胡椒酸苯甲酰肼对聚L-乳酸熔融行为和热稳定性的影响  

Effect of N'-benzoic piperonylic acid hydrazide on melting behavior and thermal stability of poly(L-lactic acid)

作　　者：杨晓宇[1] 马晓丽[1] 栗昇[1] 李星海[1] YANG Xiao-yu;MA Xiao-li;LI Sheng;LI Xing-hai(Inner Mongolia Vocational College of Chemical Engineering,Hohhot 010070,China)

机构地区：[1]内蒙古化工职业学院,内蒙古呼和浩特010070

出　　处：《精细与专用化学品》2022年第11期39-41,共3页Fine and Specialty Chemicals

基　　金：内蒙古自治区高等学校科研一般项目(NJZY21351);内蒙古化工职业学院科研一般项目(HYZRYB2005)。

摘　　要：为改善聚L-乳酸(PLLA)结晶性能差的缺陷,合成了一种新型成核剂胡椒酸苯甲酰肼(PABH),通过熔融共混技术制备了胡椒酸苯甲酰肼改性聚乳酸材料(PLLA/PABH),研究了PABH对PLLA熔融行为和热稳定性的影响。结果表明,PABH对PLLA的结晶有明显的成核作用,结晶温度和PABH的含量对PLLA的熔融行为会产生显著影响。PABH的加入可降低PLLA的热稳定性,但不会改变PLLA的热分解轮廓曲线。To improve the poor crystallization of poly(L-lactic acid)(PLLA),a new nucleating agent N'-benzoic piperonylic acid hydrazide(PABH)was synthesized.And the PABH-nucleated PLLA was prepared through melting blend technology.The effect of PABH on the melting behavior and thermal stability of PLLA was studied.The results showed that PABH had obvious nucleation effect on the crystallization of PLLA.Additionally,both the crystallization temperature and PABH concentration affected the melting behavior of PLLA.The introduction of PABH decreased the thermal stability of PLLA,and the thermal decomposition profile of PLLA was not changed.

关 键 词：聚L-乳酸 胡椒酸 成核剂 熔融行为 热性能 

分 类 号：TQ322[化学工程—合成树脂塑料工业]