硅烷偶联剂处理玄武岩纤维增强木塑复合材料

The silane coupling agent treatment of basalt fibers reinforced wood-plastic composite

玄武岩纤维(BF)经γ-氨丙基三乙氧基硅烷偶联剂(KH-550)处理后添加到木塑复合材料中以改善其性能。利用扫描电镜(SEM)与红外光谱(FT-IR)对玄武岩纤维进行表征,考察了纤维含量及其表面形态对复合材料性能的影响。结果表明,经偶联剂处理的玄武岩纤维与高密度聚乙烯(HDPE)树脂基体的相容性得到了改善,添加4wt%处理后的BF,其拉伸强度和冲击强度明显提高。

Basalt fibers(BFs)were surface-treated withγ-aminopropyltriethoxysilane(KH-550)coupling agent to improve the mechanical properties of wood fiber reinforced high density polyethylene(HDPE)composites.Basalt fibers were characterized by SEM and FT-IR.The effects of the basalt fiber content and apparent morphology on the mechanical properties of the hybrid composites were investigated in this paper.Results showed that BF coated with γ-aminopropyltriethoxysilane coupling agent contributed to an improvement in mechanical properties due to the increased interfacial compatibility between BF and HDPE.The tensile and impact properties increased obviously with 4wt%treated basalt fibers.