SF含量对SF／PF动态力学和摩擦性能影响  

Effects of SF Content on Dynamic Mechanical and Tribological Properties of SF/PF Composites

作　　者：杨香莲[1] 韦春[1] 龚永洋[1] 曾铭[1] 吕建[1] 

机构地区：[1]桂林工学院材料与化学工程系,有色金属及材料加工新技术教育部重点实验室,广西桂林541004

出　　处：《现代塑料加工应用》2009年第3期5-8,共4页Modern Plastics Processing and Applications

基　　金：国家973计划前期研究专项(2008CB617513);国家自然科学基金(50763001);广西自然科学基金(桂科自0728223);广西应用基础研究专项(桂科基0836016);广西研究生教育创新人才基地项目

摘　　要：将不同含量碱处理的剑麻纤维(SF)与酚醛树脂(PF)粉末、填料等在塑炼机上熔融混炼,通过模压成型工艺制备SF/PF复合材料,研究了SF含量对SF/PF复合材料力学性能、动态力学性能、摩擦磨损性能的影响,并借助SEM观察SF/PF复合材料磨损面的微观形貌。结果表明,SF含量(质量分数,下同)为15%时,SF/PF复合材料的冲击强度、弯曲强度分别为5.58 kJ/m2和67.69 MPa,玻璃化转变温度(tg)达到204℃,与未加SF复合材料的相比tg提高13℃;SF含量为10%时,SF/PF复合材料的磨损体积为4.6×10-4cm3。SEM观察表明,SF含量10%时,SF与PF间的界面粘结性良好。Sisal fiber （SF） was pretreated by alkali firstly. SF/phenol formaldehyde （PF） composites were prepared through compression molding. Effects of different mass fraction of SF on mechanical properties, dynamic mechanical behavior and wear resistance of SF/ PF composites were investigated. Worn morphologies of the composites were observed by SEM. The results show that the impact strength, bending strength come up to 5.58 kJ/m2 and 67.69 MPa when the mass fraction of SF is 15%, and the glass transition temperature of the composite is improved by 13℃. When SF is 10% , the composite has low wear volume 4.6 × 10^-4 cm3. SEM of SF/PF bonding clearly demonstrates better when SF content is 10%.

关 键 词：剑麻纤维 酚醛树脂 复合材料 动态力学性能 摩擦性能 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]