Tuam Tshoj PVC hom npe feem ntau yog siv polymerization degree lossis qauv annotation.Piv txwv li, xya hom PVC (hom S-800, SG-7) los yog yim hom PVC (hom S-700, SG-8) nrog zoo zoo yuav raug cim txawv los ntawm txawv manufacturers.Lawv feem ntau yog cim nrog SG thiab ib tus lej los sawv cev rau cov qauv PVC.Tus naj npawb ntawm ntau pua thiab txhiab tus cim sawv cev rau qib ntawm polymerization (tib tus lej sawv cev rau tib yam khoom, xws li Qingdao Haijing HS1000, Shanghai chlor-alkali WS1000,Qilu Petrochemical S1000tag nrho sawv cev tsib hom PVC).
Qhov kev sib piv uas HAUJ LWM UA HAUJ LWM YUAV TSUM TAU TXAIS COV KHOOM NTAUB NTAWV SIV 7, 8 HOM, YUAV UA LI CAS YUAV TSUM TAU QILU PETROCHEMICAL, Shanghai CHLOR-ALKALI, CANG HUA, Qingdao HAI JING, DAGU HUA'S
Qee tus neeg koom tes tshiab thiab nyiam tuaj yeem nug yog vim li cas cov tuam txhab daim ntawv nyiam siv hom 7 thiab hom 8 es tsis yog hom 5. Tsis muaj lwm yam, tab sis xya, yim hom PVC polymerization degree yog tsawg, yooj yim rau kev ua.Tsis tsuas yog daim ntawv, PVC yeeb nkab fittings, PVC li qub kuj haum rau siv.
Cov chaw ua yeeb yaj kiab feem ntau siv hom 5. Ib qho kev faib ua feem ntau ntawm calcium carbonate kuj tau ntxiv los txo cov nqi, uas yuav tsum tsis txhob piav qhia ntawm no.
Nyob rau hauv cov xyoo txaus ntshai, PVC hauv peb lub teb chaws tau muab faib ua yim hom, uas yog hom 1 txog 8. Yim tus kwv tij tau raug sim (ravaged) los ntawm kev ua lag luam, thiab tsuas yog plaub tus tseem:
Hom 3(polymerization degree 1300, feem ntau yog siv rau kev tsim cov hlau thiab cable, calendering zaj duab xis), hom 5 (polymerization degree 1000, feem ntau yog siv rau profiles, kav), thiab hom 7 yim.
Mainstream PVC manufacturing siv txoj kev ncua kev kawm ntawv, ntawm kev xaiv ntawm txawv ncua kev kawm ntawv dispersant, yuav tau txais particle qauv thiab morphology ntawm txawv ob hom resin.
Post lub sij hawm: Aug-08-2022