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The effects of prepolymer molecular weights on the thermal stability of nano-bismaleimide composite materials were studied in this paper. A series of composites with different prepolymer molecular weights are prepared by polymerizing nano-SiO2, chopped carbon fiber and bismalemide resin. Nano-composites are characterized by dynamic mechanical analysis and weight loss measurements after the short-term...
This paper presents the effect of nano-SiO2 on the thermal stability of composite materials. A series of composites with different nano-SiO2 contents are prepared by polymerizing nano-SiO2, chopped carbon fiber and bismalemide resin. Nanocomposites are characterized by dynamic mechanical analysis. The results indicate that the content of nano-SiO2 exhibit significant improvements on glass transition...
Carbonyl iron (CI) based magnetorheological (MR) fluid systems possess some disadvantages including severe sedimentation of the CI particles due to their large density mismatch with the carrier liquid and difficulties in redispersion after caking. In order to not only prevent sedimentation but also enhance re-dispersion of pure magnetic CI particles in MR fluid, hybrid magnetic particles of CI/poly(methyl...
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