剑麻/钢纤维增强改性酚醛树脂力学和摩擦性能  

Study on Mechanical and Friction Properties of Sisal/Steel Fiber Reinforced Modified Phenolic Resin Composites

作　　者：熊雪梅[1] 韦春[1] 潘冬明[1] 李肖建[1] 

机构地区：[1]桂林理工大学有色金属及材料加工新技术教育部重点实验室,材料科学与工程学院,广西桂林541004

出　　处：《现代塑料加工应用》2010年第6期9-12,共4页Modern Plastics Processing and Applications

基　　金：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项目(2009105960305M13)资助

摘　　要：采用改性酚醛树脂为基体,剑麻/钢纤维混杂为增强纤维,通过辊炼、模压成型工艺制备了剑麻/钢纤维增强酚醛树脂复合材料。研究了剑麻纤维的加入及含量对聚砜改性酚醛树脂复合材料力学性能、摩擦磨损性能及热稳定性能的影响。结果表明:剑麻纤维质量分数为15%、钢纤维为10%时,复合材料的冲击和弯曲强度分别为3.82kJ/m^2和59.6MPa,达到最大;随着剑麻纤维含量的增加,复合材料的摩擦系数降低,热稳定性能下降,当剑麻纤维质量分数为10%时,复合材料的摩擦性能优异;复合材料的磨损面呈现黏着磨损和疲劳磨损特征。The modified phenolic as matrix resin,sisal fiber and steel fiber as reinforcing fiber,the sisal/steel fiber composites were prepared through rolling,compression moulding technology.The influences of the addition of sisal fiber and its contents on the mechanical properties,friction and wear properties and thermal stability of phenolic resin modified by polysulfon were discussed.The results show that when the mass ratio of sisal fiber is 15%, steel fiber is 10%,the impact and flexural strength are 3.82 kJ/m^2 and 59.6 MPa,attaining maximum.With the increasing of the contents of sisal fiber,the friction coefficient and the thermal stability of composites decrease.When the mass ratio of the sisal fiber is 10%,the friction property of composites is best.The worn surfaces mainly act as adhesion wear and fatigue wear characteristic.

关 键 词：酚醛树脂 聚砜 剑麻纤维 钢纤维 增强 摩擦 热稳定性 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]