Title :
Study on preparation and properties of organic-montmorillonite modified epoxy nanocomposites
Author :
Ming-yan, ZHANG ; Ting-ting, SUN ; Xiao-Hong, Zhang ; Chun-xiu, HU ; Qing-juan, HU
Author_Institution :
Coll. of Mater. & Eng., Harbin Univ. of Sci. & Technol., China
Abstract :
Montmorillonite (MMT) modified with alkyl ammonium ions was dispersed in an epoxy/methyl nadic anhydride (MNA) system to form epoxy/MMT composites. Processing conditions of the composites were optimized by the orthogonal experimental design. The dispersion of the MMT in the epoxy resins was investigated by X-ray diffraction and AFM. The mechanical and dielectric properties were analyzed. The results showed that with respect to the pure epoxy, the impact strength of the composites was improved approximately 12.4%. The increase of the εr and tanδ with the temperature was delayed owing to the mobility of polymer chains was restricted between the layers of MMT.
Keywords :
X-ray diffraction; atomic force microscopy; dielectric properties; mechanical properties; nanocomposites; optimisation; polymers; X-ray diffraction; alkyl ammonium ions; dielectric properties; epoxy nanocomposites; epoxy resins; mechanical properties; methyl nadic anhydride; organic-montmorillonite properties; polymer chains mobility; Delay; Design for experiments; Design optimization; Dielectrics; Epoxy resins; Mechanical factors; Nanocomposites; Polymers; Temperature; X-ray diffraction;
Conference_Titel :
Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on
Print_ISBN :
4-88686-063-X
DOI :
10.1109/ISEIM.2005.193455
