| WAN Tao,WANG Bo,HAN Qing,LIU Kui-ren,WANG Yu-jiang,WEI Shi-cheng.Research Progress in Preparation Technology and Properties of Nano-TiO2 Modified Epoxy Resin[J],51(7):11-26, 62 |
| Research Progress in Preparation Technology and Properties of Nano-TiO2 Modified Epoxy Resin |
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| DOI：10.16490/j.cnki.issn.1001-3660.2022.07.002 |
| KeyWord:epoxy resin nano-TiO2 composites the preparation technology properties TiO2/EP |
| Author | Institution |
| WAN Tao |
Northeastern University, Shenyang , China |
| WANG Bo |
Army Academy of Armored Forces, Beijing , China |
| HAN Qing |
Northeastern University, Shenyang , China |
| LIU Kui-ren |
Northeastern University, Shenyang , China |
| WANG Yu-jiang |
Army Academy of Armored Forces, Beijing , China |
| WEI Shi-cheng |
Northeastern University, Shenyang , China;Army Academy of Armored Forces, Beijing , China |
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| Abstract: |
| Epoxy resin is a thermosetting material with excellent property, which has a wide range of application in the such fields as aerospace, petrochemical, naval, marine because of its good anti-corrosion, thermal stability and mechanical properties. However, epoxy resin has a high cross-linking density, which makes epoxy resin toughness poor and its applications limited. Therefore, the preparation of high-property epoxy resin has become a research hotspot. The preparation technology of nano-TiO2 modified epoxy resin is summarized, including mechanical stirring method, ultrasonic method, mechanical stirring and ultrasonic bonding method, bead milling method and chemical-physical bonding method. Mean, the principle of each preparation technology and the influence of each preparation technology on the dispersibility of nano-TiO2 in epoxy resin and the existing deficiencies are also summarized. Adding nano-fillers is one of the effective methods to improve the properties of epoxy resin which can achieve the purpose of filling, leveling, protecting and insulating the substrate. In order to enhance the properties and broaden the applications of epoxy resin, epoxy resin which was modified by nano-TiO2 has a good application prospect. The preparation technology of TiO2 modified epoxy resin includes mechanical stirring method, ultrasonic method, mechanical and ultrasonic combination method, bead milling method and chemical and physical combination method are summarized, and the principle of each preparation technique is also summarized. Focusing on the dispersion of nano-TiO2 in epoxy resin which play a important role in improving the properties of TiO2/EP nanocomposites. Although all methods can disperse nano-TiO2 in epoxy resin effectively, the dispersion mechanism is different which divided into physics dispersion and chemical dispersion, physics dispersion is main disperse nano-TiO2 in epoxy resin by physical means, chemical dispersion can solve the compatibility of nano-TiO2 and epoxy resin. The related properties of epoxy resin modified by TiO2 have been improved, and mechanical property, corrosion resistant property, antifouling property, and weather resistance property are briefly reviewed with emphasis. The mechanical properties of epoxy resin can be improved when TiO2 is grafted with epoxy resin to improve the structure of epoxy resin when filling in nano-TiO2. In addition，the filling of TiO2 can effectively improve the density, lower surface energy and enhance corrosion resistance of the epoxy resin. The anti-fouling performance and weatherability of epoxy resin is improved on account of taking advantage of TiO2 photocatalytic performance and ultraviolet light absorption performance. To conclude, this paper prospects the future research directions of TiO2/EP nanocomposites. |
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