乙酰淀粉/PVA共混体系转矩流变试验研究  

Torque Rheological Property Experimental Research of Acetyl Starch/PVA Blends

作　　者：李志庭[1] 张世奇[1] 

机构地区：[1]河北大学化学与环境科学学院,河北保定071002

出　　处：《塑料》2008年第4期83-86,58,共5页Plastics

摘　　要：为开发性能良好的可塑性淀粉塑料,将转矩流变设备、正交分析方法和DPS统计处理相结合并首次引入淀粉研究领域。首先用转矩流变仪模拟了乙酰淀粉/聚乙烯醇(PVA)共混体系的挤出加工过程,并以L16(45)正交试验结合DPS统计处理系统综合考察了PVA比例、增塑剂、转速、温度对共混体系转矩流变性的影响。结果表明:共混体系在170℃、转速15 r/m in条件下每100g乙酰淀粉加入20g甘油、5g山梨醇和10g PVA时可以得到较好的转矩流变性能,同时还验证和讨论了实验影响因子的交互影响效应。In order to develop starch plastics with good performance. The torque rhemeter,orthogonal experiment and DPS were brought into the field of starch research. Firstly, the extrusron processing of acetyl stareh/polyvinyl alcohol（PVA） blends were simulated by torque rheometer. The proportion of PVA, plasticizer, rotational speed, temperature. L16 （4^5） orthogonal experiment and DPS had been applied to study the torque performance. The results indicated that blends had a better property of torque rheologieal under the condition of speed 15r/min, temperature 170℃ and 20g glyeerine,5g sorbitol, 10g PVA per 100g starch. At the same time,the experimental factors interact effect were confirmed and discussed.

关 键 词：乙酰淀粉 PVA 转矩流变试验 增塑剂 正交试验 

分 类 号：TQ325.9[化学工程—合成树脂塑料工业]