Sunan samfurin:polyurehane

Tsarin kwayoyin halitta:

Kayan sunadarai:

Dr. Otto Bayer a farko Dr. Otto Bayer a 1937. Polyurthane ne mai polymer wanda ke maimaita karar. Urethanes sune abubuwan da ke tattare da Carbamic acid wanda ke wanzu ne kawai a cikin irensu [15]. Babban fa'idar PU shine cewa sarkar ba ta daɗaɗɗun abubuwa na carbon amma maimakon heteroatoms, oxygen, carbon da nitrogen [4]. Don aikace-aikacen masana'antu, ana iya amfani da ɗakin polyhydroxyl. Hakazalika, ana iya amfani da mahaɗan nitrogen a hanyar amide. Ta hanyar canzawa da kuma bambance-bambancen polyhydroxyl da mahaɗan nitrogen, ana iya samar da matsala daban-daban [15]. Polyester ko Polyether resins dauke da kungiyoyin hydroxyl ana amfani da su don samar da polyether-pu, bi da bi [6]. Bambancin cikin adadin saƙo da rarrabuwa tsakanin sarƙoƙi na reshe da ke haifar da tashin hankali daga layi zuwa gyaran. Ana amfani da linear an yi amfani da shi don kerar zaruruwa da ƙwararru [6]. Ana amfani da matsala mai sassauƙa a cikin samar da wakilan da ke ɗaure da gashi [5]. Rufin mawuyacin makami mai sauki, wanda ke yin yawancin ƙwayoyin kwari da aka samar, ana iya samunsu ta fuskoki daban-daban [7]. Yin amfani da ƙananan ƙwayar ƙwayar ƙwayar cuta na ƙwayar cuta, da yawa ana iya samar da launuka daban-daban. Kungiyar Hydroxyl Hydroxyl tana ba da damar canza tlocks, waɗanda ake kira sangare, za a saka cikin sarkar PU. Bambanci a cikin waɗannan sassan yana haifar da bambance-bambancen digiri na ƙarfi da kuma elebericity. Tubalan samar da tsauraran matakan crystalline da kuma dauke da sarkar sarkar ana kiransu da sarkar sernords [7]. Wadancan suna samar da wani ɗan jita-jita da ke dauke da polyester / polyether ana kiranta sassan sex. Kasuwanci, waɗannan toshe polymers an san su da sgmmed pus

Aikace-aikacen:

Polyurethane polyurethane shine tsarin layi tare da thermoplalastanci, wanda ke da ingantacciyar juriya, rescience da kayan ƙira fiye da PVC kumfa, tare da ƙarancin ƙima. Yana da kyakkyawan rufi mai kyau, rufi mai ban sha'awa, girgiza juriya da kaddarorin anti-guba. Sabili da haka, ana amfani dashi azaman kunshin, rufi rufin da kayan tace. Motsar polyurethane filastik shine haske, rufin sauti, rufi mai narkewa, kaddarorin sinadarai, aiki mai sauki, mai sauƙi, da ƙarancin ruwa, mai sauƙi, da ƙarancin ruwa, mai sauƙi, da ƙarancin ruwa. Ana amfani da shi azaman abu na tsari don gini, motoci, masana'antar ta jirgin sama, rufin zafi da rufin zafi. Polyurethane mai amfani tsakanin filastik da roba, juriya mai, juriya, juriya, juriya, juriya, mai ƙarfi, elasticity. Ana amfani da shi a cikin masana'antar masana'antu da masana'antar likita. Hakanan za'a iya sanya polyurehane, mayafin, fata na roba, da sauransu.