氢氧化镁的制备及改性研究.doc

氢氧化镁的制备及改性研究
毕 业 论 文
题 目 无机阻燃剂的制备和改性研究 专 业 制药工程 班 级 制药 051 学 号 学 生 指导教师
2009 年
2009届制药工程专业毕业论文
无机阻燃剂的制备和改性研究 mizing
conditions, for fabricating superfine powders of magnesium hydroxide, are obtained. Those are the injection method injecting ammonia into magnesium ion solution, pH= in reaction, 25% ammoniaw ater, agnesium ion concentration, - injection rate of ammonia, 60? aging temperature,
60min aging time and 10ml compound dispersant solution.
Surface modification of magnesium hydroxide by stearic acid was investigated in experiments. XRD, FT-IR, and TG-DTA were used to characterize the modified samples, and the analyzed results indicated that, its thermaldecom posing temperature were inproved after modification, stearic acid molecules occurred adsorbing bond on the surface of Mg(OH) powders. 2
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2009届制药工程专业毕业论文
KEY WORDS: magnesium hydroxide, flame retardants, stearic acid ,
modification
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姚建平:无机阻燃剂的制备和改性研究
目录
摘 要 ........................................................ ii
ABSTRACT .................................................... iii
1绪论 ......................................................... 1 ............................... 2 ..................................... 2
物理粉碎法 ....................................... 3
化学沉淀法 ....................................... 3
硫氢化物一水热法 ................................. 4 ..................................... 4 ..................................... 5
颗粒的超细化 ..................................... 5
氢氧化镁的形态控制 ............................... 5
氢氧化镁与其他阻燃剂的协同效应 ................... 7
氢氧化镁的改性 ................................... 7 .................................................. 10 ............................ 10
2实验部分 .................................................... 11 ........................................ 11