Hauv peb lub neej, CPE thiab PVC tau siv ntau thiab ntau dua. Chlorinated polyethylene yog cov khoom siv saturated polymer nrog cov hmoov dawb zoo li, tsis muaj tshuaj lom thiab tsis qab, thiab muaj huab cua tsis zoo, ozone kuj, tshuaj tiv thaiv thiab kev laus. Kev ua tau zoo, nrog cov roj ua haujlwm zoo, nplaim taws retardancy thiab xim xim. Zoo toughness (tseem saj zawg zog ntawm -30 ° C), zoo compatibility nrog rau lwm cov ntaub ntawv polymer, thiab siab decomposition kub. Chlorinated polyethylene yog cov khoom siv polymer ua los ntawm high-density polyethylene (HDPE) los ntawm cov tshuaj chlorination hloov pauv. Raws li cov qauv sib txawv thiab kev siv, chlorinated polyethylene tuaj yeem muab faib ua ob pawg: resin-type chlorinated polyethylene (CPE) thiab elastomer-type chlorinated polyethylene (CM). Ntxiv rau kev siv ib leeg, cov khoom siv thermoplastic kuj tuaj yeem sib xyaw nrog polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS), ABS thiab txawm tias polyurethane (PU). Hauv kev lag luam roj hmab, CPE tuaj yeem siv los ua cov roj hmab tshwj xeeb zoo, thiab tseem tuaj yeem siv nrog ethylene-propylene roj hmab (EPR), butyl roj hmab (IIR), nitrile roj hmab (NBR), chlorosulfonated polyethylene ( CSM), thiab lwm yam khoom siv roj hmab.
Nyob rau xyoo 1960, German Hoechst tuam txhab thawj zaug ua tiav thiab paub txog kev tsim khoom lag luam. kuv lub tebchaws tau pib tsim cov tshuaj chlorinated polyethylene thaum xyoo 1970s. Lub "Aqueous Phase Suspension Synthesis of CPE Technology" yog thawj zaug ua tiav los ntawm Anhui Chemical Industry Research Institute, thiab cov khoom siv ntau lawm ntawm 500-1000t / a nrog cov nplai sib txawv tau tsim hauv Wuhu, Anhui, Taicang, Jiangsu, thiab Weifang, Shandong .
Cov roj tsis kam ntawm CPE yog qhov nruab nrab, ntawm cov uas tsis muaj zog rau ASTM No. 1 roj thiab ASTM No. 2 roj zoo heev, uas yog sib npaug rau NBR; qhov tsis kam mus rau ASTM No. 3 roj yog zoo heev, zoo dua li CR, uas yog sib npaug rau CSM.
CPE muaj cov tshuaj chlorine, uas muaj cov nplaim hluav taws zoo heev thiab muaj cov yam ntxwv ntawm kev kub hnyiab thiab tiv thaiv dej. Nws tuaj yeem ua ke nrog antimony-raws li nplaim hluav taws xob, chlorinated paraffin, thiab Al (OH) 3 hauv qhov sib piv kom tau txais cov khoom siv hluav taws xob nrog cov nplaim hluav taws zoo heev thiab cov nqi qis.
CPE tsis muaj tshuaj lom, tsis muaj hlau hnyav thiab PAHS, thiab ua tau raws li kev tiv thaiv ib puag ncig.
CPE muaj kev ua haujlwm siab thiab tuaj yeem ua rau hauv cov khoom ua tau raws li ntau yam kev xav tau. CPE muaj kev ua tau zoo, Mooney viscosity (ML121 1+4) yog nyob nruab nrab ntawm 50-100, thiab muaj ntau qib xaiv los ntawm.
Post lub sij hawm: Jun-13-2023
