环氧乙烯基酯树脂/玻璃鳞片复合材料冲击韧性的影响因素

Influence Factors of Impact Toughness of Epoxy Vinyl Ester Resin/Glass Flake Composites

研究了树脂性能及含量、玻璃鳞片形状、球形填料以及表面活性剂等因素对树脂基玻璃鳞片复合材料的冲击韧性影响。发现树脂增韧以及含量增加可显著提升复合材料的冲击韧性;减小玻璃鳞片片径虽可有效提升材料冲击韧性,但会导致材料水蒸气渗透量增加,因此鳞片片径不宜小于0.4 mm;白炭黑含量在1.5 wt%时冲击韧性达到峰值;偶联剂含量不高于1 wt%时,冲击韧性随偶联剂含量提高而增长。

Effects of resin properties and content,glass flake shape,spherical filler and surfactant on the impact toughness of resin-based glass flake composites were carried out.The resin toughening and increasing content improved the impact toughness of composites significantly.Reducing the size of glass flake improved the impact toughness,but increased the water vapor permeability.The size of glass flake should not be less than 0.4 mm.The impact toughness reached a peak value when the content of silica was 1.5 wt%.The impact toughness was improved,when the coupling agent content was less than 1 wt%.