PVC tawv yog cov khoom siv hluavtaws, tseem hu ua tawv tawv lossis tawv tawv. Nws yog ua los ntawm polyvinyl chloride (PVC) resin thiab lwm yam khoom siv los ntawm kev ua cov txheej txheem, thiab muaj cov tawv zoo li tawv thiab zoo li. Txawm li cas los xij, piv nrog cov tawv tiag tiag, PVC tawv yog ib puag ncig zoo, yooj yim los ntxuav, hnav-tiv taus, thiab huab cua-resistant. Yog li ntawd, nws tau siv dav hauv rooj tog zaum, tsheb, khaub ncaws, hnab thiab lwm yam.
Ua ntej tshaj plaws, cov khoom siv raw ntawm PVC tawv feem ntau yog polyvinyl chloride resin, uas yog cov khoom siv yas uas muaj cov yas zoo thiab huab cua tsis kam. Thaum ua PVC tawv, qee cov khoom siv xws li yas, stabilizers, fillers, nrog rau cov xim thiab cov tshuaj pleev xim rau saum npoo yog ntxiv los ua ntau yam thiab kev ua yeeb yam ntawm PVC tawv cov ntaub ntawv los ntawm kev sib tov, calendering, txheej thiab lwm yam txheej txheem.
Qhov thib ob, PVC tawv muaj ntau yam zoo. Ua ntej tshaj plaws, nws cov txheej txheem tsim khoom yog qhov yooj yim thiab tus nqi qis, yog li tus nqi kuj tseem qis, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev siv ntau. Qhov thib ob, PVC tawv muaj qhov hnav tsis kam thiab huab cua tsis kam, tsis yooj yim rau hnub nyoog lossis deform, thiab muaj lub neej ua haujlwm ntev. Thib peb, PVC tawv yog yooj yim los ntxuav, yooj yim los tswj, tsis yooj yim rau stain, thiab siv tau yooj yim dua. Tsis tas li ntawd, PVC tawv kuj muaj qee yam dej tsis zoo, uas tuaj yeem tiv taus dej yaig rau qee qhov, yog li nws kuj tau siv dav hauv qee lub sijhawm uas xav tau cov khoom tsis muaj dej.
Txawm li cas los xij, PVC tawv kuj muaj qee qhov tsis zoo. Ua ntej, piv nrog cov tawv tiag tiag, PVC tawv muaj cov huab cua permeability tsis zoo thiab ua rau tsis xis nyob thaum siv mus ntev. Qhov thib ob, kev tiv thaiv ib puag ncig ntawm PVC tawv kuj tseem muaj teeb meem, vim tias cov khoom tsis zoo yuav raug tso tawm thaum lub sijhawm tsim khoom thiab siv, uas yuav cuam tshuam rau ib puag ncig thiab tib neeg kev noj qab haus huv.
Thib peb, PVC tawv muaj cov yas tsis zoo thiab tsis yooj yim los ua cov qauv peb sab, yog li nws raug txwv rau qee lub sijhawm tshwj xeeb.
Feem ntau, PVC tawv, raws li cov khoom siv hluavtaws, tau siv dav hauv rooj tog, tsheb, khaub ncaws, hnab thiab lwm yam. Nws qhov zoo xws li hnav tsis kam, huab cua tsis kam thiab kev tu yooj yim ua rau nws hloov cov tawv tiag tiag. Txawm li cas los xij, nws qhov tsis zoo xws li huab cua permeability tsis zoo thiab cov lus nug txog kev tiv thaiv ib puag ncig kuj xav kom peb ua tib zoo saib thaum siv nws, thiab xaiv cov khoom tsim nyog kom tau raws li cov kev xav tau sib txawv.