Umgangatho ophezulu woLiquid Unsaturated Polyester Resin yeFiberglass
"I-Polyester" yiklasi yeekhompawundi ze-polymer eziqulethe iibhondi ze-ester ezahlulwe kwii-resin ezifana ne-phenolic kunye ne-epoxy resins. Le khompawundi yepolymer iveliswa yi-polycondensation reaction phakathi kwe-dibasic acid kunye ne-alcohol ye-dibasic, kwaye xa le khompawundi ye-polymer iqulethe i-double bond engaxutywanga, ibizwa ngokuba yi-polyester engaxutywanga, kwaye le polyester engaxutywanga inyibilika kwi-monomer enekhono lokuba i-polymerised ( ngokubanzi styrene).
Le polyester engaxutywanga inyibilika kwi-monomer (ngokuqhelekileyo i-styrene) ekwazi ukwenza i-polymerise, kwaye xa iba lulwelo lwe-viscous, ibizwa ngokuba yi-resin ye-polyester engaxutywanga (i-Unsaturated Polyester Resin okanye i-UPR ngokufutshane).
I-resin ye-polyester engaxutywanga ngoko ke ingachazwa njengolwelo olubonakalayo olwenziwe yi-polycondensation ye-dibasic acid kunye ne-alcohol ye-dibasic equlethe i-unsaturated dibasic acid okanye i-alcohol ye-dibasic kwikhompawundi ye-polymer yomgca echithwa kwi-monomer (ngokuqhelekileyo i-styrene). Iintlaka ze-polyester ezingaxutywanga, ezenza i-75 pesenti ye-resin esiyisebenzisa yonke imihla.