초록 |
The MWNTs were functionalized to enhance properties of epoxy composite. The MWNTs were first treated by strong acids and then m-phenylenediamine grafting was carried out. The 1wt% of three kinds of MWNTs were dispersed with diglycidyl ether of bisphenol F and A, respectively. The functionalization of MWNTs improved on the dispersion of nanotubes, morphology of metallurgical interconnection, pull strength and thermal conductivity. As a result, amine grafted MWNTs showed the best performance because the rigid linkage between m-MWNTs and epoxy matrix provides good interface compatibility that may reduce interfacial thermal resistance. |