CaCO_3晶须补强增韧不饱和聚酯树脂的研究  

Study on Unsaturated Polyester Resins Strengthened and Toughened by CaCO_3 Whisker

作　　者：门晓刚[1] 刘飞[1] 曹建新[1] 

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550003

出　　处：《贵州化工》2011年第5期1-3,共3页Guizhou Chemical Industry

基　　金：贵州省科学技术基金项目(编号:黔科合J字[2011]2017);国家大学生创新性实验计划项目(编号:2010-035)

摘　　要：针对不饱和聚酯树脂(UPR)强度低、脆性大等缺陷,用添加碳酸钙晶须的方法对其进行改性,研究了碳酸钙晶须用量对树脂复合材料力学性能的影响。结果表明:当CaCO3晶须的掺量为5%时,UPR/CaCO3晶须复合材料的拉伸强度、弯曲强度达到极大值39.2MPa、52.7MPa,比树脂基体分别提高了126%和73%;当CaCO3晶须的掺量由2.5%增加到5%时,出现了明显的脆韧转变,加入量为7.5%时,UPR/CaCO3晶须复合材料的冲击强度比树脂基体提高了164%。The unsaturated polyester resins（UPR） was modified by using CaCO3 whiskers as strengthening agent for its low strength, brittleness and other defects, and the effects of content of CaCO3 whisker on the mechanical properties of resin composites were studied. The results showed that when the filling amount of CaC03 whisker is 5%, the tensile strength and maximum flexural strength of the UPR/CaCO3 whisker material are 39.2MPa and 52. 7MPa, which were increased respectively by 126% and 73% compared with the resin matrix; when CaCO3 whisker filler content increased from 2.5% to 5%, there was an obvious brittle - ductile transition and when the addition was 7.5%, the UPR/CaCO3 whisker impact strength of composites compared with the resin matrix was increased by 164%.

关 键 词：不饱和聚酯 碳酸钙晶须 补强增韧 

分 类 号：TQ323.42[化学工程—合成树脂塑料工业]