| 淀粉/聚乙烯醇泡沫塑料的制备及表面形貌分析 |
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| 引用本文： | 曾建兵,李陶,汪秀丽.淀粉/聚乙烯醇泡沫塑料的制备及表面形貌分析[J].高分子材料科学与工程,2009(4). |
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| 作者姓名： | 曾建兵 李陶 汪秀丽 |
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| 作者单位： | 四川大学化学学院环境友好高分子材料教育部工程研究中心; |
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| 基金项目： | 国家自然科学基金青年基金资助(50303012) |
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| 摘 要： | 以淀粉和聚乙烯醇(PVA)为主要原料,在适当助剂作用下共混发泡制成泡沫塑料。研究了淀粉与PVA的比例、发泡剂用量、发泡温度、压力等条件对泡沫密度的影响。研究发现,当淀粉/PVA比例为6.3,发泡剂用量为共混物固含量的0.4%,发泡温度为190℃时,泡沫制品具有较低的密度。比较了由醇解度为88%和99%的PVA制备的淀粉泡沫塑料的吸水性,发现由PVA 1799制备的泡沫具有较好的耐水性。扫描电子显微镜照片显示淀粉与PVA具有很好的相容性。
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| 关 键 词： | 淀粉 聚乙烯醇 泡沫 密度 |
Preparation and Surface Morphology of Starch/PVA Foam |
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| ZENG Jian-bing,LI Tao,WANG Xiu-li.Preparation and Surface Morphology of Starch/PVA Foam[J].Polymer Materials Science & Engineering,2009(4). |
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| Authors: | ZENG Jian-bing LI Tao WANG Xiu-li |
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| Affiliation: | Center for Degradable and Flame-Retardant Polymeric Materials;College of Chemistry;Sichuan University;Chengdu 610064;China |
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| Abstract: | Corn starch,which is abundant and biodegradable in the nature,together with poly(vinyl alcohol)(PVA) was used to make foams.Due to the density and water resistance are the two most important indexes for starch-based foam,many factors,including starch/PVA ratio,temperature,bowing agent amount,and pressure were investigated.The optimum conditions of preparation of low density starch-based foam have been found: the ratio of starch/PVA is 6.3,the amount of blowing agent is 0.4% of the solid content of blends,an... |
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| Keywords: | starch PVA foam density |
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