| 高性能载重子午线轮胎天然橡胶/反式丁戊橡胶胎面胶的配方优化 |
| Formulation Optimization of NR/TBIR Tread Compound for High Performance Truck and Bus Radial Tire |
| 投稿时间：2019-07-10 修订日期：2019-07-10 |
| DOI：10.12136/j.issn.1000-890X.2020.09.0696 |
| 中文关键词: 天然橡胶 反式丁戊橡胶 载重子午线轮胎 胎面胶 高性能 配方优化 滚动阻力 |
| 英文关键词: NR TBIR truck and bus radial tire tread compound high performance formulation optimization rolling resistance |
| 基金项目: |
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| 中文摘要: |
| 研究高性能载重子午线轮胎天然橡胶（NR）/反式丁戊橡胶（TBIR）（并用比90/10）胎面胶的配方优化。结果表明，相比炭黑补强NR/TBIR并用胶，炭黑/白炭黑（并用比40/15）补强NR/TBIR并用胶的硬度、定伸应力、拉伸强度、撕裂强度和耐磨性能略有降低，抗湿滑性能保持不变，滚动阻力降低20%，压缩温升下降17%；在该配方基础上增大10%的促进剂和硫黄用量，得到优化配方。相比炭黑补强NR胎面胶，优化配方NR/TBIR胎面胶具有优异的力学性能和动态性能，在拉伸强度和抗湿滑性能基本不变的前提下，滚动阻力降低26%，压缩温升下降20%，耐磨性能提高5%。本优化配方适用于低滚动阻力高性能载重子午线轮胎胎面胶。 |
| 英文摘要: |
| The formulation optimization of natural rubber（NR）/trans-1，4-poly（butadiene-co-isoprene）rubber（TBIR）（blend ratio 90/10） tread compound for high performance truck and bus radial tire was studied.The results showed that，compared with carbon black reinforced NR/TBIR vulcanizates，the hardness，modulus，tensile strength，tear strength and abrasion resistance of carbon black/silica（blend ratio 40/15）reinforced NR/TBIR vulcanizates decreased little，the wet-skid resistance kept unchanged，the rolling resistance and heat built-up decreased 20% and 17% respectively.On the basis of this formulation，the optimized formulation was obtained by increasing the addition level of accelerator and sulfur by 10%.Compared with carbon black reinforced NR tread compound，the optimized formulation tread compound showed excellent mechanical and dynamic properties，i.e.under the condition of almost unchanging tensile strength and wet-skid resistance，rolling resistance and heat built-up decreasd by 26% and 20% respectively，and abrasion resistance improvd by 5%.This optimized formulation was suitable for the tread compound of high performance truck and bus radial tire with low rolling resistance. |
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