Dab tsi yog qhov txawv ntawm PVC thiab tawv PVC?
** Taw qhia
Polyvinyl chloride (PVC) yog cov khoom siv ntau yam thiab siv dav hauv ntau yam lag luam. Nws yog lub npe hu rau nws yooj, durability, thiab nqi-zoo. Thaum nws los txog rau PVC, muaj ob hom tseem ceeb los xav txog: PVC thiab PVC tawv. Thaum lawv qhia qee qhov sib xws, muaj qhov sib txawv ntawm ob. Hauv tsab xov xwm no, peb yuav qhia txog cov yam ntxwv, cov khoom siv, kev siv, thiab qhov zoo thiab qhov tsis zoo ntawm PVC thiab tawv PVC kom nkag siab zoo dua ntawm lawv qhov sib txawv.
PVC: Lub ntsiab lus
PVC, abbreviated li polyvinyl chloride, yog ib tug polymer tsim los ntawm vinyl chloride monomers. Nws yog cov khoom siv thermoplastic uas tuaj yeem yooj yim molded thiab zoo li tus thaum rhuab. PVC yog lub npe hu rau nws zoo heev tiv taus tshuaj, dej, thiab huab cua. Tsis tas li ntawd, nws muaj cov khoom siv hluav taws xob zoo. PVC yog dav siv hauv kev tsim kho, tsheb, hluav taws xob, kev kho mob, ntim khoom, thiab ntau yam kev lag luam.
Rigid PVC: Lub ntsiab lus
Rigid PVC, tseem hu ua uPVC los yog PVC-U, stands rau unplasticized polyvinyl chloride. Tsis zoo li PVC, tawv PVC tsis hloov pauv thiab tsis muaj qhov deformation loj heev hauv kev ntxhov siab. Qhov tsis muaj plasticizers thaum lub sijhawm tsim khoom ua rau PVC tawv tawv thiab nruj dua li PVC li niaj zaus. Qhov no ua rau nws muaj zog txhua yam muaj zog, qhov ntev stability, thiab tsis kam mus cuam tshuam. Rigid PVC feem ntau yog siv rau hauv cov kav dej, qhov rais thav duab, rooj tog zaum, siding, thiab lwm yam kev siv uas yuav tsum tau muaj zog ntawm cov qauv.
Txheej txheem tsim khoom **
** PVC:Los tsim PVC, vinyl chloride monomers yog polymerized siv tus pib thiab cua sov. Thaum lub sijhawm txheej txheem no, cov yas yas, xws li phthalates, tau ntxiv los ua kom cov PVC hloov tau thiab muag muag. Cov plasticizers no txhim kho cov khoom elasticity, ua rau nws tsim nyog rau kev siv xws li hoses, cables, thiab flooring.
Rigid PVC:Kev tsim cov txheej txheem ntawm PVC nruj yuav tsum tau tshem tawm cov yas yas. Thaum PVC yog polymerized, nws tau ua tiav raws li kev tswj xyuas nrog tsis muaj plasticizers. Qhov no ua rau cov khoom siv tawv tawv, muaj zog ntxiv thiab nruj. Rigid PVC feem ntau yog siv rau hauv cov ntawv thov uas yuav tsum tau muaj kev ncaj ncees thiab kev ruaj ntseg.
Lub cev muaj zog **
** PVC:
- Flexibility: PVC yog cov khoom siv tau yooj yim uas tuaj yeem khoov tau yooj yim thiab molded rau hauv ntau yam duab.
- Softness: PVC kuj yog mos thaum piv rau PVC tawv vim muaj cov yas yas.
- Kev cuam tshuam tsis zoo: PVC muaj qhov cuam tshuam tsis zoo, haum rau cov ntawv thov kev ntxhov siab tsawg.
- Transparency: PVC tuaj yeem ua pob tshab, tso cai rau pom los ntawm kev siv.
- Lub zog tensile: PVC muaj zog tensile qis dua piv rau PVC tawv.
Rigid PVC:
- Rigidity: Rigid PVC yog ib qho nyuaj thiab nruj, ua rau nws haum rau cov qauv siv.
- Kev nruj: Vim tsis muaj cov yas yas, PVC tawv muaj zog dua thiab ruaj khov.
- Impact resistance: Rigid PVC nthuav tawm cov kev cuam tshuam zoo heev, ua rau nws tsim nyog rau kev thov.
- Transparency: Rigid PVC feem ntau opaque, txwv tsis pub siv hauv cov ntawv pob tshab.
- Tensile zog: Rigid PVC muaj zog tensile ntau dua li niaj zaus PVC.
Tshuaj tiv thaiv **
** PVC:
- PVC nthuav tawm zoo tiv thaiv cov tshuaj xws li acids, alkalis, thiab bases.
-Txawm li cas los xij, kev cuam tshuam ntev rau qee yam tshuaj lossis qhov kub thiab txias tuaj yeem ua rau muaj kev puas tsuaj lossis tshuaj tua kab mob ntawm PVC.
Rigid PVC:
- Rigid PVC qhia tau zoo heev tiv thaiv cov tshuaj, ua rau nws haum rau ntau yam kev siv.
- Nws yog tshuaj tiv thaiv ntau dua li PVC ib txwm muaj vim tsis muaj cov yas yas.
Cov ntawv thov **
** PVC:
- Flooring: PVC feem ntau yog siv rau kev siv hauv pem teb vim nws cov kav ntev, yoog raws, thiab kev saib xyuas yooj yim.
- Cables thiab Hlau: PVC cov khoom hluav taws xob thiab kev yooj yim ua rau nws tsim nyog rau kev rwb thaiv tsev hauv cov cables thiab cov xov hlau.
- Hoses thiab Tubing: PVC hoses thiab tubing yog dav siv rau kev thauj mus los.
- Ntim: PVC yog siv nyob rau hauv kev tsim cov blister ntim vim nws pob tshab thiab pheej yig.
- Zam Accessories: PVC yog siv los tsim cov khoom siv zam xws li hnab tes thiab siv.
Rigid PVC:
- Cov kav dej thiab Fittings: Rigid PVC kav thiab fittings yog siv dav hauv cov kav dej thiab cov kav dej.
- Qhov rai Ncej: Rigid PVC muab cov rwb thaiv tsev zoo heev, ua rau nws yog qhov kev xaiv nrov rau lub qhov rais thav duab.
- Siding: Rigid PVC siding muaj durability, huab cua tsis kam, thiab tsis tshua muaj txij nkawm.
- Hluav taws xob Conduits: Rigid PVC conduit tiv thaiv hluav taws xob xaim thiab cables hauv ob qho tib si sab hauv tsev thiab sab nraum zoov.
- Cov rooj tog zaum: Rigid PVC yog siv rau hauv kev tsim cov rooj tog vim nws qhov ruaj khov thiab ua haujlwm ntev.
Qhov zoo thiab qhov tsis zoo **
** Qhov zoo ntawm PVC:
- Flexibility: Qhov hloov pauv ntawm PVC tso cai rau ntau yam hauv kev siv qhov twg khoov lossis molding yog qhov tsim nyog.
- Tus nqi zoo: PVC yog cov khoom siv pheej yig nrog cov nqi tsim khoom tsawg.
- Lub teeb yuag: PVC yog cov khoom siv hnyav, ua kom yooj yim rau kev thauj thiab nruab.
- Muaj dav: PVC tuaj yeem nkag tau thiab pom hauv ntau hom.
Qhov tsis zoo ntawm PVC:
- Kev txhawj xeeb txog ib puag ncig: PVC ntau lawm suav nrog kev siv cov tshuaj chlorine, uas yuav ua rau muaj kev phom sij.
- Degradation: PVC tuaj yeem degrade thaum raug tshav kub, UV hluav taws xob, lossis qee yam tshuaj.
- Softness: Lub softness ntawm PVC tuaj yeem txwv nws qhov tsim nyog rau qee yam kev ntxhov siab lossis kev siv cov qauv.
Rigid PVC Advantages:
- Durability: Rigid PVC yog qhov ruaj khov thiab tuaj yeem tiv taus qhov kev xav tau ib puag ncig.
- Cov qauv kev ncaj ncees: Vim nws cov rigidity, nruj PVC muaj cov qauv zoo heev thiab qhov ruaj khov.
- Tshuaj tiv thaiv: Rigid PVC tiv taus cov tshuaj, ua rau nws haum rau ntau yam kev siv.
- Huab cua tsis kam: Rigid PVC tiv taus huab cua, ua rau nws haum rau kev siv sab nraum zoov.
Rigid PVC Disadvantages:
- Txwv tsis pub muaj: Rigid PVC tsis hloov tau thiab tsis tuaj yeem yooj yim molded lossis khoov.
- Tus nqi siab dua: Rigid PVC feem ntau kim dua li PVC li niaj zaus vim nws cov txheej txheem tsim tshwj xeeb.
- Kev cuam tshuam qis dua: Rigid PVC tuaj yeem pom qhov cuam tshuam qis dua piv rau lwm cov ntaub ntawv hauv qee yam kev siv.
Xaus
Hauv kev xaus, PVC thiab tawv PVC yog ob qhov kev hloov pauv ntawm polyvinyl chloride nrog cov yam ntxwv sib txawv thiab kev siv. PVC yog lub npe hu rau nws yooj yim, softness, thiab dav muaj. Nws yog feem ntau siv hauv pem teb, cables, hoses, thiab ntim khoom. Ntawm qhov tod tes, PVC tawv tawv yog qhov nyuaj, nruj dua, thiab muaj zog ua kom muaj zog thiab ruaj khov. Nws yog dav siv nyob rau hauv cov kav dej, qhov rais thav duab, rooj tog zaum, thiab ntau yam kev siv cov qauv. Kev nkag siab txog qhov sib txawv ntawm PVC thiab tawv PVC tuaj yeem pab xaiv cov khoom tsim nyog rau cov kev xav tau tshwj xeeb, suav nrog cov kev xav tau xws li kev hloov pauv, lub zog, nqi, thiab kev txhawj xeeb ntawm ib puag ncig.
