PE Food Wraps

PE Food Wrapsqhwv cov khoom noj khoom haus qib yog raws li lub teb chaws kev nyab xeeb zaub mov. Tsis muaj tshuaj lom cov khoom xyaw hauv kev siv. Thaum siv ntau yam khoom, txhua tus neeg yuav tsum xav txog seb cov khoom puas zoo rau kev noj qab haus huv. Ntau tus neeg tsis nkag siab tias cov khoom siv pe yog dab tsi, yog li cov khoom siv pe yog dab tsi?
Cov khoom siv ntawm PE Food Wraps yog polyethylene, uas yog cov thermoplastic resin nrog cov yam ntxwv tsis muaj ntxhiab thiab tsis muaj tshuaj lom. Nws tuaj yeem tiv taus qhov kub ntawm qhov qis tshaj 17 degrees Celsius, muaj kev ruaj ntseg zoo, thiab tiv taus acetic acid yaig. Ntxiv mus, nws muaj qhov nqus dej tsawg heev, yog li polyethylene yuav tsis yaj hauv cov kuab tshuaj ntawm qhov kub thiab txias.
Polyethylene yog ib qho thermoplastic cob ua los ntawm ethylene los ntawm polymerization. Tsawg ntom ntom polyethylene tau siv dav hauv lub neej, xws li zaub mov, chiv, ntim khoom thiab lwm yam. Khoom noj khoom haus qib yog nyob rau hauv txoj kab nrog lub teb chaws zaub mov kev nyab xeeb, yog li nws tsis yooj yim rau tshwm sim tshuaj lom nyob rau hauv tus txheej txheem ntawm kev siv, yuav tsum tau paub tseeb tias siv.
Khoom noj khoom haus qib pe cov khoom siv muaj kev nyab xeeb, tab sis kev siv kub tsis pom zoo kom siab tshaj 80 degrees, yog tias ntau tshaj 80 degrees yuav tsim cov teeb meem, yog li nws tsis pom zoo kom boil. Khoom noj khoom haus qib pe cov khoom siv feem ntau yog siv rau cov thawv noj su uas siv tau pov tseg, cua sov loj tuaj yeem tsim cov khoom tsis zoo rau lub cev. Hauv lub neej txhua hnub, kev siv cov khoom noj khoom haus qib pe tuaj yeem pom cov khoom siv ceev faj, siv kom raug, tiv thaiv kev puas tsuaj rau kev noj qab haus huv.