作　　者： ; ; ; ;

机构地区： 合肥工业大学化学工程学院

出　　处： 《塑料制造》 2012年第7期54-56,共3页

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。 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.

关 键 词： 增塑剂 聚乙烯醇 非等温结晶 异相成核

领　　域： [化学工程]