Unsaturated polyester resin ndi utomoni womwe umagwiritsidwa ntchito kwambiri ndi thermosetting resin, womwe nthawi zambiri umakhala wopangidwa ndi polima wokhala ndi zomangira za ester ndi zomangira zapawiri zomwe zimapangidwa ndi condensation wa unsaturated dicarboxylic acid wokhala ndi diol kapena saturated dicarboxylic acid wokhala ndi diol unsaturated. Kawirikawiri, polyester condensation reaction ikuchitika pa 190-220 ℃ mpaka kuyembekezera mtengo wa asidi (kapena mamasukidwe akayendedwe) wafika. Pambuyo pomaliza poliyesita condensation reaction, kuchuluka kwa vinilu monoma anawonjezera pamene otentha kukonzekera viscous madzi. Njira ya polima iyi imatchedwa unsaturated polyester resin.
Unsaturated polyester resin wachita bwino kwambiri m'mafakitale ambiri, monga kupanga mafunde osambira ndi ma yacht pamasewera am'madzi. Polima iyi nthawi zonse yakhala pachimake pakusintha kwenikweni kwamakampani opanga zombo, chifukwa imatha kupereka magwiridwe antchito abwino kwambiri komanso kusinthasintha kwakukulu pakugwiritsa ntchito.
Unsaturated polyester resins amagwiritsidwanso ntchito kwambiri m'makampani amagalimoto chifukwa cha kusinthasintha kwake, kulemera kwake, kutsika mtengo, komanso kutsika kwamphamvu kwamakina.
Izi zimagwiritsidwanso ntchito m'nyumba, makamaka popanga zophikira, masitovu, matailosi a padenga, zipangizo zosambira, komanso mapaipi ndi matanki amadzi.
Ntchito za unsaturated polyester resin ndizosiyanasiyana. Ma resin a polyester amayimira chimodzi mwamtheradi
mankhwala omwe amagwiritsidwa ntchito m'mafakitale osiyanasiyana. Zofunikira kwambiri, komanso zomwe zafotokozedwa pamwambapa, ndi:
* Zida zophatikizika
* Zojambula zamatabwa
* Makapu a laminated athyathyathya, mapanelo a malata, mapanelo okhala ndi nthiti
* Chovala cha gel cha mabwato, magalimoto ndi mabafa
* Zopaka utoto, zojambulira, stucco, putty ndi nangula wamankhwala
* Zida zophatikizika zozimitsa zokha
* Quartz, marble ndi simenti yopangira
