huʻa.
ʻEkolu mau hana gelling i ka wā o ka hoʻoulu ʻana:
1) Gels o nā pūhui multifunctional
ʻO ka mea maʻamau, hiki i nā pūhui me nā hana ʻoi aku ma mua o ʻekolu ke hana i nā pūhui o ke kino.Hoʻohana mākou i nā polyether polyols me nā hana ʻoi aku ma mua o ʻekolu i ka hana ʻana i nā ʻōhua polyurethane flexible.I kēia mau lā, hoʻohana pū ʻia nā polyisocyanates me fn ≥ 2.5 i ka hoʻomohala ʻana i nā ʻōnaehana MDI āpau e hoʻomaikaʻi i ka hiki ke hoʻokau i ka haʻahaʻa haʻahaʻa.ʻO kēia ke kumu no ka hoʻokumu ʻana i nā hale hoʻohui ʻekolu ʻāpana:
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Pono e hoʻomaopopo ʻia ʻo ke kaumaha o ka molekala ma waena o nā kiko hoʻopili keʻa e hōʻike pololei ana i ka nui o ka hoʻopili ʻana o ka huʻa.ʻO ia hoʻi, ʻoi aku ka nui o ka crosslinking density, kiʻekiʻe ka paʻakikī o ka huahana, a maikaʻi ka ikaika mechanical, akā ʻilihune ka palupalu o ka ʻūhā, a haʻahaʻa ka resilience a me ka elongation.ʻO ke kaumaha molekala (Mc) ma waena o nā wahi hoʻohui keʻa o ka ʻūhā palupalu he 2000-2500, a ʻo ka pahu semi-rigid ma waena o 700-2500.
2) Ka hoʻokumu ʻana o ka urea
Ke hoʻohana ʻia ka wai ma ke ʻano he mea hoʻohāhā, hana ʻia nā pūhui pili urea.ʻO ka nui o ka wai, ʻoi aku ka nui o nā paʻa urea.E hana hou lākou me ka isocyanate keu i ka wela kiʻekiʻe e hana i nā pūhui paʻa biuret me kahi ʻano hana ʻekolu:
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3) Hoʻokumu ʻia o ka allophanate ʻO kekahi ʻano o ka hoʻopili ʻana i ke keʻa, ʻo ia ka hana ʻana o ka hydrogen ma ke kaulahao nui o ka urethane me ka isocyanate keu ma ka wela kiʻekiʻe e hana i kahi paʻa allophanate me kahi ʻano ʻekolu-phase.
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ʻAʻole kūpono ka hoʻokumu ʻana o nā pūhui biuret a me nā allophanate no nā ʻōnaehana huʻihuʻi no ka mea ʻoi aku ka maikaʻi o kēia mau pūhui ʻelua i ka wela a me ka decompose i nā wela kiʻekiʻe.No laila, he mea nui i ka poʻe ke hoʻomalu i ka mahana a me ka helu isocyanate i ka hana.
3 Helu kemika
ʻO ka polyurethane synthetic material he polymer synthetic material e hiki ke synthesize i nā huahana polymer mai nā mea maka i hoʻokahi ʻanuʻu, ʻo ia hoʻi, hiki ke hoʻoponopono pono ʻia nā waiwai kino o nā huahana ma o ka hoʻololi ʻana i nā kikoʻī a me ka hoʻohui ʻana o nā mea waiwai.No laila, pehea e hoʻopili pono ai i ke kumu o ka polymer synthesis a hoʻokumu i kahi ʻano helu helu maʻalahi he mea nui loa ia e hoʻomaikaʻi i ka maikaʻi o nā huahana polyurethane
01 Waiwai like
ʻO ka mea i kapa ʻia ka waiwai like (E) e pili ana i ke kaumaha molekala (Mn) e pili ana i ka hana o ka wae (f) i loko o kahi mole hui;
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No ka laʻana, ʻo 3000 ka helu awelika molecular kaumaha o polyether triol, a laila kona waiwai like:
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ʻO ka mea hoʻohana maʻamau ʻo MOCA, ʻo ia hoʻi ʻo 4,4′-methylene bis(2 chloroamine), he 267 ka nui o ka molekika pili.atom, no laila kona hana f=2
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Ma ka kikoʻī huahana o polyether a polyester polyol, hāʻawi kēlā me kēia hui i ka ʻikepili waiwai hydroxyl (OH), no laila ʻoi aku ka maʻalahi o ka helu pololei ʻana i ka waiwai like me ka waiwai hydroxyl:
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He mea pono e hoʻomanaʻo i ka ana maoli o ka huahana functionality i loa manawa-e hoopau ana, a he nui aoao reactions.ʻO ka pinepine, ʻaʻole like ka hana maoli o triol polyether (ester) me 3, akā aia ma waena o 2.7 a me 2.8.No laila, paipai ʻia e hoʻohana i ka (2) formula, ʻo ia hoʻi, ua helu pū ʻia ka waiwai hydroxyl!
02 Pono o ka isocyanate
Hiki i nā pūhui hydrogen ikaika ke hana me ka isocyanate.Wahi a ke kumu o ka hopena like, he hana maʻamau ia i ka synthesis PU e helu pono i ka nui o ka isocyanate i hoʻopau ʻia e kēlā me kēia ʻāpana i ke ʻano:
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I ke kumu: Ws—ka nui o ka isocyanate
Wp—polyether a i ʻole polyester dosage
Ep—polyether a polyester like
Es—Isocyanate like
ʻO ka lākiō mola o I2—NCO/-OH, ʻo ia hoʻi, ka helu pane
ρS—maemae o ka isocyanate
E like me kā mākou e ʻike ai, i ka synthesizing i kahi prepolymer a semi-prepolymer me kahi waiwai NCO, pili ka nui o ka isocyanate i ka nui maoli o ka polyether a me ka ʻike NCO i koi ʻia e ka prepolymer hope.Ma hope o ka hōʻuluʻulu ʻana:
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I ke kumu: D——ka hakina nui o ka hui NCO i ka prepolymer
42—— Waiwai like o NCO
I loko o nā ʻōhua ʻōnaehana āpau-MDI o kēia lā, hoʻohana maʻamau ka MDI hoʻololi polyether kaumaha kiʻekiʻe no ka synthesize semi-prepolymers, a ʻo kāna NCO% aia ma waena o 25 a me 29%, no laila he mea pono loa ke kumu (4).
Manaʻo pū ʻia kekahi ʻano kumu no ka helu ʻana i ke kaumaha molekala ma waena o nā kiko hoʻopili pili e pili ana i ka nui o ka loulou cross-link, he mea maikaʻi loa ia i ka hoʻokumu ʻana i nā ʻano.Inā he elastomer a i ʻole ka huʻa kiʻekiʻe, pili pono kona elasticity i ka nui o ka mea hoʻohui cross-linking:
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Ma ke ʻano: Mnc——helu-helu-awelika kaumaha molekala ma waena o nā kiko pili
Eg——Waiwai like o ka mea hookui kea
Wg——Ka nui o ka mea hookui kea
WV - ka nui o ka prepolymer
D——NCO maʻiʻo
4 mea maka
Hoʻokaʻawale ʻia nā mea waiwai polyurethane i ʻekolu mau ʻāpana: nā pūhui polyol, nā pūhui polyisocyanate a me nā mea hoʻohui.I waena o lākou, ʻo nā polyols a me nā polyisocyanates nā kumu kumu nui o ka polyurethane, a ʻo nā mea kōkua kōkua he mau pūhui e hoʻohui i nā waiwai kūikawā o nā huahana polyurethane.
ʻO nā pūhui a pau me nā pūʻulu hydroxyl i loko o ke ʻano o nā mea hoʻohuihui no nā pūhui polyol organik.Ma waena o lākou, ʻelua mau mea hoʻohana maʻamau polyurethane foams he polyether polyols a me polyester polyols.
pūhui polyol
Polyether polyol
He oligomeric pūhui me ka awelika molecular kaumaha o 1000 ~ 7000, i hoʻokumu 'ia ma ka maka kumu o ka petrochemical 'oihana: propylene oxide a me ka ethylene oxide, a elua a me ekolu hana hydrogen-i loko o nā pūhui i hoʻohana 'ia e like me initiators, a ua catalyzed. polymerized e KOH..
ʻO ka mea maʻamau, ʻo ke kaumaha o ka molecular polyether polyol maʻamau i ka laulā o 1500 ~ 3000, a ʻo ka waiwai hydroxyl ma waena o 56 ~ 110mgKOH / g.ʻO ke kaumaha molekala o ka polyether polyol hiki ke hoʻopaʻa ʻia ma waena o 4500 a me 8000, a ʻo ka waiwai hydroxyl ma waena o 21 a me 36 mgKOH/g.
Pono e ʻōlelo ʻia he nui nā ʻano nui o nā polyether polyols i hoʻomohala hou ʻia i nā makahiki i hala aku nei he mea maikaʻi loa e hoʻomaikaʻi i nā waiwai kino o ka polyurethane flexible foam a hōʻemi i ka nui.
l Polymer-grafted polyether polyol (POP), hiki ke hoʻomaikaʻi i ka hiki ke halihali i ka puʻupuʻu palupalu PU, hoʻemi i ka nui, hoʻonui i ka puka wehe, a pale i ka shrinkage.Ke hoʻonui nei ka dosage i kēlā me kēia lā
l Polyurea polyether polyol (PHD): ʻO ka hana polyether e like me ka polymer polyether polyol, hiki ke hoʻomaikaʻi i ka paʻakikī, hiki ke hāpai, a hoʻoikaika i ka wehe ʻana o nā huahana foam.Hoʻonui ʻia ka pale ʻana o ke ahi, a ʻo ka MDI series foam e hoʻopau iā ia iho a hoʻohana nui ʻia ma ʻEulopa.l Combustion-grade polymer polyether polyol: He nitrogen-containing aromatic hydrocarbon polymer grafted polyether polyol, ʻaʻole hiki ke hoʻomaikaʻi wale i ka lawe ʻana i ka ukana, wehe-cell, paʻakikī a me nā ʻano ʻē aʻe o nā huahana foam, akā hana pū kekahi i nā cushions noho PU synthesized. mai ia mea.He kiʻekiʻe ka lapalapa ahi: ʻoi aku ka kiʻekiʻe o ka oxygen index e like me 28% a ʻoi aku paha, ka haʻahaʻa haʻahaʻa o ka uahi ≤60%, a me ka wikiwiki o ka lapalapa haʻahaʻa.He mea maikaʻi loa ia no nā kaʻa, nā kaʻaahi a me nā lako e hana ai i nā cushions noho.
l Polyol polyether unsaturated haʻahaʻa: No ka mea, hoʻohana ʻo ia i ʻelua cyanide metala paʻakikī (DMC) ma ke ʻano he catalyst, ʻo ka ʻike o nā paʻa pālua unsaturated i loko o ka polyether synthesized ʻoi aku ka liʻiliʻi ma mua o 0.010mol/mg, ʻo ia hoʻi, aia ka monool ʻO ka mea haʻahaʻa haʻahaʻa, ʻo ia hoʻi, ʻo ka maʻemaʻe kiʻekiʻe, alakaʻi i ka ʻoi aku ka maikaʻi o ka resilience a me ka hoʻopaʻa ʻana i nā waiwai o HR foam synthesized ma muli o ia, a me ka ikaika haʻalulu maikaʻi a me ke kumu indentation.ʻO ke alapine resonance haʻahaʻa i hoʻomohala hou ʻia, 6Hz haʻahaʻa haʻahaʻa haʻahaʻa kaʻa cushion cushion foam he maikaʻi loa.
l Hydrogenated polybutadiene glycol, ua hoʻohana hou ʻia kēia polyol i nā huahana PU ma waho e hoʻomaikaʻi maikaʻi i nā waiwai kino o ka pahu, ʻoi aku ka maikaʻi o ka pale ʻana i ka wā, ka makū a me ka hoʻopaʻa ʻana i ka wela a me nā pilikia ʻē aʻe no nā makahiki he nui. a me nā mea ʻē aʻe i hoʻohana ʻia ma nā ʻāina wela o ʻApelika.
l Polyether polyols me ke kiʻekiʻe ethylene oxide maʻiʻo, maʻamau kiʻekiʻe-hana polyether polyols, i mea e hoʻomaikaʻi i ka reactivity o polyethers, hoʻohui 15 ~ 20% EO i ka hopena i ka wā synthesis.ʻO nā polyether ma luna nei he EO maʻiʻo a hiki i ka 80%, PO maʻiʻo Ma ka mea ʻē aʻe, ʻoi aku ka haʻahaʻa ma mua o 40%.ʻO ia ke kī i ka hoʻomohala ʻana o nā pūʻulu MDI PU palupalu, pono e nānā ʻia e ka poʻe o ka ʻoihana.
l Nā polyether polyols me ka hana catalytic: hoʻokomo nui i nā pūʻulu amine tertiary me nā waiwai catalytic a i ʻole nā iona metala i loko o ka hale polyether.ʻO ke kumu o ka hoʻemi ʻana i ka nui o ka catalyst i loko o ka ʻōnaehana foaming, hoʻemi i ka waiwai VOC a me ka atomization haʻahaʻa o nā huahana foam.
l Amino-terminated polyether polyol: ʻO kēia polyether ka nui loa o ka hana catalytic, pōkole manawa pane, wikiwiki demoulding, a hoʻomaikaʻi maikaʻi loa i ka ikaika o ka huahana (ʻoi aku ka ikaika o ka wā mua), ka hoʻokuʻu ʻana i ka mold, ke kūpaʻa wela, a me ka pale ʻana i ka solvent., ua ho'emi 'ia ka mahana o ke kūkulu 'ana, ua ho'onui 'ia ka laulā, a he mea ho'ohiki hou 'ia.
polyester polyol
ʻO nā polyester mua loa e pili ana i ka adipic acid-based polyester polyols, a ʻo ka mākeke nui loa he microcellular foam, i hoʻohana ʻia i nā kapuaʻi kāmaʻa.I nā makahiki i hala iho nei, ua ʻike ʻia nā ʻano ʻano hou i kēlā me kēia, e hoʻonui ana i ka hoʻohana ʻana i nā polyester polyols ma PUF.
l Aromatic dicarboxylic acid-modified adipic acid-based polyester polyol: ka nui o ka synthesizing polyester polyol ma ka hoʻololi hapa ʻana i ka adipic acid me ka phthalic acid a i ʻole terephthalic acid, hiki ke hoʻomaikaʻi i ka ikaika mua o ka huahana a hoʻomaikaʻi i ke kūpaʻa o ka wai a me ka paʻakikī, ʻoiai e hoʻemi ana i nā kumukūʻai. ʻ
l Polycarbonate polyol: Hiki i kēia ʻano huahana ke hoʻomaikaʻi nui i ke kūpaʻa hydrolysis, ka pale ʻana i ka ea, ke kūpaʻa wela a me ka paʻakikī o nā huahana foam, a he ʻano hoʻohiki.
l Poly ε-caprolactone polyol: ʻO ka puʻupuʻu PU i hoʻohui ʻia mai ia mea he maikaʻi ke kūpaʻa wela, ka pale hydrolysis a me ke kūpaʻa abrasion, a pono e hana ʻia kekahi mau huahana kiʻekiʻe.
l Aromatic polyester polyol: Ua hoʻomohala ʻia e ka hoʻohana piha ʻana i nā huahana polyester ʻōpala i ka wā mua, a ua hoʻohana nui ʻia ia i ka PU rigid foam.I kēia manawa ua hoʻonui ʻia ia i ka puʻu palupalu PU, pono nō hoʻi e nānā
ʻO nā mea ʻē aʻe Hiki ke hoʻopili ʻia kekahi pūhui me ka hydrogen ikaika i ka PUF.Wahi a nā hoʻololi o ka mākeke a me nā koi o ka mālama ʻana i ke kaiapuni, pono ia e hoʻohana piha i nā huahana kuaʻāina a synthesize i ka biodegradable PU soft foam.
l Nā polyols kumu ʻaila Castor: Ua hoʻohana ʻia kēia mau huahana i ka PUF ma mua, a ʻo ka hapa nui o ia mau mea i hana ʻia mai ka ʻaila castor maʻemaʻe i hoʻololi ʻole ʻia e hana i nā ʻōpū semi-rigid.Manaʻo wau e hoʻohana i ka ʻenehana transesterification, a ua hoʻokomo ʻia nā ʻano waiʻona kaumaha molekala kiʻekiʻe i loko o ka ʻaila castor e synthesize i nā kikoʻī like ʻole.
Derivatives, hiki ke hana ʻia i nā PUF palupalu a paʻakikī.
l Nā polyols moʻo ʻaila meaʻai: Ua hoʻopilikia ʻia e nā kumukūʻai aila, ua ulu wikiwiki ia mau huahana.I kēia manawa, ʻo ka hapa nui o nā huahana i hana ʻia he ʻaila soy a me nā huahana ʻaila palma, a hiki ke hoʻohana ʻia ka aila pulupulu a i ʻole ka aila holoholona no ka hoʻomohala ʻana i nā huahana moʻo, hiki ke hoʻohana piha ʻia, hoʻemi i nā kumukūʻai, a he biodegradable a pili i ka nohona. .
polyisocyanate
ʻElua mau ʻano isocyanates, TDI a me MDI, i hoʻohana mau ʻia i ka hana ʻana i ka flexible polyurethane foam, a ua hoʻohana nui ʻia nā hybrids TDI/MDI i loaʻa i ka moʻo HR.Ma muli o nā koi palekana kaiapuni, he haʻahaʻa loa ka ʻoihana kaʻa no ka waiwai VOC o nā huahana foam.No laila, ua hoʻohana nui ʻia nā MDI maʻemaʻe, crude MDI a me nā huahana MDI i hoʻololi ʻia i ka puʻu palupalu PU e like me nā huahana palupalu PU nui.
pūhui polyol
MDI wai
Maʻemaʻe 4,4′-MDI paʻa i ka lumi wela.ʻO ka mea i kapa ʻia ʻo MDI liquefied e pili ana i ka MDI i hoʻololi ʻia i nā ʻano like ʻole a he wai i ka mahana wela.Hiki ke hoʻohana ʻia ka hana o liquefied MDI no ka hoʻomaopopo ʻana i ka MDI i hoʻololi ʻia i ka hui nona ia.
l urethane-modified MDI me ka hana o 2.0;
l Carbodiimide-modified MDI me ka hana o 2.0;
l MDI i hoʻololiʻia me ka diazetacyclobutanone imine,ʻo 2.2 ka hana;
l MDI i hoʻololi ʻia me ka urethane a me ka diazetidinimine me kahi hana o 2.1.
ʻO ka hapa nui o kēia mau huahana i hoʻohana ʻia i nā huahana i hoʻoheheʻe ʻia e like me HR, RIM, ʻili ʻili ponoʻī, a me nā micro-foams e like me nā kapuaʻi kāmaʻa.
MDI-50
He hui ia o 4,4′-MDI a me 2,4′-MDI.No ka mea he haʻahaʻa ka helu hoʻoheheʻe o 2,4′-MDI ma mua o ka mahana o ka lumi, ma kahi o 15 ° C, ʻo MDI-50 kahi wai i mālama ʻia ma ka lumi wela a maʻalahi ke hoʻohana.E hoʻolohe i ka hopena steric hindrance o 2,4′-MDI, ʻoi aku ka liʻiliʻi o ka reactive ma mua o ke kino 4,4 a hiki ke hoʻoponopono ʻia e kahi catalyst.
MDI a i ʻole PAPI
Aia kāna hana ma waena o 2.5 a me 2.8, a hoʻohana maʻamau ia i nā ʻūhā paʻa.I nā makahiki i hala iho nei, ma muli o nā kumu kumu kūʻai, ua hoʻohana ʻia i loko o ka mākeke puaʻa palupalu, akā pono e hoʻomaopopo ʻia ma muli o kāna hana kiʻekiʻe, pono e hōʻemi i ka nui o ka hoʻopili ʻana i ka hoʻolālā ʻano.Mea hui, a hoʻonui paha i ka plasticizer kūloko.
Kokua
mea hoʻopāpā
He hopena nui ka catalyst ma ka polyurethane foam, a me ia, hiki ke hoʻokō i ka hana wikiwiki i ka lumi wela.ʻElua ʻano nui o nā catalysts: nā amine tertiary a me nā catalysts metala, e like me triethylenediamine, pentamethyldiethylenetriamine, methylimidazole, A-1, a me nā mea ʻē aʻe. , potassium octoate, organic bismuth, etc. nā mea hoʻoheheʻe metala.I kēia manawa, ua kūkulu ʻia nā ʻano catalysts like ʻole lohi, trimerization-type, complex-type a me haʻahaʻa-VOC, i hoʻokumu ʻia ma luna o nā ʻano catalysts.
No ka laʻana, ʻo ka Dabco series o nā hui huahana gas, ʻo ke kumu kumu kumu he triethylenediamine:
l Dabco33LV he 33% triethylenediamine/67% dipropylene glycol
l Dabco R8020 Triethylenediamine aia 20%/DMEA80%
l Dabco S25 triethylenediamine he 25%/butanediol 75%
l Dabco8154 triethylenediamine/ʻakika lohi lohi
l Dabco EG Triethylenediamine he 33%/ Ethylene Glycol 67%
l Dabco TMR series trimerization
l Dabco 8264 Huipuia Bubbles, Mea Kaulike Kaulike
l Dabco XDM meaʻala haʻahaʻa
Ma lalo o ke kūlana o ka nui o nā catalysts, pono mākou e hoʻomaopopo mua i nā ʻano o nā catalysts like ʻole a me kā lākou mau loina hana e loaʻa ai ke koena o ka ʻōnaehana polyurethane, ʻo ia hoʻi, ke kaulike ma waena o ka wikiwiki o ka huʻi a me ka wikiwiki gelation;ʻO ke kaulike ma waena o ka wikiwiki o ka gelation a me ka nui o ka puaʻa, a me ka wikiwiki o ka huʻi a me ke koena fluidity waiwai, etc.
ʻO nā mea hoʻoheheʻe metala ʻo ia nā ʻano gel-type catalysts.Loaʻa i nā catalysts ʻano tin-type maʻamau ka hopena gel ikaika, akā ʻo kā lākou hemahema ʻaʻole lākou e kū i ka hydrolysis a me ka maikaʻi ʻole o ka ʻelemakule wela.ʻO ka puka hou ʻana mai o nā mea hoʻoheheʻe bismuth organik e hoʻohuli i ka nānā.ʻAʻole wale ia i ka hana o ka catalyst tin, akā loaʻa nō hoʻi ke kūpaʻa hydrolysis maikaʻi a me ke kūpaʻa ʻelemakule wela, kahi kūpono loa no ka hoʻohui ʻana i nā mea.
mea hoʻopaʻa pahu
Hoʻokani ia i ka hana o ka emulsifying i ka mea ʻōhū, hoʻopaʻa i ka pahu a me ka hoʻoponopono ʻana i ke kelepona, a hoʻonui i ka solubility like o kēlā me kēia ʻāpana, he mea kōkua ia no ka hoʻokumu ʻana i nā bubbles, kaohi i ka nui a me ka like ʻole o ka cell, a paipai i ke koena o ka haʻalulu ʻana o ka huʻa.He elastic nā paia e mālama i nā keena a pale i ka hāʻule.ʻOiai ka liʻiliʻi o ka nui o ka stabilizer foam, he hopena koʻikoʻi ia i ke ʻano o ke kelepona, nā waiwai kino a me ke kaʻina hana o ka PU flexible foam.
I kēia manawa, hoʻohana ʻia nā oligomers silicone / polyoxyalkylene ether block hydrolysis-resistant ma Kina.Ma muli o ka hoʻohana ʻana i nā ʻōnaehana foam ʻokoʻa, ʻokoʻa ka ratio o ka māhele hydrophobic / hydrophilic, a ʻokoʻa ka hoʻololi ʻana o ka loulou kaulahao ma ka hope o ka hale poloka., e hana i nā mea hoʻopalekana silika no nā huahana puaa like ʻole.No laila, i ke koho ʻana i kahi stabilizer foam, pono ʻoe e hoʻomaopopo i kāna hana a me kāna hana, mai poina iā ia, mai hoʻohana ʻole ʻia, a hoʻopilikia i nā hopena.No ka laʻana, ʻaʻole hiki ke hoʻohana ʻia ka aila silicone foam palupalu i ka huʻa kiʻekiʻe, i ʻole e hoʻemi ʻia ka ʻaila, a ʻaʻole hiki ke hoʻopili ʻia ka aila silicone kiʻekiʻe e pale i ka huʻa palupalu, inā ʻaʻole e hāʻule ka huʻi.
Ma muli o ka pono o ka mālama ʻana i ke kaiapuni, pono nā ʻoihana kaʻa a me nā lako lako i nā huahana me ka haʻahaʻa atomization a me ka waiwai haʻahaʻa VOC.Ua hoʻomohala ʻia nā hui like ʻole i ka atomization haʻahaʻa a me ka waiwai haʻahaʻa VOC waiwai stabilizers, e like me Dabco DC6070 i hoʻokuʻu ʻia e Gas Products Company, ʻo ia ka ʻaila silicone atomization haʻahaʻa no ka ʻōnaehana TDI.;ʻO Dabco DC2525 kahi aila silicone fogging haʻahaʻa no nā ʻōnaehana MDI.
mea hoʻohāhā
ʻO ka mea hoʻohāhā no ka PU palupalu palupalu ka nui o ka wai, hoʻohui ʻia e nā mea hoʻoulu kino kino.I ka hana ʻana i ka pahu pahu, e noʻonoʻo ana i ka nui o ka wai i nā huahana haʻahaʻa haʻahaʻa, ʻoi aku ma mua o 4.5 mau ʻāpana no 100 mau ʻāpana e piʻi ai ka mahana o loko o ka ʻūhā, ʻoi aku ma mua o 170 ~ 180 ° C, e hopena i ka hoʻopau ʻana o ke ahi. pono e hoʻohana ʻia kahi mea hoʻohāhā haʻahaʻa hydrocarbon.Kōkua kekahi i ka hōʻemi ʻana i ka nui, a ʻo kekahi e hoʻoneʻe i ka nui o ka wela.I nā lā mua, hoʻohana ʻia ka hui ʻana o ka wai/F11.Ma muli o nā pilikia palekana kaiapuni, ua pāpā ʻia ʻo F11.I kēia manawa, hoʻohana ʻia ka hapa nui o ka wai hoʻololi/dichloromethane series a me ka wai/HCFC-141b series.No ka mea, hoʻohaumia ʻia nā huahana moʻo dichloromethane i ka lewa, he ʻano hoʻololi ia, ʻoiai nā huahana HFC series: HFC-245fa, -356mfc, etc. I mea e hoʻokō ai i nā pono o ka hoʻohaʻahaʻa ʻana i ke kiʻekiʻe o ka mahana, ua hoʻolauna nā kānaka i nā kaʻina hou, nā ʻenehana hoʻoulu ʻana i ke kaomi ʻino, ka ʻenehana hoʻoluʻu ikaika a me ka ʻenehana CO2 wai e hoʻonā i ka pilikia, ʻo ke kumu e hoʻemi i ka nui o ka wai a i ʻole e hoʻemi i ka mahana o loko. o ka pua
Manaʻo wau i ka ʻenehana CO2 wai no ka hana ʻana i nā pōpoki poloka, ʻoi aku ka maikaʻi no nā ʻoihana liʻiliʻi a me ka liʻiliʻi.Ma ka ʻenehana LCO2, ua like nā ʻāpana 4 o LCO2 me 13 ʻāpana o MC.ʻO ka pilina ma waena o ka hoʻohana ʻana i ka wai a me ka wai CO2 i hoʻohana ʻia no ka hana ʻana i nā pua o nā ʻano like ʻole.
13.34.86.520.0
15.24.55.015.3
16.04.54.012.3
17.33.94.313.1
27.72.52.06.2
pale ahi
ʻO ka pale ahi a me ka pale ʻana i ke ahi ka hopohopo o nā kānaka i nā manawa a pau.ʻO koʻu ʻāina i hoʻokuʻu hou ʻia "Nā Manaʻo a me nā Kūlana no ka Hana Hoʻohuhi ʻana o nā Huahana Hoʻopaʻa ʻAi ʻAi a me nā ʻāpana ma nā wahi ākea" he mau koi hou ʻo GB20286-2006 no ka hoʻopaʻa ahi.No ke ahi retardant grade 1 foam Pono pono: a), peak heat release rate ≤ 250KW/m2;b), awelika manawa kuni ≤ 30s, awelika wela wela ≤ 250mm;c), mākia mānoanoa uahi (SDR) ≤ 75;d).
ʻO ia hoʻi: ʻekolu mau mea pono e noʻonoʻo ʻia: pale ahi, haʻahaʻa uahi, a haʻahaʻa ka uahi ʻona.I mea e kau ai i mua i nā koi kiʻekiʻe no ke koho ʻana i nā mea pale ahi, e like me nā kūlana ma luna, ke manaʻoʻiʻo nei au ʻoi aku ka maikaʻi o ke koho ʻana i nā ʻano like ʻole hiki ke hana i kahi papa kalapona mānoanoa a hoʻokuʻu i ka uahi ʻawaʻawa a haʻahaʻa paha.I kēia manawa, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka phosphate ester-based kiʻekiʻe molecular weight retardants, a i ʻole halogen-free aromatic hydrocarbons me nā ʻano like ʻole heterocyclic kiʻekiʻe wela, a me nā mea ʻē aʻe. a i ʻole nitrogen heterocyclic flame retardant Ua pololei ka lāʻau.
ʻē aʻe
ʻO nā mea hoʻohui ʻē aʻe ka mea nui: pore openers, cross-linking agents, antioxidants, anti-fogging agents, etc. I ke koho ʻana, pono e noʻonoʻo ʻia ka mana o nā mea hoʻohui i ka hana o nā huahana PU, a me kona toxicity, migration, compatibility, etc. . ninau.
5 huahana
I mea e hoʻomaopopo hou aku ai i ka pilina ma waena o ke ʻano a me ka hana ʻana o ka puʻupuʻu palupalu PU, ua hoʻolauna ʻia kekahi mau hiʻohiʻona hōʻike no ka ʻike:
1. ʻO ke ʻano maʻamau a me nā waiwai o ka poloka polyether PU pulu palupalu
Polyether triol 100pbw TDI80/20 46.0pbw Organotin catalyst 0.4pbw Tertiary amine catalyst 0.2pbw Silicon foam stabilizer 1.0pbw Wai 3.6pbw Co-foaming agent 0~12pbw Na Waiwai: Foam density, k2.4m ka ikaika, k2.4m 20 Kaha waimaka, N/m 385 Hoʻonohonoho hoʻoemi, 50% 6 90% 6 Haawe Cavitation, kg (38cm×35.6cm×10cm) Deformation 25% 13.6 65% 25.6 Paʻa pōlele hāʻule, % 38 I nā makahiki i hala iho nei, i mea e hālāwai ai me ka nā pono o ka mākeke, hana pinepine kekahi mau ʻoihana i ka huʻa haʻahaʻa haʻahaʻa (10kg / m3).I ka hana ʻana i ka huʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, ʻaʻole ia e hoʻonui wale i ka mea hoʻohua a me ka mea hoʻohua kōkua.ʻO ka mea hiki ke hana ʻia, pono e hoʻohālikelike ʻia me kahi surfactant silika paʻa kiʻekiʻe a me kahi catalyst.
Ka hana ʻana o ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa.
Pahu mau pahu pahu mau pahu polyether polyol 100100100100100 Wai 3.03.04.55.56.6 A-33 catalyst 0.20.20.20.250.18 Silicon surfactant B-81101.01.21.11.93.8 Stannous.21.11.93.8 Stannous.21.11.93.8 Stannous. 7.57.512.515.034.0 TDI80/2041.444.056.073 .0103.0 Kaha, kg/m3 23.023.016.514.08.0
ʻO ke kumu hoʻohāhā pōʻaiapili: EO/PO ʻano polyether polyol (OH:56) 100pbw Wai 6.43pbw MC mea hoʻohāhā 52.5pbw Silicon surfactant L-628 6.50pbw Catalyst A230 0.44pbw Stannous octoate D19 0.09 pbw 0.44pbw Stannous octoate D19/0.985 s. w Ka nui o ka pua, kg/m3 7.5
2. ʻO Liquid CO2 ka mea hoʻoheheʻe hui e hana i ka huʻa haʻahaʻa haʻahaʻa
Polyether triol (Mn3000) 100 100 Wai 4.9 5.2 Liquid CO2 2.5 3.3 Silicone surfactant L631 1.5 1.75 B8404 Amine catalyst A133 0.28 0.30 Stannous Flag octoate 0.14 0.14 0.17 F. , kg/m3 16 16
Penei ke ano ma'amau: Polyether triol (Mn3000) 100pbw Wai 4.0pbw LCO2 4.0~5.5pbw Catalyst A33 0.25pbw Silicon surfactant SC155 1.35pbw Stannous octoate D19 0.30pbw/1000/1000. 16.5
3. MDI piha haʻahaʻa haʻahaʻa polyurethane huʻa palupalu
Hoʻohana nui ʻia ka ʻōpala PU palupalu i ka hana ʻana i nā cushions noho kaʻa.ʻO ka hoʻohaʻahaʻa ʻana me ka ʻole o ka pili ʻana i nā waiwai kino ka pahuhopu o ka hoʻomohala ʻana.
Kumu: High activity polyether (OH: 26~30mgKOH/g) 80pbw Polymer polyol (OH: 23~27mgKOH/g) 20pbw Crosslinking agent 0~3pbw Water 4.0pbw Amine catalyst A-33 2.8pbw Ili hana o silicone oil Agent B.87 pbw MDI index 90pbw Hana: Foam center density 34.5kg/m3 Hardness ILD25% 15.0kg/314cm2 Kaha waimaka 0.8kg/cm Tensile ikaika 1.34kg/cm2 Elongation 120% Rebound rate 62% Permanent compression set (Dry%) 13.5%
4. Haʻahaʻa haʻahaʻa, piha MDI kaiapuni-aloha noho kaʻa cushion
ʻO ka homologue o MDI maʻemaʻe: M50-ʻo ia hoʻi, ka huahana o 4,4′MDI 50% 2,4′MDI 50%, hiki ke hoʻoulu ʻia i ka lumi wela, hoʻomaikaʻi i ka wai, hoʻemi i ka nui o ka huahana, a hoʻemi i ke kaumaha o ke kaʻa. olelo hoopomaikai loa.ʻO ka huahana:
Hana: Polyol polyether ikaika kiʻekiʻe (OH: 28mgKOH/g) 95pbw 310 Auxiliary* 5pbw Dabco 33LV 0.3pbw Dabco 8154 0.7pbw Silicon surfactant B4113 0.6pbw A-1 0.1pbw index Mb5
Nā waiwai kino: Ka manawa kaha (mau) 62 Ka manawa piʻi (s) 98 Mānoanoa ʻōhū noa, kg/m3 32.7 Ka hoʻoneʻe ʻana o ka ukana hoʻoemi, kpa: 40% 1.5 Elongation, % 180 Ka ikaika haehae, N/m 220
Nānā: *310 Kōkua: Ke kūʻai aku nei au, he mea hoʻonui kaulahao kūikawā.
5. ʻO ke kūpaʻa kiʻekiʻe, ʻoluʻolu ka holo ʻana i ka pua PU
I kēia mau lā, koi ʻia ka mākeke e hoʻololi ʻole i ka waiwai kino o nā cushions noho puaʻa, akā ʻaʻole e luhi ka poʻe a me ka neʻe ʻana i nā cushions noho kūlana kiʻekiʻe ma hope o ka hoʻokele lōʻihi.Ma hope o ka noiʻi ʻana, loaʻa i nā ʻāpana o loko o ke kino o ke kanaka, ʻoi aku ka nui o ka ʻōpū, he alapine ma kahi o 6Hz.Inā loaʻa ka resonance, e hoʻoulu ʻia ka nausea a me ka luaʻi.
ʻO ka mea maʻamau, ʻo ka haʻalulu haʻalulu o ka ʻūhā kiʻekiʻe-resilience ma 6Hz ʻo 1.1 ~ 1.3, ʻo ia hoʻi, i ka wā e holo ana ke kaʻa, ʻaʻole ia e nāwaliwali akā e hoʻonui, a hiki i kekahi mau huahana formula ke hoʻemi i ka haʻalulu i 0.8 ~ 0.9.Manaʻo ʻia kahi hoʻolālā huahana, a ʻo kāna hoʻoili vibration 6Hz aia ma ke kiʻekiʻe o 0.5 ~ 0.55.
Hoʻokumu: High activity polyether polyol (Mn6000) 100pbw Silicon surfactant SRX-274C 1.0pbw Tertiary amine catalyst, Minico L-1020 0.4pbw Tertiary amine catalyst, Minico TMDA 0.15pbw Water 3.6pbw % Ipoly9%
Nā waiwai kino: Ka mānoanoa holoʻokoʻa, kg/m3 48.0 25%ILD, kg/314cm2 19.9 Rebound, % 74 50% kaomi
Ka ikaika hoemi, ( maloo ) 1.9 ( pulu ) 2.5 6Hz ka hoʻolele ʻana i ka haʻalulu 0.55
6. Hoʻihoʻi lohi a i ʻole ka huʻa viscoelastic
ʻO ka mea i kapa ʻia ʻo slow-rebound PU foam e pili ana i ka huʻa ʻaʻole i hoʻihoʻi ʻia i kona ʻano kumu ma hope koke o ka hoʻololi ʻia ʻana o ka huʻa e ka ikaika o waho, akā hoʻihoʻi lohi ʻia me ka ʻole o ke koena o ka ʻili.Loaʻa iā ia ka cushioning maikaʻi loa, ke kani ʻana o ke kani, ke sila a me nā waiwai ʻē aʻe.Hiki ke hoʻohana ʻia i ka hoʻokele walaʻau o nā ʻenekini kaʻa, ke kāʻei kua, nā mea pāʻani keiki a me nā uluna olakino.
Laʻana hoʻohālike: High activity polyether (OH34) 40~60pbw Polymer polyether (OH28) 60~40 pbw Cross-adhesive ZY-108* 80~100 pbw L-580 1.5 pbw Catalyst 1.8~2.5 pbw Wai 1.6~2.5 pbw Wai 1.6~2.2. * 1.05 pbw Nānā: *ZY-108, he hui o ka polyether kaumaha haʻahaʻa haʻahaʻa haʻahaʻa multifunctional** PM-200, kahi hui o MDI-100 liquefied, nā huahana Wanhua ʻelua Nā Pono: ʻO ka nui o ka pua, kg/m3 150~165 Paʻa, kahakai. A 18~15 Ka ikaika haehae, kN/m 0.87~0.76 Elongation, % 90~130 Rebound rate, % 9~7 Hoihoi manawa, kekona 7~10
7. ʻO ka polyether ʻano ʻili ponoʻī microcellular foam kūʻokoʻa i ka flex fatigue miliona mau manawa
Hiki ke hoʻopili ʻia ka ʻūhā i nā kapuaʻi PU a me nā huila hoʻokele
实例： DaltocelF-435 31.64 pbw Arcol34-28 10.0 pbw DaltocelF-481 44.72 pbw Arcol2580 3.0 pbw 乙二醇6.0 pbw 催化 Ebw 1.0 pbw 催化 剂Dabco 1.0 pbw 1. 7 0.3 pbw 硅表面活性剂DC-193 0.3 pbw L1 412T 1.5 pbw Wai 0.44 pbw MDI Suprasec2433 71 pbw
Nā waiwai kino: ʻAiʻa mahu: ma kahi o 0.5g∕cm3 β-belt deflection, KCS 35～50, maikaʻi loa
8. ʻAi ahi, haʻahaʻa uahi, kiʻekiʻe resilience huʻa
Me ka ulu wikiwiki ʻana o ka hoʻokele waiwai o ka ʻāina, ʻoi aku ka kiʻekiʻe o nā ʻoihana like ʻole no ka hoʻopaneʻe ʻana o ka lapalapa o nā huahana foam, ʻoi aku ka mokulele, nā kaʻa, nā kaʻa kaʻa holo wikiwiki, a me nā sofa home, etc. Nontoxic.
Ma ka ʻike ʻana i ke kūlana i luna, ua hoʻomohala ka mea kākau a me nā hoa hana i kahi flame retardant grade (oxygen index 28 ~ 30%), kahi haʻahaʻa haʻahaʻa haʻahaʻa (ʻo ka waiwai honua he 74, a ʻo kēia huahana he 50 wale nō), a ʻaʻole i loli ka rebound o ka huʻa.Hoʻopuka ka uahi keʻokeʻo
Ka laʻana o ka laʻana: YB-3081 polyether pale ahi 50 pbw High activity polyether (OH34) 50 pbw Silicone surfactant B 8681 0.8~1.0 pbw Wai 2.4~2.6 pbw DEOA 1.5~3 pbw Catalyst A-1 etc.
Nā waiwai kino: ʻO ka nui o ka pahu, kg/m3 ≥50 Ka ikaika hoʻoemi, kPa 5.5 Ka ikaika uʻi, kPa 124 Rebound rate, % ≥60 Compression deformation, 75% ≤8 Oxygen index, OI% ≥ 28 Smoke density ≤50
9. ʻO ka wai ka mea hoʻohāhā, ʻo nā mea a pau e pili ana i ka ʻili ponoʻī
Ua pāpā loa ʻia ʻo HCFC-141b foaming agent ma nā ʻāina ʻē.ʻO ka CP foaming agent hiki ke puhi.ʻO ka HFC-245fa a me ka HFC-365mfc mea hoʻohāhā he pipiʻi a ʻae ʻole ʻia.Huʻa ʻili.I ka wā ma mua, ʻo ka poʻe hana PU ma ka home a ma waho wale nō ka nānā ʻana i ka hoʻololi ʻana o ka polyether a me ka isocyanate, no laila ʻaʻole maopopo ka ʻili o ka ʻūhā a ua kiʻekiʻe ke kiʻekiʻe.
I kēia manawa ua ʻōlelo ʻia kahi pūʻulu o nā formula, i hōʻike ʻia e:
l ʻAʻole hoʻololi ka polyether polyol kumu, a hoʻohana ʻia ka Mn5000 a i ʻole 6000 maʻamau.·
l ʻAʻole hoʻololi ka isocyanate, hiki ke hoʻohana ʻia C-MDI, PAPI a i ʻole MDI i hoʻololi ʻia.
l E hoʻohana i ka mea hoʻohui kūikawā SH-140 e hoʻoponopono i ka pilikia.·
Kumu kumu:
l Kiʻekiʻe hana polyether triol Mn5000 65pbw
l SH-140* 35pbw
l Hoʻonui kaulahao: 1,4-butanediol 5pbw
l Ka mea hoʻopili keʻa: glycerol 1.7pbw
l Wehewehe 'ana: K-6530 0.2 ~ 0.5pbw
l Catalyst A-2 1.2~1.3pbw
l Hoʻopili kala i ka nui kūpono l Ka wai 0.5pbw
l MR-200 45pbw
Nānā: *SH-140 kā mākou huahana.
Nā waiwai kino: ʻo ka mānoanoa holoʻokoʻa o ka pahu he 340 ~ 350kg / m3
Nā huahana: ka ʻili maʻemaʻe, ka ʻōpala māmā, ka haʻahaʻa haʻahaʻa.
Ka manawa hoʻouna: ʻAukake-12-2022