|本期目录/Table of Contents|

[1]李嘉豪,孙颖涛,陆 逊,等.压缩模式下乙烯-丙烯酸甲酯共聚物/丁腈橡胶热塑性硫化胶的形状记忆性能[J].合成橡胶工业,2021,6:468-473.
　LI Jia-hao,SUN Ying-tao,LU Xun,et al.Shape-memory properties of ethylene-methyl acrylate copolymer/nitrile rubber thermoplastic vulcanizates under compression mode[J].China synthetic rubber industy,2021,6:468-473.
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压缩模式下乙烯-丙烯酸甲酯共聚物/丁腈橡胶热塑性硫化胶的形状记忆性能(PDF)

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

期数:
2021年6期
页码:
468-473
栏目:
出版日期:
2021-11-10

文章信息/Info

Title:
Shape-memory properties of ethylene-methyl acrylate copolymer/nitrile rubber thermoplastic vulcanizates under compression mode
文章编号:
1000-1255（2021）06-0468-06
作者:
李嘉豪; 孙颖涛; 陆 逊; 王兆波*
青岛科技大学 材料科学与工程学院，山东 青岛 266042
Author(s):
LI Jia-hao; SUN Ying-tao; LU Xun; WANG Zhao-bo
(College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
关键词:
乙烯-丙烯酸甲酯共聚物; 丁腈橡胶; 热塑性硫化胶; 压缩模式; 形状记忆性能
Keywords:
ethylene-methyl acrylate copolymer;  nitrile rubber;  thermoplastic vulcanizate;  compression mode;  shape-memory property
分类号:
TQ 334.9
DOI:
10.19908/j.cnki.ISSN1000-1255.2021.06.0468
文献标识码:
B
摘要:
采用动态硫化法制备了乙烯-丙烯酸甲酯共聚物（EMA）/丁腈橡胶（NBR）热塑性硫化胶（TPV）（EMA/NBR TPV），研究了系列EMA/NBR TPV的动态力学性能和热稳定性，讨论了压缩模式下不同橡塑比、变形温度和回复温度对EMA/NBR TPV形状记忆性能的影响，观察其微观形貌并提出了形状记忆行为机制。结果表明，EMA/NBR TPV具有典型的"海-岛"结构，压缩后其内部存在明显的取向结构；动态热机械分析结果显示EMA和NBR具有良好的相容性；差示扫描量热结果显示EMA/NBR TPV熔融温度约为98 ℃；随着塑料相的增多，EMA/NBR TPV形状固定率升高、形状回复率降低，而橡胶相的增多则导致形状回复率升高、形状固定率降低；当变形温度为95 ℃、回复温度为100 ℃时，EMA/NBR TPV的形状记忆性能最好。
Abstract:
The ethylene-methyl acrylate copolymer (EMA)/nitrile rubber (NBR) thermoplastic vulcanizates (TPV) (EMA/NBR TPV) were prepared by dynamic vulcanization, the dynamic mechanical properties and thermal stability of EMA/NBRTPV were studied, the influence of mass ratio of EMA to NBR, deformation temperature and recovery tempe-rature on the shape memory properties of EMA/NBR TPV under compression mode were investigated syetematically.The microstructure of EMA/NBR TPV was observed and the mechanism of shape memory behavior was proposed.Experimental results showed that EMA/NBR TPV had a typical "sea-island" microstructure, and there was an obvious orientation microstructure on the fracture surface under compression mode; the result of dynamic mechanical analysis showed that EMA and NBR had well compatibility; the result of differential scanning calorimetry testing showed the melting temperature of EMA/NBR TPV was about 98 ℃; the shape fixity ratio of EMA/NBR TPV was increased and the shape recovery ratio was decreased with the increasingmass ratio of plastic phase, while the shape recovery ratio was increased and the shape fixity ratio of EMA/NBR TPV was decreased with the increasing mass ratio of rubber phase.When the deformation temperature was 95 ℃ and the recovery temperature was 100 ℃, EMA/NBR TPV had the best shape memory performance.

参考文献/References

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备注/Memo

备注/Memo:
收稿日期：2021-01-29；修订日期：2021-09-28。
作者简介：李嘉豪（1997—），男，山东威海人，硕士研究生。主要从事热塑性硫化胶方面的研究工作，已发表论文1篇。
基金项目：山东省自然科学基金资助项目（ZR 2017 MEM 021）。
*通讯联系人。
更新日期/Last Update: 2021-11-10