Ma Long, Fu Xiaotao, Zhang Cong, Chen Lincong, Chen Xiaolin, Fu Chuanfu, Yu Yunfei, Liu Hechen
Key Laboratory of Physical and Chemical Analysis for Electric Power of Hainan Province, Hairui Road No. 23, Haikou 570100, China.
Hebei Key Laboratory of Green and Efficient New Electrical Materials and Equipment, North China Electric Power University, Yonghua North Street No.619, Baoding 071003, China.
Polymers (Basel). 2022 Aug 28;14(17):3533. doi: 10.3390/polym14173533.
Basalt fiber and its resin composites have gradually supplanted traditional steel and glass fiber composites due to their superior strength, heat resistance, and corrosion resistance. However, basalt fiber still has significant flaws that restrict the functionality and use of its composites, such as less active functional groups and poor resin adherence. This study examines the effects of sizing agent on the characteristics of basalt fiber/epoxy resin composites. Epoxy resin emulsion and acrylate emulsion are employed as the primary auxiliary film-forming agents in this study. Polyurethane emulsion with various content levels is also used. The findings indicate that a 1% wt. of polyurethane emulsion concentration produces the greatest results, increasing the composite's flexural strength, flexural modulus, tensile strength, and interlaminar shear strength by 122%, 34.0%, 102%, and 10.2%, respectively. At the same time, the storage modulus and Tg of the material will decrease. In addition, the breakdown strength can be raised by 112%, and insulation parameters such as leakage current and dielectric loss factor can be decreased by 26.4% and 15.6%, respectively. The effect of sizing agent B is the best.
玄武岩纤维及其树脂复合材料因其优异的强度、耐热性和耐腐蚀性，已逐渐取代传统的钢和玻璃纤维复合材料。然而，玄武岩纤维仍存在显著缺陷，限制了其复合材料的功能和应用，如活性官能团较少、与树脂的粘附性较差。本研究考察了浸润剂对玄武岩纤维/环氧树脂复合材料性能的影响。本研究采用环氧树脂乳液和丙烯酸酯乳液作为主要的辅助成膜剂。还使用了不同含量水平的聚氨酯乳液。研究结果表明，1%重量比的聚氨酯乳液浓度产生的效果最佳，使复合材料的弯曲强度、弯曲模量、拉伸强度和层间剪切强度分别提高了122%、34.0%、102%和10.2%。同时，材料的储能模量和玻璃化转变温度会降低。此外，击穿强度可提高112%，漏电流和介电损耗因数等绝缘参数可分别降低26.4%和15.6%。浸润剂B的效果最佳。
