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| 偶联剂Si69用量对白炭黑胶料性能的影响 |
| Effect of Addition Level of Coupling Agent Si69 on Property of Silica Filled Compound |
| Received:September 18, 2018 Revised:September 18, 2018 |
| DOI：10.12135/j.issn.1006-8171.2019.11.0678 |
| 中文关键词: 偶联剂Si69；白炭黑；加工性能；硫化特性；毛细管挤出；Payne效应；损耗因子 |
| 英文关键词: coupling agent Si69；silica；processability；curing characteristics；capillary extrusion；Payne effect；loss factor |
| 基金项目: |
| 中图分类号: |
| Author Name | Affiliation | Postcode | | WANG Mao-ying* | EVE Rubber Institute CoLtd | 266045 | | LIU Zhen | EVE Rubber Institute CoLtd | | | JI Xin-yu | EVE Rubber Institute CoLtd | |
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| 中文摘要: |
| 研究偶联剂Si69用量对白炭黑胶料各项性能的影响。结果表明：随着偶联剂Si69用量的增大，混炼胶的门尼粘度减小，Payne效应降低，t90缩短；结合胶含量先迅速增大后略有下降，填料分散性提高；毛细管挤出胀大比增大，挤出表面变差；硫化胶的定伸应力增大，补强指数先增大后减小，偶联剂Si69用量为白炭黑用量的8%时补强指数最大；回弹值逐渐增大、压缩生热逐渐减小；磨耗指数先迅速增大后趋于稳定；60 ℃损耗因子最大值先迅速下降后上升，最终趋于稳定；偶联剂Si69用量为白炭黑用量的6%～8%时，胶料的综合性能最优。 |
| 英文摘要: |
| The effects of the addition level of coupling agent Si69 on the properties of silica compound was studied.The results showed that with the increasing of the addition level of coupling agent Si69，the Mooney viscosity of compound decreased，the Payne effect decreased，and t90 shortened.The content of bonded rubber increased rapidly to the maximum，then decreased slightly and the silica dispersion improved.But the capillary extrusion swell ratio increased，and the surface of extrusion became worse.The modulus of vulcanizate increased，the reinforcing index increased at first and then decreased，and the reinforcing index was the highest when the addition level of coupling agent Si69 was 8% of the addition level of silica.The rebound value increased gradually，and the compression heat build-up decreased gradually.The abrasion index first increased rapidly and then became stable.The maximum loss factor at 60 ℃ decreased rapidly first，and then ultimately tended to became stable.The comprehensive properties of the compound was the best when the addition level of coupling agent Si69 was 6%～8% of the addition level of silica. |
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