Lub npe "+Polyester Polyamide" tuaj yeem sau ua ob qhov kev tshawb fawb sib txawv, ob qhov tag nrho muaj kev pab los ntawm cov khoom siv polymer zoo. Thaum pib, nws tuaj yeem sau rau ib qho chav koom sib tw los yog ib qho chav sib xyaw uas muaj ceev cov khoom siv ester (-CO-O-) thiab amide (-CO-NH-) nyob hauv qhov neej xwb. Cov khoom no tau tsim los mus rau ib qho kev tshawb fawb tshiab uas muaj kev pab los ntawm ob tog polymer. Cov ester tuaj yeem pab ntau dua rau kev tso zog hauv dej, kev tso zog hauv sab saum toj thiab kev tso zog hauv dej tsawg dua li polyamides tshaiv, thaum cov amide tuaj yeem tshuav siab zog siab, yooj yim thiab kev tso zog hauv kub. Cov chav koom no feem ntau tsim rau kev siv tshwj xeeb, tshwj xeeb rau thaum qhov yooj yim ntawm polyamide tshaiv (xws li kev dub dej ntau) yog ib qhov teeb meem. Thaum kawg, thiab feem ntau dua nyob hauv qhov chaw ua haujlwm, "Polyester Polyamide" tuaj yeem sau rau ib qho chav sib xyaw ntawm polyester (xws li PBT, PET) thiab polyamide (xws li PA6, PA66). Kev tsim ib qho chav sib xyaw zoo yog ib qhov nyuaj vim tias cov polymer no tsis tuaj yeem sib xyaw nrog lwm, uas tuaj yeem tshwm sim kev sib tshuam thiab kev tso zog tsis zoo. Yog li, cov khoom siv kom muaj kev sib thaj yog yooj yim los tsim ib qho chav sib xyaw zoo thiab muaj kev sib thaj zoo. Lub xav tau ntawm kev sib xyaw no feem ntau yog los kom khoom siv raw tsawg dua, pab ntau dua rau kev tso zog hauv khoom siv kim, lossis kho qhov kev tshawb fawb rau ib qho kev siv tshwj xeeb uas tsis muaj ib chav polymer twg tuaj yeem pab tau zoo. Nyob hauv ob qhov kev tshawb fawb no, cov khoom no yog cov khoom siv advanced feem ntau pom nyob hauv cov cheeb tsam nyuaj xws li cov khoom siv hauv roj hmab, cov chav tshuaj, thiab cov khoom siv tshwj xeeb.