摘要
以工业级Mg(OH)_2为原料,应用水热技术对Mg(OH)_2晶体形貌和颗粒尺寸进行改性。考察了水、乙醇和尿素3种水热溶剂对Mg(OH)_2晶体的影响。通过扫描电镜(SEM)表征可知,3种水热溶剂在一定程度上都可以改善工业级薄片状Mg(OH)_2晶体的形貌和团聚状态。尤其是尿素对Mg(OH)_2改性效果最为明显,在250℃下改性可以得到尺寸在10μm,形貌非常规整的立方体晶体。
A method of hydrothermal modification on industrial grade Mg(OH)_2 particles in ethanol, water and urea solution was investigated. Influence of morphology and size of hydrothermal products was studied. According to SEM, morphology and aggregation of Mg(OH)_2 crystals were improved greatly. Effects of urea solution was obvious, size was increased up to 10μm and morphology of Mg(OH)_2 was cube crystal at the temperature of 250℃.
出处
《化工生产与技术》
CAS
2008年第1期20-22,共3页
Chemical Production and Technology
关键词
氢氧化镁
水热介质
改性
阻燃剂
magnesium hydroxide
hydrothermal medium
modification
flame retardant
