Polyethylene (PE)
Pob tshab: milky dawb translucent, waxy thaum tsis muaj xim.
Nta: Cov khoom xav tias slippery ntawm tes, mos thiab tawv. Feem ntau, tsawg ntom polyethylene yog mos thiab muaj pob tshab zoo; high density polyethylene yog ib qho nyuaj.
Cov khoom siv: hnab tes, cov kav dej, roj nruas, lub raj mis haus (calcium mis nyuj fwj), khoom siv txhua hnub, thiab lwm yam.
Polypropylene (PP)
Transparent: dawb, translucent, waxy thaum tsis muaj xim.
Nta: Sib zog dua polyethylene, pob tshab yog zoo dua polyethylene, nyuaj dua polyethylene.
Cov khoom: cov phiab, cov thoob, rooj tog zaum, zaj duab xis, woven hnab, lub raj mis, lub tsheb bumpers, thiab lwm yam.
Polystyrene (PS)
Pob tshab: Pob tshab thaum tsis muaj xim.
Nta: Cov khoom yog hauv av lossis raug ntaus, nrog cov hlau -zoo li lub suab nrov, zoo gloss thiab pob tshab, zoo ib yam li iav, nkig thiab yooj yim tawg, cov rau tes tuaj yeem taug qab ntawm cov khoom. Hloov kho polystyrene yog opaque.
Cov khoom siv: cov ntawv sau, khob, ntim khoom noj, khoom siv hauv tsev, khoom siv hluav taws xob, thiab lwm yam.
Polyvinyl chloride (PVC)
Transparent: Cov xim yog yellowish translucent thiab ci iab.
Nta: Pob tshab zoo dua li polyethylene, polyphenylene, thiab phem dua li polystyrene. Nws muab faib ua mos thiab tawv polyvinyl chloride raws li tus nqi ntawm cov additives. Cov khoom muag muag yog mos thiab tawv, thiab txhais tes zoo li nplaum; lub hardness ntawm cov khoom tawv yog siab dua li ntawm qhov tsawg ntom polyethylene, thiab qis dua li ntawm polypropylene, whitening tshwm sim ntawm inflection point.
Cov khoom siv: daim hlau, cov kav dej, cov thom khwm, cov khoom ua si, qhov rooj thiab qhov rais, hlau sheaths, ntawv sau, thiab lwm yam.
Polyethylene terephthalate (PET)
Pob tshab: Transparency yog qhov zoo.
Nta: Lub zog thiab tawv zoo dua li polystyrene thiab polyvinyl chloride, tsis yooj yim tawg.
Cov khoom siv: lub hnab ntim khoom noj, lub raj mis cov khoom lag luam, xws li cola, lub raj mis dej ntxhia, thiab lwm yam.
