PVC pawg thawj coj saib yog ib yam ntawm cov polymer nrog zoo hluav taws xob kev ua tau zoo, tab sis nws cov hluav taws xob rwb thaiv tsev tsis zoo li PP thiab PE vim nws siab tsis kam. Dielectric tas li, tangent ntawm dielectric poob lub kaum ntse ntse, loj ntim resistivity, tsis zoo corona kuj, feem ntau haum rau nruab nrab thiab tsawg voltage tsawg zaus insulating cov ntaub ntawv. Cov yam ntxwv no ua rau nws tus kheej extinguishing. Cia peb saib.
Lub thermal stability ntawm PVC board tsis zoo heev. Nws pib decompose ntawm 140 degree thiab melting kub yog 160 degree. PVC muaj tsawg linear expansion coefficient, nplaim retardant thiab oxidation index saum toj no 45.
Mechanical zog: PVC board muaj siab hardness thiab mechanical zog. Nws nce nrog qhov nce ntawm qhov hnyav molecular, tab sis txo qis nrog qhov nce ntawm qhov kub thiab txias. UPVC muaj cov khoom siv zoo, thiab nws cov qauv elastic tuaj yeem ncav cuag {{0}} MPa. Lub elasticity ntawm saj zawg zog PVC yog 1.5-15 MPa Tab sis qhov elongation ntawm so yog siab li 200 feem pua -450 feem pua . PVC muaj qhov sib txhuam nruab nrab, qhov sib txhuam zoo li qub yog 0.
Kev ua haujlwm ib puag ncig: PVC pawg thawj coj tuaj yeem tiv taus feem ntau inorganic acids, alkalis, ntsev thiab feem ntau cov kuab tshuaj organic. Nws yog tsim rau cov ntaub ntawv anticorrosive hauv kev lag luam tshuaj thiab tshuaj.
Kev tsim cov yam ntxwv 1 Amorphous cov khoom uas tsis tshua muaj hygroscopicity thiab dej tsis zoo. Txhawm rau txhim kho cov fluidity thiab tiv thaiv npuas, cov yas tuaj yeem qhuav ua ntej. Cov pwm pouring system yuav tsum tuab thiab luv. Kev ceev faj yuav tsum tau them rau lub hnab hom plua plav tshem tawm accessories. Ntu rooj vag yuav tsum loj yam tsis muaj cov ces kaum tuag. Cov pwm yuav tsum txias thiab qhov chaw yuav tsum yog chrome plated.
2. vim nws perishability thiab fluidity, nws yog qhov zoo dua los siv cov cuab yeej tshwj xeeb thiab pwm. Tag nrho cov khoom yuav tsum tau ntxiv nrog ntau hom thiab ntau npaum li cas ntawm additives raws li xav tau.
3. Nws yog qhov yooj yim heev kom paub qhov txawv. Nws yog qhov yooj yim dua rau kev paub qhov txawv thaum nws nyob rau hauv kev sib cuag nrog hlau thiab tooj liab ntawm 200 degree, thiab muaj kev lwj thiab khaus roj tawm hauv cov txheej txheem ntawm qhov txawv. Qhov kub sib txawv yog me me.
Cov saum toj no yog cov ntsiab lus niaj hnub no. PVC pawg thawj coj saib muaj cov khoom zoo heev thiab cov khoom siv hluav taws xob, muaj zog acid thiab alkali tsis kam, zoo tshuaj stability, tab sis tsis tshua muaj softening point. Nws yog tsim rau kev ua nyias daim hlau, rwb thaiv tsev txheej ntawm cov xov hlau thiab cables, ntsaws ruaj ruaj, thiab lwm yam. Yog tias koj muaj lus nug, thov hu rau peb.