Elastomers Polyurethane waxay ka tirsan yihiin polymers-ka, taas oo ah, macromolecules polyurethane waxay ka kooban yihiin "qaybo jilicsan" iyo "qaybo adag" waxayna sameeyaan qaab-dhismeedka kala-baxa yar-yar, kaas oo qaybaha adag (laga bilaabo isocyanates iyo silsiladaha silsiladaha) lagu kala firdhiyo jilicsanaanta. gobolka wajiga qaybta (laga bilaabo polyols oligomer) si uu u ciyaaro doorka dhibcaha isku xidhka jirka.Sidaa darteed, marka la barbardhigo caagadaha kale ee synthetic (elastomers), polyurethane elastomers waxay leeyihiin xoog wanaagsan waxayna xirtaan caabbinta, Kordhinta sare ayaa weli la ilaalin karaa marka ay adag tahay.
Qalabka poliurethane ee Elastic, oo loo yaqaan "CASE" dibadda, inta badan waxaa ka mid ah alaabta elastomer ee polyurethane dhaqameed, alaabta laamiga sida dariiqyada caagga ah ee polyurethane, daboolka biyuhu ee aan biyaha lahayn, dhejisyada, dhejiska, dhejisyada dheriga, iwm, xisaabinta qiyaastii 40% wadarta tirada guud. ee alaabta polyurethane.Badeecooyinka la daaweeyay ee alaabta CASE (alaabada biyaha ku salaysan iyo dareeraha ka dib marka la saaro biyaha iyo dareeraha) waa walxo poliurethane ah oo aan xumbo lahayn.Xabagta maqaarka synthetic ee PU, dahaarrada qaarkood iyo koollada ayaa ah wax-soo-saarka dareeraha ama alaabada biyaha ku salaysan, kuwaas oo sidoo kale loo tixgelin karo inay yihiin elastomer poliurethane ah dareen ballaadhan.Dareen cidhiidhi ah, elastomers poliurethane waxay tixraacaan elastomer polyurethane castable (CPU), elastomer polyurethane thermoplastic (TPU) iyo elastomer polyurethane isku dhafan (MPU), oo u dhiganta 10% ama wax yar ka yar wadarta guud ee polyurethane.CPU iyo TPU waa muraayadaha polyurethane ee ugu muhiimsan, kala duwanaanshooduna waxay ku jiraan habka wax soo saarka iyo silsiladaha fidiyeyaasha.Noocan ah elastomer-dhaqameedka poliurethane, oo sidoo kale loo yaqaan "caagga polyurethane", ayaa iska leh nooc gaar ah oo caag synthetic ah.Waxqabadka sare ee elastomer polyurethane waa sheyga ugu fiican ee u adkaysta dhammaan walxaha polymer synthetic, oo loo yaqaan "boqorka caabbinta xirashada", waxaana si ballaaran loo isticmaalaa meelo badan, codsiyada cusubna weli way sii kordhayaan.
elastomer Polyurethane waxa loo isticmaali karaa in lagu beddelo biraha, balaastigga iyo caagga caadiga ah ee meelaha qaarkood.
Marka la barbardhigo walxaha birta ah, elastomer polyurethane wuxuu leeyahay faa'iidooyinka miisaanka fudud, qaylada hoose, caabbinta xirashada, kharashka waxsoosaarka hooseeya iyo caabbinta daxalka aashitada.Marka la barbardhigo balaastikada, waxay leedahay faa'iidooyinka adkaanta sare iyo caabbinta xirashada sare.Marka la barbardhigo caagga caadiga ah, elastomer polyurethane wuxuu leeyahay faa'iidooyinka xirashada caabbinta, jarista caabbinta, caabbinta jeexjeexa, awoodda wax-soo-saarka sare, caabbinta ozone, iwm.
Waqtiga boostada: Febraayo-14-2023