Waa maxay faraqa u dhexeeya PET iyo filimada PVC? PET (polyethylene terephthalate) iyo PVC (polyvinyl chloride) waa laba maaddooyin polymeric ah oo leh qaab-dhismeedka kiimikada oo dhan oo kala duwan: PET waxay ku sameysan tahay polycondensation of terephthalic acid iyo ethylene glycol, iyada oo u kala saaraysa sidii polyester heerkulbeeg ah; PVC, cagsigeeda, waxaa lagu soo saaraa polymerization of monomers chloride vinyl oo inta badan u baahan in lagu daro balaastikada si loo hagaajiyo dabacsanaanteeda ama adkeynteeda. Waxaa xusid mudan, gudaha gudaha filimada-isbeddelka baabuurta, alaabooyinka inta badan-iyo si khalad ah-loogu yeero "filimiinta PET" waa, inta badan, dhab ahaantii filimada dusha sare ee PVC ee u isticmaala PET kaliya sidii warqad taageero ah. Walaxda si dhab ah loogu dabaqay rinjiga gaadhigu waxa ay ahaanaysaa PVC, iyada oo PET-du u adeegayso oo kaliya sida lakabka taageerada qaabdhismeed inta lagu jiro rakibidda. Filimka PET: Cadaadiska Heerkulka - U adkaysta qabow ilaa -70 ° C iyo kulayl ilaa 120-200 ° C; waxay muujisaa xasilooni cabbir heersare ah. Filimka PVC: Cadaadiska heerkulka - U adkaysta qabow ilaa -70 ° C iyo kulayl ilaa 120-200 ° C; waxay muujisaa xasilloonida cabbirka. Si kastaba ha ahaatee, filimka PVC guud ahaan waxa uu leeyahay iska caabin qabow oo liita (oo noqda mid jajaban heerkulka hooseeya) iyo iska caabbinta kulaylka daciifka ah (u nugul qallafsanaanta ama burburka ka sarreeya 100 ° C). Farqiga Muhiimka ah: PET waxay ku habboon tahay heerkulka sare ama jawiga qabowga daran, halka PVC ay u nugul tahay kuleylka kuleylka ama dillaaca xaaladaha qabow.