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| NR/SBR内胎胶配方的改进 |
| Modification of NR/SBR Formulation for Inner Tube |
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| DOI： |
| 中文关键词: 天然橡胶 丁苯橡胶 内胎 耐热老化性能 |
| 英文关键词: natural rubber styrene butadiene rubber inner tube thermal aging resistance |
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| 中文摘要: |
| 对天然橡胶（NR）/丁苯橡胶（SBR）内胎胶配方进行调整：降低NR用量比例，调整补强体系和硫化体系。结果表明：NR/SBR并用比由60/40减小到50/50，胶料的门尼粘度较大，焦烧时间较长，加工安全性较好，热老化后性能下降率低，其他性能差异不大；成品内胎的耐热老化后性能明显改善，生产成本降低。 |
| 英文摘要: |
| In this paper， the formulation of inner tube compound based on the blend of natural rubber (NR) / styrene-butadiene rubber (SBR) was modified by reduction of NR content， and adjustment on the reinforcement system and curing system. The results showed that， when the ratio of NR/SBR was reduced from 60/40 to 50/50， there was no loss on the physical properties and improvement on the processing properties was achieved.For
example， the Mooney viscosity increased， the scorch time was extended， the processing safety was improved. Thethermal aging properties of the finished inner tube were improved significantly and the cost of production was reduced. |
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