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理论与研究 尹佳杰 等·BR/SEBS 硫化胶的制备与性能研究

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Preparation and performance research of BR/SEBS vulcanizates

2
1
Yin Jiajie , Luo Zhonglin , Luo Faliang , Ma Qin , Lu Jing , Liu Yongdong 1
1
1
1*
(1.State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Yinchuan
750021, Ningxia, China;
2.Ningxia Shenzhou Tire Co. LTD., Pingluo 753400, Ningxia, China)
Abstract: In order to broaden the wider application of butadiene rubber (BR), develop modern high-
performance butadiene rubber composite materials. In this paper, hydrogenated SBS (SEBS) was used to
improve the tensile strength and tear strength of BR, and the effect of the change of SEBS content on the
properties of BR/SEBS combined adhesives was studied. The results show that the normal vulcanization time of
BR/SEBS compound rubber was reduced, and the cross-linking density was reduced. The Mooney viscosity was
the lowest when the SEBS content was 20 phr, and the tensile strength and tear strength of the corresponding
BR/SEBS vulcanizates were the best, respectively 1.8 times and 1.5 times that of BR vulcanizates. After hot air
aging, the tensile strength and tear strength of BR and BR/SEBS vulcanizates were reduced. But when the SEBS
content was higher than 20 phr, the tensile strength and tear strength of the aged BR/SEBS vulcanizate were
higher than that of the unaged BR vulcanizate.
Key words: butadiene rubber; hydrogenated SBS; tensile strength; tear strength; hot air aging
(R-03)

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2022 第 48 卷 ·35·