摘要
以纳米A l2O3为增强材料,制备了EVA/A l2O3纳米复合材料,并采用FESEM、FT-NIR、SEM等测试手段表征纳米A l2O3微粒在EVA基体中的分散性与结构,研究了纳米A l2O3的质量分数对纳米复合材料力学性能的影响。结果表明:A l2O3微粒以20 nm左右的粒径分散于EVA基体中,并与EVA形成化学键合结构,复合材料的断裂机理发生变化。填充质量分数为0.5%的纳米A l2O3微粒时,拉伸强度提高13.0%;当加入的纳米A l2O3的质量分数为1%时,断裂伸长率可提高13.3%。
Nanocomposite was prepared by nano-Al2O3 and ethylene-vinyl acetate （EVA） resin. The dispersibility and structure of nano-A12O3 in EVA matrix were characterized by FESEM, FT-NIR and SEM. The effects of the content of nano-A12O3 on the mechanical properties of the nanocomposite were studied. Experimental results show that nano-Al2O3 particles with size of about 20 nm are dispersed in EVA matrix, linked with EVA through chemical bond, and the fracture machanism changed correspordingly. With 0.5% A12O3 addition, the ultimate tensile strength is improved by 13.0% ; with 1.0% A12O3 addition, the fracture elongation is increased by 13.3%.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2005年第6期577-581,共5页
Journal of Jilin University:Engineering and Technology Edition
基金
"863"国家高技术研究发展计划项目(2003AA302310)
