摘要
采用有氧开放的化学共沉法,选择合适的摩尔比、pH 值、反应浓度、反应温度、反应时间,实验制备出低成本的Fe_3O_4纳米磁性微粒,突破了无氧密闭的传统工艺。以聚α-烯烃合成油(PAO)为基液,选取适配的表面活性剂(PG-3),制备出了低挥发度、多粘度级别的实用化的纳米四氧化三铁聚α-烯烃合成油基磁性液体。应用于扬声器中,显著提高了扬声器线圈的散热效果。
With suitable tool ratio, pH value, reaction concentration, reaction temperature and proper reaction ume, the nanomagnetic particulate of Fe3O4,was prepared using co-precipitation method in aerobic, open state. Using polyalphaolefin fluids as carrier liquid and matched surface activator （PG-3）, a practical nano-magnetic fluid with low evaporation, multilevel viscosity and excellent viscidity was produced. It greatly improved the heat transfer effect of coil when used in loudspeaker.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2008年第2期13-16,共4页
Ordnance Material Science and Engineering
基金
浙江省自然科学基金(Y105469)
宁波市工业攻关项目(B100010)
