摘要
超细活性氢氧化镁是一种重要的环保型阻燃材料。本文通过使用2种钛酸酯(JN-201和JN-101)和1种含H硅油(202)对超细氢氧化镁粉进行了表面改性,通过对改性前后粉体的活化指数来预先评价改性效果。对改性前后粉体进行了SEM、FTIR分析,研究了粉体改性的机理。结果表明,使用钛酸酯JN-101和含H硅油改性可以有效提高粉体的活化指数,而钛酸酯JN-201则不行。SEM和FTIR分析表明,使用钛酸酯JN-101和含H硅油可以提高氢氧化镁粉在干燥状态下的分散性,钛酸酯JN-101与氢氧化镁粉体表面为化学吸附,而含H硅油与氢氧化镁粉体表面为物理吸附。
Super-fine magnesium hydroxide powder which surface is treated is a kind of environment-friendly fire-rctardant of polymer. In this paper, the super-flne magnesium hydroxide powder was surface-treated with two kinds of titanate（JN- 201 and JN - 101 ） and one kind of silicone oi1（202）. The activate index of Mg（OH）2 powder was used to the assessment of the effect of modification, FTIR analysis, SEM of Mg（OH）2 powder were used to study the reasom of the effect. The result shown that surface modification by titanate JN 101 and silicone oil 202 could improve the activate index of Mg （OH）2 powder but the titanate JN -201 could not. It indicated that the modification of JN - 101 and silicone oil 202 could improve the dispersivity of Mg（OH）2 powder in dry condition and the adsorption between the JN - 101 and the surface of Mg（OH）2 powder was chemistry adsorption, but physical adsorption berween silicone oil and the surface of Mg（OH）2 powder.
出处
《化工矿物与加工》
CAS
北大核心
2005年第9期7-9,13,共4页
Industrial Minerals & Processing
关键词
氢氧化镁
钛酸酯
硅油
表面改性
magnesium hydroxide
titanate
silicone oil
surface modification
