| PVA/Mg（NO3）2复合膜的制备及性能 |
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| 引用本文： | 江献财,刘磊,夏超,张熙,代华.PVA/Mg（NO3）2复合膜的制备及性能[J].高分子材料科学与工程,2011(1):127-129,134. |
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| 作者姓名： | 江献财 刘磊 夏超 张熙 代华 |
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| 作者单位： | 高分子材料工程国家重点实验室四川大学高分子研究所; |
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| 基金项目： | 国家自然科学基金资助项目(50833003) |
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| 摘 要： | 采用溶液成膜的方法制备了不同Mg(NO3)2含量的聚乙烯醇(PVA)/Mg(NO3)2复合薄膜。考察了PVA/Mg(NO3)2复合薄膜在相对湿度为54%时的含水量。采用X射线衍射(XRD),差示扫描量热(DSC),动态力学性能(DMA)和力学性能测试方法研究了Mg(NO3)2对PVA膜的结构和性能的影响。结果表明,Mg(NO3)2与PVA的相容性非常好,所制备的PVA/Mg(NO3)2复合膜的透明性好。Mg(NO3)2的加入能显著破坏PVA中的氢键作用,增加PVA膜中的水含量,降低PVA的结晶度,使复合膜的玻璃化温度明显降低。拉伸实验表明,PVA/Mg(NO3)2具有比纯PVA膜更低的拉伸强度和更高的断裂伸长率。
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| 关 键 词： | 聚乙烯醇 硝酸镁 改性 复合膜 |
Preparation and Properties of PVA/Mg(NO_3)_2 Film |
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| Xiancai Jiang,Lei Liu,Chao Xia,Xi Zhang,Hua Dai.Preparation and Properties of PVA/Mg(NO_3)_2 Film[J].Polymer Materials Science & Engineering,2011(1):127-129,134. |
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| Authors: | Xiancai Jiang Lei Liu Chao Xia Xi Zhang Hua Dai |
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| Affiliation: | Xiancai Jiang,Lei Liu,Chao Xia,Xi Zhang,Hua Dai(State Key Laboratory of Polymer Materials Engineering,Polymer Research Institute,Sichuan University,Chengdu 610065,China) |
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| Abstract: | Poly(vinyl alcohol)(PVA)/Mg(NO3)2 blended films were prepared by casting from the solutions containing different content Mg(NO3)2 and PVA.The water content in blended films was determined at RH of 54%.The properties of PVA/Mg(NO3)2 blended films were investigated by X-ray diffraction,differential scanning calorimetry,dynamic mechanical analysis and mechanical testing.It has been shown that the addition of Mg(NO3)2 can disrupt the inter and intra chain hydrogen bonding of the PVA chains and therefore reduce ... |
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| Keywords: | poly(vinyl alcohol) Mg(NO3)2 modification blended films |
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