Qhov Tseem Ceeb - UPVC vs CPVC
PVC lossis polyvinylchloride yog cov khoom siv hluavtaws feem ntau ua los ntawm kev ncua lossis emulsion polymerization ntawm acetylene thiab anhydrous hydrochloride acid. Nws yog ib qho ntawm cov khoom qub tshaj plaws thiab feem ntau cov yas. Thaum lub sij hawm nws cov txheej txheem ntau lawm, ntau yam tshuaj xws li cuam tshuam kev hloov pauv, plasticizers, fillers, reinforcing agents, lubricants, thiab stabilizers tuaj yeem muab ntxiv kom nthuav dav siv PVC. PVC tej zaum yuav muaj nyob rau hauv cov ntaub ntawv ntawm saj zawg zog nyias zaj duab xis, rigid plastics, foams los yog elastomers. Nyob ntawm qhov sib ntxiv ntawm qee cov khoom xyaw, ntau hom PVCs raug tsim; Xws li, PPVC (plasticized PVC), PVCA (polyvinyl chloride acetate), UPVC thiab CPVC. Hauv tsab xov xwm no, qhov sib txawv ntawm UPVC thiab CPVC yog qhov tseem ceeb. UPVC stands rau unplasticized PVC, whereas CPVC stands rau tom qab-chlorinated PVC. Qhov sib txawv tseem ceeb ntawm UPVC thiab CPVC yog tias UPVC yog tsim tsis muaj cov yas ntxiv, qhov CPVC yog tsim los ntawm cov tshuaj chlorination tom qab PVC los txhim kho cov tshuaj chlorine hauv cov polymer.
UPVC yog dab tsi?
UPVC yog hom PVC tsis muaj cov yas yas. UPVC tuaj yeem tsim los ntawm daim ntawv teev sijhawm, extrusion, thiab txhaj tshuaj molding. UPVC paub zoo rau nws qhov nqus dej tsawg. Tsis tas li ntawd, nws muaj kev tiv thaiv zoo rau alkalis, roj, acids thiab inorganic tshuaj. Txawm li cas los xij, nws tsis sib xws nrog ketones, chlorinated thiab aromatic hydrocarbons, aromatic ethers, esters, amines. UPVC yog dav siv nyob rau hauv ntau daim ntawv thov xws li hluav taws xob rwb thaiv tsev daim ntaub ntawv, kav, nplooj ntawv thiab zaj duab xis, qhov rais thav duab, translucent glazing, gaskets, foob thav ntawv, ntim, hloov tau cov khoom ua si, phau ntawv, fwj, khoom siv hauv chaw ua haujlwm, thiab lwm yam. UPVC muaj lub zog tensils siab thiab muaj zog muaj zog.
Daim duab 01: UPVC Pipe
Ntxiv mus, nws tuaj yeem tiv taus qhov kub siab rau lub sijhawm ntev txawm tias nyob hauv qhov kub thiab txias. Txawm li cas los xij, nws qhov ntsuas kub qis qis yog txwv. UPVC yog lub teeb yuag thiab yooj yim rau kev ua haujlwm thaum lub sijhawm teeb tsa. Cov plasticizers ntawm UPVC tuaj yeem leached tawm los ntawm qee cov hydrocarbons uas ua rau lub zog degradation.
CPVC yog dab tsi?
CPVC yog tsim los ntawm los nag cov ntsiab lus chlorine los ntawm 56% mus rau ib ncig ntawm 66% txawm tias cov txheej txheem tom qab chlorination. Chlorination tshwm sim ntawm –CH2 pawg uas thaum kawg hloov cov PVC rau hauv ib copolymer ntawm vinyl chloride nrog 1, 2-dichloroethylene. Cov txheej txheem chlorination txo cov attraction rog ntawm polymer chains thiab ua rau PVC ntau amorphous. Cov yam tseem ceeb no yuav ua rau CPVC nce nws cov iav hloov pauv kub kwv yees li 50% dua li PVC thiab tseem txhim kho cov yaj viscosity thaum ua.
Daim duab 02: CPVC Pipes
Qhov kev pabcuam siab ntawm CPVC yog li 100 ° C, qhov PVC yog li 60 ° C. Thaum piv rau PVC, CPVC tsis muaj tshuaj lom thiab muaj cov khoom siv hluav taws xob zoo heev. Tsis tas li ntawd, CPVC muaj kev hloov pauv ntau dua thiab muaj zog dua PVC. CPVC tseem paub txog nws cov khoom tiv thaiv hluav taws thiab yuav tsis hlawv yam tsis muaj nplaim taws. Cov khoom siv hnyav no yooj yim rau nruab. Cov kav dej ntawm CPVC yog siv rau cov kab dej kub, kev kho hlau, kev lag luam zaub mov thiab dej haus, thiab kev kho dej khib nyiab. CPVC kuj tseem tiv taus cov kuab tshuaj organic xws li chlorinated hydrocarbons, esters, ketones, thiab lwm yam. Txawm li cas los xij, CPVC tej zaum yuav tsis ntseeg tau los siv nrog qee cov roj thiab roj nyob rau hauv kev ntxhov siab.
Qhov txawv ntawm UPVC thiab CPVC yog dab tsi?
UPVC vs CPVC |
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| UPVC tsis muaj plasticizers. | CPVC yog tsim los ntawm cov tshuaj chlorination tom qab, yog li cov ntsiab lus chlorine ntau dua UPVC. |
| Kev kub ntxhov siab | |
| High kub stability hauv UPVC yog qis. | High kub stability hauv CPVC yog siab. |
| Compatibility nrog Chlorinated thiab Aromatic Hydrocarbons | |
| UPVC tsis sib haum nrog chlorinated thiab muaj ntxhiab hydrocarbons | CPVC yog sib xws nrog chlorinated thiab aromatic hydrocarbons |
| Toxicity | |
| UPVC tuaj yeem ua rau muaj tshuaj lom tshwj xeeb tshaj yog thaum cov plasticizers leached | CPVC tsis muaj tshuaj lom |
| Density | |
| Qhov ntom ntawm CPVC siab dua li ntawm UPVC. | Qhov ntom ntawm UPVC qis dua li ntawm CPVC. |
| Melt Viscosity hauv kev ua | |
| UPVC muaj cov viscosity tsawg thaum ua haujlwm. | CPVC muaj cov viscosity ntau dua hauv kev ua haujlwm. |
| Kev Pabcuam Siab Tshaj Plaws | |
| Around 65 °C | Around 100 °C |
| Khov Hloov Kub Kub | |
| 80-84°C | 99-123 °C |
| Flammability | |
| Lesser piv rau CPVC | siab dua piv rau UPVC |
Summary – UPVC vs CPVC
UPVC thiab CPVC yog ob hom PVC uas tau siv dav hauv ntau daim ntawv thov vim lawv cov khoom sib txawv. UPVC tsis muaj plasticizers, yog li ua rau muaj zog dua thiab muaj kev cuam tshuam resistant. CPVC yog tsim los ntawm post-chlorination los ua kom cov ntsiab lus chlorine. Yog li nws muaj zog dua thiab tiv taus ntau yam tshuaj. Tsis tas li ntawd, qhov kev pabcuam kub yog siab dua hauv CPVC dua li UPVC vim qhov hloov pauv iav ntau dua thiab melting viscosity ntawm CPVC.
Download the PDF Version of UPVC vs CPVC
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm UPVC thiab CPVC
