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Preparation and Properties of KH-550 Modified Nano-SiC/ Waterborne Polyurethane Composites

As the nano-SiC has high hardness, high thermal conductivity, elastic modulus, excellent wear resistance and other properties, In this study, the use of nano-SiC as a reinforcing agent. The nano-SiC was wrapped via the method of reflux by KH-550 (γ-aminopropyltriethoxysilane), the SiC can be better dispersed in waterborne polyurethane, synthetic KH-550 modified SiC/ waterborne polyurethane composites. By using FI-IR, XRD, SEM, TG, universal testing machine to test the analysis. Experiments show that nano-SiC can improve the mechanical properties of waterborne polyurethane and KH-550 modified nano-SiC is more significant than the nano-SiC, simultaneously adding KH-550 modified nano-SiC/waterborne polyurethane composites than waterborne polyurethane thermal conductivity increased.


Jianguo Sheng, Jianguo Sheng, Yaling Chen, Yongchun Guo

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