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Citation: LI Binjie, XU Xiangmin, ZHANG Yudong, DING Tao. Preparation of Surface Chemical Modified Magnesium Hydroxide Nanoparticles via Azeotropic Distillation Method[J]. Chinese Journal of Applied Chemistry, ;2014, 31(8): 971-976. doi: 10.3724/SP.J.1095.2014.30453 shu

Preparation of Surface Chemical Modified Magnesium Hydroxide Nanoparticles via Azeotropic Distillation Method

LI Binjie ^a,b,, ,
XU Xiangmin ^b ,
ZHANG Yudong ^b ,
DING Tao ^b

1.
a Medical College, University of Henan, Kaifeng 475004, China;
2.
b Engineering Technology Research Center of Flame Retardant Materials, University of Henan, Kaifeng 475004, China

Corresponding author: LI Binjie,
Received Date: 6 September 2013
Available Online: 18 December 2013
Fund Project: 河南省教育厅重点攻关项目(082102270003) (082102270003)河南省产学研合作项目(高性能阻燃抗静电聚甲醛的研究开发,132107000006) (高性能阻燃抗静电聚甲醛的研究开发,132107000006)

In conventional azeotropic distillation process,surface modifiers such as stearic acid(St),zinc stearate(ZnSt) and rare earth coupling agent(WOT) were firstly introduced to realize simultaneous drying and surface modification of Mg(OH)₂ nanoparticles(NPs). The structure,morphologies and properties of surfacemodified Mg(OH)₂ NPs were characterized by XRD,TEM,FT-IR,TG,CAM(contact angle measurement). The results indicate that surface modifiers not only react with the exterior hydroxyls of Mg(OH) 2 NPs to form surface modified layer via chemical bond to weaken the possibility of hard agglomeration,but also change the surface character of Mg(OH) 2 NPs from hydrophilicity to hydrophobicity. In addition,the surface modification mechanism in azeotropic distillation was also discussed. This study provides a novel surface modified route for other nanoparticles.
- azeotropic distillation,
- surface modified,
- magnesium hydroxide,
- preparation
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