期刊
POLYMERS
卷 14, 期 20, 页码 -出版社
MDPI
DOI: 10.3390/polym14204335
关键词
flame retardancy; thiol-ene; PMDA; thermal degradation
资金
- National Natural Science Foundation of China [51703099]
- Zhejiang Provincial Natural Science Foundation of China [Y20B060020]
- Chongben Foundation
- Open Fund of Shanghai Key Laboratory of Multiphase Materials Chemical Engineering
A novel silicone flame retardant PMDA was synthesized and blended with a commercial thiol-ene (TE) to obtain a flame-retardant TE (FRTE) composite. The addition of PMDA improved the flame retardancy of the TE composite, as shown by cone calorimeter measurement. The thermal stability and degradation mechanism of FRTE in nitrogen were studied by thermogravimetric analysis. The activation energies of the FRTE degradation were found to be higher than those of neat TE, indicating improved thermal stability.
A novel silicone flame retardant PMDA was synthesized and blended with a commercial thiol-ene (TE) to obtain a flame-retardant TE (FRTE) composite. The cone calorimeter measurement showed the incorporation of PMDA improved the flame retardancy of the TE composite at concentrations of 5 wt%. The thermal stability and degradation mechanism of FRTE in nitrogen was studied by thermogravimetric analysis. The degradation behaviour of TE containing a PMDA flame retardant was found to be changed. The kinetics of thermal degradation was evaluated by Kissinger method and Flynn-Wall-Ozawa method. The results showed that the activation energies of the FRTE degradation were higher than those of neat TE. However, the degradation mechanism of the TE matrix was not changed by the incorporation of flame-retardant PMDA. In this study, the flame-retardant mechanism of PMDA flame-retardant TE polymer was explained by using two kinetic analysis methods.
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