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<p>Polyester (PET)-based fabrics have been greatly required with the development of industrial automation, especially as a kind of high-strength conveyor belts. Meanwhile, it is better for PET fabrics to melt and break when subjected to long-term high-temperature use without causing spontaneous combustion, thus ensuring its safety. Herein, to investigate the high-temperature melting and breaking properties of modified PET fabrics, PET fabrics were impregnated with resorcinol–formaldehyde-neoprene latex (RF-CRL) by a simple dip-coating method and RF-CRL/PET composites were correspondingly prepared. The effect of aging time and aging temperature on the tensile properties of RF-CRL/PET composites were studied. Simultaneously, limiting oxygen index (LOI) and thermal stabilities of the modified PET fabrics were revealed. The results showed that the RF-CRL/PET composite possessed excellent high-temperature melting and breaking properties. Before 190 ℃, RF-CRL/PET composite showed excellent tensile properties at different aging time of 10&#xa0;min, 20&#xa0;min and 30&#xa0;min. Above 200&#xa0;℃, the tensile fracture force of the composite decreased obviously especially at 220&#xa0;℃ when aged for 30&#xa0;min, which showed that the prepared RF-CRL/PET exhibited excellent melting and breaking feature. Meanwhile, LOI of aged RF-CRL/PET composite was 22.5 and no melting droplet was observed compared to pure PET fabric, which was beneficial for the melting and breaking of modified PET fabrics during practical use, and no further danger would be caused. Moreover, RF-CRL/PET composite showed excellent thermal stabilities after aging. This work offers a valuable reference to endow PET fabrics with both excellent melting and breaking properties during long-time service.</p>

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Tensile Properties and Flammability of Neoprene Latex Modified PET-Fabrics After Aging at Elevated Temperature

  • 期刊论文

  • 发表日期：

    2025年11月25日

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  • Yanxia Xie,
  • Yaning Xu,
  • Junjie Zhu,
  • Zihao Zhou,
  • Jie Shi,
  • Aimin Yan,
  • Wentao Zhu,
  • Lihua Zou,
  • Hong-mei Zuo

摘要

Polyester (PET)-based fabrics have been greatly required with the development of industrial automation, especially as a kind of high-strength conveyor belts. Meanwhile, it is better for PET fabrics to melt and break when subjected to long-term high-temperature use without causing spontaneous combustion, thus ensuring its safety. Herein, to investigate the high-temperature melting and breaking properties of modified PET fabrics, PET fabrics were impregnated with resorcinol–formaldehyde-neoprene latex (RF-CRL) by a simple dip-coating method and RF-CRL/PET composites were correspondingly prepared. The effect of aging time and aging temperature on the tensile properties of RF-CRL/PET composites were studied. Simultaneously, limiting oxygen index (LOI) and thermal stabilities of the modified PET fabrics were revealed. The results showed that the RF-CRL/PET composite possessed excellent high-temperature melting and breaking properties. Before 190 ℃, RF-CRL/PET composite showed excellent tensile properties at different aging time of 10 min, 20 min and 30 min. Above 200 ℃, the tensile fracture force of the composite decreased obviously especially at 220 ℃ when aged for 30 min, which showed that the prepared RF-CRL/PET exhibited excellent melting and breaking feature. Meanwhile, LOI of aged RF-CRL/PET composite was 22.5 and no melting droplet was observed compared to pure PET fabric, which was beneficial for the melting and breaking of modified PET fabrics during practical use, and no further danger would be caused. Moreover, RF-CRL/PET composite showed excellent thermal stabilities after aging. This work offers a valuable reference to endow PET fabrics with both excellent melting and breaking properties during long-time service.