화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.30, No.8, 536-546, August, 2022
DOI10.1007/s13233-022-0059-z  Export Citation
Environmental Friendly Intumescent Flame Retardant Gives Epoxy Resin Excellent Fire Resistance and Mechanical Properties
Huan Wang, Li Li, Yan Kang1, Xue Yin, Xuedi Lei, Jing Yang, Hui Xi, Xueqing Xu, Zhiwang Y†, and Ziqiang Lei†
  • Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P. R. China
  • 1Department of Tibetan Medicine, University of Tibetan Medicine, Lhasa 850000, P. R. China
E-mail:,
To reduce the fire hazard of epoxy resin (EP), PA-CS-M (where PA = phytic acid, CS =c hitosan, M=Cu2+, Co2+, Al3+, Zn2+, Mn2+) environmental friendly flame retardant is prepared by a simple and green method. By comparing the data after cone calorimetry test (CCT) of various composites, it is found that when 5 wt% PA-CS-Mn is added to EP, it has good flame retardant and smoke suppression performance. The peak heat release rate (pk-HRR) decreased by 38% and the smoke production rate (SPR) decreased by 33%. In addition, some toxic smoke such as CO has been significantly inhibited. The structures and morphologies of the materials were investigated by Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). When combined with expandable graphite (EG), it is found that when the ratio of PA-CS-Mn to EG is 1:5, the pk-HRR value and SPR value decreased by 69.8% and 66.6%, respectively. More importantly, the mechanical properties of the EP composites have also been greatly improved. The flexural modulus reaches 5.04 GPa, which is 52.3% higher than pure EP, and the flexural strength increases to 79.4 MPa, which also shows an increase of 41.4% as to the matrix.
Keywords:intumescent flame retardant;phytic acid;chitosan;mechanical property;epoxy resins
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