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《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:

2022年5期

页码:

370-375

栏目:

出版日期:

2022-09-15

文章信息/Info

Title:

Effect of compatibilizers on properties of silicone rubber/thermoplastic polyurethane thermoplastic vulcanizates

文章编号:

1000-1255（2022）05-0370-05

作者:

崔子文; 景元蓉; 刘广永; 杜爱华?鄢

青岛科技大学 橡塑材料与工程教育部重点实验室， 山东 青岛 266042

Author(s):

CUI Zi-wen;  JING Yuan-rong;  LIU Guang-yong;  DU Ai-hua

Key Laboratory of Rubber-Plastics of Ministry of Education, Qingdao University of Science and Technology, Qingdao 266042, China

关键词:

热塑性硫化胶; 动态硫化; 甲基乙烯基硅橡胶; 热塑性聚氨酯; 增容剂; 力学性能

Keywords:

thermoplastic vulcanizate;  dynamic vulcanization;  methyl vinyl silicone rubber;  thermoplastic polyurethane;  compatibilizer;  mechanical property

分类号:

TQ 333.93

DOI:

DOI:10.19908/j.cnki.ISSN1000-1255.2022.05.0370

文献标识码:

B

摘要:

采用动态硫化法制备了甲基乙烯基硅橡胶（MVQ）/热塑性聚氨酯（TPU）共混型热塑性硫化胶（TPV），考察了增容剂的种类及用量对TPV力学性能及加工流变性能的影响。结果表明，随着增容剂用量的增加，TPV的力学性能呈先上升后下降的趋势。相比于乙烯丙烯酸共聚物和乙烯与乙酸乙烯嵌段共聚物，用聚烯烃弹性体接枝马来酸酐（POE-g-MAH）作为增容剂时TPV的力学性能更为优异。3种增容剂均能提高TPV中MVQ相与TPU相的相容性。当POE-g-MAH的用量为6份时，TPV中MVQ相与TPU相的玻璃化转变温度靠近程度最大，两相界面较为模糊，增容效果最佳。

Abstract:

Methyl vinyl silicone rubber (MVQ)/thermoplastic polyurethane (TPU) blend thermoplastic vulcanizate (TPV) was prepared by dynamic vulcanization. The effects of type and amount of compatibilizers on mechanical properties and rheological properties of TPV were investigated. The results showed that the mechanical properties of TPV increased firstly and then decreased with the increase of compatibilizer amount. The mechanical properties of TPV were better when polyolefin elastomer grafted maleic anhydride (POE-g-MAH) was used as compatibilizer compared to ethylene acrylic copolymer and ethylene and vinyl acetate block copolymer. And all three kinds of compatibilizers could improve the compatibility of MVQ phase with TPU phase in TPV. When the amount of POE-g-MAH was 6 phr, the glass transition temperature of MVQ phase and TPU phase in TPV was the closest, the interface between the two phases was blurred and the capacitance effect was the best.

参考文献/References

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备注/Memo

备注/Memo:

山东省重点研发计划项目（2019 GSF 109025）。

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更新日期/Last Update: 2022-09-15