摘要
用力学性能测试、ＤＭＡ、ＳＥＭ等方法研究了离聚物Ｓｕｒｌｙｎ对ＰＢＴ／ＰＰ共混体系的力学性能及形态结构的影响。结果表明，在ＰＢＴ／ＰＰ共混体系中引入少量Ｓｕｒｌｙｎ可以改善界面的粘接性，从而改善其力学性能。当共混体系中ＰＢＴ／ＰＰ的组份比不变（９０／１０）且Ｓｕｒｌｙｎ的含量为６ｐｈｒ左右时，共混物的冲击强度出现极大值；而弯曲强度在Ｓｕｒｌｙｎ含量为１－２ｐｈｒ左右时有最大值。当共混体系中Ｓｕｒｌｙｎ的含量不变（６ｐｈｒ）时，其力学性能随ＰＰ含量的增加而下降。用玻璃纤维增强共混体系，可显著提高力学性能。
The effect of an ionomer Surlyn 9020 on the morphology and mechanical properties of poly(butylene terephthalate) (PBT)/polypropylene (PP) was investigated by DMA, SEM etc. The adhesion between PBT and PP was improved with the addition of Surlyn leading to the improvement of the mechanical properties of the blends. When PBT/PP ratio was constant (90/10), the impact strenth of the blends was maximum at 6 phr Surlyn content and the flexural strenth got the maximum value at 1-2 phr Surlyn content. Moreover, the mechanical properties of PBT/PP/Surlyn blends were further enhanced by the reinforcement of glass fibre. And the alloys can come with use in the field of engineering plastics.
出处
《功能高分子学报》
CAS
CSCD
1997年第4期498-502,共5页
Journal of Functional Polymers
关键词
PBT
PP
离聚物Surlyn
共混
力学性能
Poly(butylene terephthalate), Polypropylene, Ionomer, Blend, Mechanical properties
