Polyurethanes sawv tawm ntawm cov neeg coob coob uas yog cov khoom siv zoo tshaj plaws rau kev ua ib leeg
1. Polyurethane los tiv thaiv zoo li qub nkawm khau muaj mos, sov, roj-resistant, flex-resistant thiab hnav-resistant soles. Lawv muaj ntau tshaj li 6 lub sij hawm hnav-resistant dua li roj hmab. Lawv tuaj yeem hloov kho ntau yam raws li kev xav tau ntawm kev siv. Ob-xim (ob chav-density) ob-txheej ib leeg, hauv qab yog micro-foamed siab hnav-resistant ua hauj lwm nto, thiab sab hauv ib leeg yog ib qho yooj yim ua npuas ncauj uas nyiam hnav.
2, tsis tshua muaj teeb pom kev zoo, lub ntiajteb txawj nqus tsuas yog 0.3 ~ 0.8, uas yog ntau dua li cov khoom siv ib txwm siv. Nws yog qhov tsim nyog rau cov khau tuab-soled uas yuav tsum muaj kev cuam tshuam thiab tiv thaiv perforation. 15% ntawm lub ntiaj teb no cov khau tiv thaiv kev nyab xeeb (cov khau ua haujlwm) siv polyurethane (PU) ib leeg. .
3, cov pwm yuav tsum tau qis dua, cov khoom tsim tau yooj yim rau kev nqis peev thiab txuag (cov npuas siab me me thaum foaming, tsuas yog 0.14 ~ 0.2Mpa).
4, txoj kev molding yog qhov yooj yim, tuaj yeem tsim cov khau khiab tuaj yeem tsim cov khau, (PU puag thiab ntau cov ntaub nrog muaj zog adhesion) ntau yam thiab hloov pauv hloov pauv tau, tsim nyog rau kev tsim khoom niaj hnub no.