摘要
采用N-苯基-γ-氨丙基三甲氧基硅烷偶联剂对超细氢氧化镁进行了湿法表面改性,通过SEM、TGA-DSC和FT-IR分析改性机理,表明硅烷是以硅氧烷结构接枝到了氢氧化镁表面。并应用吸油率、沉降时间和氢氧化镁/液体石蜡悬浊液的粘度来表征改性效果,得出了硅烷湿法改性超细氢氧化镁的最佳用量为1.5%(质量分数)。改性氢氧化镁粉体的分散性和表面亲油性得到了明显的改善。
The surface of superfine magnesium hydroxide was modified with Trimethoxy[3-（phenylamino）propyl]silane.The modification mechanism was analyzed by SEM,TGA-DSC and FT-IR.The results showed that the siloxane structure grafted onto the surface of magnesium hydroxide.The modification effect was evaluated by oil absorbing rate,sedimentation time and suspension viscosity of magnesium hydroxide in liquid paraffin.The optimal dosage of silane was 1.5wt%.As a result,both of the dispersivity and lipophilicity of modified magnesium hydroxide improved remarkably.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第7期1186-1189,共4页
Journal of Functional Materials
基金
中国博士后基金特别资助项目(200902128)
关键词
氢氧化镁
表面改性
硅烷偶联剂
magnesium hydroxide
surface modification
silane coupling agent
