Dab tsi yog qhov txawv ntawm PVC cov khoom siv tawv thiab cov khoom muag PVC?
May 21, 2024
Qhov sib txawv tseem ceeb ntawm PVC tawv (rigid) thiab PVC mos (hloov) cov ntaub ntawv nyob rau hauv lawv cov tshuaj muaj pes tsawg leeg thiab lub cev muaj zog:
Tshuaj muaj pes tsawg leeg:
PVC, los yog polyvinyl chloride, yog ib qho hluavtaws polymer tsim los ntawm rov ua cov vinyl chloride monomer units. Ob qho tib si nruj thiab yoog raws cov ntaub ntawv PVC yog tsim los ntawm tib lub tsev tsim tshuaj lom neeg.
Txawm li cas los xij, cov txheej txheem tsim khoom thiab ntxiv cov yas yas txiav txim siab seb PVC yuav nruj lossis hloov tau.
Plasticizers:
Rigid PVC yog tsim tsis muaj plasticizers. Nws yog tsim los kom nruj thiab nruj, ua kom haum rau cov ntawv thov uas yuav tsum tau muaj zog thiab nruj, xws li cov kav dej, qhov rais thav duab, thiab sab.
Saj zawg zog PVC, ntawm qhov tod tes, muaj cov yas zoo li phthalates. Cov plasticizers no pab txhawb kev yooj yim thiab elasticity rau cov khoom, ua rau nws khoov tau thiab muaj peev xwm ua raws li ntau yam duab. Flexible PVC feem ntau yog siv rau hauv daim ntaub ntawv xws li hoses, tubing, cable rwb thaiv tsev, thiab vinyl flooring.
Lub cev muaj zog:
Rigid PVC muaj lub zog tensile siab thiab tiv taus qhov cuam tshuam, ua rau nws tsim nyog rau kev siv cov qauv.
Saj zawg zog PVC yog softer thiab ntau pliable, cia nws khoov thiab flex tsis tawg. Nws kuj zoo li yuav tiv taus cov tshuaj thiab puas dua li PVC tawv.
Daim ntawv thov:
Rigid PVC feem ntau yog siv rau hauv kev tsim kho, kav dej, thiab kev lag luam automotive rau kev siv qhov twg lub zog, durability, thiab seem stability yog qhov tseem ceeb.
Saj zawg zog PVC pom cov ntawv thov hauv kev lag luam xws li kev kho mob (kev kho mob tubing thiab IV hnab), hluav taws xob (hlau rwb thaiv tsev), automotive (cov ntsaws ruaj ruaj thiab gaskets), thiab cov khoom siv (cov khoom ua si thiab cov khoom siv hluav taws xob).
Qhov tshwm sim:
Rigid PVC feem ntau muaj qhov du, glossy nto thiab tswj nws cov duab zoo.
Saj zawg zog PVC tuaj yeem muaj qhov du lossis textured nto, nyob ntawm daim ntawv thov, thiab muaj peev xwm ncab thiab ua raws li cov duab sib txawv.
Hauv cov ntsiab lus, qhov tseem ceeb ntawm qhov sib txawv ntawm PVC tawv thiab PVC cov ntaub ntawv mos yog nyob rau hauv lawv qhov yooj yim, uas yog ua tiav los ntawm kev sib ntxiv ntawm plasticizers nyob rau hauv rooj plaub ntawm hloov tau yooj yim PVC. Txhua hom PVC muaj cov khoom tshwj xeeb haum rau cov ntawv thov tshwj xeeb.
