Reinforcement of polyurethane composites with an organically modified montmorillonite

Autor:	Zhen Zheng, Xinling Wang, Sufang Ye, Hongmei Jiang, Jiawen Xiong
Rok vydání:	2007
Předmět:	Thermogravimetric analysis Nanocomposite Materials science Dynamic mechanical analysis chemistry.chemical_compound Montmorillonite chemistry Mechanics of Materials Dynamic modulus Ceramics and Composites Thermal stability Composite material In situ polymerization Thermal analysis
Zdroj:	Composites Part A: Applied Science and Manufacturing. 38:132-137
ISSN:	1359-835X
DOI:	10.1016/j.compositesa.2006.01.014
Popis:	A clay with reactive activity prepared by treatment of natural montmorillonite with Methylene-bis-ortho-chloroaniline (MOCA) was incorporated into polyurethane matrix and a series of PU/clay nanocomposites were obtained by in situ polymerization. The microstructure of the nanocomposites with different content of the clay was examined by atomic force microscopy (AFM). The thermal and mechanical properties of the nanocomposites with different organic clay content were characterized by dynamic mechanical thermal analysis (DMTA) and thermogravimetric analysis (TGA). It was found that the moduli and thermal stability of the nanocomposites were improved with augment of clay, especially, for the PU/9 wt% MO-MMT nanocomposite, compared to pure PU, the storage modulus and the loss modulus were increased by about 300% and 667% at −45 °C, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::41700dfb620c74c54bbf4c61dfb09e05 https://doi.org/10.1016/j.compositesa.2006.01.014 Zobrazit plný text záznamu Full Text from ScienceDirect