粉末冶金技术2026，Vol.44Issue(2)：153-160,8.DOI:10.19591/j.cnki.cn11-1974/tf.2025030017
机械力化学协同有机改性氧化镁粉末
Mechanochemical synergistic organic modified magnesium oxide powders
摘要
Abstract
To address the incompatibility,poor dispersion,poor fluidity,and easy agglomeration in the combination of magnesium oxide powders and organic matrix,the light-burned magnesium oxides were treated by mechanochemical synergistic organic modification method through mixing and ball milling.The effects of modifier type,modification time,and modifier amount on the microstructure,lipophilic degree,activation index,and liquid paraffin suspension viscosity of the magnesium oxides were studied.The results show that the organic modifying agents(sodium laurate,sodium stearate,and titanium acid ester coupling agent TCA-KTTT)can all effectively modify the powders,and the MgO powders modified by sodium stearate have the better comprehensive performance.The sodium stearate modified MgO powders are coated with crumbly substances,and the Fourier transform infrared spectrum analysis confirms the effective adsorption of straight-chain alkyl groups on the surface.Under the optimal conditions(the modifier is sodium stearate with the mass fraction of 7％and the modification time is 5 h),the magnesium oxide products exhibit the lipophilic degree of 36.1％,activation index of 96.4％,and paraffin suspension viscosity of 3270 mPa·s.Furthermore,the modified powders demonstrate the improved organic compatibility,compared to the unmodified powders.关键词
氧化镁/改性/硬脂酸钠/亲油化度/活化指数Key words
magnesium oxide/modification/sodium stearate/lipophilic degree/activation index分类
通用工业技术引用本文复制引用
周张燕,曹济源,马北越,赵广义,李广明,张呈呈,班霞,刘永利,宋娜..机械力化学协同有机改性氧化镁粉末[J].粉末冶金技术,2026,44(2):153-160,8.基金项目
国家自然科学基金资助项目(U20A20239) （U20A20239）
