I-polyester ephezulu ye-polyendurated resin ye-fiberglass
I- "Polyester" yisigaba samakhompiyutha e-polymer aqukethe amabhondi e-Eder ahlukaniswe nama-resin afana nama-phenolic ne-epoxy resins. Le nhlanganisela ye-polymer ikhiqizwa ukusabela kwe-polycondenation phakathi kwe-dibasic acid kanye ne-dibasic acid, futhi lapho leli phoyisa le-polymer liqukethe ibhodi eliphindwe kabili eliphindwe kabili, futhi leli poyerter elingafakwanga lincibilike, futhi leli poyerter elingafakwanga lichithwa e-polymerised (ngokuvamile i-styrene).
Le pollerter engalawulwa ichithwa ku-monomer (imvamisa i-styrene) enamandla ku-polymerise, futhi lapho iba uketshezi olubukekayo, ibizwa ngokuthi i-polyeture resin engafakwanga (i-polyerester resin noma i-UPR yamafuphi).
Ngakho-ke i-polyerature resin engafakwanga ingachazwa njengoketshezi oluvinjelwe okwenziwe yi-polycondenswation ye-dibasic acid enotshwala obungenasici acibic acibasic noma i-styrene). Ama-polyester ahlala e-polyerester, enza amaphesenti angama-75 ama-resins esiwasebenzisa nsuku zonke.