| 重型载重轮胎专用天然橡胶的优选 |
| Optimization of Specialized NR for Heavy-Duty Truck Tires |
| 投稿时间：2024-12-16 修订日期：2024-12-16 |
| DOI：10.12136/j.issn.1000-890X.2026.08.0580 |
| 中文关键词: 重型载重轮 天然橡胶 加工工艺 硫化特性 力学性能 |
| 英文关键词: heavy-duty truck tire NR process vulcanization characteristic mechanical property |
| 基金项目: |
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| 中文摘要: |
| 研究重型载重轮胎专用天然橡胶（NR）的优选。采用新型加酶凝固工艺制备NR，即采用加酶凝固＋造粒＋低温干燥工艺制备NR（M）和加酶凝固＋造粒＋双螺杆挤出机挤出脱水工艺制备NR（J）。试验结果表明，与传统加酸凝固工艺制备的NR（SCR20和SCRWF）相比，加酶凝固工艺制备的M胶料的t90最短，M硫化胶的炭黑分散性最好，300%定伸应力和拉伸强度最大，阿克隆磨耗量和DIN磨耗量最小，压缩温较低，耐屈挠性能和耐热氧老化性能最好，0 ℃时的tanδ最大，抗湿滑性能最好。M更适合用作重型载重轮胎的生产用胶。 |
| 英文摘要: |
| The optimization of specialized natural rubber（NR） for heavy-duty truck tires was studied.The novel enzyme coagulation processes were used to prepare NR，namely enzyme coagulation＋
granulation＋low temperature drying process was used to prepare NR（M） and enzyme coagulation＋
granulation＋twin screw extrusioner dewatering process was used to prepare NR（J）.The test
results showed that，compared with NR（SCRWF and SCR20） prepared by traditional acid coagulation process，the t90 of M compound was the shortest，the carbon black dispersion of M vulcanizate was the best，the modulus at 300% elongation and tensile strength were the maximum，the Akron and DIN abrasion losses were the minimum，compression temperture rise was lower，flex resistance and thermo-oxidative aging resistance were the optimum，the tanδ of M vulcanizate at 0 °C was the maximum，indicating superior wet skid resistance.M was more suitable for using as production rubber for heavy-duty truck tires. |
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