摘要
利用液相沉积法制备了十二烷基三甲氧基硅烷(DTMS)修饰的油溶性纳米TiO2粒子,通过透射电子显微镜(TEM)和马尔文激光粒度仪对纳米粒子的微观结构和在基础油中的粒径分布进行了分析,采用电化学方法和湿热试验,研究了纳米TiO2粒子作为润滑油添加剂的防锈性能。结果表明:DTMS的表面修饰有效控制了纳米TiO2粒子的团聚,并且使纳米粒子在基础油中基本呈正态分布,平均粒径60 nm左右。基础油中加入5%纳米TiO2粒子,能有效地提高油膜对金属表面的防锈性能。
n-Dodecytrimthoxysilane （DTMS） modified Ti02 nanoparticles were prepared by the liq- uid phase deposition method. The surface morphology and particle size distribution of TiO2 nanoparticles in the base oil were examined by transmission electronic microscopy （TEM） and Mal- vern laser particle analyzer respectively. The anticorrosion property of the lubricating Oil with addi- tion of the DTMS modified TiO2 nanoparticles was studied by electrochemical method and humidi- ty cabinet test. The results showed that the agglomeration of particles was inhibited effectively by DTMS modification, and the particle size distribution in base oil exhibited a statistics distribution with a mean grain diameter of 60 nm. According to the results of electrochemical experiment and humidity cabinet test, the anticorrosion property of oil film was improved evidently by adding 5% TiO2 to the base oil.
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2013年第3期242-245,共4页
Corrosion Science and Protection Technology
关键词
纳米TIO2
防锈性能
极化曲线
TiO2 nanoparticle, anticorrosion property, polarization curve
