玄武岩纤维增强环氧树脂复合材料性能研究  

Properties Study of Basalt Fiber Reinforced Epoxy Resin Composites

作　　者：张奇 于人同[1] ZHANG Qi;YU Rentong(School of Materials Science and Engineering,Hainan University,Haikou 570228,China)

机构地区：[1]海南大学材料科学与工程学院,海南海口570228

出　　处：《塑料科技》2025年第2期64-70,共7页Plastics Science and Technology

摘　　要：为提升玄武岩纤维增强环氧树脂复合材料的性能,以聚多巴胺(PDA)为活性位点,将聚苯胺(PANI)修饰于玄武岩纤维(BF)表面,并与环氧树脂(EP)复合,制备BF-PDA-PANI/EP复合材料。结果显示:在不同种类及浓度的无机酸条件下,利用扫描电子显微镜(SEM)观察PANI在BF-PDA表面的包覆情况,发现0.2 mol/L HCl条件下包覆效果最佳,同时通过傅里叶变换红外光谱仪(FTIR)和X射线光电子能谱分析仪(XPS)进一步验证了PANI在BF表面的包覆。在0.2 mol/L HNO3条件下合成的BF-PDA-PANI/EP复合材料的拉伸强度和弯曲强度分别为7.24 MPa和23.48 MPa;在0.2 mol/L HCl条件下合成的BF-PDA-PANI/EP复合材料的悬臂梁冲击强度为27.55 MPa。与BF/EP复合材料相比,BF-PDA-PANI/EP复合材料的力学性能得到显著提升。To enhance the properties of basalt fiber reinforced epoxy resin composites,polyaniline(PANI)was modified on the surface of basalt fiber(BF)using polydopamine(PDA)as the active site,and then combined with epoxy resin(EP)to prepare BF-PDA-PANI/EP composites.The results show that under different types and concentrations of inorganic acid conditions,the coating of PANI on the surface of BF-PDA was observed using scanning electron microscopy(SEM),and the best coating effect was found under 0.2 mol/L HCl condition.Fourier transform infrared spectroscopy(FTIR)and X-ray photoelectron spectroscopy(XPS)were further used to verify the coating of PANI on the surface of BF.The tensile strength and flexural strength of BF-PDA-PANI/EP composites synthesized under 0.2 mol/L HNO3 condition were 7.24 MPa and 23.48 MPa,respectively;while the cantilever beam impact strength of BF-PDA-PANI/EP composites synthesized under 0.2 mol/L HCl condition was 27.55 MPa.Compared with BF/EP composites,the mechanical properties of BF-PDA-PANI/EP composites were significantly improved.

关 键 词：玄武岩纤维 环氧树脂 力学性能 聚苯胺 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ323.5[化学工程—合成树脂塑料工业]