受阻酚AO-80/羧基丁腈橡胶复合材料的形状记忆特性
制备了受阻酚AO-80/羧基丁腈橡胶(XNBR)复合材料,考察了AO-80用量对复合材料热性能和微观结构的影响,研究了不同AO-80用量和不同形变下复合材料的形状记忆特性.结果表明,随着受阻酚AO-80用量的增加,AO-80/XNBR复合材料的玻璃化转变温度(Tg)逐渐升高,添加100份AO-80时,复合材料的Tg由纯XNBR的-21.30℃升高至7.49℃;在AO-80/XNBR复合材料中,AO-80与XNBR之间形成大量的氢键,通过控制氢键网络强度可以调控材料的特征转变温度;AO-80/XNBR复合材料的形变固定率和形变回复率分别高于99%和89%,明显优于纯XNBR材料,在不同的形变下表...
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Published in | 合成橡胶工业 Vol. 38; no. 3; pp. 221 - 225 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
北京化工大学北京市新型高分子材料制备与加工重点实验室,北京,100029%北京化工大学有机无机复合材料国家重点实验室,北京,100029%北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029
2015
北京化工大学有机无机复合材料国家重点实验室,北京100029 |
Subjects | |
Online Access | Get full text |
ISSN | 1000-1255 |
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Summary: | 制备了受阻酚AO-80/羧基丁腈橡胶(XNBR)复合材料,考察了AO-80用量对复合材料热性能和微观结构的影响,研究了不同AO-80用量和不同形变下复合材料的形状记忆特性.结果表明,随着受阻酚AO-80用量的增加,AO-80/XNBR复合材料的玻璃化转变温度(Tg)逐渐升高,添加100份AO-80时,复合材料的Tg由纯XNBR的-21.30℃升高至7.49℃;在AO-80/XNBR复合材料中,AO-80与XNBR之间形成大量的氢键,通过控制氢键网络强度可以调控材料的特征转变温度;AO-80/XNBR复合材料的形变固定率和形变回复率分别高于99%和89%,明显优于纯XNBR材料,在不同的形变下表现出良好的形状记忆特性,且可重复性非常高. |
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Bibliography: | HU Shi-kai, CHEN Si, ZHAO Xiu-ying, LU Yong-lai, ZHANG Li-qun (1. Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials; 2. State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China) 62-1036/TQ The hindered phenol AO-80/carboxyl- ated nitrile rubber (XNBR) composites were pre- pared, and effects of AO-80 amount on the thermal property and microstructure of AO-80/XNBR com- posites were investigated, and shape memory effect of AO-80/XNBR composites was studied at different AO-80 amounts and different deformations. The re- suits showed that the glass transition temperature (Ts) increased with the increase of AO-80 amount, and the Ts of the AO-80/XNBR composites changed from -21.30 ℃ of pure XNBR to 7.49 ℃ when AO-80 was 100 phr. There was a large number of hydrogen bond between XNBR and AO-80 in AO-80/XNBR composites, and the characteristic transi- tion temperature of the composites could be adjusted by controlling the s |
ISSN: | 1000-1255 |