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| 不同牌号丁苯橡胶的耐低温性能研究 |
| Study on Low Temperature Properties of Different Grades of Styrene Butadiene Rubber |
| Received:January 15, 2021 Revised:January 15, 2021 |
| DOI：10.12137/j.issn.2095-5448.2021.03.0117 |
| 中文关键词: 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 |
| 英文关键词: styrene butadiene rubber；rubber damping products；low temperature resistance；glass transition temperature；vulcanization characteristics；physical property；dynamic property |
| 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)。 |
| 中图分类号: |
| Author Name | Affiliation | E-mail | | FENG Lin-Zhao* | Beijing Institute of Aeronautical Materials,Beijing | flz010@163.com | | LAI Liang-Qing | Beijing Institute of Aeronautical Materials,Beijing | | | LI Hong-Bo | Beijing Institute of Aeronautical Materials,Beijing | | | SU Zheng-Tao | Beijing Institute of Aeronautical Materials,Beijing | | | LIU Jia | Beijing Institute of Aeronautical Materials,Beijing | |
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| 中文摘要: |
| 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，硫化胶的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，但是硫化胶的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。 |
| 英文摘要: |
| The vulcanization characteristics，physical properties and low temperature resistance of three brand 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 ℃，the Tg of vulcanizate was －59.8 ℃，it was suitable for use in extremely cold conditions.The Fmax－FL of SL-4525-0 compound was large，the tensile strength of vulcanizate was 19.3 MPa，the tear strength was 53 kN·m-1，the Tg of vulcanizate was －48.6 ℃，it 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 Tg of vulcanizate was －38.4 ℃，the low temperature resistance of 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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