CPE, Chlorinated polyethylene, tseem hu ua chlorinated polyethylene, yog ua los ntawm cov polyethylene tshwj xeeb (HDPE) los ntawm cov txheej txheem chlorination. Lub yam ntxwv ntawm cov khoom no yog tias cov hydrogen atoms hauv nws cov saw molecular raug hloov los ntawm cov chlorine atoms, nthuav tawm cov qauv tshuaj tshwj xeeb. CPE qhuav zoo li hmoov dawb thiab tsis muaj tshuaj lom thiab muaj kev nyab xeeb. Nws cov mis molecular yog CH2-CHCl-CH2-CH2] n, luv ua CPE lossis CM hauv lus Askiv. Ua cov khoom siv polymer saturated, CPE tsis tsuas yog muaj kev tiv thaiv huab cua zoo thiab tiv thaiv hluav taws xwb, tab sis kuj ua rau muaj kev ruaj khov thermal zoo heev, uas zoo dua li PVC. Tsis tas li ntawd, nws kuj muaj qhov zoo ntawm tus nqi qis thiab kev ua tau zoo heev. Hauv kev solubility, CPE yaj tau hauv cov aromatic hydrocarbons thiab halogenated hydrocarbons, tab sis tsis yaj hauv aliphatic hydrocarbons. Thaum qhov kub tshaj 170 ℃, nws pib lwj thiab tso cov roj hydrogen chloride. Vim nws cov qauv tshuaj ruaj khov, CPE kuj ua rau muaj kev tiv thaiv kev laus zoo heev, tiv thaiv txias, tiv thaiv tshuaj lom neeg, tiv thaiv ozone, thiab rwb thaiv hluav taws xob. Tib lub sijhawm, nws kuj muaj kev sib raug zoo thiab kev ua haujlwm tau zoo, thiab tuaj yeem sib xyaw nrog cov ntaub ntawv xws li PVC, PE, PS, thiab roj hmab, ua kom zoo dua cov khoom siv ntawm cov ntaub ntawv no.
CPE muaj ntau yam kev siv hauv ntau qhov chaw
1. Daim ntawv thov hauv daim ntaub thaiv dej tsis pub dej nkag
CPE txhim kho PVC waterproofing membrane, nrog rau cov yam ntxwv zoo ntawm CPE, tau ua rau nws lub zog tensile ntau dua 80% thiab lub zog tsim kua muag ntau dua 50%. Tib lub sijhawm, nws qhov kev tiv thaiv huab cua, kev tiv thaiv kub tsawg, thiab kev tiv thaiv kev laus kuj tau txhim kho zoo heev, thiab nws tau txais kev nyiam los ntawm cov chaw haujlwm tsim kho (nrog CPE ntxiv tswj ntawm 10% -15%). Tsis tas li ntawd, chloroprene roj hmab CPE waterproofing membrane thiab chloroprene roj hmab CPE styrene butadiene roj hmab waterproofing membrane tau dhau los ua tiam tshiab ntawm cov ntaub ntawv zoo tagnrho waterproofing nrog lawv lub zog siab, siab elasticity, siab extensibility, nrog rau ntau yam zoo xws li corrosion tsis kam, kub siab, txias tsis kam, laus tsis kam, thiab nplaim taws retardancy, thiab muaj kev cia siab dav hauv kev lag luam.
2. Kev tsim cov qhov rooj yas thiab qhov rai
Los ntawm kev sib xyaw CPE nrog PVC, qhov elasticity, toughness, thiab kev ua haujlwm qis kub ntawm cov qhov rooj yas thiab qhov rai tau zoo dua qub, thaum tseem muaj kev tiv thaiv huab cua zoo, tiv thaiv kub, thiab kev ruaj khov tshuaj lom neeg. Hom qhov rooj yas thiab qhov rai no pheej yig, tiv taus corrosion, thiab muaj ntau yam xim. Piv rau cov qhov rooj thiab qhov rai txhuas alloy, nws muaj ntau qhov zoo dua thiab maj mam dhau los ua qhov nyiam tshiab hauv kev ua lag luam.
3. Daim ntawv thov ntawm hlau thiab cable sheath
Qhov ntxiv ntawm CPE tau txhim kho qhov kev ua haujlwm cathodic combustion, kev ua haujlwm tiv thaiv kev laus thiab cov khoom siv lub cev thiab cov khoom siv kho tshuab ntawm cov hlau thiab cov hlua khi. Tib lub sijhawm, cov ntaub ntawv qhwv hlau thiab cov hlua khi ua los ntawm CPE kuj ua tau zoo heev.
4. Kev tsim cov roj hmab hoses thiab cov khau hauv qab
CPE tuaj yeem tsim cov hoses uas tiv taus roj, kua qaub, khoov, ozone, thiab Freon, thiab tsim nyog rau kev tsim cov hydraulic hoses, cov hoses txias, cov hoses roj, thiab ntau ntxiv. Tib lub sijhawm, cov tawv nyuj cuav ua los ntawm CPE ua lub cev tseem ceeb kuj qhia tau tias muaj kev ua tau zoo heev.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-26-2025
