不同牌号丁苯橡胶的耐低温性能研究 |
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引用本文: | 冯林兆,赖亮庆,李红波,苏正涛,刘嘉.不同牌号丁苯橡胶的耐低温性能研究[J].橡胶科技,2021,19(3):0117-0120. |
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作者姓名: | 冯林兆 赖亮庆 李红波 苏正涛 刘嘉 |
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作者单位: | 北京航空材料研究院,北京航空材料研究院,北京航空材料研究院,北京航空材料研究院,北京航空材料研究院 |
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基金项目: | 国家配套资助项目(XXXX-16-020-5);民用飞机专项科研基金(MJ-2018-F-15)。 |
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摘 要: | 研究3种牌号丁苯橡胶(SKMS-10,SL-4525-0,SBR1502)的硫化特性、物理性能和耐低温性能。结果表明:SKMS-10具有优异的耐低温性能,生胶的玻璃化转变温度(Tg)为-73.3℃,硫化胶的Tg为-59.8℃,适于在极寒条件下使用;SL-4525-0胶料的Fmax-FL较大,硫化胶的拉伸强度为19.3 MPa,撕裂强度为53 kN·m-1,Tg为-48.6℃,具有优异的综合性能;SBR1502硫化胶的拉伸强度高达24.9 MPa,撕裂强度为49 kN·m-1,但Tg为-38.4℃,耐低温性能较差,适用于载荷较大且耐低温性能要求不高的橡胶减振制品。
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关 键 词: | 丁苯橡胶 橡胶减振制品 耐低温性能 玻璃化转变温度 硫化特性 物理性能 动态性能 |
收稿时间: | 2021/1/15 0:00:00 |
修稿时间: | 2021/1/15 0:00:00 |
Study on Low Temperature Properties of Different Grades of Styrene Butadiene Rubber |
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Authors: | FENG Lin-Zhao LAI Liang-Qing LI Hong-Bo SU Zheng-Tao and LIU Jia |
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Affiliation: | Beijing Institute of Aeronautical Materials,Beijing,Beijing Institute of Aeronautical Materials,Beijing,Beijing Institute of Aeronautical Materials,Beijing,Beijing Institute of Aeronautical Materials,Beijing,Beijing Institute of Aeronautical Materials,Beijing |
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Abstract: | The vulcanization characteristics,physical properties and low temperature resistance of three brands of styrene butadiene rubber(SKMS-10,SL-4525-0,SBR1502)were investigated.The results showed that SKMS-10 had excellent low temperature resistance,the glass transition temperature(Tg)of raw rubber was-73.3℃,and the Tgof the vulcanizate was-59.8℃,which was suitable for use in extremely cold conditions.The Fmax-FL of SL-4525-0 compound was large,the tensile strength of the vulcanizate was 19.3 MPa,the tear strength was 53 kN·m-1,and the Tgof the vulcanizate was-48.6℃,which had good comprehensive properties.The tensile strength and tear strength of SBR1502 vulcanizate were 24.9 MPa and 49 kN·m-1 respectively,but the Tgof the vulcanizate was-38.4℃,indicating that the low temperature resistance of the vulcanizate was poor,so SBR1502 was suitable for rubber damping products with requirements of high load and moderate low temperature resistance. |
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Keywords: | styrene butadiene rubber rubber damping product low temperature resistance glass transition temperature vulcanization characteristics physical property dynamic property |
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