摘要
以菱镁矿为原料,通过化学分解--水热法合成镁铝类水滑石,利用月桂酸钠对合成样品进行表面改性,以提高类水滑石粉体在润滑介质中的分散性。月桂酸钠的最佳添加量占浆液质量5%。分别采用微振动(SRV)摩擦实验和四球摩擦实验表征改性类水滑石粉体的摩擦性能。结果表明:类水滑石粉体作为减摩材料,其合理的添加量为30g/L基础油。类水滑石粉体可显著降低摩擦副间的摩擦系数,是一种具有潜在应用价值的减摩材料。
Mg-Al layered double hydroxide（LDH）,prepared by magnesite under chemical precipitation and hydrothermal,was modified by sodium laurate to improve the dispersibility in the lubrication medium.The optimum dosage of sodium laurate was 5％ in mass of seriflux.SRV friction experiment and four-ball friction test were used to characterize the friction performances of the modified LDH.The results show that the reasonable addition amount of LDH,served as antifriction material,was 30 g/L base oil.LDH could significantly reduce the friction coefficient between friction pair,which was an anti friction material of potential application.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2014年第5期688-692,共5页
Journal of The Chinese Ceramic Society
关键词
菱镁矿
类水滑石
摩擦性能
减摩材料
摩擦系数
magnesite
layered double hydroxide
friction performances
anti-friction material
friction coefficient
