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High Performance Polymers
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Preparation and Characteristics of a Novel Silicone Rubber Nanocomposite Based on Organophilic Montmorillonite

Jincheng Wang

College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, P.R.China

Yuehui Chen

College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, P.R.China

Qiqi Jin

College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, 201620, P.R.China

Novel room-temperature-vulcanized silicone rubber (RTV-SR)/organic montmorillonite (OMMT) nanocomposites were prepared by a solution intercalation process. Di(2-oxyethyl)-12 alkane- 3 methyl-amine chloride was used as the intercalation agent to treat Na°-montmorillonite and form a new kind of OMMT. Four types of RTV-SR/OMMT composites were synthesized with different amounts of OMMT. Properties such as tensile strength, differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA) were measured and compared. A combination of Fourier transform infrared spectroscopy (FT-IR), wide angle X-ray diffraction (WAXD) and transmission electronic microscopy (TEM) studies showed that RTV-SR/OMMT composites were on the nanometer scale and the presence of OMMT interfered with the segmented structure of RTV-SR, due to the reaction between the monomer and the intercalation agent. Results showed that the RTV-SR system with 10 phr OMMT has the best physical and mechanical properties due to the exfoliation of OMMT and the resultant nano-effect on the system

Key Words: RTV-SR/OMMT nanocomposite • solution intercalation • properties • characteristic

High Performance Polymers, Vol. 18, No. 3, 325-340 (2006)
DOI: 10.1177/0954008306061768
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[Abstract] [PDF]