玄武岩纤维增强橡胶木粉/回收HDPE复合材料性能的研究

Properties of Rubber Wood-flour/Recycled HDPE Composites Reinforced by Basalt Fiber

为改善传统木塑复合材料强度性能较差,采用亲油性玄武岩纤维增强进行改性。结果表明,亲油性玄武岩纤维与橡胶木粉/回收高密度聚乙烯(RHDPE)复合材料界面结合良好,随着玄武岩纤维含量的增加,复合材料的弯曲强度、弯曲模量、拉伸强度均呈现先上升后下降趋势,且在玄武岩纤维添加质量分数为5%时,达到最大值,比未添加玄武岩纤维时分别提高了54.5%、36.6%和31.4%。随着玄武岩纤维含量的增加,复合材料的吸水率呈明显下降趋势。

In order to improve the mechanical properties of traditional wood plastic composites （ WPC）, the lipophilic basalt fiber was used to reinforce WPC. The results show that the interracial bonding between lipophilic basalt fiber and the rubber wood-flour/recycled high-density polyethylene （HDPE） is good. When the additive quality of basalt fiber increases, the bending strength, bending modulus and tensile strength increase firstly and then decrease, and by the 5% basalt fiber addition they reach the maximum which increase by 54.5%, 36.6% and 31.4% with respect to the pure rubber wood-flour/recycled HDPE, respectively. The water absorption of rubber wood-flour/recycled HDPE reinforced by basalt fiber decreases obviously when the addition of basalt fiber increases.