摘要
采用酸碱刻蚀法和硅烷偶联剂法对玄武岩纤维(BF)进行改性,利用熔融共混法制得改性玄武岩纤维-聚丙烯(MBF-PP)复合材料,分别研究不同浓度的HCl(1、2、3 mol/L)和NaOH(1、2、3 mol/L)联合不同种类硅烷偶联剂(KH550、KH560、KH570)的MBF对其复合材料力学性能的影响。结果表明:使用1 mol/L HCl刻蚀改性的BF制备的MBF-PP复合材料拉伸强度为19.5619 MPa,相比纯PP提高6.8%;使用2 mol/L NaOH刻蚀改性的BF制备的MBF-PP复合材料拉伸强度为20.0667 MPa,相比纯PP提高9.5%;使用NaOH改性的抗拉强度均高于HCl,但对浓度要求更高;使用HCl和KH550联合改性的MBF-PP复合材料力学性能比单独改性的MBF-PP复合材料低;使用KH570改性的MBF-PP复合材料力学性能最高,但同时塑性也较高。
Basalt fibers(BF)were modified using acid-alkali etching and silane coupling agent methods.Modified basalt fiber-polypropylene(MBF-PP)composites were prepared by the melt-blending method.The effects of different concentrations of HCl(1,2,3 mol/L)and NaOH(1,2,3 mol/L)in combination with different types of silane coupling agents(KH550,KH560,KH570)on the mechanical properties of the composites were investigated.The results showed that the tensile strength of the MBF-PP composite prepared with BF modified by 1 mol/L HCl etching was 19.5619 MPa,which is 6.8%higher than that of pure PP.The tensile strength of the MBF-PP composite prepared with BF modified by 2 mol/L NaOH etching was 20.0667 MPa,representing a 9.5%increase compared to pure PP.The tensile strength of composites modified with NaOH was higher than that of those modified with HCl,but higher concentrations were required.The mechanical properties of MBF-PP composites modified with HCl and KH550 in combination were lower than those modified individually.The mechanical properties of the MBF-PP composite modified with KH570 are the highest,but at the same time,its ductility is also relatively high.
作者
廖俊杰
郭润杰
张敬嘉鸣
谢胜澜
张廷藩
LIAO Junjie;GUO Runjie;ZHANG Jingjiaming;XIE Shenglan;ZHANG Tingfan(School of New Energy and Materials,Southwest Petroleum University,Nanchong 637001,China)
出处
《塑料科技》
北大核心
2025年第6期100-104,共5页
Plastics Science and Technology
基金
四川省大学生创新训练计划项目(S202410615296)
南充市-西南石油大学市校科技战略合作项目(23XNSY0063)
南充市-西南石油大学市校科技战略合作项目(23XNSYSX0114)。
关键词
玄武岩纤维
聚丙烯
力学性能测试
增强聚丙烯复合材料
硅烷偶联剂改性
界面结合性能
Basalt fiber
Polypropylene
Mechanical property
Reinforced polypropylene composites
Silane coupling agent modification
Interfacial bonding properties
