| 工程车辆翻新轮胎补强剂性能补强试验及机理 |
| Performance Reinforcement Test and Mechanism of the Reinforcement Agent for Engineering Vehicle Refurbished Tires |
| 投稿时间：2017-09-21 修订日期：2017-09-21 |
| DOI： |
| 中文关键词: 工程翻新轮胎 补强剂 炭黑 白炭黑 补强机理 |
| 英文关键词: Engineering refurbished tire Reinforcement agent Carbon black White carbon black Reinforcement mechanism |
| 基金项目:黑龙江省自然科学基金(E2015025)；哈尔滨市青年后备人才研究专项基金(2016RAQXJ053)；黑龙江工程学院博士基金(2015BJ05)。 |
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| 中文摘要: |
| 为了改善工程车辆翻新轮胎在使用中经常出现胎面不耐磨、易崩花掉块的损坏形式,将炭黑、白炭黑作为补强剂加入到胎面基体配方中,通过改变用量及加料顺序,对三种不同配方体系下的胎面进行拉伸强度、撕裂强度、300%定伸应力、拉断伸长率、耐磨指数、硬度及炭黑分散度扫描等物理机械性能进行测试,获得了如下主要结论：单一炭黑配方体系中,当炭黑N151质量份为40,混合配方体系中,当炭黑N330质量份为40、白炭黑质量份为20时,性能补强效果较为理想,耐磨性及抗崩花掉块性能大大提高。应用分子链滑动理论解释了炭黑的补强机理,炭黑颗粒与橡胶分子链之间需要保持一个合适的吸附比表面积,需要炭黑含量达到一个最佳值,炭黑含量过低,橡胶分子链不能紧密融合,炭黑含量过高,会导致炭黑颗粒间空隙小,同样橡胶分子链不能有效融合,补强效果不理想。 |
| 英文摘要: |
| In order to improve wear-resisting performance and the damage of crash and block of the tire tread during usage of engineering vehicle refurbished tire, after the carbon black and white carbon black as reinforcing agent were added to tread substrate formula, treads under three different formulas were processed for physical and mechanical property tests, such as: tensile strength, tear strength, 300% stretch stress, tensile elongation, wear resistance index, hardness and carbon black dispersion scanning and so on, by changing the dosage and loading sequence. The following main conclusions are obtained: in the single carbon black formula system, when quality of carbon black N151 was 40 and in the mixed formula system, when the quality of carbon black N330 was 40, quality of white carbon black was 20, the effect of performance reinforcement was more ideal, performance of wearing resistance and anti-crash and block were greatly increased. In this paper, the theory of molecular chain sliding explained the reinforcement mechanism of carbon black, it was necessary to maintain a suitable adsorption ratio surface area between the carbon black particles and the rubber molecular chain which the amount of carbon black was required for the best value. Because if the carbon black content was too low, the rubber chain could not be closely integrated, and if the carbon black content was too high, this could lead to the small space between the carbon black particles, which in the same way, rubber chain could not be integrated effectively, the reinforcement effect was not ideal. |
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