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[1]严思雨,贺翼超,李 蕾,等.液晶润滑ZrO2/PI的超滑性能研究[J].武汉工程大学学报,2024,46(05):497-502.[doi:10.19843/j.cnki.CN42-1779/TQ.202310003]
 YAN Siyu,HE Yichao,LI Lei,et al.Superlubricity performance of ZrO2 /PI lubricated with liquid crystals[J].Journal of Wuhan Institute of Technology,2024,46(05):497-502.[doi:10.19843/j.cnki.CN42-1779/TQ.202310003]
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液晶润滑ZrO2/PI的超滑性能研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
46
期数:
2024年05期
页码:
497-502
栏目:
化学与化学工程
出版日期:
2024-10-28

文章信息/Info

Title:
Superlubricity performance of ZrO2 /PI lubricated with liquid crystals
文章编号:
1674 - 2869(2024)05 - 0497 - 06
作者:
严思雨1贺翼超1李 蕾2熊 浩3秦襄培3吴 莉*1
1. 武汉工程大学化学与环境工程学院,湖北 武汉 430205;
2. 武汉工程大学分析测试中心,湖北 武汉 430205;
3. 武汉工程大学机电工程学院,湖北 武汉 430205
Author(s):
YAN Siyu1HE Yichao1LI Lei2XIONG Hao3QIN Xiangpei3 WU Li*1
1. School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China;
2. Analysis and Testing Center of Wuhan Institute of Technology, Wuhan 430205, China;
3. School of Mechanical and Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, China
关键词:
超滑液晶向列相聚酰亚胺取向摩擦
Keywords:
superlubricity liquid crystal nematic phase polyimide alignment friction
分类号:
TH117.2
DOI:
10.19843/j.cnki.CN42-1779/TQ.202310003
文献标志码:
A
摘要:
研究了由液晶(LC)和聚酰亚胺(PI)组成的摩擦学系统的摩擦性能。该摩擦学系统用ZrO2和PI (PMDA-ODA)薄膜作为摩擦副,液晶3PEP5(80%)-3UTPP2(20%),3PEP5(80%)-3UTPP4(20%)和3PEP5(80%)-4UTPP3(20%)作为润滑剂。在不同的转速和载荷下对该系统进行了摩擦试验,并对实验样品PI膜进行了表面分析测试,其中包括白光干涉测试和SERS。摩擦实验结果表明:液晶3PEP5(80%)-4UTPP3(20%)在5?N载荷和250?r/min转速下的平均摩擦系数最小。表面分析结果表明:PI分子主链与侧链的部分基团在摩擦后的取向与PI表面平行,导致超滑现象的产生。在摩擦学系统中以ZrO2陶瓷作为摩擦副是一种新的尝试,这有助于推动ZrO2摩擦系统的研究。
Abstract:
This paper focuses on the friction performance of a tribological system composed of liquid crystal (LC) and polyimide (PI). The tribological system mentioned uses ZrO2 and PI (PMDA-ODA) films as the friction pair, with liquid crystals 3PEP5(80%)-3UTPP2(20%), 3PEP5(80%)-3UTPP4(20%) and 3PEP5(80%)-4UTPP3(20%) used as lubricants. We conducted friction tests on the system under different rotational speeds and loads, and performed surface analysis tests on the PI film experimental sample, including white light interference testing and SERS. The friction test results show that the average friction coefficient of liquid crystal 3PEP5(80%)-4UTPP3(20%) is the smallest under a load of 5 N and a rotational speed of 250 r/min, and those of surface analysis tests show that some groups in the main chain and side chain of the PI molecule are oriented parallel to the PI surface after rubbing, resulting in the occurrence of superlubricity. Using ZrO2 ceramics as the friction pair in the tribological system is a new attempt, which will contribute to the future research of ZrO2 friction systems.

参考文献/References:

[1] DIENWIEBEL M, VERHOEVEN G S, PRADEEP N, et al. Superlubricity of graphite[J]. Physical Review Letters, 2004,92(12):?126101.

[2] MARTIN J M, DONNET C, LE MOGNE T, et al. Superlubricity of molybdenum disulphide[J]. Physical Review B, 1993, 48(14):?10583.
[3] HIRANO M, SHINJO K, KANEKO R, et al. Atomistic locking and friction[J].?Physical Review B,?1990, 41(17):?11837-11851.
[4] HIRANO M, SHINJO K, KANEKO R, et al. Observation of superlubricity by scanning tunneling microscopy[J]. Physical Review Letters, 1997, 78(8):?1448-1451.
[5] 王海军,?王齐华,?裴先强,?等.?液晶摩擦学研究现状与展望[J].?材料科学与工程学报, 2003, 21(6):?912-916.
[6] HARI K B, KUMAR S. Liquid-crystal nanoscience: an emerging avenue of soft self-assembly[J].?Chemical Society Reviews,?2011,40(1):306-319.
[7] 王海涛,?李敏,?白炳莲,?等.?几类非常规液晶材料的研究进展[J].?化学通报, 2012, 75(1):?27-36.
[8] KUMAR S. Self-organization of disc-like molecules: chemical aspects [J]. Cheminform, 2005, 35(1):?83-109.
[9] ROS M B, SERRANO J L, FUENTE M R D L, et al. Banana-shaped liquid crystals: a new field to explore[J]. Journal of Materials Chemistry, 2005, 15(48):?5093-5098.
[10] 姚俊兵,?温诗铸,?王清亮,?等.?液晶润滑添加剂5CB的减摩性能研究[J].?润滑与密封, 2000(3):?24-27.
[11] ARAFUNE R, SAKAMOTO K, YAMAKAWA D, et al. Pretilt angles of liquid crystals in contact with rubbed polyimide films with different chain inclinations[J]. Surface Science, 1996, 368(1/2/3): 208-212.
[12] JIN S G, KIM J C, YOON T H, et al. Effect of polyimide layer surfaces on pretilt angles and polar anchoring energy of liquid crystals[J]. Journal of Applied Physics, 2006, 100(9): 5217.
[13] GAO X L, CHEN H, Lü S C, et al. Preliminary study of the superlubricity behavior of polyimide-induced liquid crystal alignment[J]. Journal of Tribology, 2022, 144(4): 041901.
[14] GAO X L, CHEN H, YAN H, et al. Superlubricity by polyimide-induced alignment[J]. Friction, 2023,11(9):1690-1707.
[15] HESHMATPOUR F, AGHAKHANPOUR R B. Synthesis and characterization of nanocrystalline zirconia powder by simple Sol-gel method with glucose and fructose as organic additives [J].?Powder Technology,?2011, 205(1/2/3):?193-200.
[16] PASARIBU H R, REUVER K M, SCHIPPER D J, et al. Environmental effects on friction and wear of dry sliding zirconia and alumina ceramics doped with copper oxide?[J]. International Journal of Refractory Metals and Hard Materials, 2005,?23(4/5/6): 386-390.
[17] MITOV G, HEINTZE S D, WALZ S, et al. Wear behavior of dental Y-TZP ceramic against natural enamel after different finishing procedures?[J].?Dental Materials, 2012,?28(8): 909-918.

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备注/Memo

备注/Memo:
收稿日期:2023-10-12
基金项目:国家自然科学基金(52475188)
作者简介:严思雨,硕士研究生。Email:[email protected]
*通信作者:吴 莉,博士,教授。Email:[email protected]
引文格式:严思雨,贺翼超,李蕾,等. 液晶润滑ZrO2/PI的超滑性能研究[J]. 武汉工程大学学报,2024,46(5):497-502.

更新日期/Last Update: 2024-10-26