| 王巧平,黄义钢,王 君,赵晓东,张 静,王子琪.新型耐迁移大分子防老剂BH-F77在天然橡胶中的应用性能研究[J].轮胎工业,2025,(2):0106-0110 |
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| 新型耐迁移大分子防老剂BH-F77在天然橡胶中的应用性能研究 |
| Study on Application Performance of a New Type of Migration Resistant Macromolecular Antioxidant BH-F77 in NR |
| 投稿时间：2024-05-21 修订日期：2024-05-21 |
| DOI： |
| 中文关键词: 耐迁移大分子防老剂 天然橡胶 耐臭氧老化性能 耐迁移性能 |
| 英文关键词: migration resistant macromolecular antioxidan NR ozone aging property migration resistance property |
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| 中文摘要: |
| 研究新型耐迁移大分子防老剂BH-F77（简称防老剂BH-F77）在天然橡胶（NR）中的应用。结果表明：与传统防老剂6PPD相比，防老剂BH-F77的相对分子质量较高，热稳定性较好，金属元素种类较多且含量较高，耐迁移性能较优且不易变色；随着防老剂BH-F77用量的增大，NR胶料的流动性和加工安全性变差，硫化速度加快，硫化胶的邵尔A型硬度和100%定伸应力增大，拉伸强度和拉断伸长率减小，耐臭氧老化性能下降。 |
| 英文摘要: |
| The application performance of a new type of migration resistant macromolecular antioxidant BH-F77（abbreviation antioxidant BH-F77）in natural rubber（NR） was studied.The results showed that compared with traditional antioxidant 6PPD，antioxidant BH-F77 had a higher relative molecular weight，better thermal stability，more types and contents of metal elements，better migration resistance and less discoloration.As the dosage of antioxidant BH-F77 increased，the flowability and processing safety of NR compound were deteriorated，the vulcanization rate was accelerated，the Shore A hardness and modulus at 100% of the vulcanizate increased，the tensile strength and elongation at break reduced and the ozone aging resistance decreased. |
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