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| 钕系顺丁橡胶的微观结构和性能研究 |
| Study on Micro-structure and Properties of Nd-Butadiene Rubber |
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| DOI： |
| 中文关键词: 钕系顺丁橡胶 镍系顺丁橡胶 微观结构 相对分子质量分布 滚动阻力 抗湿滑性能 |
| 英文关键词: Nd-butadiene rubber Ni-butadiene rubber micro-structure molecular weight distribution rolling resistance wet-skid resistance |
| 基金项目: |
| 中图分类号:TQ333.2 |
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| 中文摘要: |
| 研究钕系顺丁橡胶（NdBR）的微观结构与性能，并与镍系顺丁橡胶（NiBR）对比。结果表明：与NiBR相比，NdBR的顺式-1，4-结构含量和重均相对分子质量较大，门尼粘度相近，与炭黑结合能力较强，硫化胶的强伸性能和弹性较好，压缩永久变形较小，生热和滚动阻力较低，抗湿滑性能较差；与中试NdBR2003相比，中试NdBR2012的相对分子质量分布较窄，混炼胶的硫化速度较快，硫化胶的强伸性能、弹性和耐屈挠性能较好，压缩永久形较小，生热和滚动阻力略低，抗湿滑性能稍差。 |
| 英文摘要: |
| The micro-structure and properties of Nd-butadiene rubber（NdBR） were investigated and compared with Ni-butadiene rubber（NiBR）．The results showed that compared with NiBR，the cis- 1，4-content and weight-average molecular weight of NdBR were higher，Mooney viscosity was similar， bonding with carbon black was stronger，tensile properties and resilience of the vulcanizate were better， permanent compression set was smaller，heat build-up and rolling resistance were lower，and wet-skid resistance was inferior. Compared with pilot-produced NdBR2003，the relative molecular weight distribution of pilot-produced NdBR2012 was narrower，cure rate of the NdBR2012 compound was faster，tensile properties，resilience and flex crack resistance of the vulcanizate were better，permanent compression set was smaller，heat build-up and rolling resistance were lower，and wet-skid resistance was slightly worse. |
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