摘要
研究了镁铝碱式碳酸盐阻燃剂（［Ｍｇ＿６Ａｌ＿２（ＯＨ）＿（１６）ＣＯ＿３］ ４Ｈ＿２Ｏ）的热分析及差示扫描量热法（ＤＳＣ）吸热值的优化．讨论了不同的铝源（分别以ＡｌＣｌ＿３、ＮａＡｌＯ＿２为铝源）、不同的镁铝摩尔比对所得镁铝碱式碳酸盐复合阻燃剂的相结构、热分解温度和ＤＳＣ吸热值的影响．结果表明：原料中铝源的选取对其热分解温度有决定性的影响；在一定范围内，合理的镁铝比可优化ＤＳＣ吸热值，得到热性能优异的镁铝碱式碳酸盐复合阻燃剂．
The optimization of differential scanning calorimetry (DSC) endothermic value and thermal analysis of the hydrotalcite flame-retardant agent was investigated. The hydrotalcite flame-retardant agent samples were prepared by precipitation using the one-step reaction method at the atmospheric pressure. The effect of different aluminum resources on the thermal analysis is discussed according to the results of the XRD, TG-DTA, where the aluminum resources are AlCl3 and NaAl2. By properly choosing the aluminum resources, the thermal decomposition range can be controlled; and the DSC endothermic value can be optimized by reasonably choosing mol rate of the magnesium and aluminum. The hydrotalcite flame-retardant agents with proper mol rate of the magnesium and aluminum have excellent thermal properties and high DSC absorb thermal value with rather broad thermal decomposition temperature range.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2002年第4期353-356,384,共5页
Journal of Xi'an Jiaotong University
基金
教育部"教育振兴行动计划"资助项目.
关键词
镁铝碱式碳酸盐
阻燃剂
热分析
吸热值
优化
Calorimetry
Differential scanning calorimetry
Differential thermal analysis
Flame retardants
Optimization
Thermoanalysis
