湖南大学学报（自然科学版）2016，Vol.43Issue(6)：40-45,6.
微／纳米无机颗粒对聚氨酯环氧树脂基复合材料性能的影响
Effect of Micro/nano Inorganic Particles on the Properties of PU-EP Composites
摘要
Abstract
The mechanical blending method was used to prepare the micro/nano inorganic particle modi‐fied PU‐EP composites .T he influence of the composition and the amount of the particles on the properties of the PU‐EP composites were studied ,and the toughness mechanism of the obtained composites was also discussed .The results show that the addition of nanoparticles can noticeably improve the interlaminar shear strength and the tensile strength of the PU‐EP composites ,while reducing the elastic modulus and changing its fracture behaviors .When the content of the nano‐SiC particles equaled 2% ,the interlaminar shear strength and tensile strength of the composites reached 4 .47 MPa and 56 .56 MPa ,an improvement of about 88% and 74% compared with that of un‐modified composites .Also ,the temperature correspond‐ing to different weight‐losses of the nano‐SiC particle modified composites was improved by about 4~8 ℃ . The nanoparticles dispersed and strengthened the blunt of the silver strip ,which played an important role in the course of the toughness mechanism of the composites .关键词
微/纳米粒子/聚氨酯/环氧树脂/力学性能/热稳定性/强韧化机理Key words
micro/nano particles/PU-EP/mechanical properties/thermal stability/strengthening and toughness mechanism分类
化学工程引用本文复制引用
高朋召,林明清,林海军,高波,吴传清,肖汉宁..微／纳米无机颗粒对聚氨酯环氧树脂基复合材料性能的影响[J].湖南大学学报（自然科学版）,2016,43(6):40-45,6.基金项目
国家自然科学基金资助项目（51372078），National Natural Science Foundation of China （）
