| ZHENG Gao,DU Nan,LIANG Hong-bo.The Surface Modification of Nano-Ti02 and Its Distribution in Polyurethane Coatings[J],36(4):42-44,48 |
| The Surface Modification of Nano-Ti02 and Its Distribution in Polyurethane Coatings |
| Received:March 29, 2007 Revised:August 10, 2007 |
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| DOI： |
| KeyWord:Nano-Ti02 Surface modification Nano-composite coatings Distribution Polyurethane coating |
| Author | Institution |
| ZHENG Gao |
Nanchang Institute of Aeronautical Technology, Nanchang , China |
| DU Nan |
Nanchang Institute of Aeronautical Technology, Nanchang , China |
| LIANG Hong-bo |
Nanchang Institute of Aeronautical Technology, Nanchang , China |
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| Abstract: |
| The surface of nano-Ti02 ( anatase , particle diameter 20nm) was modified by long-chain alkane or microcapsule, which was characterized by fourier tmsform infrared ray ( FTIR) and thermal analysis ( TGA) . The results show that the modified nano-Ti02 particles have been grafted by macromolecular polymers, with the grafting degrees of 50-/o and 120-/o , respectively. The modified nano-Ti02 ( 10-/o - 30-/o ) was blended with polyurethane resins to obtain nanoTi02/ polyurethane composite coating, which were further studied by scanning electron microscopy( SEM) . The results show that nano-Ti02 which was modified by microcapsule has the best dispersibility. |
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