Ua npuas ncauj khau khiab yog dab tsi?

Foam soles yog cov khoom ntxeem tau.
Ib qho khoom uas muaj qee tus lej ntawm qhov pores yog hu ua cov khoom ntxeem tau, uas yog cov khoom siv nrog cov qauv sib txuas los yog kaw qhov pores, thiab cov ciam teb lossis qhov chaw ntawm lub qhov hws yog tsim los ntawm cov ncej lossis cov phaj. Cov qauv pore raug tsim los ntawm ntau cov pores polygonal sib sau ua ke ntawm lub dav hlau, feem ntau hu ua "ua npuas ncauj" khoom. Piv nrog rau cov ntaub ntawv xov xwm tas mus li, cov ntaub ntawv ntxeem tau feem ntau muaj cov txheeb ze tsis tshua muaj zog, muaj zog tshwj xeeb, siab tshwj xeeb thaj chaw, lub teeb yuag, Nws muaj qhov zoo ntawm lub suab rwb thaiv tsev, rwb thaiv tsev kub thiab zoo permeability. Tshwj xeeb, cov ntaub ntawv ntxeem tau feem ntau muaj rau cov yam ntxwv hauv qab no:
Daim ntawv thov ntawm cov khoom ntxeem tau tuaj yeem txhim kho cov khoom siv kho tshuab xws li lub zog thiab qhov tawv nqaij, thaum txo qhov ceev. Lwm qhov kev hloov pauv hauv cov khoom siv ntawm cov khoom ntxeem tau yog kev txhim kho ntawm qhov cuam tshuam toughness. Daim ntawv thov hauv kev lag luam tsheb tuaj yeem txo qhov kev puas tsuaj tsim los ntawm kev sib tsoo tsheb rau cov neeg caij tsheb.
Ua npuas ncauj khau khiab yog dab tsi?
Cov khoom tseem ceeb ntawm cov khau khiab yog ethylene-vinyl acetate copolymer.
Ethylene-vinyl acetate copolymer, hu ua EVA hauv lus Askiv, EVA cov khoom yog tsim los ntawm copolymerization ntawm ethylene (E) thiab vinyl acetate (VA). Kev ruaj ntseg kuj zoo heev, cov qauv kaw ntawm tes, cov khoom siv eva muaj kev tiv thaiv kev laus, tsis muaj ntxhiab tsw, tsis muaj tshuaj lom, mos poob siab thiab biodegradable, yog li nws muaj ntau yam kev siv.