| 丁苯橡胶胶料损耗因子的影响因素研究 |
| Study on Factors Affecting Loss Factor of SBR Compound |
| 投稿时间：2019-09-12 修订日期：2019-09-12 |
| DOI：10.12136/j.issn.1000-890X.2020.05.0330 |
| 中文关键词: 丁苯橡胶 损耗因子 白炭黑 偶联剂Si69 增塑剂 硫化体系 粘合剂 |
| 英文关键词: SBR loss factor silica coupling agent Si69 plasticizer curing system binder |
| 基金项目: |
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| 中文摘要: |
| 使用RPA2000橡胶加工分析仪，研究偶联剂Si69用量、白炭黑用量、增塑剂种类、硫化体系和粘合剂RH对丁苯橡胶（SBR）胶料损耗因子（tanδ）的影响。结果表明，加入偶联剂Si69能够减小胶料的tanδ，且偶联剂Si69的最佳用量为白炭黑用量的10%。当白炭黑用量不大于40份、应变小于1%时，随着白炭黑用量的增大，胶料的tanδ减小；白炭黑用量不大于40份、应变大于1%时，随着白炭黑用量的增大，胶料的tanδ增大；当白炭黑用量大于40份时，胶料的tanδ急剧增大。加入不同种类的增塑剂均可使胶料的tanδ增大，其中加入石蜡油的胶料的tanδ比加入白油膏和古马隆树脂的胶料小。随着硫黄用量的增大，硫黄硫化体系胶料的tanδ先减小后增大，硫黄用量为2份时胶料的tanδ最小；硫黄与过氧化物并用硫化体系的胶料的tanδ比单用硫黄胶料小，且随着硫化剂双25用量的增大，胶料的tanδ减小。加入粘合剂RH可减小胶料的tanδ。 |
| 英文摘要: |
| Using rubber processing analyzer RPA2000，the effects of the amount of coupling agent Si69，the amount of silica，the type of plasticizer，curing system and binder RH on the loss factor（tanδ）of SBR compound were studied. The results showed that，addition of coupling agent Si69 could reduce the tanδ of the rubber compound，and the optimum amount of coupling agent was 10% of the amount of silica.When the amount of silica was within 40 phr and the strain was less than 1%，tanδ of the rubber compound decreased with the increase of the amount of silica. But when the strain was over 1%，the tanδ increased with the increase of silica amount. When the amount of silica was more than 40 phr，tanδ of the rubber compound increased sharply. The tanδ increased with use of plasticizers，and it was smaller with paraffin oil than that with white ointment or coumarone-indene resin. With the increase of the amount of sulfur，tanδ of the rubber compound cured with sulfur curing system alone decreased first and then increased，and it reached the minimum value when the amount of sulfur was 2 phr. The tanδ of the rubber compound with sulfur and peroxide combined curing system was smaller than that with sulfur alone，and it decreased with the increase of the amount of DPBMH. Addition of binder RH could reduce tanδ of the rubber compound. |
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