Aha Ahịa:polyurtane

Ihe owuwu molular:

Ngwongwo kemịkal:

A na-ebu ụzọ mepụta Polyyo Bayer na 1937. Polyurethane bụ polymer nke ngalaba na-ekwu okwu nwere mosion. Urethanes bụ usoro nke carbamic acid nke dị n'ụdị nke ebe obibi ha [15]. Nnukwu uru nke pu bụ na a bụghị naanị nke atọm na carbon kama nke heteroatoms, oxygen, carbon na nitrogen [4]. Maka ngwa mmepụta ihe, enwere ike iji ihe polyhydyl. N'otu aka ahụ, enwere ike iji ụdị mma nitrogen poly-arụ ọrụ na nnọkọ njikọ ahụ. Site na igbanwe ma digharia polyhydroxyyyyyyyyyyy na polyfuncom na polyfuncontional nitrogen osisi, enwere ike syshessized [15]. A na-eji polyester ma ọ bụ polletat na-eji Hydyy mepụta polyester polyester polyther-pu, [6]. Mgbanwe na ọnụ ọgụgụ nke dochie anya na oghere dị n'etiti na n 'n' ụdọ dị iche iche na-emepụta pus site na linear iji gbazee. A na-ejikwa pirus mee ihe maka imepụta eriri na ịkpụzi [6]. A na-ejikarị pus na-agbanwe agbanwe na mmepụta nke ndị ọrụ na mkpuchi [5]. Plastics na-agbanwe agbanwe na plastics na-acha, nke mejupụtara ọtụtụ nke Pus mepụtara, enwere ike ịchọta ya n'ụdị dị iche iche na ụlọ ọrụ [7]. Iji igwe egwu dị ala, enwere ike ịmepụta ihe dị iche iche. Otu ọnụnọ okwu Hydroxy na-enye ohere maka mgbochi ọzọ, nke a na-akpọ ngalaba, ka itinye ya na Puy. Mgbanwe dị iche iche na akụkụ ndị a na-ebute ogo dịgasị iche iche tensile ike na adminsity. Ihe mgbochi na-enye usoro cringssine ike na nke nwere onye na-eyinye yinye ka ọ bụrụ ngalaba siri ike [7]. Ndị na-enye ndị na-amịpụta ihe nkiri Amorphous na nke nwere polester / pollether dị nro. A na-anara azụmahịa, a na-akpọ polymers ndị a dị ka akụkụ

Ngwa:

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 Njirimara mgbochi. 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.