第 35 卷第 1 期 Vol. 35 No. 1 2005 年 2 月 Feb 2005

所属栏目：其它 聚丙烯透明改性剂的合成及分离纯化研究

禹练英(湖南化工职业技术学院; 湖南株洲)

摘　要：利用正交试验法对DBS的合成及纯化条件进行了优化,得出了优惠工艺条件:原料中苯甲醛与山梨醇摩尔比2.2∶1.0,环己烷与甲醇体积比为 70∶30,搅拌速率和反应时间分别是450 rpm和5 h,在此条件下合成DBS,并用环己烷/丙酮混合溶剂提纯,可以得到99%DBS,其收率达到82.9%。

关键词：聚丙烯（PP）; 增透剂; 二亚苄基山梨糖醇（DBS）

中图分类号：TQ223.1　　文献标识码：A　　文章编号：1009-9212(2005)01-0047-03

Synthesis and Separate-purification of Clarity Modifier of Polypropylene

YU Lian-ying （Hunan Chemical Industry Professional Technology College; Zhuzhou 412004; China）

Abstract：Dibenzylidene sorbitol( DBS) was synthesized and puried using orthogonal experiment method ,The optimum condition as follows: the mole proportion of benzaldehyde and sorbitol is 2.2∶1.0, the volume proportion of cyclohexane and methanol is 70∶30, and rate of mix round 450rpm,reaction time 5 h, in this condition, DBS was purified in the mixture of cyclohexane and propanone, and highpurity DBS was gotten, the recovery rate was 82.9%.

Key words：polypropylene; antireflectical agent; dibenzylidene sorbitol

收稿日期：2004-09-10

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