Cov tshuaj polyester tsis muaj roj yog hom thermosetting resin uas siv ntau tshaj plaws, feem ntau yog cov tshuaj polymer linear nrog cov ester bonds thiab cov unsaturated double bonds uas tsim los ntawm kev sib xyaw ntawm unsaturated dicarboxylic acid nrog diols lossis saturated dicarboxylic acid nrog unsaturated diols. Feem ntau, cov tshuaj polyester condensation reaction yog ua tiav ntawm 190-220 ℃ kom txog thaum tus nqi acid xav tau (lossis viscosity). Tom qab cov tshuaj polyester condensation reaction tiav lawm, ntxiv qee qhov vinyl monomer thaum kub kom npaj cov kua viscous. Cov tshuaj polymer no hu ua unsaturated polyester resin.
Cov roj polyester uas tsis tau muab sib xyaw ua ke tau ua tiav zoo hauv ntau qhov chaw lag luam, xws li kev tsim cov cua ntsawj thiab cov yachts hauv kev ua si hauv dej. Cov polymer no yeej ib txwm yog lub hauv paus ntawm kev hloov pauv tiag tiag hauv kev lag luam tsim nkoj, vim nws tuaj yeem muab kev ua tau zoo heev thiab kev ywj pheej siab heev hauv kev siv.
Cov polyester resins tsis muaj roj kuj tseem siv ntau hauv kev lag luam tsheb vim lawv qhov kev tsim qauv yooj yim, lub teeb yuag, tus nqi qis, thiab lub zog tsis tshua muaj zog.
Cov khoom siv no kuj siv rau hauv cov tsev, tshwj xeeb tshaj yog hauv kev tsim cov khoom siv ua noj, qhov cub, cov vuas ru tsev, cov khoom siv hauv chav dej, nrog rau cov kav dej thiab cov thoob dej.
Cov ntawv thov ntawm cov tshuaj polyester tsis muaj roj ntau yam. Cov tshuaj polyester qhov tseeb sawv cev rau ib qho ntawm cov khoom siv zoo tshaj plaws
cov tshuaj sib xyaw siv rau hauv ntau yam lag luam. Qhov tseem ceeb tshaj plaws, nrog rau cov uas tau piav qhia saum toj no, yog:
* Cov ntaub ntawv sib xyaw ua ke
* Cov xim ntoo
* Cov vaj huam sib luag laminated tiaj tus, cov vaj huam sib luag corrugated, cov vaj huam sib luag ribbed
* Gel tsho rau nkoj, tsheb thiab chav dej khoom siv
* Cov xim nplaum, cov khoom sau, stucco, putties thiab cov tshuaj anchorings
* Cov ntaub ntawv sib xyaw ua ke uas tua tau tus kheej
* Quartz, marble thiab cov cement cuav
