Yuav ua li cas los txhim kho qhov txias tsis kam ntawm PVC mos zaj duab xis

Raws li cov qauv tseem ceeb ntawm PVC cov khoom muag, cov yas yas muaj kev cuam tshuam zoo rau kev ua haujlwm ntawm PVC cov khoom muag. Yog tias cov khoom muag muag PVC (PVC txias cia qhov rooj curtains) yuav tsum tau siv ntawm qhov kub thiab txias, cov yas uas muaj qhov kub thiab txias yuav tsum tau xaiv. Tam sim no siv los ua cov yas tiv thaiv kab mob khaub thuas feem ntau yog fatty acid dibasic esters, phthalic acid esters ntawm linear alcohols, fatty acid esters ntawm dihydric alcohols, thiab epoxy fatty acid monoesters.

Raws li peb txhua tus paub, txawm tias nws yog PVC yas hoses lossis PVC cov khoom muag xws li PVC qhov rooj curtains, lawv yuav nyuaj rau lub caij ntuj no. Tus naj npawb ntawm cov plasticizers yuav tsum tau nce kom tsim nyog, thiab cov yas-resistant yas kuj tuaj yeem muab ntxiv kom tsim nyog. DOA (dioctyl adipate), DIDA (dodecyl adipate), DOZ (dioctyl azelate), DOS (dioctyl sebacate) yog cov neeg sawv cev ntawm cov yas tiv thaiv kab mob ntau yam. Txij li thaum kev sib raug zoo ntawm cov khoom siv txias-tiv taus nrog PVC tsis zoo heev, qhov tseeb, nws tsuas yog siv tau los ua cov khoom siv yas los txhim kho qhov txias, thiab nws qhov ntau npaum li cas feem ntau yog 5 ~ 20% ntawm lub ntsiab plasticizer.

Txoj kev tshawb no tau taw qhia tias kev sib xyaw ua ke ntawm cov yas tiv taus txias thiab hexamethyl phosphoric triamide tuaj yeem txhim kho qhov txias-resistant toughness thiab qis-kub elongation ntawm PVC mos zaj duab xis. Txawm hais tias hexamethyl phosphoric triamide nws tus kheej tsis yog qhov txias-resistant plasticizer, nws tuaj yeem txo qhov khov ntawm ntau yam plasticizers thiab ua tiav lub hom phiaj ntawm kev ntxiv dag zog rau cov nyhuv txias-resistant ntawm PVC mos zaj duab xis.

Nyob rau tib lub sijhawm, peb kuj yuav tsum xav txog qhov cuam tshuam ntawm kev ua haujlwm kub, qhov kub thiab txias, thiab lwm yam ntawm qhov txias tsis kam ntawm PVC, thiab tom qab ntawd ua ke nrog cov qauv tsim qauv zoo los ua cov kev hloov pauv hauv lub sijhawm thaum kub poob qis heev.