| PVA/Nano-SiO_2薄膜的制备表、征及性能研究 |
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| 引用本文： | 刘恩,何尖,陈弦,何波兵,周乐.PVA/Nano-SiO_2薄膜的制备表、征及性能研究[J].塑料科技,2011,39(1). |
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| 作者姓名： | 刘恩 何尖 陈弦 何波兵 周乐 |
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| 作者单位： | 1. 四川大学高分子科学与工程学院,四川成都,610065
2. 四川大学化学学院,四川成都,610065 |
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| 摘 要： | 采用熔融法制备了聚乙烯醇(PVA)/纳米二氧化硅(nano-SiO2)薄膜。利用FTIR、DMA﹑AFM﹑水煮、DMSO煮等方法对薄膜进行了表征,并探讨了nano-SiO2对PVA薄膜的改性机理。结果表明:nano-SiO2的加入使PVA/nano-SiO2薄膜的储能模量和损耗模量均明显提高,其玻璃化转变温度随着nano-SiO2含量的增加先降低后升高;PVA/nano-SiO2薄膜中存在着由羟基脱水而产生的化学交联结构,这种结构影响着薄膜的各种性能。
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| 关 键 词： | 聚乙烯醇 纳米二氧化硅 改性机理 |
Study on Preparation,Characterization and Property of PVA/Nano-SiO2 Film |
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| Liu En,He Jian,Chen Xian,He Bobing,Zhou Le.Study on Preparation,Characterization and Property of PVA/Nano-SiO2 Film[J].Plastics Science and Technology,2011,39(1). |
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| Authors: | Liu En He Jian Chen Xian He Bobing Zhou Le |
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| Affiliation: | Liu En1,He Jian1,Chen Xian2(1),He Bobing2,Zhou Le1-1 College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,China 2 College of Chemistry,China |
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| Abstract: | PVA/nano-SiO2 film was prepared by melt blending.The film was characterized by AFM,DMA,FTIR,water and DMSO dissolution tests.The modification mechanism of nano-SiO2 on PVA/nano-SiO2 film was also discussed.The results show that the addition of nano-SiO2 increases both storage modulus and loss modulus of PVA/nano-SiO2 film obviously;with the increase of nano-SiO2 content,the glass transition temperature of PVA/nano-SiO2 film decreases at first and then increases;there is chemical crosslinking structure in PV... |
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| Keywords: | PVA Nano-SiO2 Modification mechanism |
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