PVA水凝胶(PVA-H)的干燥与溶胀性能  

Drying and Swelling of PVA(Poly Vinyl Alcohol)

作　　者：张伟[1] 李辉勤[1] 俞宏英[1] 孟惠民[1] 顾正秋[1] 孙冬柏[1] 

机构地区：[1]北京科技大学材料工程学院腐蚀与防护中心,北京100083

出　　处：《北京科技大学学报》2002年第2期161-164,共4页Journal of University of Science and Technology Beijing

基　　金：北京市科委科技项目

摘　　要：研究了室温自然干燥和酒精脱水干燥对于干态ＰＶＡ水凝胶在３０℃的蒸馏水中２次 溶胀性能的影响．结果表明，用酒精脱水干燥的ＰＶＡ水凝胶的２次溶胀度大于在室温自然干燥 的ＰＶＡ水凝胶的２次溶胀度．对湿态ＰＶＡ水凝胶未进行干燥处理前先进行１次溶胀后，再用同 一种于燥方法处理２种试样，结果表明，经过１次溶胀的ＰＶＡ水凝胶在２种干燥条件下的２次 溶胀度均大于未经过１次溶胀的ＰＶＡ水凝胶的２次溶胀度．The effects of different drying methods and procedures which are used to deal with poly(vinyl alcohol)on the swelling degree of poly (vinyl alcohol) gel have been investigated. The solubility of poly(vinyl alcohol) dried by alcohol is larger than that of poly(vinyl alcohol) dried by the air. The swelling degree of poly (vinyl alcohol) first swelled after thawing is larger than that of poly(vinyl alcohol) without first swelled after thawing.

关 键 词：PVA 水凝胶 PVA-H 干燥 溶胀性能 聚乙烯醇 

分 类 号：O632.31[理学—高分子化学]