Nrog rau kev sib txawv ntawm hom tshuaj thiab kev txhim kho ntawm tib neeg txoj kev noj qab haus huv, kev tswj hwm kev lag luam tau ua kom muaj zog ntxiv, thiab cov kev xav tau ntawm kev ntim tshuaj tau nce siab thiab siab dua.Ntawm cov khoom ntim ntau, cov yas yog cov khoom siv dav tshaj plaws, thiab feem ntau ua tiav rau hauv lub raj mis tshuaj los khaws cov tshuaj.Qhov kev tshuaj xyuas zoo ntawm cov fwj tshuaj muaj dab tsi?

Cov khoom siv rautshuaj fwjmuaj xws li polyethylene (PE), polypropylene (PP), polyester (PET), thiab lwm yam. Raws li cov ntaub ntawv sib txawv, cov txheej txheem tuaj yeem xaiv extrusion tshuab, txhaj tshuab, txhaj tshuaj molding, txhaj tshuaj stretch tshuab, thiab lwm yam. Cov tshuaj siv tshuaj sib txawv sib txawv. hom qauv zoo rau cov fwj tshuaj.Piv txwv li, cov qauv zoo rau lub raj mis polyethylene suav nrog "Cov Qauv Zoo rau Cov Khoom Siv Hauv Qhov Ncauj Cov Tshuaj Kho Hniav HDPE Lub raj mis" rau cov tshuaj ua kua, thiab "Cov Khoom Siv Hauv Qhov Ncauj Rau Cov Tshuaj Hauv Qhov Ncauj" rau cov khoom siv tshuaj.Cov Qauv Zoo rau High Density Polyethylene Fwj.

Los txiav txim seb qhov zoo ntawm covlub raj mis tshuajyog tsim nyog, nws yuav tsum xeem dhau ib tug xov tooj ntawm kev xeem.Ntawm cov qauv zoo ntawm ntau yamtshuaj fwj, cov khoom kuaj pom muaj xws li: qhov tsos, qhov seem ntawm qhov hluav taws kub, dej vapor kis tus nqi, saturated noo noo nqus tus nqi ntawm desiccant, ziab lub sij hawm luv luv ya raws absorbing tus nqi, anti-poob kev ua tau zoo, noo noo cov ntaub ntawv, decolorization test, leachables xeem (yooj yim oxides, hnyav hlau, tsis-volatiles), microbial txwv, txawv txav toxicity, thiab lwm yam.

Nws yog ib qho tsim nyog sau cia tias txawm hais tias lub raj mis tshuaj muaj cov qauv zoo sib xws, cov tuam txhab tshuaj yuav tsum sim ntxiv cov qauv ntim raws li cov yam ntxwv ntawm cov tshuaj thaum xaiv ntim kom ntseeg tau tias muaj kev sib raug zoo ntawm cov tshuaj thiab ntim khoom.