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| 1670dtex/2 116EPD改性聚酯帘线在缺气保用轮胎胎体中的应用 |
| Application of 1670dtex/2 116EPD Modified Polyester Cord in Carcass of Run-flat Tire |
| Received:August 04, 2021 Revised:August 04, 2021 |
| DOI：10.12135/j.issn.1006-8171.2022.07.0428 |
| 中文关键词: 改性聚酯帘线；高模量低收缩聚酯帘线；缺气保用轮胎；胎体；尺寸稳定性；成品性能 |
| 英文关键词: modified polyester cord；high modulus and low shrinkage polyester cord；run-flat tire；carcass；dimensional stability；finished tire performance |
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| 中文摘要: |
| 研究1670dtex/2 116EPD改性聚酯帘线在225/55ZRF17 97W缺气保用轮胎胎体中的应用。结果表明：与普通高模量低收缩聚酯帘线相比，1670dtex/2 116EPD改性聚酯帘线的断裂强力增大，定负荷伸长率、断裂伸长率、捻度和干热收缩率减小，尺寸稳定性更好，可以使用现有设备生产且加工性能良好；成品轮胎的高速性能及在缺气行驶状态下的耐久性能提高。 |
| 英文摘要: |
| The application of 1670dtex/2 116EPD modified polyester cord in the carcass of 225/55ZRF17 97W run-flat tire was studied.The results showed that compared with ordinary high modulus and low shrinkage polyester cord，the breaking strength of modified polyester cord increased，the constant load elongation，elongation at break，twist and dry heat shrinkage decreased and the dimensional stability was better.It could be produced with existing equipment and had good processability.The high-speed performance and durability of the finished tire under the condition of lack of air were improved. |
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