Controlled preparation and characterization of nano-sized hexagonal Mg(OH)2 flame retardant

• 作 者: Huaxiong Fang Tao Zhou Xiangping Chen Simin Li Guangshan Shen Xiaoyan Liao
• 机 构: Key Laboratory of Resources Chemistry of Nonferrous Metals,College of Chemistry and Chemical Enginee
• 出 处: Particuology
• 发表日期: 2014年03期

Nano-sized hexagonal magnesium hydroxide(Mg(OH)_2) with good dispersibility was synthesized by a double injection-hydrothermal method,utilizing polyvinylpyrrolidone(PVP) as an additive and with optimized processing parameters.SEM and BET analysis showed that the mean particle size and specific surface area of the Mg(OH)_2 particles were 174 nm and 50.77 m~2/g,respectively.The FT-IR spectra and the XRD patterns showed that PVP was adsorbed on the surface of the Mg(OH)_2 crystal,thus effectively limiting particle agglomeration and hindering crystal growth along the(101) plane.TGA showed a decrease in the decomposition temperature and an increase in the weight loss of the Mg(OH)_2 particles due to addition of PVP.

Nano-sized hexagonal magnesium hydroxide (Mg (OH) _2) with good dispersibility was synthesized by a double injection-hydrothermal method, utilizing polyvinylpyrrolidone (PVP) as an additive and with optimized processing parameters. SEM and BET analysis showed that the mean particle size and specific surface area of ​​the Mg (OH) 2 particles were 174 nm and 50.77 m ~ 2 / g, respectively.The FT-IR spectra and the XRD patterns showed that PVP was adsorbed on the surface of the Mg (OH) 2 crystal , at abilityly granulation agglomeration and hindering crystal growth along the (101) plane. TGA showed a decrease in the decomposition temperature and an increase in the weight loss of the Mg (OH) 2 particles due to addition of PVP.