| 氯化丁基橡胶/天然橡胶共混物性能的研究 |
| Study on Properties of CIIR/NR Blend |
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| DOI： |
| 中文关键词: 氯化丁基橡胶 天然橡胶 共混物 硫化体系 耐热氧老化 |
| 英文关键词: CIIR NR blend curing system heat-oxygen age stability |
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| 摘要点击次数: 873 |
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| 中文摘要: |
| 研究了共混比及硫化体系对氯化丁基橡胶（CIIR）/天然橡胶（NR）共混物性能的影响，探讨了老化温度及防老剂对氧化锌/促进剂TMTD/促进剂DM硫化体系硫化的CIIR/NR共混物耐热氧老化性能的影响。试验结果表明，氧化锌/促进剂TMTD/促进剂DM（5.0/1.5/1.0）硫化体系硫化的CIIR/NR共混物的拉伸强度和扯断伸长率与按共混比计算的平均值差别较小，尤其是拉伸强度与计算值完全一致。当共混物中CIIR用量超过50份时，共混物的耐热氧老化性能明显改善。不同防老剂对CIIR/NR（50/50）共混物热氧老化的防护效能大小顺序为RD及4010>401ONA>MB>D。防老剂RD先加人到NR中后再与CIIR共混，其防护效能更佳。 |
| 英文摘要: |
| The influence of the blend ratio and the curing system on the properties of CIIR/NR blend was studied and the influence of the temperature during ageing and the antioxidant on the heat-oxygen age stability of CIIR/NR blend cured with ZnO/TMTD/MBTS was discussed.The test results showed that not much difference between the measured tensile strength and elongation at break and the calculated ones based on the blend ratio was found for the CIIR/NR blend cured with ZnO/TMTD/MBTS（5.0/1.5/1.0）.When the content of CIIR exceeded 50 phr，the heat-oxygen age stability of the blend would be significantly improved.The order of the heat-oxygen age stability provided by various antioxidants to the CIIR/NR（50/50） blend was as follows： RD>4010NA>MB>D.The protective efficiency would be better when RD was added into NR before NR was blended with CIIR. |
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