|本期目录/Table of Contents|

[1]李志成,肖建斌?鄢.共混比对乙丁橡胶/丁腈橡胶共混胶性能的影响[J].合成橡胶工业,2024,3:262-267.
 LI Zhi-cheng,XIAO Jian-bin.Effect of blending ratios on properties of ethylene-butadiene-(5-ethylidene-2-norbornene) terpolymer/nitrile rubber blends[J].China synthetic rubber industy,2024,3:262-267.
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共混比对乙丁橡胶/丁腈橡胶共混胶性能的影响(PDF)

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

期数:
2024年3期
页码:
262-267
栏目:
出版日期:
2024-05-15

文章信息/Info

Title:
Effect of blending ratios on properties of ethylene-butadiene-(5-ethylidene-2-norbornene) terpolymer/nitrile rubber blends
文章编号:
1000-1255(2024)03-0262-06
作者:
李志成肖建斌?鄢
(青岛科技大学 高分子科学与工程学院,山东 青岛 266042)
Author(s):
LI Zhi-cheng XIAO Jian-bin
(School of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
关键词:
丁腈橡胶乙丁橡胶共混胶物理机械性能压缩永久变形耐老化性能耐低温性能耐油性能
Keywords:
nitrile rubber ethylene-butadiene-(5-ethylidene-2-norbornene) terpolymer blend physical and mechanical property compression set aging resistance low temperature resistance oil resistance
分类号:
TQ 333.7
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2024.03.0262
文献标识码:
B
摘要:
采用共混法制备了乙丁橡胶(EBT)/丁腈橡胶(NBR)共混胶,研究了不同共混比对其硫化特性、物理机械性能、压缩永久变形、耐老化性能、耐低温性能、玻璃化转变温度及耐油性能的影响。结果表明,随着EBT用量的增加,共混胶的拉伸强度、撕裂强度和扯断伸长率均逐渐降低,而硬度和定伸应力则逐渐升高,压缩永久变形逐渐变大;随着EBT用量的增加,共混胶的耐热空气老化性能呈现先降低后升高的趋势,耐臭氧老化性能得到改善,耐低温性能提升,但耐油性能下降;当m(EBT)/m(NBR)为30/70时,共混胶综合力学性能和耐油性能稍有下降,但耐低温性能和耐臭氧老化性能明显提升。
Abstract:
Ethylene-butadiene-(5-ethylidene-2-norbornene) terpolymer (EBT)/nitrile rubber (NBR) blends were prepared by blending method, and the effects of different blending ratios on curing characteristics, physical and mechanical properties, compression set, aging resistance, low temperature resistance, glass transition temperature and oil resistance of EBT/NBR blends were studied. The results indicated that with the increase of EBT content, tensile strength, tear strength and elongation at break of the blends decreased gradually, while hardness and modulus increased gradually, and compression set got larger gradually. With the increase of EBT content, the hot-air aging resistance of the blends showed a trend of first decreasing and then increa-sing with improved ozone aging resistance and better low temperature resistance, but the oil resistance decreased. When m(EBT)/m(NBR) was 30/70, the comprehensive mechanical properties and oil resistance of the blend decreased slightly, but the low temperature resistance and ozone aging resistance improved significantly.

参考文献/References

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备注/Memo

备注/Memo:
更新日期/Last Update: 1900-01-01