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| 储存时间对丁腈橡胶性能的影响 |
| Effect of Storage Time on Properties of Nitrile-Butadiene Rubber |
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| DOI： |
| 中文关键词: 丁腈橡胶；储存时间；凝胶含量；门尼粘度；耐低温性能 |
| 英文关键词: nitrile-butadiene rubber；storage time；gel content；Mooney viscosity；low temperature resistance |
| 基金项目: |
| 中图分类号:TQ333.7 |
| Author Name | Affiliation | | ZHANG Yuanshou | CNPC Lanzhou Petrochemical Research Institute | | HU Haihua | CNPC Lanzhou Petrochemical Research Institute | | ZHAO Hongguo | CNPC Lanzhou Petrochemical Research Institute | | ZHOU Lei | CNPC Lanzhou Petrochemical Research Institute | | WU Yu | CNPC Lanzhou Petrochemical Research Institute |
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| 中文摘要: |
| 研究储存时间对丁腈橡胶（NBR）性能的影响。结果表明：随着NBR储存时间的延长，其生胶的门尼粘度降低，凝胶含量增大，胶料的硬度、撕裂强度和耐油性能变化不大；NBR储存时间超过2年后，其生胶的凝胶含量迅速增大，胶料的焦烧时间缩短，拉伸强度和拉断伸长率大幅降低，耐低温性能略有降低。NBR的储存时间不宜超过2年。 |
| 英文摘要: |
| The effect of storage time on the properties of nitrile-butadiene rubber（NBR）was studied. The results showed that，with the extension of storage time，the Mooney viscosity of raw rubber decreased， gel content increased，and the hardness，tear strength and oil resistance of the compounds changed little. When the storage period was more than two years，the gel content of raw rubber increased rapidly，the scorch time of the compounds was shortened，the tensile strength and elongation at break were reduced greatly，and low temperature resistance decreased slightly. The storage time of NBR should not exceed two years. |
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