PVC Membrane Structure

Yog li dab tsi yog PVC? PVC, luv luv rau Polyvinyl chloride, feem ntau yog tsim los ntawm polyvinyl chloride, nrog rau lwm cov khoom ntxiv los txhim kho nws cov cua sov, tawv, thiab ductility. Hom zaj duab xis saum npoo no muaj txheej txheej saum toj kawg nkaus ntawm cov xim, ib txheej nruab nrab ntawm polyvinyl chloride ua cov khoom tseem ceeb, thiab cov txheej hauv qab ntawm cov nplaum. Nws yog ib qho khoom siv nrov thiab siv dav thoob ntiaj teb, qeb thib ob hauv kev siv thoob ntiaj teb ntawm txhua yam khoom siv hluavtaws. Kev txheeb xyuas qhia tau tias nyob rau xyoo 1995 ib leeg, PVC ntau lawm hauv Tebchaws Europe tau txog li tsib lab tons, thaum noj yog tsib lab peb puas txhiab tons. Nyob rau hauv lub teb chaws Yelemees, qhov nruab nrab ntau lawm thiab noj ntawm PVC yog ib lab plaub puas txhiab tons. PVC tau tsim thiab siv thoob ntiaj teb ntawm kev loj hlob ntawm 4%. Kev loj hlob ntawm PVC nyob rau sab hnub tuaj Asia yog qhov tseem ceeb, ua tsaug rau qhov kev xav tau ceev rau kev tsim kho vaj tse hauv cov tebchaws no. Ntawm cov ntaub ntawv muaj peev xwm ua tau peb - qhov ntev ntawm zaj duab xis, PVC yog qhov tsim nyog tshaj plaws.

PVC tuaj yeem muab faib ua PVC hloov tau yooj yim thiab nruj PVC. Rigid PVC nyiaj rau kwv yees li ob - feem peb ntawm kev ua lag luam, thaum hloov pauv PVC nyiaj rau ib - thib peb. Saj zawg zog PVC feem ntau yog siv rau hauv pem teb, qab nthab, thiab saum npoo ntawm tawv. Txawm li cas los xij, vim tias nws muaj cov yas yas (uas yog qhov sib txawv ntawm qhov hloov tau yooj yim thiab nruj PVC), nws yog qhov ua rau nkig thiab nyuaj rau khaws cia, yog li txwv nws cov ntawv thov. Rigid PVC tsis muaj cov yas yas, yog li nws muaj qhov hloov tau zoo, yooj yim rau pwm, tsis nkig, tsis yog - lom thiab muaj kuab paug- dawb, thiab muaj lub neej txee ntev, yog li muaj kev txhim kho zoo thiab daim ntawv thov nqi. Hauv qab no, nws yuav raug xa mus rau PVC. PVC yog qhov tseem ceeb ntawm lub tshuab nqus tsev-tsim zaj duab xis siv rau lub ntim ntim ntawm ntau lub vaj huam sib luag, yog li nws tseem hu ua cov yeeb yaj kiab zoo nkauj lossis cov nplaum nplaum, thiab siv rau ntau yam lag luam xws li cov khoom siv hauv tsev, ntim khoom, thiab tshuaj. Kev lag luam khoom siv hauv tsev suav rau qhov loj tshaj plaws, ntawm 60%, ua raws li kev lag luam ntim khoom, thiab ob peb lwm cov ntawv me me - nplai.