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Thermo-oxidative degradation of novel epoxy containing silicon and phosphorous nanocomposites |
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| Authors: | Chin-Lung Chiang Chen-Chi M Ma Feng-Yih Wang Hsu-Chiang Kuan |
| Institution: | a Department of Chemical Engineering, National Tsing-Hua University, Hsin-Chu 30043, Taiwan, ROC b Department of Industrial Safety and Health, Hung-Kuang Institute of Technology, Sha-Lu 433, Taiwan, ROC c Department of Chemical Engineering, Cheng-Shiu Industrial of Technology, Kaohsiung 833, Taiwan, ROC |
| Abstract: | Modified epoxy nanocomposites containing silicon and phosphorous was prepared and compared with pure epoxy. The study of thermo-oxidative degradation of modified epoxy nanocomposites and pure epoxy has been utilized by thermal analysis. The thermal stability of modified epoxy nanocomposites is not superior to that of the pure epoxy at low temperature, however, the char yield of modified epoxy nanocomposites is higher than that of the pure epoxy at 800 °C in air atmosphere. The modified epoxy nanocomposites possess better thermal stability at high temperature range. The values of the limiting oxygen index of pure epoxy and modified epoxy nanocomposites are 24 and 32, respectively. This indicates that modified epoxy nanocomposites possesses better flame retardance.By the Kissinger’s method, the activation energies of thermo-oxidative degradation for epoxy nanocomposites are less than those of thermo-oxidative degradation for pure epoxy in first stage of thermo-oxidative degradation. However, the activation energies of thermo-oxidative degradation for epoxy nanocomposites are more than those of thermo-oxidative degradation for pure epoxy in second stage of thermo-oxidative degradation. |
| Keywords: | Epoxy Nanocomposite Thermo-oxidative degradation Flame retardance Activation energy Silicon Phosphorous |
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