EVA Insole Moulding Tshuab Thiab EVA Sole yog ob yam
Dec 25, 2021
EVA ib leeg yog hais txog ib leeg ua los ntawm cov khoom siv EVA. EVA ib leeg muaj kev ua haujlwm siab, siab tsis kam, siab tawv, zoo shockproof thiab cushioning kev ua tau zoo, zoo heev tshav kub rwb thaiv tsev, thermal rwb thaiv tsev, txias tsis kam thiab tsis kub kub kev ua tau zoo, muaj peev xwm tiv taus txias txias thiab raug, kaw pores, zoo suab rwb thaiv tsev nyhuv, kaw pore. qauv, tsis muaj dej nqus, noo- pov thawj thiab dej tsis kam, tsis kam tiv thaiv corrosion ntawm seawater, roj, acid, alkali thiab lwm yam tshuaj, tshuaj tua kab mob, tsis yog - tshuaj lom, tsis qab thiab muaj kuab lom- dawb.
EVA khau ib leeg yog tus yam ntxwv zoo softness, roj hmab zoo li elasticity, zoo saj zawg zog, pob tshab thiab nto gloss ntawm 0 degrees Celsius, zoo tshuaj stability, zoo aging kuj thiab ozone kuj, thiab tsis muaj toxicity. Zoo sib xyaw nrog muab tub lim, zoo xim thiab molding txheej txheem.
Nws yog ze ze rau vinyl acetate cov ntsiab lus, molecular hnyav thiab yaj Performance index. Thaum lub melt index (MI) yog tas li thiab cov ntsiab lus ntawm vinyl acetate (VA) yog nce, nws elasticity, softness, solubility thiab pob tshab kuj zoo tuaj. Thaum cov ntsiab lus VA raug txo qis, qhov kev ua tau zoo yog ze rau polyethylene, qhov rigidity tau nce, thiab kev hnav tsis kam thiab hluav taws xob rwb thaiv tsev tau txhim kho.
Thaum VA cov ntsiab lus tas li, qhov ntsuas qhov ntsuas tau nce, qhov taw tes softening txo, kev ua haujlwm thiab qhov ci ntsa iab zoo dua, tab sis lub zog txo. Txwv tsis pub, nrog kev txo qis ntawm MI, qhov hnyav molecular nce, thiab qhov cuam tshuam kev ua haujlwm thiab ib puag ncig kev ntxhov siab tawg tuaj yeem txhim kho. Lub polarity ntawm acetate nce elasticity thiab viscosity, txo cov crystallinity thiab hluav taws xob zog, thiab soluble nyob rau hauv hydrocarbon solvents thiab roj.