| 不同苯乙烯含量丁苯橡胶与天然橡胶并用的研究 |
| Study on Properties of Blends of NR and SBR with Different Styrene Content |
| 投稿时间：2018-11-12 修订日期：2018-11-12 |
| DOI：10.12136/j.issn.1000-890X.2019.11.0825 |
| 中文关键词: 天然橡胶 丁苯橡胶 高苯乙烯含量 并用胶 硫化特性 物理性能 阻尼性能 |
| 英文关键词: NR SBR high styrene content blend curing characteristics physical property damping propertyy |
| 基金项目: |
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| 中文摘要: |
| 将普通丁苯橡胶（SBR1，苯乙烯质量分数为0. 235）和高苯乙烯SBR（SBR2，苯乙烯质量分数为0. 68）分别与天
然橡胶（NR）并用，研究NR/SBR并用比和SBR苯乙烯含量对并用胶硫化特性、物理性能和阻尼性能的影响。结果表明：
随着SBR用量的增大，NR/SBR并用胶的硫化速度、拉伸强度和撕裂强度下降，NR/SBR1并用胶的滞后能量密度（HED）
先增大后减小，NR/SBR2并用胶的HED增大；NR/SBR并用比相同时，NR/SBR2并用胶的硫化速度、拉伸强度、拉断伸长
率和撕裂强度低于NR/SBR1并用胶；NR/SBR2并用胶的有效阻尼温域拓宽至高温区。 |
| 英文摘要: |
| The common styrene-butadiene rubber（SBR）（SBR1，styrene content was 0. 235）and high
styrene SBR（SBR2，styrene content was 0. 68）were blended with natural rubber（NR），respectively，and
the effects of blend ratio of NR/SBR and styrene content of SBR on the curing characteristics，physical
properties and damping properties of the blends were studied. The results showed that，with the increase of
SBR content，the curing rate，tensile strength and tear strength of NR/SBR blends decreased，the hysteresis
energy density（HED）of NR/SBR1 blends increased at first and then decreased，while the HED of NR/
SBR2 blends increased. At the same blend ratio of NR/SBR，the curing rate，tensile strength，elongation at
break and tear strength of NR/SBR2 blends were lower than those of NR/SBR1 blends，respectively，but the
effective damping temperature range of NR/SBR2 blends was extended to high temperature range. |
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