Māhele: Thermoplastic Polyurethane Elastomer

Thermoplastic polyurethane elastomer, i ʻike ʻia ʻo TPU, he ʻano ia o (AB)n block linear polymer. Hōʻike ʻia ʻo A i ke kaumaha molekala kiʻekiʻe (1000~6000) polyester a i ʻole polyether, a ʻo B ke hōʻike nei i kahi diol i loaʻa i ka 2~12 kaulahao kalapona pololei. ʻO ka hana kemika ma waena o nā māhele AB he diisocyanate. Ke hilinaʻi nei ka lāʻau polyurethane thermoplastic i ka intermolecular hydrogen bonding cross-linking a i ʻole ka hoʻopili ʻana ma waena o nā kaulahao macromolecular. Me ka hoʻonui a i ʻole ka emi ʻana o ka mahana, hiki ke hoʻohuli ʻia kēia mau hale hoʻohui ʻelua. Ma ke kūlana hoʻoheheʻe ʻia a i ʻole ka hoʻonā ʻana, nāwaliwali ka ikaika intermolecular ma waena o nā molekala, a ma hope o ka hoʻoilo ʻana a i ʻole ka hoʻoheheʻe ʻana, hoʻopili ka ikaika intermolecular ikaika iā lākou e hoʻihoʻi i ka hana paʻa mua. Maʻamau TPU me ka spandex, etc.

Hoʻomaka Kōkua

Thermoplastic polyurethane elastomer (TPU) he ʻano mea elastic i hiki ke hoʻopaʻa ʻia e ka hoʻomehana a hoʻoheheʻe ʻia e nā mea hoʻoheheʻe. Loaʻa iā ia nā waiwai piha maikaʻi loa e like me ka ikaika kiʻekiʻe, ka paʻakikī kiʻekiʻe, ka pale ʻana i ka ʻaʻahu, a me ka pale ʻana i ka aila, a me ka hana hoʻoponopono maikaʻi. Hoʻohana nui ia i nā ʻoihana e like me ka pale aupuni, ka lāʻau lapaʻau, a me ka meaʻai.

Me kāna hana maikaʻi loa a me ka hoʻohana ākea, ua lilo ka thermoplastic polyurethane elastomer i kekahi o nā mea koʻikoʻi thermoplastic elastomer. He laina laina kona mau mole a he liʻiliʻi a ʻaʻohe mea hoʻohui kemika. Nui nā pilina keʻa kino i haku ʻia me nā paʻa hydrogen ma waena o nā kaulahao molekika polyurethane linear, a ʻo nā mea paʻa hydrogen ke kuleana i ka hoʻoikaika ʻana i kā lākou morphology, a laila e hāʻawi ana i nā waiwai maikaʻi loa e like me ke modulus kiʻekiʻe, ikaika kiʻekiʻe, ke kūpaʻa maikaʻi loa, ke kūpaʻa kemika, ke kūpaʻa hydrolysis. , kiʻekiʻe a me ka haʻahaʻa wela kū'ē, a me ka mold kū'ē. ʻO kēia mau waiwai maikaʻi e hoʻohana nui ʻia ka polyurethane thermoplastic i nā ʻano he nui e like me nā kāmaʻa, nā kaula, nā lole, nā kaʻa, nā lāʻau lapaʻau a me ke olakino, nā paipu, nā kiʻiʻoniʻoni, a me nā pepa. ʻAʻole pono ka huahana hope i ka vulcanization cross-linking, hiki ke hoʻopōkole i ke kaʻina hana a hoʻemi i ka hoʻohana ʻana i ka ikehu. No ka mea ʻo ia ka polymer structure linear, hiki ke hoʻohana ʻia ka ʻenehana like a me nā mea hana e like me ka thermoplastic plastics no ka hana ʻana, e like me ka hoʻoheheʻe ʻana, extrusion, blow molding, a me ka calendering, kūpono loa no ka hana nui o nā ʻāpana liʻiliʻi a me nā ʻāpana liʻiliʻi. Hiki ke hana hou ʻia nā mea ʻōpala a hoʻohana hou ʻia, a hiki ke hoʻohana ʻia nā mea hoʻohui like ʻole a i ʻole nā ​​​​mea hoʻopihapiha i ka hana ʻana a i ʻole ke kaʻina hana e hoʻomaikaʻi i kekahi mau waiwai kino a hoʻemi i nā kumukūʻai.

Maluna

Hiki ke hoʻokaʻawale ʻia nā elastomers polyurethane thermoplastic i ʻelua ʻano: polyester type a polyether type. He keʻokeʻo irregular spherical a i ʻole nā ​​ʻāpana columnar me ka density o 1.10 ~ 1.25g / cm3. ʻOi aku ka liʻiliʻi o ke ʻano o ka polyether ma mua o ke ʻano polyester. ʻO ka mahana hoʻololi aniani o ke ʻano polyether he 100.6 ~ 106.1 ℃, aʻo ke ʻano polyester ʻo 108.9 ~ 122.8 ℃. ʻOi aku ka haʻahaʻa o nā ʻano polyether a me nā polyester ma lalo o -62 ℃, a ʻoi aku ka maikaʻi o ka pale haʻahaʻa haʻahaʻa o ke ʻano polyether ma mua o ka polyester type.

ano

ʻO nā hiʻohiʻona koʻikoʻi o ka thermoplastic polyurethane elastomers he pale pale maikaʻi loa, kūpaʻa maikaʻi loa o ka ozone, paʻakikī kiʻekiʻe, ikaika kiʻekiʻe, elasticity maikaʻi, a me ke kūpaʻa haʻahaʻa haʻahaʻa. Loaʻa iā lākou ke kūpaʻa aila maikaʻi, ke kūʻē kemika, a me ke kūpaʻa kūlohelohe. I nā wahi haʻahaʻa, ʻoi aku ka maikaʻi o ka hydrolysis o ke ʻano polyether ma mua o ke ʻano polyester.

Nā ʻenehana hou a me nā mea hoʻohana hou

TPU he ʻoihana e ulu wikiwiki nei, me nā ʻenehana hou, nā huahana, a me nā noi e puka mau ana. TPU ua hoʻohana nui ʻia i nā ʻoihana like ʻole, e like me nā kāmaʻa, nā lole, nā paipu, nā kiʻiʻoniʻoni a me nā pepa, nā kaula, nā kaʻa, ke kūkulu ʻana, ka mālama ola kino, ka pale, a me nā haʻuki a me nā leʻaleʻa. TPU ʻike ʻia he ʻano ʻōmaʻomaʻo a me ke kaiapuni hou o nā mea polymer me ka hana maikaʻi loa. I kēia manawa, TPU Hoʻohana nui ʻia i ka hoʻohana haʻahaʻa, ʻoiai ʻo ka hoʻohana ʻana i ka ʻai kiʻekiʻe e hoʻomalu ʻia e kekahi mau hui multinational, me ka Bayer a me BASF o Kelemania, a me Lubrizol a me Huntsman o ʻAmelika Hui Pū ʻIa, e hoʻonui ana i kā lākou noiʻi a me ka hoʻomohala ʻana i nā huahana hou. Hoʻohui waiwai kiʻekiʻe TPU hoʻomohala mau ʻia nā huahana a hoʻokomo ʻia i ka mākeke, a TPU ua lilo nā mea i hoʻokahi o nā mea thermoplastic e ulu wikiwiki ana.

• Nā kāmaʻa kāmaʻa: nā hōʻailona kāmaʻa haʻuki, nā ʻūhā ea kāmaʻa haʻuki, nā kāmaʻa hele wāwae, nā kāmaʻa hau, nā kāmaʻa kolepa, nā kāmaʻa hau, a me nā mea lole a me nā lole.
• Nā lole: nā ʻaʻahu ski, nā ʻaʻahu ua, nā ʻeke makani, nā ʻaʻahu anuanu, nā ʻaʻahu kahua, nā diapers, nā pants physiological, a me nā mea i hui pū ʻia (ka wai a me ka hanu).
• ʻO nā lāʻau lapaʻau: nā ʻaʻahu ʻokiʻoki, nā pāpale, nā kāmaʻa, nā pads halemai, nā ʻeke hau, nā ʻeke, nā ʻeke plasma, nā kāʻei ʻokiʻoki, nā maka, a me nā mea lole a me nā mea lining, nā ʻeke ea moena.
• Nā huahana pale: nā pahu pahu mokulele, nā kiʻiʻoniʻoni mālama mea kaua, nā puka aniani, nā ʻeke wai pūʻali koa, nā ʻeke ola, nā waʻa inflatable, a me nā mea lole a me nā mea uhi, nā ʻeke air.
• Nā lako haʻuki: nā ʻili pōpeku a me nā paipu i loko, nā moena inflatable, nā ʻeke wai, nā mīkina lima ski (nā ʻeke wai ʻole), nā lole luʻu, nā ʻaʻahu ski, nā lole ʻauʻau, nā skis, logos, nā ʻeke lewa, nā pālule hāmeʻa, nā lole slimming, a me nā mea lole a me nā mea uhi.
• ʻO nā huahana ʻoihana: nā ʻaoʻao pahu pahu leo ​​leo, nā ʻili wai ʻole, nā mea hoʻoheheʻe leo, nā mea pale ahi, nā lole pale ahi, nā lole pale ahi, a me nā mea i hui pū ʻia me ka lole, nā mea uea a me nā mea uhi waho.
• ʻO nā mea hoʻohana ʻē aʻe: nā kī kelepona paʻa, nā mea pāʻani i hoʻoheheʻe ʻia, nā pā moe, nā pākaukau, nā pale ʻauʻau, nā lole lako, nā pale, nā piano, nā kīwī kamepiula, nā uhi kiʻiʻoniʻoni, a me nā mea lole a me nā mea hoʻohana.