Feature 1: Rigid PVC yog ib qho ntawm cov khoom siv dav siv ntau tshaj plaws.Cov khoom siv PVC yog cov khoom siv tsis-crystalline.

Feature 2: Stabilizers, lubricants, auxiliary processing agents, pigments, anti-impact agents thiab lwm yam additives feem ntau ntxiv rau PVC cov ntaub ntawv hauv kev siv tiag tiag.

Feature 3: PVC cov ntaub ntawv tsis muaj nplaim taws, siab zog, huab cua tsis kam thiab zoo heev geometric stability.

Feature 4: PVC muaj zog tiv thaiv oxidants, txo cov neeg ua haujlwm thiab muaj zog acids.Txawm li cas los xij, nws tuaj yeem corroded los ntawm concentrated oxidizing acids xws li concentrated sulfuric acid thiab concentrated nitric acid thiab tsis haum rau kev sib cuag nrog aromatic hydrocarbons thiab chlorinated hydrocarbons.

Feature 5: Lub melting kub ntawm PVC thaum lub sij hawm ua yog ib tug tseem ceeb heev txheej txheem parameter.Yog tias qhov ntsuas no tsis raug, nws yuav ua rau muaj teeb meem ntawm cov khoom decomposition.

Feature 6: Cov yam ntxwv ntws ntawm PVC yog qhov tsis zoo, thiab nws cov txheej txheem yog nqaim heev.Tshwj xeeb tshaj yog cov khoom hnyav molecular PVC yog qhov nyuaj rau cov txheej txheem (cov khoom siv no feem ntau yuav tsum tau ntxiv cov roj nplua nyeem txhawm rau txhim kho cov yam ntxwv ntws), yog li cov khoom siv PVC nrog qhov hnyav molecular feem ntau yog siv.

Feature 7: Lub shrinkage tus nqi ntawm PVC yog tsawg heev, feem ntau 0.2 ~ 0.6%.

Polyvinyl chloride, abbreviated li PVC (Polyvinyl chloride) hauv lus Askiv, yog vinyl chloride monomer (VCM) hauv peroxides, azo tebchaw thiab lwm yam pib;los yog nyob rau hauv qhov kev txiav txim ntawm lub teeb thiab cua sov raws li dawb radical polymerization cov tshuaj tiv thaiv mechanism Polymers tsim los ntawm polymerization.Vinyl chloride homopolymer thiab vinyl chloride copolymer yog sau ua ke hu ua vinyl chloride resin.

PVC yog cov hmoov dawb nrog cov qauv amorphous.Lub degree ntawm branching yog me me, tus txheeb ze ceev yog hais txog 1.4, lub iav hloov kub yog 77 ~ 90 ℃, thiab nws pib decompose ntawm txog 170 ℃.Kev ruaj ntseg rau lub teeb thiab cua sov tsis zoo, siab dua 100 ℃ lossis tom qab lub sijhawm ntev.Lub hnub raug yuav decompose los tsim hydrogen chloride, uas yuav ntxiv autocatalyze lub decomposition, ua rau discoloration, thiab lub cev thiab txhua yam khoom yuav poob sai sai.Hauv kev siv cov tswv yim, stabilizers yuav tsum tau ntxiv los txhim kho kev ruaj ntseg rau cov cua sov thiab lub teeb.

Qhov hnyav molecular ntawm industrially ua PVC yog feem ntau nyob rau hauv thaj tsam ntawm 50,000 mus rau 110,000, nrog ib tug loj polydispersity, thiab lub molecular hnyav nce nrog rau qhov txo ntawm lub polymerization kub;Nws tsis muaj qhov ruaj khov melting point, pib soften ntawm 80-85 ℃, thiab ua viscoelastic ntawm 130 ℃ , 160 ~ 180 ℃ pib hloov mus rau viscous kua xeev;Nws muaj cov khoom siv zoo, lub zog tensile yog li 60MPa, qhov cuam tshuam lub zog yog 5 ~ 10kJ / m2, thiab nws muaj cov khoom zoo dielectric.

PVC siv los ua lub ntiaj teb loj tshaj plaws ntawm cov khoom siv dav dav, thiab nws tau siv dav.Nws yog dav siv hauv cov khoom siv hauv tsev, cov khoom lag luam, cov khoom siv niaj hnub, cov tawv nqaij hauv pem teb, cov vuas hauv pem teb, cov tawv tawv, cov kav dej, cov xov hlau thiab cov cables, ntim zaj duab xis, lub raj mis, cov ntaub ntawv foaming, sealing cov ntaub ntawv, fibers, thiab lwm yam.

Peb lub Hoobkas siv zoopwmcov ntaub ntawv, xws li 718, 718H, thiab lwm yam., cov ntaub ntawv pwm zoo, lub neej ntev, thiab cov khoom siv sib txawv ntawm cov khoom siv yas tuaj yeem tsim cov khoom yas zoo.