Synergistic Flame-retardant Effect of Epoxy Resin Combined with Phenethyl-bridged DOPO Derivative and Graphene Nanosheets

Wei Yan; Ming-Qiu Zhang; Jie Yu; Sheng-Qiang Nie; Dai-Qin Zhang; Shu-Hao Qin

doi:10.1007/s10118-019-2175-6

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Synergistic Flame-retardant Effect of Epoxy Resin Combined with Phenethyl-bridged DOPO Derivative and Graphene Nanosheets

ARTICLE | Updated：2021-02-18

- Synergistic Flame-retardant Effect of Epoxy Resin Combined with Phenethyl-bridged DOPO Derivative and Graphene Nanosheets
- Chinese Journal of Polymer Science Vol. 37, Issue 1, Pages: 79-88(2019)
- Affiliations：
  
  a.School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
  b.School of Chemistry and Materials Engineering, Guiyang University, Guiyang 550005, China
  c.National Engineering Research Center for Compounding and Modification of Polymer Materials, Guiyang 550014, China
- Author bio：
  
  lrasyw@163.com (W.Y.)
  ceszmq@mail.sysu.edu.cn (M.Q.Z.)
- Funds：
- DOI：10.1007/s10118-019-2175-6
  CLC：
- Received：28 March 2018，
  
  Revised：2018-5-24，
  
  Accepted：24 June 2018，
  
  Online First：24 July 2018，
  
  Published：2019-01
- Accepted：
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Citation: Yan, W.; Zhang, M. Q.; Yu, J.; Nie, S. Q.; Zhang, D. Q.; Qin, S. H. Synergistic flame-retardant effect of epoxy resin combined with phenethyl-bridged DOPO derivative and graphene nanosheets. Chinese J. Polym. Sci. 2019, 37, 79–88

Wei Yan, Ming-Qiu Zhang, Jie Yu, et al. Synergistic Flame-retardant Effect of Epoxy Resin Combined with Phenethyl-bridged DOPO Derivative and Graphene Nanosheets[J]. Chinese Journal of Polymer Science, 2019, 37(1): 79-88.
Citation: Yan, W.; Zhang, M. Q.; Yu, J.; Nie, S. Q.; Zhang, D. Q.; Qin, S. H. Synergistic flame-retardant effect of epoxy resin combined with phenethyl-bridged DOPO derivative and graphene nanosheets. Chinese J. Polym. Sci. 2019, 37, 79–88 DOI： 10.1007/s10118-019-2175-6.

Wei Yan, Ming-Qiu Zhang, Jie Yu, et al. Synergistic Flame-retardant Effect of Epoxy Resin Combined with Phenethyl-bridged DOPO Derivative and Graphene Nanosheets[J]. Chinese Journal of Polymer Science, 2019, 37(1): 79-88. DOI： 10.1007/s10118-019-2175-6.

摘要

Abstract

Phenethyl-bridged DOPO derivative (DiDOPO) was combined with graphene nanosheets (GNSs) in epoxy resin (EP) to improve its flame retardancy. The results indicated that the introduction of only 1.5 wt% DiDOPO/1.5 wt% GNS in EP increased the limited oxygen index (LOI) from 21.8% to 32.2%

hence meeting UL 94 V-0 rating. The thermogravimetric analyses revealed that char yield rose in presence of GNSs to form thermally stable carbonaceous char. The decomposition and pyrolysis products in gas phase were characterized by thermogravimetry-Fourier transform infrared spectroscopy (TG-FTIR)

and the release of large amounts of phosphorus was detected in the gas phase. The evaluation of flame-retardant effect by cone calorimetry demonstrated that GNSs improved the protective-barrier effect of fire residue of EP/DiDOPO/GNS. The latter was further confirmed by digital photography and scanning electron microscopy (SEM). Also

Raman spectroscopy showed that GNSs enhanced graphitization degree of the resin during combustion. Overall

the combination of DiDOPO with GNSs provides an effective way for developing high-performance resins with improved flame retardancy.

关键词

Keywords

references

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