Surface Effect of Silica Nano-Particles with Different Size on Thermotropic Liquid Crystalline Polyester Composites


Interface properties of nano-silica/thermotropic liquid crystalline polyesters (TLCP) composites were investigated by X-ray diffraction analysis and differential scanning calorimetory. The crystallinity of TLCP in the composites drastically decreased with an increase of nano-silica content, depending on the surface area of the silica particles. Little size effects (40 - 400 nm) in the particles and strong interaction between silica surface and the C=O moieties of TLCP were observed by IR analysis. The glass transition temperature of TLCP (<20 nm) in silica surface increased about 20C higher than that in bulk.

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Fukatsu, H. , Kuno, M. , Matsuda, Y. and Tasaka, S. (2014) Surface Effect of Silica Nano-Particles with Different Size on Thermotropic Liquid Crystalline Polyester Composites. World Journal of Nano Science and Engineering, 4, 35-41. doi: 10.4236/wjnse.2014.42006.

Conflicts of Interest

The authors declare no conflicts of interest.


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