芒果视频下载

保鮮膜在生(sheng)產(chan)過程中普遍添(tian)加(jia)了塑化劑(ji)，保鮮膜對人體健康的影響也受(shou)到了人們(men)的關注。

市場上(shang)的(de)保(bao)(bao)鮮(xian)(xian)膜大體分(fen)為兩類，一類是普通(tong)保(bao)(bao)鮮(xian)(xian)膜，適用(yong)(yong)于冰箱保(bao)(bao)鮮(xian)(xian)；一類是微波爐保(bao)(bao)鮮(xian)(xian)膜，既可用(yong)(yong)于冰箱保(bao)(bao)鮮(xian)(xian)，也(ye)可用(yong)(yong)于微波爐。后一種保(bao)(bao)鮮(xian)(xian)膜在耐熱、無毒性(xing)等(deng)方面遠(yuan)(yuan)遠(yuan)(yuan)優于普通(tong)保(bao)(bao)鮮(xian)(xian)膜。因此，消費者在使(shi)用(yong)(yong)選擇(ze)上(shang)要特別注意，分(fen)項使(shi)用(yong)(yong)。

購(gou)(gou)買保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)膜(mo)(mo)(mo)(mo)時(shi)，首先建議購(gou)(gou)買聚乙烯(xi)（PE）材質(zhi)制成的(de)(de)自粘保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)膜(mo)(mo)(mo)(mo)，尤其是(shi)在(zai)為肉食(shi)、水(shui)果(guo)等進行保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)時(shi)，因(yin)為從安全性(xing)(xing)上來講，PE材質(zhi)的(de)(de)保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)膜(mo)(mo)(mo)(mo)是(shi)最安全的(de)(de)。如果(guo)希望保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)期(qi)較(jiao)長(chang)(chang)，建議選擇聚偏二氯(lv)乙烯(xi)（PVDC），因(yin)為這種(zhong)材質(zhi)的(de)(de)保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)膜(mo)(mo)(mo)(mo)保(bao)(bao)(bao)濕(shi)性(xing)(xing)能比(bi)較(jiao)好(hao)(hao)，在(zai)三種(zhong)材質(zhi)的(de)(de)保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)膜(mo)(mo)(mo)(mo)中保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)期(qi)最長(chang)(chang)。聚氯(lv)乙烯(xi)（PVC）材質(zhi)的(de)(de)保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)膜(mo)(mo)(mo)(mo)由于透明度好(hao)(hao)、粘度好(hao)(hao)、彈性(xing)(xing)好(hao)(hao)，價格(ge)較(jiao)為便宜，所以也(ye)成為很(hen)多人(ren)的(de)(de)選擇，但(dan)一定(ding)要(yao)注(zhu)意不能用來做油脂食(shi)品(pin)的(de)(de)保(bao)(bao)(bao)鮮(xian)(xian)(xian)(xian)