Polyurethane (PU), onye aha ya bụ polyurethane, bụ ngwakọta polymer.Ọ bụ Otto Bayer na ndị ọzọ mepụtara ya na 1937. Polyurethane nwere ụdị abụọ: ụdị polyester na ụdị polyether.Enwere ike ịme ha ka ọ bụrụ plastik polyurethane (karịsịa ụfụfụ), eriri polyurethane (a na-akpọ spandex na China), roba polyurethane na elastomers.
Polyurethane dị nro na-enwekarị usoro ahịrị ahịrị thermoplastic.Ọ nwere nkwụsi ike ka mma, nguzogide kemịkalụ, resilience na akụrụngwa karịa ihe ụfụfụ PVC, ma nwee obere nrụrụ mkpakọ.Ihe mkpuchi ọkụ dị mma, mkpuchi ụda, mgbochi-vibration na arụmọrụ nje.Ya mere, a na-eji ya dị ka nkwakọ ngwaahịa, ihe mkpuchi ụda, na ihe nzacha.
Plastic polyurethane siri ike nwere ịdị arọ dị arọ, mkpuchi ụda dị mma, ọrụ mkpuchi okpomọkụ, nguzogide kemịkalụ, ịrụ ọrụ eletrik dị mma, nhazi dị mfe, na ntinye mmiri dị ala.A na-ejikarị ya eme ihe maka ihe owuwu, ụgbọ ala, ụlọ ọrụ ụgbọ elu, na mkpuchi ọkụ.
Ngwongwo nke polyurethane elastomer dị n'etiti plastik na roba, mmanụ na-eguzogide mmanụ, nkwụsị nke abrasion, nkwụsị okpomọkụ dị ala, nkwụsị nke ịka nká, ike siri ike na elasticity.A na-ejikarị eme ihe na ụlọ ọrụ akpụkpọ ụkwụ na ụlọ ọrụ ahụike.A pụkwara iji polyurethane mee ihe ntanye, mkpuchi, akpụkpọ anụ sịntetik, wdg.
Polyurethane pụtara na 1930.Mgbe ihe fọrọ nke nta ka ọ bụrụ afọ iri asatọ nke mmepe teknụzụ, ejirila ihe a mee ihe n'ọtụtụ ebe n'akụkụ ihe eji arụ ụlọ, ihe owuwu, ihe ndị dị mkpa kwa ụbọchị, ụgbọ njem, na ngwa ụlọ.
Ahịa polyurethane zuru ụwa ọnụ dị na mba ndị mepere emepe na Europe na America.Mpaghara Asia-Pacific bụ China, Japan na South Korea na-anọchi anya ya.Mba na mpaghara ndị a dị n'elu bụ 90% nke ahịa polyurethane zuru ụwa ọnụ.N'ime ha, mkpokọta polyurethane nke obodo m bụ ọkara nke ụwa.Enwere ọtụtụ ụdị ngwaahịa polyurethane n'ụwa, a na-ejikwa ha na mpaghara dị iche iche.Site na njedebe nke 2016, ngụkọta mmepụta nke polyurethane n'ụwa ruru ihe dị ka nde tọn 22.
Oge nzipu: Jun-03-2019