Flame retardancy and thermal properties of epoxy acrylate resin/alpha-zirconium phosphate nanocomposites used for UV-curing flame retardant films

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• 作者：Weiyi Xing ; Ganxin Jie ; Lei Song ; Xin Wang ; Xiaoqi Lv ; Yuan Hu
• 关键词：Thermal degradation ; Flame retardancy ; UV-curing ; OZrP ; Nanocomposites
• 刊名：Materials Chemistry and Physics
• 出版年：2011
• 出版时间：1 January 2011
• 年：2011
• 卷：125
• 期：1-2
• 页码：196-201
• 全文大小：981 K

文摘

This paper reported the UV-curing flame retardant film, which consisted of epoxy acrylate resin (EA) used as an oligomer, tri(acryloyloxyethyl) phosphate (TAEP) and triglycidyl isocyanurate acrylate (TGICA) used as flame retardant (FR). The flame retardancy and thermal properties of films were reinforced by using alpha-zirconium phosphate (α-Zr (HPO₄)₂H₂O, α-ZrP). The morphology of nanocomposite film was characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results showed that the organophilic α-ZrP (OZrP) layers were dispersed well in epoxy acrylate resin. Microscale Combustion Calorimeter (MCC), thermogravimetric analysis (TGA) and thermogravimetric analysis/infrared spectrometry (TGA-IR) were used to characterize the flame retardant property and thermal stability. It was found that the incorporation of TAEP and TGICA can reduce the flammability of EA. Moreover, further reductions were observed due to the addition of OZrP. The char residue for systems with or without OZrP was also explored by scanning electron microscopy (SEM).