摘要
以硫酸锌、硼砂、硼酸为原料．对硼砂法制备2335型硼酸锌（2ZnO·3B2O3·3．5H2O）的工艺进行了改进．探索了一种缩短反应时间、节省能源的新工艺、实验表明：反应体系保持一定的硼酸浓度，可加快反应速度．缩短反应时间，制备的硼酸锌失水温度在350-480℃．晶体表面较为平整．呈瓜片状，粒径1．0～2．0μm，阻燃效果明显，成本低。
Zinc borate（2335） was prepared with ZnSO4·7H2O, Na2B4O7·10H2O and H3BO3 by improved zinc-borax method, which reduce reaction time and energy. The experimental results indicated that, this method could increase reaction speed, shorten reaction time. The dehydration temperature of products was 350-480℃, its surface was flat with average particle size in the range of 1.0-2.0μm. and its fire retardancy was obviously and preparation cost was low.
出处
《非金属矿》
CAS
CSCD
北大核心
2007年第1期48-51,共4页
Non-Metallic Mines
关键词
硼酸锌
制备
阻燃剂
低成本
zinc borate preparation flame retardant low cost
