高速搅拌对淀粉/聚乙烯醇共混物薄膜性能的影响  

EFFECT OF HIGH SPEED STIRRING ON THE PROPERTIES OF STARCH/PVA BLEND FILM

作　　者：曾祥成[1] 刘白玲[1] 李坤福[1] 

机构地区：[1]高分子材料工程国家重点实验室四川联合大学高分子研究所

出　　处：《高分子材料科学与工程》1998年第6期125-128,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金重点项目"高分子材料反应性加工及体系流变学研究";国家自然科学基金"水溶性高分子材料的可生物降解研究"

摘　　要：通过高速搅拌，将淀粉与聚乙烯醇（ＰＶＡ）进行溶液共混，制备了淀粉／ＰＶＡ共混薄膜。测定了高速搅拌前后共混薄膜的力学性能、透明性、耐水性及生物降解性。结果表明，高速搅拌改善了淀粉／ＰＶＡ薄膜的力学性能、透明性与耐水性，并可提高共混膜的使用稳定性。The starch/PVA blend was prepared by means of high speed stirring and its properties was examined. The results indicate that a suitable mechanical action of high speed stirring has a favorable effect on the mechanical properties, transparency and water proof of the Strach/PVA blend films. The biodigradability of PVA is enhanced and the stability of starch is improved, both of the properties are required when the Starch/PVA blends film is used in practice. The improved properties of starch/PVA films obtained are due to that the dispersion of starch in PVA is improved by high speed stirring and the interaction between starch and PVA is strengthened.

关 键 词：淀粉 聚乙烯醇 搅拌 共混物 薄膜 生物降解 

分 类 号：O631.3[理学—高分子化学] TQ325.9[理学—化学]