Dab tsi yog polypropylene yog nqus cov khoom siv

Nws tuaj yeem pom qhov tseeb tias lub ntsiab raw ntawm polypropylene yog nqus cov khoom siv yog polypropylene. Polypropylene yog lub ntiaj teb' s lub teeb tsis sib xws thermoplastic. Nws lub ntsiab tseem ceeb ntawm cov khoom siv roj av yog roj av, thee, thiab lwm yam, uas tuaj yeem muab faib ua copolymer polypropylene thiab polypropylene raws li cov ntsiab lus ntawm ethylene. Homopolymer polypropylene muaj cov khoom zoo electrochemical thiab zoo kawg nkaus khoov kuj, thiab yog dav siv hauv ntim thiab cov khoom siv me me hauv tsev. Polypropylene xaim yog nqus tau cov khoom siv yog kom qhuav thiab do polypropylene, tso nws kom yaj thaum tshav kub kub, thiab tom qab ntawd muab tso rau hauv lub plhaw ntawm lub extruder. Lub polypropylene nkag mus rau hauv ntsia hlau ntsia hlau ntawm lub plhaw plhaw thiab raug yuam rau lub taub hau tshuab. Tom qab ib lub sijhawm, cov polypropylene yog extruded, thiab viscous polypropylene zaj duab xis yog tam sim ntawd nkag mus rau hauv lub thawv dej txias rau cov cua txias sai thiab shaping rau hauv zaj duab xis, tom qab lub pob tw slack txiav cov txheej txheem, thiab tom qab ntawd rhaub los ntawm ob pawg ntawm ci kub phaj Tom qab ua tiav, cov hlau yog mob ua ntu hauv kab ntawm lub ntsuas cua, kom cov polypropylene yog nqus cov khoom tsim. Feem ntau hais lus, polypropylene hlau yog nqus cov khoom siv yog siv dav hauv kev lag luam yas woven. Nws muaj kev txhim kho zoo corrosion, uas tsis yog dej nqus thiab lub zog tensile. Yog li ntawd, nws yog qhov tshwj xeeb rau lub hnab ntim khoom xws li cov hnab ntim khoom, lub hnab snakeskin, thiab cov lag luam hnyav hnyav. Rau polyethylene ntim hnab khoom lag luam, polyethylene muaj kev nruj dua thiab kev pab cuam lub neej ntev dua, thiab nws qhov rov siv tau dua yog ntau raws li qhov xav tau ntawm lub neej ntsuab tam sim no. Xyoo dhau los, polypropylene hlau cov ntaub ntawv kos duab tau suav nrog qhov sib piv ntawm cov khoom lag luam yas. Raws li kev txheeb cais, kev tsim cov khoom siv xov tiaj thiab cov khoom siv xov xov nyob rau xyoo 2017 noj txog 13,5 lab tons ntawm polypropylene, uas yog li 43% ntawm tag nrho kev noj ntawm polypropylene. Xyoo tsis ntev los no, Tuam Tshoj cov vaj tse av xis mas, xuab zeb xws li hnyav kev lag luam ntim xav tau kev loj hlob thiab qhov kev thov rau cov khoom lag luam thiab cov txiv hmab txiv ntoo ceev nrawm dua, thiab cov khoom lag luam polypropylene cov ntaub ntawv kos tau nce sai. Thaum tam sim no, kev lag luam polypropylene yog nqus khoom lag luam yog ib qho txaus siab, tab sis kev ua lag luam rau cov ntaub ntawv tshwj xeeb tseem loj. Los ntawm qhov pom ntawm cov ntaub ntawv ntshuam, 70% ntawm cov khoom lag luam tuaj yog cov khoom siv tshwj xeeb.