Polymer Bulletin

, Volume 76, Issue 5, pp 2399–2410 | Cite as

Preparation and characterization of ethylene–vinyl acetate copolymer (EVA)–magnesium hydroxide (MH)–hexaphenoxycyclotriphosphazene (HPCTP) composite flame-retardant materials

  • Liguo Shen
  • Chenrui Shao
  • Renjie Li
  • Yanchao Xu
  • Jianxi Li
  • Hongjun LinEmail author
Original Paper


In order to prepare a synergetic flame retardant, the magnesium hydroxide (MH) and hexaphenoxycyclotriphosphazene (HPCTP) were blended with ethylene–vinyl acetate copolymer (EVA). The EVA–MH–HPCTP composite materials were characterized by various tests including Fourier transform infrared spectroscopy, X-ray diffractometer and scanning electron microscopy (SEM). The SEM images indicated that the compatibility of EVA–MH–HPCTP composite materials was significantly promoted due to the bridging effect of HPCTP. Therefore, the EVA–MH–HPCTP composite materials possessed better processability which was evidenced by the melt flow rate tests. Comparing to the traditional addition dosage (over 50%) of MH in previous reports, the EVA–MH–HPCTP composite materials showed significant flame-retardant efficiency even when the dosage of MH was lowered to 20 parts per hundred resins. The experimental results suggest that the prepared EVA–MH–HPCTP composite material may be a potential candidate in various industrial applications due to its excellent flame retardant.


Ethylene–vinyl acetate Magnesium hydroxide Hexaphenoxycyclotriphosphazene Composites Flame retardant 



Ethylene–vinyl acetate


Hydroxide magnesium




Limiting oxygen index


Melt flow rate


Fourier transform infrared


X-ray diffraction


Scanning electron microscope


Parts per hundred resins



Financial support of National Natural Science Foundation of China (Nos. 21506195, 21775138, 51578509) and Zhejiang Provincial Natural Science Foundation of China (Nos. LQ17E080011, LQ16B060001) is highly appreciated.


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Liguo Shen
    • 1
  • Chenrui Shao
    • 1
  • Renjie Li
    • 1
  • Yanchao Xu
    • 1
  • Jianxi Li
    • 2
  • Hongjun Lin
    • 1
    Email author
  1. 1.College of Geography and Environmental SciencesZhejiang Normal UniversityJinhuaPeople’s Republic of China
  2. 2.CGN DELTA (Jiangsu) Plastic & Chemical Co., Ltd.SuzhouPeople’s Republic of China

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