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| 氢化丁腈橡胶/氢化羧基丁腈橡胶并用胶在汽车同步带中的应用研究 |
| Application of HNBR/HXNBR in Automotive Belt |
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| DOI： |
| 中文关键词: 氢化丁腈橡胶；氢化羧基丁腈橡胶；汽车同步带；过氧化二异丙苯；交联密度；粘合性能；混炼工艺 |
| 英文关键词: HNBR；HXNBR；automotive belt；dicumyl peroxide；crosslinking density；adhesion property；mixing process |
| 基金项目: |
| 中图分类号:TQ333.7；TQ336.2 |
| Author Name | Affiliation | | WANG Tengteng | Ningbo Yujiang Special Rubber Belts Co.，Ltd，Ningbo |
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| 中文摘要: |
| 研究氢化丁腈橡胶（HNBR）/氢化羧基丁腈橡胶（HXNBR）并用比、硫化剂过氧化二异丙苯（DCP）用量以及混炼工艺对汽车同步带胶料性能的影响。结果表明：随着HXNBR用量增大，胶料交联密度增大，耐热老化性能提高，尼龙帆布粘合力增大，有利于延长汽车同步带使用寿命；随着硫化剂DCP用量增大，胶料交联密度增大，拉伸强度和耐热老化性能先提高后降低；HNBR/HXNBR并用比为70/30、硫化剂DCP用量为7份时，胶料综合性能较好。采用开炼工艺和开炼/密炼工艺（排胶温度110 ℃）制备的胶料加工安全性能较好。 |
| 英文摘要: |
| In this study，the influence of blending ratio of HNBR and HXNBR，addition level of vulcanizing agent DCP，and mixing process on the properties of automotive belt compound was investigated.It was found that with increase of HXNBR amount，the crosslinking density of the vulcanizates increased，heat aging resistance was improved，and adhesion with nylon fabric increased，which could extend the service life of the automotive belt.With increase of DCP amount，the crosslinking density of the vulcanizates also increased，and the tensile strength and heat aging resistance increased first but dropped when DCP amount was high.In the optimized composition，the blending ratio of HNBR/HXNBR was 70/30 and the addition level of DCP was 7 phr.It was recommended to use open mill mixing process or integrated open mill/internal mixer mixing process with discharging temperature of 110 ?C in order to ensure good processing safety. |
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