聚氨酯胶辊的特性与应用

Characteristics and Application of Polyurethane Rubber-covered Roll

探讨聚氨酯胶辊的特性和应用效果。分析了丁腈胶辊存在的问题,介绍了聚氨酯胶辊的基本性能、制造方法和应用特性,并与丁腈胶辊进行了纺纱性能对比。结果表明:聚氨酯胶辊具有优良的弹性和耐磨性,压缩变形小、隔热吸振、硬度稳定,耐油、耐光照、耐臭氧、抗老化龟裂性强,添加抗静电剂或导电成分后,具有良好的抗静电性和吸放湿性,弥补了丁腈胶辊性能的不足。经长时间对比试验证明,其纺纱条干质量和抗缠绕性优于丁腈胶辊,复磨周期和使用寿命较长。认为,目前采用"浇注型"制造工艺,能够较好的满足胶辊各项性能要求。推广聚氨酯胶辊,有助于改善成纱质量、提高胶辊适纺性、降低生产成本。

Characteristics and application of polyurethane rubber-covered roll were discussed. Problems of nitrile rubber-covered roll were analyzed. Basic property, manufacturing methods and application features of polyurethane rubber-covered roll were introduced. The spinning performance of polyurethane rubber-covered roll and nitrile rubber-covered roll was contrasted. The result shows that there are many advantages for polyurethane rubber-covered roll, such as better elasticity and wearability, smaller deformation, thermal insulation and vibration absorption, stable hardness, resistance to oil ＆ light ＆ ozone, stronger anti-aging cracking, better antistatic and absorbing or releasing moisture after adding antistatic agent or conductive composition. It is proved by long time comparison test, the spinning yarn quality and antiwinding is better than that of nitrile rubber-covered roll. The grinding cycle and life are longer than of nitrile rubber-covered roll. Currently, it is considered that each property demands of rubber-covered roll can be satisfied well by adopting pouring processing. Yarn quality can be improved, spinnability of rubber-covered roll can be increased and production cost can be reduced by using polyurethane rubber-covered roll.