Research On The Polyoxymethylene / Nano Silica Composites By Melt Compounding

• Main Authors: Yu, Dawei, 虞大暐
• Other Authors: Chen, Chinhsing
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/2wnu76

碩士 === 中國文化大學 === 化學工程與材料工程學系奈米材料碩士班 === 100 === This paper aime to discuss the POM resin and nano silica composites formed by the processing process, physical properties, mechanical and thermal properties of. Prepared by mixing POM resin/nano silica (include non-modify and modify) nano composites with different content when mixing weight percent of nano silica by mixing. After forming the different levels of weight percent of the POM resin/nano silica morphology (FT-IR, XRD, Particle, SEM, TEM, ESCA), physical properties ( Contact Angle, Density, Void content), mechanical properties (Hardness, Flexural test, Tensile test, Impact strength, Wearing), thermal properties (TGA, MI, HDT, Vicat, DSC, TMA) for POM resin properties and improve the degree of difference. Experimental results show, by FT-IR, the crystal structure of POM / nano silica nanocomposites was determined; in particle size analysis show nano silica (include non-modify and modify) are both in nano specification; at XRD and ESCA test can see nanocomposites contains nano silica; Good dispersion can be seen in SEM and TEM. Adding nano silica powder does effectively enhance in the physical properties test; In the mechanical properties test results showed that the tensile and flexural, hardness and impact are effectively enhance, and wearing index decreased slightly wear volume in a small amount of add. In the thermal properties, heat resistance to enhance effect even more pronounced with the increase of nano silica add.