尼龙和聚酯短纤维新预处理方法及其对复合材料性能的影响

New Method of Pretreatment of Nylon and PET Short Fibres and Its Effect on Properties of SFRC

对尼龙、聚酯短纤维的几种预处理方法进行比较和优化，提出一种新的、有效的短纤维预处理方法。分析比较了预处理方法对尼龙、聚酯短纤维在胶料中的分散度、长度保持率、混炼功率、物理性能及溶胀性能的影响。认为采用新预处理方法处理的短纤维，其复合材料的各项性能均最佳，短纤维与橡胶间获得较好的粘合效果。同时提出用补强因子来定量评价预处理效果及粘合效果的方法。

Comparision and Optimation of various short fibre-pretreating methods were made to develop a new effective method. The influence of the pretreating methods was analysed on the dispersion of nylon and PET short fibres in the compound,the length retension of short fibres, power input of mixing, and physical properties and swelling of the compound. The result shows that the excellent properties can be obtained with the composite which contains the short fibre pretreated by the new method, and good adhesion between short fibre and rubber can also be obtained. A method is proposed to evalutate the effects of pretreatment and adhesion with reinforcement factor.