Yuav ua li cas kom txhim kho cov nqaij txias tsis kam ntawm pvc mos zaj duab xis

Raws li cov khoom siv tseem ceeb ntawm PVC cov khoom muag muag, yas yog muaj txiaj ntsig zoo ntawm kev ua haujlwm ntawm PVC cov khoom muag muag. Yog tias PVC cov khoom muag (PVC txias cia cov rooj kab hlau rhuav) yuav tsum tau siv ntawm cov kub kub, cov plhaw nrog cov kev kub kub ua kom zoo. Tam sim no siv raws li txias-resistant cov tshuab raj yog feem ntau fattô acid Dibasic esters, fattal acid esters, fatty acid onders, thiab epoxy fattdric cawv, thiab epoxy fatty acid monoesters.

Raws li peb txhua tus paub, txawm tias nws yog PVC cov khoom muag lossis cov khoom muag muag xws li 80 qhov rooj ntaub, lawv yuav ua nyuaj rau lub caij ntuj no. Tus naj npawb ntawm cov planinizers yuav tsum tau nce ntxiv, thiab cov khoom lag luam txias tuaj yeem tseem yuav txuas ntxiv. DOA (Dioctyl supipate), doias (dodecyl supipate), dodectyl azelate), dos (dosoctyl Sebacate) yog cov neeg tuaj yeem tiv thaiv cov cua txias ntau yam. Txij li thaum lub cev ntawm dav dav txias-resistant yasizers nrog pvc tsis yog siv los ua ib qho kev ua kom txias, thiab nws cov tshuaj ntau dua 5 ~ 20% ntawm lub tshuab yas loj.

Txoj kev tshawb no taw qhia tias kev sib xyaw ua ke ntawm cov khaub thuas-resistant thiab hexamethyl phosphoric nyuaj thiab tsawg elongation ntawm pvc mos zaj duab xis. Txawm hais tias hexamethyl phosphoric triaphoric triaphoric triah tsis yog txias txias-resistant searing

Nyob rau tib lub sijhawm, peb kuj tseem yuav tsum xav txog qhov cuam tshuam ntawm kev ua kom zoo nkauj ntawm pvc, thiab tom qab ntawd tsim kev hloov kho txias rau lub sijhawm thaum lub sijhawm ntsuas kub.