Aha Ahịa:polyurtane

Ihe owuwu molular:

Ngwongwo kemịkal:

Polyorurtane (PUN), aha polyurone, bụ ogige polymer. 1937 nke Otto Bayer na mmepụta ndị ọzọ nke ihe a. E nwere ụdị isi abụọ nke polyurtethane, ụdị polyester na ụdị pollester. Enwere ike ịme ha n'ime plastics (tumadi ụfụfụ), eriri polyurethane (a na-akpọ Spandex na China), roourtanethane roba na elastomer.
Polyrurethane na-agbanwe agbanwe bụ tumadi Linear na-ejigide ya, nke nwere nkwụsi ike, nke nwere ike iguzogide ya, residical Njirimara karịa PVC ụfụfụ, na-enweghị mgbanwe mgbanwe. Ọ nwere ezigbo mkpuchi ọkụkụ, ụda mkpuchi, na-eguzogide, na ihe ndị na-egbu egbu. Ya mere, a na-eji ya ememme, ụda mkpuchi na ihe na-edozi nzacha. Plastic post polyurtethone dị ọkụ, ụda mkpuchi ọkụ, mkpuchi ikuku dị elu, ntuli aka, ezigbo ihe nhazi, yana nnabata mmiri dị ala. A na-ejikarị ya dị ka ihe owuwu maka owuwu, ụgbọala, ụlọ ọrụ ụgbọ elu, mkpuchi mkpuchi na mkpuchi mkpuchi. Polyurethan arụmọrụ dị n'etiti plastik na roba, na-eguzogide, na-eyi iguzogide, ọnọdụ okpomọkụ dị ala, ịdị elu dị elu, na-agba mbọ. A na-ejikarị ya na ụlọ ọrụ akpụkpọ ụkwụ akpụkpọ ụkwụ na ụlọ ọrụ ọgwụ. Enwere ike ịme polyururethane, mkpuchi, akpụkpọ anụ ahụ, wdg.

Ngwa:

Polyurethanes bụ otu n'ime ihe ndị kachasị na ụwa taa. Ọtụtụ n'ime ha na-esite na ụfụfụ na-agbanwe agbanwe na-acha uhie uhie na-eme ka ihe mkpuchi na mgbidi, na-acha uhie uhie, a na-adọta ya, a na-eme ihe na-akpaghị aka. A na-ejikarị polyYurtanes n'ime afọ iri atọ gara aga n'ọtụtụ ngwa n'ihi nkasi obi ha, uru ego na ụdị ịdị mma gburugburu ebe obibi. Kedu ihe ụfọdụ na-eme polyuranes dị mma? Ndụ Poliurtane na-enye aka na-aga n'ihu ogologo ndụ nke ọtụtụ ngwaahịa. Mgbakwunye nke usoro ndụ ngwaahịa dị mkpa bụ ihe dị mkpa gburugburu ebe obibi na-ahụkarị nhọrọ nke polyuries [19-21]. Polyurethanes (Pus) na-anọchi anya klas dị mkpa nke polymet na thermoset dị ka usoro ha, na ọkụ, na kemịkalụ nke polylols na poly-couclinates dị iche iche.