Cov ntaub ntawv dab tsi yog siv rau yas thiab PVC tarps thiab dab tsi yog qhov txawv?
Oct 17, 2022
Ua ntej, PVC tarps yog tsim los ntawm high-density cross-woven polyethylene coated nrog polyethylene laminates thiab nplooj ntawv. Qhov nruab nrab ntawm cov tarps yog xoob woven los ntawm strips ntawm polyethylene yas nrog flakes glued rau saum npoo. Cov nplooj ntawv no tuaj yeem yog polyethylene siab ntom ntom ntom ntom polyethylene (LDPE). Tsis tas li ntawd, lawv tau kho nrog ultraviolet (UV) lub teeb rau lub neej ua haujlwm ntev.
PVC cov ntaub tsis muaj dej yog coated nrog UV txheej los tiv thaiv lawv los ntawm tshav ntuj. UV txheej tiv thaiv cov khoom los ntawm kev puas tsuaj vim lub hnub degrades polyester thiab cov ntaub ntawv tawg nyob rau hauv nws.
Vinyl tarps, ntawm qhov tod tes, yog tsim los ntawm high-strength polyethylene terephthalate (PET) scrim thiab reinforced PVC laminate. Laminated coatings ua vinyl tarps muaj zog thiab tiv taus cov khoom puas. Liners feem ntau yog nplaim taws. Qhov zoo tshaj plaws vinyl tarps nyob rau hauv kev ua lag luam yog tsim los ntawm NFPA -701 cov ntaub ntawv raws li nplaim taws retardant.
Qhov txawv tsuas yog cov ntaub ntawv siv los ua ob yam khoom. Txawm li cas los xij, vinyl tarps paub tias muaj zog dua li PVC tarps. Vinyl muaj zog heev, abrasion resistant, thiab ntau resistant rau abrasion. Feem ntau hais lus, coated vinyl tarps muab qhov zoo tshaj plaws kev puas tsuaj, uas yog vim li cas lawv feem ntau siv rau ntawm txoj kev semi-trailers uas muaj ntau hnav thiab tsim kua muag ntawm tus ncej.
