Synthesis and Characterization of Water Borne Polyurethane/Mesoporous Molecular Sieves nanocomposites

• Main Authors: Chao-Hui Lin, 林照輝
• Other Authors: Chi-Feng Cheng
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/84205934055766088847

碩士 === 中原大學 === 化學研究所 === 97 === Waterborne polyurethane- nanoscale mesoporous silica nanocomposite materials were prepared by using nanoscale mesoporous silica nanoparticle of NMS and modified nanoscale mesoporous silica nanoparticle of M-NMS instead of clay. In this thesis, a novel segmented water base polyurethane / mesoporous material nanocomposite (WPU/NMS) based on 4,4′-methylenebis(cyclo hexyl isocyanate), polycaprolactone, dimethylolpropionic acid, triethylenetetramine, and mesoporous material. Mechanical properties, about mesoporous material in WPU results in a increase in the modulus as comfirmed by DMA studies. From TGA data, increasing of NMS content will shift Td to a much higher temperature. These phenomena is due to porous effect and high contacted area from mesoporous molecular sieves. Keywords：nanocomposite；mesoporous；polyurethane；modulus properties.