PU (polyurethane) yog dab tsi?

PU yog lub npe luv ntawm Polyurethane. Nws tsuas yog xav tau kev hloov kho yooj yim kom tau txais qhov sib txawv, elasticity, rigidity thiab lwm yam khoom ntawm lub cev. Tam sim no, nws tau hloov cov iav fiber ntau rwb thaiv tsev cov ntaub ntawv, ntoo, thiab cov khoom siv roj hmab tsoos.

Hauv kev siv cov khau khau, muaj

1. Inner thiab outsole ntawm nkawm khau 2. Adhesive 3. Tawv finishing agent 4. Artificial tawv, hluavtaws tawv txheej

PU yog cov khoom siv hluavtaws, nrog rau kev ntxhib los mos ntawm cov tawv tiag, muaj zog heev thiab ruaj khov, nws txawv ntawm tawv tawv. PU hluavtaws tawv yog siv los hloov PVC tawv tawv, thiab nws cov nqi siab dua PVC tawv tawv. Los ntawm cov qauv tshuaj, nws yog ze rau cov tawv ntaub. Nws tsis siv plasticizers kom ua tiav cov khoom muag, yog li nws yuav tsis ua nyuaj thiab nkig. Nyob rau tib lub sijhawm, nws muaj qhov zoo ntawm cov xim nplua nuj thiab ntau yam qauv, thiab tus nqi pheej yig dua li cov ntaub tawv. Yog li nws tau txais tos los ntawm cov neeg siv khoom.