| 增塑剂改性聚乙烯醇复合材料的非等温结晶动力学研究 |
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| 引用本文： | 王雷,陈俊伟,周正发,徐卫兵.增塑剂改性聚乙烯醇复合材料的非等温结晶动力学研究[J].塑料制造,2012(7):54-56. |
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| 作者姓名： | 王雷 陈俊伟 周正发 徐卫兵 |
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| 作者单位： | 合肥工业大学化工学院 |
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| 摘 要： | 通过加入特殊增塑剂改性聚乙烯醇(PVA),实现了聚乙烯醇的熔融加工。采用DSC并运用Jeziorny修正的Avrami方程研究了不同用量增塑剂改性聚乙烯醇的非等温结晶特点。结果表明,增塑剂可以提高聚乙烯醇的结晶速率和结晶完善度,并且使微晶尺寸变小,增塑剂有异相成核作用。
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| 关 键 词： | 增塑剂 聚乙烯醇 非等温结晶 异相成核 |
Nonisothermal crystallization kinetics of modified PVA with plasticizers |
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| Wang Lei Chen Junwei Ren Fengmei Zhou Zhengfa Xu Weibing.Nonisothermal crystallization kinetics of modified PVA with plasticizers[J].Plastics Manufacture,2012(7):54-56. |
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| Authors: | Wang Lei Chen Junwei Ren Fengmei Zhou Zhengfa Xu Weibing |
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| Affiliation: | Wang Lei Chen Junwei Ren Fengmei Zhou Zhengfa Xu Weibing*(College of Chemical Engineering,Hefei University of Technology,Hefei Anhui,230009) |
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| Abstract: | The thermoplastic polyvinyl alcohol(PVA) was prepared by adding special plasticizers through extrusion process.The non-isothermal crystallization kinetics of modified PVA with different amounts of plasticizers was studied through Avrami equation adjusted by Jeziorny,based on DSC analysis.Results show that:plasticizers may increase the rate and perfect degree of crystallization of PVA,The crystallite size becomes smaller and the plasticizers have heterogeneous nucleation effects. |
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| Keywords: | Plasticizers Poly(vinyl alcohol) Nonisothermal crystallization kinetics Heterogeneous nucleation |
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