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Effect of stearic acid and epoxy silane on the structure and flame‐retardant properties of magnesium hydroxide/ethylene vinyl acetate copolymer/very low density polyethylene composites
Author(s) -
Rong He,
Man Xu,
Lisheng Zhong,
Darong Xie,
Xinlu Tuo,
Jingxuan Wu
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36374
Subject(s) - materials science , stearic acid , fire retardant , silane , cone calorimeter , thermogravimetric analysis , composite material , ethylene vinyl acetate , differential scanning calorimetry , limiting oxygen index , polyethylene , magnesium , vinyl acetate , epoxy , high density polyethylene , zinc stearate , copolymer , chemical engineering , char , polymer , organic chemistry , chemistry , pyrolysis , physics , metallurgy , engineering , thermodynamics , raw material
Ethylene vinyl acetate copolymer (EVA) and very low density polyethylene (VLDPE) blends filled with magnesium hydroxide (MH) were compounded by melt blending. Two kinds of surface treatments were used in this research, including stearic acid and epoxy silane. The composites were analyzed by scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry, limiting oxygen index (LOI), and cone calorimeter testing to study the effects of stearic acid and epoxy silane on the structure and flame‐retardant properties of the MH/EVA/VLDPE composites. The results indicate that stearic acid and epoxy silane had different effects on the interfacial interaction of the MH/EVA/VLDPE composites; this made a difference in the condensed phase of the physical process. Thus, the composites with different surface treatments had different flammability characteristics, thermal degradation processes, char yields, and LOIs. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012