Dab tsi yog PVC ntawv? Kev paub txog PVC ntawv

PVC daim ntawv yog ua los ntawm PVC ua cov khoom siv raw, thiab nws qhov hla ntu yog honeycomb mesh qauv.
Nws yog ib hom nqus plua plav yas zaj duab xis, uas yog siv rau lub ntim ntim ntawm ntau hom ntawm lub rooj, yog li nws tseem hu ua zaj duab xis hniav thiab nplaum zaj duab xis, uas yog siv rau ntau yam kev lag luam xws li cov khoom siv hauv tsev, ntim, tshuaj, thiab lwm yam. Ntawm lawv, lub tsev lag luam cov ntaub ntawv kev lag luam tso rau cov kev faib ua feem ntau, suav txog 60%, tom qab ntawd kev lag luam ntim, thiab ob peb lwm qhov kev lag luam thov kev lag luam me. Raws li qhov ntsuas ntawm qhov nyuaj, nws tuaj yeem faib ua cov mos mos PVC thiab tawv tawv PVC.
2 、 Cov yam ntxwv ntawm PVC ntawv
1. Cov dej tsis qab, nplaim taws rov qab, kua qaub thiab alkali tiv taus, mothproof, lub teeb yuag, kev tiv thaiv thaum tshav kub kub, lub suab rwb thaiv tsev thiab kev poob siab.
2. Nws tiav raws li ntoo, thiab nws cov kev ua tau zoo tshaj li cov ntoo.
3. Nws yog qhov zoo tshaj plaws hloov txig rau ntoo, aluminium thiab puas pawg thawj coj saib.
3 、 Cov yam ntxwv ntawm PVC ntawv
1. Qhov kev ua tau zoo dav dav PVC resin yog cov hmoov dawb lossis dawb daj nrog tus txheeb ze ntom ntawm 1.35-1.45. Cov tawv tawv thiab tawv muag tuaj yeem hloov kho los ntawm kev ntxiv tus lej ntawm cov yas. Cov dej nqus thiab cua permeability ntawm PVC ntshiab yog qhov tsawg heev.
2. Mechanical zog PVC muaj siab hardness thiab mechanical zog. Nws nce nrog qhov nce ntawm molecular phaus, tab sis poob nrog qhov nce ntawm qhov kub. Cov cuab yeej lub zog ntawm PVC tsis yeem yog qhov zoo, thiab nws cov txheej txheem elastic tuaj yeem ncav cuag 1500-3000mpa. Lub elasticity ntawm mos PVC yog 1.5-15 MPa. Tab sis elongation thaum so yog siab ntau li 200% - 450%. Kev txhuam txhuam coefficient ntawm PVC yog 0.4-0.5 hauv zoo li qub thiab 0.23 hauv dynamic.
3. Lub thermal stability ntawm PVC yog qhov tsis zoo heev. Nws pib ua rau siab li 140 ℃, thiab lub siab yaj kub yog 160 ℃. Cov kab sib txuas ntawm cov tawm sib npaug ntawm PVC yog qhov me me, nws yog nplaim hluav taws kub, thiab nws cov pa oxidation muaj nyob hauv 45.
4. Cov hluav taws xob hluav taws xob PVC yog ib hom polymer uas muaj cov khoom hluav taws xob zoo, tab sis nws cov hluav taws xob hluav taws xob tsis zoo li PP thiab PE vim nws qhov loj polarity. Dielectric tas li, tangent tus nqi ntawm dielectric poob lub kaum ntse ntse thiab ntim resistivity yog qhov loj, thiab qhov corona tsis zoo, uas feem ntau haum rau nruab nrab thiab tsis tshua muaj voltage thiab tsawg zaus cov khoom rwb thaiv tsev.
5. Ib puag ncig kev ua tau zoo PVC tuaj yeem tiv taus feem ntau ntawm cov ua kua qaub, alkalis, ntsev, cov kuab tshuaj organic feem ntau. Nws yog qhov tsim nyog rau tshuaj thiab tshuaj siv tshuaj tua kab mob.