| 蓝晶石尾矿对丁苯橡胶胶料性能的影响 |
| Effects of Kyanite Tailings on Properties of SBR Compounds |
| 投稿时间：2021-04-12 修订日期：2021-04-12 |
| DOI：10.12136/j.issn.1000-890X.2022.12.0910 |
| 中文关键词: 丁苯橡胶 蓝晶石尾矿 粒径 改性 硫化特性 物理性能 断面形貌 |
| 英文关键词: Kyanite tailings SBR Modification Mechanical property |
| 基金项目: |
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| 中文摘要: |
| 研究蓝晶石尾矿粒径和改性对丁苯橡胶（SBR）胶料性能的影响。结果表明：随着蓝晶石尾矿粒径[D90（累计分布达到90%的粒径）]减小，SBR胶料的FL，Fmax和Fmax－FL增大，SBR硫化胶的质量损失率为5%和50%时的热分解温度提高以及热分解温度为700 ℃时的质量保持率增大；各改性剂（棕榈酸、偶联剂KH-550、铝酸酯和硬脂酸）改性蓝晶石尾矿（粒径为2. 75 μm）的SBR硫化胶的300%定伸应力、拉伸强度和撕裂强度增大，其中偶联剂KH-550改性蓝晶石尾矿的SBR硫化胶的300%定伸应力、拉伸强度和撕裂强度最大，分别为5. 8 MPa，7. 1 MPa和24 kN·m-1；偶联剂KH-550改性蓝晶石尾矿与SBR的粘结较好，其SBR硫化胶的撕裂断面较为粗糙、致密。 |
| 英文摘要: |
| The effects of the particle size and modification of kyanite tailings on properties of styrene
butadiene rubber （SBR） compounds were studied. The results showed that with the decrease of kyanite
tailings particle size[D90（the cumulative distribution particle size of 90%）]，the FL，Fmax and FL － Fmax of
SBR compound increased，the thermal decomposition temperatures of SBR vulcanizate at 5% and 50% mass
loss rates and the mass retention rate at 700 ℃ were improved. The tensile stress at 300% elogation，tensile
strength and tear strength of SBR vulcanizate with kyanite tailings（particle size was 2. 75 μm） modified
by various modifiers（palmitic acid，coupling agent KH-550，aluminate and stearic acid） increased，and the
tensile stress at 300% elongation，tensile strength and tear strength of SBR vulcanizate with kyanite tailings
modified by coupling agent KH-550 were the highest，which were 5. 8 MPa，7. 1 MPa and 24 kN·m-1，
respectively. Kyanite tailings modified by coupling agent KH-550 had better bonding with SBR，and the tear
section of the SBR vulcanizate was rough and dense. |
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