| 预交联型CR拉伸强度的研究 |
| Study on Tensile Strength of Precrosslinked CR |
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| DOI： |
| 中文关键词: CR 预交联 拉伸强度 硫化促进剂 |
| 英文关键词: CR precrosslink tensile strength accelerator |
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| 中文摘要: |
| 研究了预交联型CR溶胶组分的门尼粘度、凝胶组分所占比例以及硫化促进剂种类对其硫化后拉伸强度的影响。试验结果表明，随着溶胶组分门尼粘度的降低以及凝胶组分所占比例的增大，其拉伸强度下降；采用1～2份三亚乙基二胺替代亚乙基硫脲作硫化促进剂，并添加2份防老剂，可使预交联型CR拉伸强度大大提高。 |
| 英文摘要: |
| The influence of the sol Mooney viscosity，the gel proportion and the accelerator type on the tensile strength of precrosslinked CR vulcanizate was studied.The results showed that the tensile strength of the precrosslinked CR vulcanizate decreased with the decrease of sol Mooney viscosity and the increase of gel proportion；the tensile strength improved significantly by adding 2 phr of antioxidant and using 1～2 phr of triethylene diamine instead of ethylene thiourea as accelerator. |
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