材料工程Issue(6)：5-10,6.
氢氧化铝改性苯并噁嗪及阻燃性的研究
Modification of Benzoxazine with Aluminum Hydroxide and Flame Retardancy Improvement
摘要
Abstract
Benzoxazine (BOZ) / aluminum hydroxide(ATH) castings were prepared, and the properties of polybenzoxazine were investigated. The results show that when the mass fraction of aluminum hydroxide is more than 20％, flame retardancy of polybenzoxazine/ATH can achieve the UL-94V0 grade. Differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) test show that with aluminum hydroxide the exothermal enthalpy of ring-opening curing reaction of benzoxazine decreases apparently and the glass transition temperature of the polybenzoxzine slightly increased. Thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM) test results show that when heated above 200℃, the endothermic decomposition of aluminum hydroxide with water release to enable the polybenzoxazine to lower the temperature and to higher char yield, and aluminum oxide generated over the polybenzoxazine carbon surface isolated air to prevent combustion.关键词
苯并噁嗪/阻燃/氢氧化铝Key words
benzoxazine / flame retardant / aluminum hydroxide分类
化学化工引用本文复制引用
凌鸿,叶小舟,顾宜..氢氧化铝改性苯并噁嗪及阻燃性的研究[J].材料工程,2011,(6):5-10,6.基金项目
国家自然科学基金资助项目(20774060) （20774060）
