Vim nws qhov dav ntawm cov khoom siv raw thiab cov nqi tsim khoom tsawg, muaj ntau lub tuam txhab tsim khoom hauv lub tebchaws. Txawm li cas los xij, vim qhov kev xav tau nruj ntawm cov khoom siv raw ntawm PVC resin nws tus kheej, qhov zoo ntawm PVC cov kav dej nrog cov sib txawv sib txawv heev. Lub zog tensile ntawm UPVC kav uas tsim los ntawm lub tuam txhab ncav cuag ntau tshaj 50 Mpa, thaum qee qhov tsuas yog li 30 Mpa. Yog li ntawd, kev ua lag luam ntawm cov kav dej PVC tau sib xyaw ua ke zoo heev. Yog li ntawd, cov neeg siv yuav tsum tau them nyiaj tshwj xeeb thaum xaiv: rau cov kav dej dawb PVC feem ntau, cov xim tsis sib xws, thiab cov phab ntsa sab hauv thiab sab nrauv yog tus du. Cov kav dej ntws tawm yog qhov nyuaj, qee qhov muaj xim tsis sib xws, thiab qee qhov muaj cov phab ntsa tshwj xeeb zoo nkauj, thaum cov phab ntsa sab hauv yog ntxhib thiab qee zaum muaj qhov me me; Lub toughness ntawm PVC cov kav dej yog qhov tseem ceeb heev. Thaum peb pom ib lub yeeb nkab uas muaj zog toughness rau hauv ib txoj hlua nqaim, sim ua kom nws 180 degree. Yog tias nws tawg tom qab ib ntus, nws txhais tau hais tias lub toughness tsis zoo thiab brittleness siab; yog tias nws nyuaj rau kev tawg, nws txhais tau hais tias nws muaj zog, thiab kev siv zog ntau dua yuav tsum tau tawg. Cov kav dej uas tsuas yog tawg tau muaj lub zog zoo thiab feem ntau zoo toughness. Cov stubble ntawm cov yeeb nkab PVC tuaj yeem pom (tshwj tsis yog cov stubble ntawm cov saw), qhov zoo dua cov stubble, qhov zoo dua qhov homogenization, lub zog thiab toughness ntawm cov yeeb nkab; Qhov cuam tshuam tsis zoo ntawm PVC cov kav dej kuj tuaj yeem txiav txim siab macroscopically los ntawm txoj kev yooj yim. Koj tuaj yeem xaiv qhov chaw nyob qhov twg hauv chav tsev kub yog ze li 20 degree, pom nws mus rau hauv 200mm ntev yeeb nkab seem (rau 110mm yeeb nkab), thiab slam nws nrog rauj. (Qhov tuab ntawm cov yeeb nkab, qhov ntau dua cov kabmob muaj peev xwm); Yog tias tus neeg siv muaj cov xwm txheej, cov yeeb nkab PVC tuaj yeem ua rau hauv cov duab dumbbell, qhov dav ntawm qhov sib npaug nqaim yog 6 hli, thiab lub zog tensile yog 5 hli / min, thiab lub zog tensile ntau dua 10MPa. Qhov ntev ntev, qhov zoo ntawm cov yeeb nkab.
