Sab saum toj Zoo Kua Unsaturated Polyester Resin rau Fiberglass
"Polyester" yog ib chav kawm ntawm cov khoom siv polymer uas muaj cov ester bonds uas txawv ntawm cov resins xws li phenolic thiab epoxy resins. Qhov no polymer compound yog tsim los ntawm polycondensation cov tshuaj tiv thaiv ntawm dibasic acid thiab dibasic cawv, thiab thaum lub polymer compound muaj ib tug unsaturated ob daim ntawv cog lus, nws yog hu ua unsaturated polyester, thiab no unsaturated polyester yog yaj nyob rau hauv ib tug monomer uas muaj peev xwm ua polymerised ( feem ntau styrene).
Cov polyester uas tsis muaj dej tsis txaus no yog yaj hauv ib qho monomer (feem ntau yog styrene) uas muaj peev xwm ua tau polymerise, thiab thaum nws dhau los ua kua nplaum, nws yog hu ua unsaturated polyester resin (Unsaturated Polyester Resin lossis UPR luv).
Yog li ntawd, unsaturated polyester resin tuaj yeem txhais tau tias yog kua nplaum uas tsim los ntawm polycondensation ntawm dibasic acid nrog dibasic cawv uas muaj unsaturated dibasic acid los yog dibasic cawv nyob rau hauv ib tug linear polymer compound yaj nyob rau hauv ib tug monomer (feem ntau styrene). Unsaturated polyester resins, uas ua rau 75 feem pua ntawm cov resins peb siv txhua hnub.