Common kev ruaj ntseg khau ntaub ntawv thiab nta
1. Polyurethane yog cov khoom siv organic polymer tsim los ntawm cov ntaub ntawv A, B, C polyester, feem ntau muab faib ua oily thiab dej. Nws feem ntau yog siv los ua cov khau kev tuav pov hwm kev ua haujlwm, cov khau tawv tawv thiab khau mus ncig. Lub tiby yog tus cwj pwm qis, cov roj mos muag, cov roj ua tau zoo, cov roj zoo, poob siab thiab kev poob siab thiab tsis kam lees.
2. TPU yog cov khoom siv polymer tsim los ntawm cov tshuaj tiv thaiv ntawm diisocyanate thiab macromolecular polyol. Cov yam ntxwv ntawm TPU hauv qab yog zoo heev hnav tsis kam thiab roj tsis kam, thiab lub zog ntawm ib leeg ntawm cov khau kev tuav pov hwm kev ua haujlwm siab, thiab hnav tsis kam yog qhov zoo tshaj plaws. Kev siv cov khau ua haujlwm ntev ntev yuav tsis ua rau hnav thiab tsim kua muag ntau dua.
3. EVA yog cov khoom siv yas uas muaj kev sib xyaw ua ke ntawm ethylene (E) thiab vinyl acetate (VA). Qhov piv ntawm ob cov tshuaj no tuaj yeem hloov kho raws li xav tau. Cov khoom xyaw ntau dua ntawm VA, qhov siab dua qhov pom tseeb. EVA kev tuav pov hwm kev ua haujlwm ib leeg yog tus yam ntxwv ntawm lub cev nyhav, yoog raws, elasticity zoo heev, yooj yim tu, thiab xim zoo heev.
4. Roj hmab feem ntau muab faib ua cov roj hmab ntuj thiab hluavtaws roj hmab, thiab cov roj hmab yog cov khoom siv molecular siab. Kev tuav pov hwm kev ua haujlwm roj hmab ib leeg yog tus cwj pwm los ntawm qhov tshwj xeeb zoo elasticity, tsis yooj yim tawg, acid thiab alkali tsis kam, thiab kuj zoo tiv thaiv kev ua haujlwm. Tsis tas li ntawd, lub shrinkage ntawm cov roj hmab ib leeg thiab cov waterproofness kuj zoo dua.