檢視聚乙烯醇薄膜的原始碼

[[File:聚乙烯醇薄膜.jpg|缩略图|[https://image.baidu.com/search/detail?ct=503316480&z=0&ipn=d&word=%E8%81%9A%E4%B9%99%E7%83%AF%E9%86%87%E8%96%84%E8%86%9C%20%20%20%E7%9F%A5%E4%B9%8E&step_word=&hs=0&pn=1&spn=0&di=16390&pi=0&rn=1&tn=baiduimagedetail&is=0%2C0&istype=2&ie=utf-8&oe=utf-8&in=&cl=2&lm=-1&st=-1&cs=4221684396%2C3312592428&os=924359003%2C2092156077&simid=0%2C0&adpicid=0&lpn=0&ln=287&fr=&fmq=1621484523339_R&fm=result&ic=&s=undefined&hd=&latest=&copyright=&se=&sme=&tab=0&width=&height=&face=undefined&ist=&jit=&cg=&bdtype=0&oriquery=&objurl=https%3A%2F%2Fgimg2.baidu.com%2Fimage_search%2Fsrc%3Dhttp%3A%2F%2F5b0988e595225.cdn.sohucs.com%2Fimages%2F20170829%2F4e8b41c1cead443994c37452bac58e58.jpeg%26refer%3Dhttp%3A%2F%2F5b0988e595225.cdn.sohucs.com%26app%3D2002%26size%3Df9999%2C10000%26q%3Da80%26n%3D0%26g%3D0n%26fmt%3Djpeg%3Fsec%3D1624076534%26t%3D81ca94d1c247ecae47dd03bca489c62d&fromurl=ippr_z2C%24qAzdH3FAzdH3Fooo_z%26e3Bf5i7_z%26e3Bv54AzdH3FwAzdH3F8mba809cl_9nm08c&gsm=1&rpstart=0&rpnum=0&islist=&querylist=&force=undefined 原图链接][https://www.sohu.com/a/168017459_436715 来自搜狐]]]
'''聚乙烯醇薄膜'''(简称PVA)，聚乙烯醇薄膜密度为1.26-1,29g/cm三次方，折射率为1.52，紫外线照射后发篮白色光。吸水性大，浸入水中能溶解。纤维的含水率可达30%-50%，在65%RH, 25 ℃ 环境下的含湿率也可达4.5%。能透过水蒸气，但难透过醇蒸汽，更不能透过有机溶剂蒸汽，[[]]惰性气体和氢气， 聚乙烯醇薄膜的阻隔性甚至优于偏二氯乙烯薄膜。