Kev siv cov chlorinated polyethylene (CPE)

Isuav nrog kev ua cov txheej txheem tiv taus oxidation thiab tiv taus cua sov, cov ntaub thiab cov khoom lag luam, siv ua cov khoom hloov kho rau PVC, ABS thiab lwm yam polyolefins, tsim cov ntaub ntawv hauv pem teb uas tsis kub hnyiab thiab tiv taus tshuaj lom neeg, tawv tsiaj dag, yas ua npuas ncauj, zaj duab xis, phaj, cov ntaub ntawv laminated, cov xov hlau thiab cov hlau txheej, thiab lwm yam, thiab txhim kho qhov tawv thiab nplaim taws ntawm cov nplaum.

Chlorinated polyethylene (CPE) yog cov khoom siv polymer uas muaj cov hmoov dawb zoo li hmoov, tsis muaj tshuaj lom thiab tsis muaj ntxhiab. Nws muaj kev tiv thaiv huab cua zoo heev, tiv thaiv ozone, tiv thaiv tshuaj lom neeg, thiab tiv thaiv kev laus, nrog rau kev tiv thaiv roj, hluav taws kub, thiab xim zoo. Zoo toughness (tseem yoog tau ntawm -30 ...℃), kev sib raug zoo nrog lwm cov ntaub ntawv polymer, thiab qhov kub siab decomposition. Txoj kev aqueous theem ntawm chlorinated polyethylene feem ntau siv, uas muaj cov nqi tsim khoom tsawg thiab tsis muaj kuab paug. Lwm txoj kev yog txoj kev ncua, uas yog qhov paub tab thiab tuaj yeem tsim kho thiab siv hauv tsev. Nws muaj qhov ceev kom qhuav sai. Nws feem ntau siv rau hauv cov thoob dej cia khoom thiab cov qauv hlau los txhim kho kev nyab xeeb ntawm kev tsim kho. Cov qauv hauv tsev ntawm chlorinated polyethylene (CPE) feem ntau yog txheeb xyuas los ntawm cov lej xws li 135A, 140B, 239C, thiab lwm yam, qhov twg tus lej thawj zaug 1 thiab 2 sawv cev rau qhov seem crystallinity (TAC tus nqi), 1 sawv cev rau tus nqi TAC ntawm 0-10%, 2 sawv cev rau tus nqi TAC ntawm 10%, tus lej thib ob thiab thib peb sawv cev rau cov ntsiab lus chlorine, xws li 35 sawv cev rau cov ntsiab lus chlorine ntawm 35%, thiab tus lej kawg yog tsab ntawv ABC, siv los qhia qhov hnyav molecular ntawm cov khoom siv raw PE, nrog A yog qhov loj tshaj plaws thiab C yog qhov me tshaj plaws. Cov khoom siv Chlorinated polyethylene (CPE) hom A muaj qhov hnyav molecular siab tshaj plaws thiab viscosity yaj siab, thiab nws cov viscosity sib xws tshaj plaws nrog PVC. Nws muaj cov nyhuv dispersion zoo tshaj plaws hauv PVC thiab tuaj yeem tsim cov network zoo tagnrho zoo li daim ntawv dispersion. Yog li ntawd, cov khoom siv CPE hom A feem ntau raug xaiv los ua cov khoom hloov kho rau PVC. Hlau thiab cable (cov cables hauv thee, cov xov hlau teev tseg hauv UL thiab VDE cov qauv), cov yeeb nkab roj hmab hydraulic, cov yeeb nkab roj hmab tsheb, daim kab xev, cov phaj roj hmab, kev hloov kho cov yeeb nkab PVC profile, cov ntaub ntawv sib nqus, kev hloov kho ABS, thiab lwm yam. Tshwj xeeb tshaj yog kev txhim kho ntawm kev lag luam hlau thiab cable, nrog rau kev lag luam tsim khoom siv tsheb, tau tsav qhov kev thov siv rau cov roj hmab chlorinated polyethylene. Roj hmab hom chlorinated polyethylene yog cov roj hmab tshwj xeeb nrog kev ua tau zoo heev, kub thiab oxygen ozone laus tiv taus, thiab nplaim taws zoo.