He aha ka TPU? – Ka ʻike hohonu o ka thermoplastic polyurethane elastomers
ʻO Thermoplastic Polyurethane Elastomer (TPU) he mea polymer me ka elasticity kiʻekiʻe, ke kū'ē i ka abrasion, ka aila a me ka momona, a me nā waiwai anti-kahiko. Ma muli o kāna hana kiʻekiʻe, hoʻohana nui ʻia ʻo TPU i nā ʻoihana like ʻole, mai nā mea kāmaʻa, nā hihia pale no nā huahana uila a hiki i nā ʻāpana ʻenehana, he nui nā noi o TPU.
Hoʻolālā kumu a me ka hoʻokaʻawale ʻana o TPU
ʻO TPU kahi copolymer poloka linear, ʻelua ʻāpana: ʻo ka ʻāpana paʻakikī a me ka ʻāpana palupalu. Hoʻokumu pinepine ʻia ka ʻāpana paʻakikī me ka diisocyanate a me ka mea hoʻonui kaulahao, aʻo ka ʻāpana palupalu i haku ʻia me ka polyether a i ʻole polyester diol. Ma ka hoʻoponopono ʻana i ka ratio o nā ʻāpana paʻakikī a palupalu, hiki ke loaʻa nā mea TPU me ka paʻakikī like ʻole a me ka hana. No laila, hiki ke hoʻokaʻawale ʻia ka TPU i ʻekolu mau ʻāpana: polyester TPU, polyether TPU a me polycarbonate TPU.

Polyester TPU: Me ka maikaʻi o ka aila kūpaʻa a me ka kemika kūʻē, hoʻohana maʻamau ia i ka hana ʻana i nā paipu ʻoihana, nā sila a me nā ʻāpana kaʻa.
Polyether-type TPU: Ma muli o kona kūpaʻa hydrolysis maikaʻi a me ka hana haʻahaʻa haʻahaʻa, hoʻohana pinepine ʻia i ke kahua o nā mea kāmaʻa, nā mea lapaʻau a me nā uea a me nā kaula.
Polycarbonate TPU: ka hui pū ʻana i nā pono o ka polyester a me ka polyether TPU, ʻoi aku ka maikaʻi o ke kūpaʻa hopena a me ka ʻike, a kūpono i nā huahana ʻike me nā koi kiʻekiʻe.

ʻO nā hiʻohiʻona TPU a me nā pono noi
Kūʻokoʻa ʻo TPU mai nā mea ʻē aʻe he nui me kāna mau waiwai kūʻokoʻa. Loaʻa kēia mau waiwai i ke kūpaʻa abrasion kiʻekiʻe, ka ikaika mechanical maikaʻi, ka elasticity maikaʻi a me ka transparency kiʻekiʻe. He kūpaʻa maikaʻi hoʻi ʻo TPU i ka ʻaila, nā solvents a me nā haʻahaʻa haʻahaʻa. ʻO kēia mau mea maikaʻi e hoʻolilo iā TPU i mea kūpono no nā huahana e pono ai ka maʻalahi a me ka ikaika.

ʻO ka pale abrasion a me ka elasticity: ʻO ke kūpaʻa abrasion kiʻekiʻe o TPU a me ka elasticity maikaʻi e lilo ia i mea koho no nā huahana e like me nā kapuaʻi kāmaʻa, nā kaila a me nā kāʻei conveyor.
Ke kū'ē kemika a me ka aila: I loko o nā ʻoihana kemika a me nā mīkini, hoʻohana nui ʻia ʻo TPU i nā ʻāpana e like me nā hoses, sila a me nā gaskets ma muli o kāna ʻaila a me ka pale pale.
ʻIke kiʻekiʻe: Hoʻohana nui ʻia ʻo TPU Transparent i nā hihia pale no nā huahana uila a me nā mea lapaʻau ma muli o kāna mau waiwai optical maikaʻi loa.

Kaʻina hana a me ka hopena o ke kaiapuni o TPU
ʻO ke kaʻina hana o ka TPU ka mea nui i ka extrusion, injection molding a me ka puhi ʻana i nā ʻano hana, e hoʻoholo ai i ke ʻano a me ka hana o ka huahana hope. Ma o ke kaʻina hana extrusion, hiki ke hana ʻia ka TPU i nā kiʻiʻoniʻoni, nā papa a me nā paipu; ma o ke kaʻina hana hoʻoheheʻe ʻia, hiki ke hana ʻia ka TPU i nā ʻano paʻakikī o nā ʻāpana; ma o ke kaʻina hana hoʻoheheʻe ʻana, hiki ke hana ʻia i nā ʻano huahana hollow.
Mai ka ʻike kaiapuni, ʻo TPU kahi mea thermoplastic recyclable, ʻaʻole like me nā elastomers thermoset kuʻuna, hiki ke hoʻoheheʻe ʻia a hana hou ʻia ka TPU ma hope o ka hoʻomehana ʻana. Hāʻawi kēia hiʻohiʻona iā TPU i mea pono i ka hōʻemi ʻana i ka ʻōpala a me ka hoʻohaʻahaʻa ʻana i nā hoʻokuʻu kalapona. I ka wā o ka hana ʻana a me ka hoʻohana ʻana, pono e uku ʻia ka nānā ʻana i kona hopena kaiapuni, e like me ka volatile organic compound (VOC) e hoʻokuʻu ʻia i ka wā o ka hana.
TPU market outlook and development trend
Me ka piʻi nui o ka noi no ka hana kiʻekiʻe, nā mea pili i ke kaiapuni, ākea loa ka mākeke no TPU. ʻOi aku ma nā kahua o nā kāmaʻa, nā huahana uila, ʻoihana kaʻa a me nā mea lapaʻau, e hoʻonui hou ʻia ka noi o TPU. I ka wā e hiki mai ana, me ka hoʻomohala ʻana a me ka hoʻohana ʻana i ka TPU e pili ana i ka bio a me ka TPU degradable, ua manaʻo ʻia e hoʻomaikaʻi hou ʻia ka hana kaiapuni o TPU.
I ka hōʻuluʻulu ʻana, ʻo TPU kahi mea polymer me ka elasticity a me ka ikaika, a ʻo kona kūpaʻa abrasion maikaʻi loa, ke kūpaʻa kemika a me ka hana ʻana i ka hana e hiki ke hoʻololi ʻia i nā ʻoihana he nui. Ma ka hoʻomaopopo ʻana i ka "mea i hana ʻia ai ka TPU", hiki iā mākou ke hoʻomaopopo maikaʻi i ka hiki a me ke kuhikuhi o kēia mea i ka wā e hiki mai ana.