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化学与材料
材料化学前沿
Vol. 3 No. 1 (January 2015)
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硬脂酸改性NiO-TiO
2
薄膜的摩擦学性能
Tribological Performance of Chemical Modification of NiO-TiO2 Films by Stearic Acid
DOI:
10.12677/AMC.2015.31002
,
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,
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被引量
下载: 2,923
浏览: 8,774
作者:
王艳艳
,
董志伟
,
万勇
:青岛理工大学机械工程学院,山东 青岛;
高建国
:山东出入境检验检疫局检验检疫技术中心,山东 青岛
关键词:
NiO-TiO
2
;
硬脂酸
;
溶胶–凝胶
;
自组装
;
摩擦学性能
;
NiO-TiO
2
;
Stearic Acid
;
Sol-Gel
;
Self Assembled
;
Tribological Performance
摘要:
利用溶胶–凝胶技术结合自组装技术在45#钢表面制备了具有优异减摩耐磨性能的有机–无机复合薄膜。首先采用溶胶–凝胶技术在钢基底上制备NiO-TiO
2
薄膜,然后再用自组装技术在薄膜表面沉积硬脂酸分子获得有机–无机复合薄膜。利用接触角测量仪和X射线粉末衍射仪研究了薄膜的润湿性和晶体结构,用微纳摩擦磨损试验机研究了薄膜在干摩擦条件下与轴承钢球往复滑动的摩擦学性能。结果发现,经硬脂酸改性后得到的双层薄膜呈现高疏水状态,对水接触角达135°,具有优异的摩擦学性能。
Abstract:
The inorganic-organic composite films with friction reduction and wear resistance were fabricated on 45# steel using sol-gel technology combined with self assembled technology. The thin films of NiO-TiO
2
were firstly prepared on steel via a sol-gel method. The stearic acid was then deposited on the NiO-TiO
2
films to obtain an organic-inorganic composite film. The contact angle measurements and X-ray diffraction were used to investigate the films’ wetting behavior and crystalline structure, respectively. Their tribological performance was evaluated by a micro tribotester. The results indicate that the composite film shows high hydrophobicity with a water contact angle of 135˚ and good friction-reducing performance.
文章引用:
王艳艳, 高建国, 董志伟, 万勇. 硬脂酸改性NiO-TiO
2
薄膜的摩擦学性能[J]. 材料化学前沿, 2015, 3(1): 7-12.
http://dx.doi.org/10.12677/AMC.2015.31002
参考文献
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