Cov khoom siv ntawm PVC zaj duab xis rau tshuaj pleev cov tshuaj tua kab hluav taws xob ntim yog tsuas yog ua los ntawm polyvinyl chloride (PVC rau luv). PVC zaj duab xis muaj qhov zoo ntawm kev sib xyaw yooj yim thiab sealing, tus nqi qis, thiab tiv thaiv cov iav ntim khoom, yog li nws tau siv dav hauv kev lag luam kws tshuaj.
Cov yam ntxwv thiab cov ntawv thov ntawm PVC Zaj Duab Xis
Lub thickness ntawm pvc zaj duab xis feem ntau yog nruab nrab ntawm {0}}}}}}}}}}}}.} Kev ua haujlwm ua pab xws li cov yas tshuab, thiab lubricants, thiab lubricants ntxiv rau PVC resin thiab calendered rau hauv zaj duab xis. Cov yeeb yaj kiab no muaj cov yam ntxwv ntawm kev kho hluav taws xob zoo, kev sib txuas zoo, thiab yog qhov tsim nyog xws li cov khoom siv npog sab nraud rau cov tsev ntsuab, cov tsev ntsuab thiab me me thiab nruab nrab-qhov chaw greenhouses.
Qhov tsis zoo thiab lwm cov ntaub ntawv ntawm PVC zaj duab xis
Txawm hais tias PVC zaj duab xis muaj qhov zoo saum toj no, nws kuj muaj qee qhov tsis zoo. Piv txwv li, PVC muaj kev txom nyem thermal stability, tsis muaj pa thaiv cov khoom siv kom dhau kev nqus cov tshuaj kom dhau los ntawm kev nqus cov tshuaj muaj pa vim yog oxidation, thiab ua rau muaj kev siv tshuaj. Tsis tas li ntawd, PVC ua rau hydrochloric acid thaum hlawv, thiab muaj kuab lom dioxins thaum tsis tau hlawv, yog li nws raug txwv los ntawm kev ua kom tsis sib xws hauv qee lub tebchaws.
Yuav kom kov yeej cov kev ua tsis zoo no, cov tuam txhab uas muag khoom yog nrhiav cov khoom siv. Polypropylene (PP) yog cov khoom siv sib tw uas muaj zog. PP muaj qhov zoo ntawm cov khoom muaj siab, cov khoom siv nyuaj hauv kev sib txuas nrog cov khoom siv hlau ntau lawm, uas tuaj yeem kov yeej qee qhov kev ua haujlwm ntawm PVC.