|
|||||
|
|
Thermo-oxygen degradation mechanisms of POSS/epoxy nanocomposites |
|
| Authors: | Zengping Zhang Guozheng Liang Penggang Ren Xiaolei Wang |
| Institution: | a Department of Polymer Engineering, Materials Engineering Institute, Soochow University, Suzhou, Jiangsu 215021, PR China b Applied Chemistry Department, School of Science, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China c Institute of Printing and Packaging Engineering, Xi'an University of Technology, Xi'an, Shaanxi 710048, PR China |
| Abstract: | A series of polyhedral oligomeric silsesquioxane/epoxy nanocomposites (POSS/EP) containing 0 wt%, 5 wt%, 10 wt% and 15 wt% content of POSS were prepared. Mechanical properties were used as the index to show the effect of POSS on the thermo-oxygen degradation resistance of epoxy resin. And the thermo-oxygen degradation mechanism was investigated by scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). Results showed that the incorporation of POSS into epoxy networks enhanced the thermo-oxygen resistance of epoxy. POSS led to the formation of inert layer on the surface of materials which could protect the internal structure from decomposition. As a result, the retention of mechanical properties of EP/POSS hybrids increased with the POSS content increasing. |
| Keywords: | Polyhedral oligomeric silsesquioxane Epoxy Thermo-oxygen degradation resistance Organic--inorganic hybrid materials Nanocomposites |
| 本文献已被 ScienceDirect 等数据库收录！ | |