超声场中醇盐水解法制备纳米Sb_2O_3阻燃剂  

Preparation of Nanosized Sb_2O_3 Flame Retardant by Hydrolysis of Alcoholate in Ultrasonic Field

作　　者：朱广军[1] 汪信[1] 杨绪杰[1] 陆路德[1] 王其[1] 张琳[1] 

机构地区：[1]南京理工大学化工学院,南京210094

出　　处：《材料导报》2013年第14期104-107,共4页Materials Reports

基　　金：江苏省应用基础研究资助项目(BJ95218);南京理工大学科研发展基金(20000304)

摘　　要：采用超声场中醇盐水解法制备出平均粒径15nm的纳米Sb2O3阻燃剂,用XRD、TEM对纳米Sb2O3阻燃剂进行了表征,采用超声波技术减小了纳米Sb2O3的粒径,减轻了团聚现象。通过实验研究了超声波功率和超声时间对产品粒径的影响,得到了较佳制备工艺条件。探讨了超声波应用的机理,发现超声场对纳米Sb2O3晶型有影响,通过超声场制备的纳米Sb2O3为立方晶型。同时,将纳米Sb2O3阻燃剂用于阻燃性聚乙烯(PE)/乙烯-醋酸乙烯共聚物(EVA)保温材料阻燃中,较大幅度地提高了阻燃性PE/EVA保温材料的力学性能和阻燃性能。Nanosized Sb2O3 flame retardant with an average particle size of 15 nm was prepared by hydrolysis of alcoholate in ultrasonic field. Nanosized Sb2 O3 was characterized by means of XRD, TEM. The particle size and ag- gregation of nanosized Sb2O3 were decreased by using ultrasonic wave technology. Effects of ultrasonic power and ul- trasonic time on particles size were studied by experiments, and the optimal preparation conditions were obtained. The application mechanism of ultrasonic wave was discussed. It was found that ultrasonic field has influence on crystalline form of nanosized Sb2O3. Crystalline form of nanosized Sb2O3 by ultrasonic field is cubic. The nanosized Sb2O3 was applied to flame retardant polyethylene （PE）/ethylene-vinyl acetate copolymer （EVA） insulating material. The mecha- nical properties and flame retardancy of the flame retardant PE/EVA insulating material were improved considerably.

关 键 词：超声场 纳米Sb2O3阻燃剂 醇盐水解 PE EVA保温材料 

分 类 号：O614.531[理学—无机化学]