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Zhong W, Dong J, Chen S, Tong Z. The Synergistic Lubrication Effects of h-BN and g-C 3N 4 Nanoparticles as Oil-Based Additives for Steel/Steel Contact. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4979. [PMID: 37512254 PMCID: PMC10381899 DOI: 10.3390/ma16144979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023]
Abstract
The synergistic effect of different types of solid particles in liquid lubricants is of great interest. In this work, g-C3N4 nanosheets were initially prepared using a calcination method and then as-prepared, and h-BN were used as lubricating additives to the white oil. A comparison between the mixed additives and the single g-C3N4 or h-BN additives revealed that the base oil with the addition of g-C3N4 and h-BN showed the best lubricating properties. The results show a 12.3% reduction in friction coefficient, resulting in a 68.6% reduction in wear rate compared to the white oil when filled with 0.5 wt% g-C3N4 and h-BN (1:1 by weight). Moreover, the addition of g-C3N4 and h-BN improves the high-temperature lubrication properties of the white oil. However, the friction coefficient and wear rate increase with increasing oil temperature. The large contact area between g-C3N4 and its sliding counterpart and the strong adhesive force between h-BN and its sliding counterpart improve the film formation efficiency, leading to enhanced tribological properties under oil lubrication conditions.
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Affiliation(s)
- Wen Zhong
- The Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China
- Luzhou Laojiao Group Co., Ltd., Luzhou 646000, China
| | - Jiazhi Dong
- The Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China
- Luzhou Laojiao Group Co., Ltd., Luzhou 646000, China
| | - Siqiang Chen
- The Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China
- Luzhou Laojiao Group Co., Ltd., Luzhou 646000, China
| | - Zhe Tong
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China
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2
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Solovyeva VA, Almuhammadi KH, Badeghaish WO. Current Downhole Corrosion Control Solutions and Trends in the Oil and Gas Industry: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1795. [PMID: 36902911 PMCID: PMC10004626 DOI: 10.3390/ma16051795] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/11/2022] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
In the oil and gas industry, the presence of aggressive fluids and gases can cause serious corrosion problems. Multiple solutions have been introduced to the industry to minimize corrosion occurrence probability in recent years. They include cathodic protection, utilization of advanced metallic grades, injection of corrosion inhibitors, replacement of the metal parts with composite solutions, and deposition of protective coatings. This paper will review the advances and developments in the design of corrosion protection solutions. The publication highlights crucial challenges in the oil and gas industry to be solved upon the development of corrosion protection methods. According to the stated challenges, existing protective systems are summarized with emphasis on the features that are essential for oil and gas production. Qualification of corrosion protection performance based on international industrial standards will be depicted in detail for each type of corrosion protection system. Forthcoming challenges for the engineering of next-generation materials for corrosion mitigation are discussed to highlight the trends and forecasts of emerging technology development. We will also discuss the advances in nanomaterial and smart material development, enhanced ecological regulations, and applications of complex multifunctional solutions for corrosion mitigation which have become of great importance in recent decades.
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3
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Construction of a binary architecture of flower-like nickel phyllosilicate@zinc sulfide towards the robust, wear-resistant and thermal-stable epoxy nanocomposites. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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4
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Zhong W, Chen S, Ma L, Tong Z. Tribological Properties of Carbon Fabric/Epoxy Composites Filled with FGr@MoS 2 Hybrids under Dry Sliding Conditions. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7951. [PMID: 36431437 PMCID: PMC9696074 DOI: 10.3390/ma15227951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
Hybrids of fluorinated graphite/MoS2 (FGr@MoS2) were prepared via a hydrothermal method and used as lubricating additives to take full advantage of the synergy between FGr and MoS2 in carbon-fiber-reinforced polymer (CFRP). The results show a 21.6% reduction in the friction coefficient compared to the neat sample when the CFRP was filled with 1.2 wt.% FGr@MoS2 hybrids. The addition of 1.5 wt.% FGr@MoS2 resulted in a 60.9% reduction in the wear rate compared to neat CFRP. For the 1.2 wt.% FGr@MoS2-reinforced CFRP, the friction coefficient maintained a relatively steady value of approximately 0.46 at various temperatures, indicating frictional stability. However, the wear rate increased by 13.95% at 60 °C compared to that at room temperature. The interfacial bonding force between the FGr@MoS2 hybrid and the matrix, as well as the adhesive force with the surface of the counterpart ball, is improved, caused by the heterostructure of FGr@MoS2, resulting in enhanced mechanical properties and formation efficiency as well as the transfer film on the surface of the counterpart ball. The results suggest that an FGr@MoS2 micro-nano structure is a promising additive to be applied in polymer tribology.
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Affiliation(s)
- Wen Zhong
- The Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China
- Luzhou Laojiao Group Co., Ltd., Luzhou 646000, China
| | - Siqiang Chen
- The Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China
- Luzhou Laojiao Group Co., Ltd., Luzhou 646000, China
| | - Lei Ma
- The Key Laboratory of Fluid and Power Machinery, Ministry of Education, Xihua University, Chengdu 610039, China
| | - Zhe Tong
- School of Mechanical Engineering, North University of China, Taiyuan 030051, China
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5
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Tian J, Tang Q, Li C, Xian G. Mechanical, bonding and tribological performances of epoxy‐based nanocomposite coatings with multiple fillers. J Appl Polym Sci 2022. [DOI: 10.1002/app.52303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jingwei Tian
- Key Lab of Structures Dynamic Behavior and Control Harbin Institute of Technology, Ministry of Education Harbin China
- Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of Technology Harbin China
- School of Civil Engineering Harbin Institute of Technology Harbin China
| | - Qianwen Tang
- Petroleum Engineering Technology Research Institute Shengli Oilfield Company, China Petroleum & Chemical Corporation (SINOPEC) Dongying China
| | - Chenggao Li
- Key Lab of Structures Dynamic Behavior and Control Harbin Institute of Technology, Ministry of Education Harbin China
- Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of Technology Harbin China
- School of Civil Engineering Harbin Institute of Technology Harbin China
| | - Guijun Xian
- Key Lab of Structures Dynamic Behavior and Control Harbin Institute of Technology, Ministry of Education Harbin China
- Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology Harbin Institute of Technology Harbin China
- School of Civil Engineering Harbin Institute of Technology Harbin China
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6
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Yin Z, Zhou D, Li M, Chen X, Xue M, Ou J, Luo Y, Hong Z. A multifunction superhydrophobic surface with excellent mechanical/chemical/physical robustness. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Thermal decomposition behavior and flame retardancy of bioepoxies, their blends and composites: A comprehensive review. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Gorbacheva SN, Yadykova AY, Ilyin SO. Rheological and tribological properties of low-temperature greases based on cellulose acetate butyrate gel. Carbohydr Polym 2021; 272:118509. [PMID: 34420754 DOI: 10.1016/j.carbpol.2021.118509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/10/2021] [Accepted: 07/27/2021] [Indexed: 02/06/2023]
Abstract
A new approach to produce biodegradable low-temperature greases, based on cellulose acetate butyrate (CAB) that dissolves in the medium of acetyl tributyl citrate (ATBC) at high temperatures and produces a gel during cooling because of phase separation, is proposed. Rheological properties of CAB solutions and gels in a wide temperature range from -80 °C to 160 °C were investigated with characterization of their viscoelasticity and viscoplasticity that arise because of the sol-gel transition of CAB/ATBC systems at 55 °C. CAB gelation reduces the wear coefficient tenfold when using ATBC as a lubricant but leads to a noticeable increase in the friction coefficient. To improve tribological properties of gel greases, additives of various solid particles were used: hexagonal boron nitride, graphite, and polytetrafluoroethylene (PTFE). The introduction of 10% to 30% additives in a gel grease containing 10% CAB has shown the preference of PTFE at a concentration of 10% for improving grease tribological characteristics.
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Affiliation(s)
- Svetlana N Gorbacheva
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Anastasiya Y Yadykova
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Sergey O Ilyin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia.
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Zhang J, Wang D, Wang L, Zuo W, Zhou L, Hu X, Bao D. Effect of Terminal Groups on Thermomechanical and Dielectric Properties of Silica-Epoxy Composite Modified by Hyperbranched Polyester. Polymers (Basel) 2021; 13:2451. [PMID: 34372053 PMCID: PMC8348354 DOI: 10.3390/polym13152451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 02/07/2023] Open
Abstract
To study the effect of hyperbranched polyester with different kinds of terminal groups on the thermomechanical and dielectric properties of silica-epoxy resin composite, a molecular dynamics simulation method was utilized. Pure epoxy resin and four groups of silica-epoxy resin composites were established, where the silica surface was hydrogenated, grafted with silane coupling agents, and grafted with hyperbranched polyester with terminal carboxyl and terminal hydroxyl, respectively. Then the thermal conductivity, glass transition temperature, elastic modulus, dielectric constant, free volume fraction, mean square displacement, hydrogen bonds, and binding energy of the five models were calculated. The results showed that the hyperbranched polyester significantly improved the thermomechanical and dielectric properties of the silica-epoxy composites compared with other surface treatments, and the terminal groups had an obvious effect on the enhancement effect. Among them, epoxy composite modified by the hyperbranched polyester with terminal carboxy exhibited the best thermomechanical properties and lowest dielectric constant. Our analysis of the microstructure found that the two systems grafted with hyperbranched polyester had a smaller free volume fraction (FFV) and mean square displacement (MSD), and the larger number of hydrogen bonds and greater binding energy, indicating that weaker strength of molecular segments motion and stronger interfacial bonding between silica and epoxy resin matrix were the reasons for the enhancement of the thermomechanical and dielectric properties.
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Affiliation(s)
- Jianwen Zhang
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 211116, China; (J.Z.); (D.W.); (W.Z.); (X.H.); (D.B.)
| | - Dongwei Wang
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 211116, China; (J.Z.); (D.W.); (W.Z.); (X.H.); (D.B.)
| | - Lujia Wang
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 211116, China; (J.Z.); (D.W.); (W.Z.); (X.H.); (D.B.)
- State Key Laboratory of Internet of Things for Smart City, University of Macau, Macau 999078, China
| | - Wanwan Zuo
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 211116, China; (J.Z.); (D.W.); (W.Z.); (X.H.); (D.B.)
| | - Lijun Zhou
- School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China;
| | - Xue Hu
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 211116, China; (J.Z.); (D.W.); (W.Z.); (X.H.); (D.B.)
| | - Dingyu Bao
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 211116, China; (J.Z.); (D.W.); (W.Z.); (X.H.); (D.B.)
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10
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Zhang J, Wang D, Wang L, Zuo W, Ma X, Du S, Zhou L. Thermomechanical properties of silica–epoxy nanocomposite modified by hyperbranched polyester: A molecular dynamics simulation. HIGH PERFORM POLYM 2021. [DOI: 10.1177/09540083211032383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this article, pure epoxy resin and silica–epoxy nanocomposite models were established to investigate the effects of hyperbranched polyester on microstructure and thermomechanical properties of epoxy resin through molecular dynamics simulation. Results revealed that the composite of silica can improve the thermomechanical properties of nanocomposites, including the glass transition temperature, thermal conductivity, and elastic modulus. Moreover, the thermomechanical properties were further enhanced through chemical modification on the silica surface, where the effectiveness was the best through grafting hyperbranched polyester on the silica surface. Compared with pure epoxy resin, the glass transition temperature of silica–epoxy composite modified by silica grafted with hyperbranched polyester increased by 38 K. The thermal conductivity increased with the increase of temperature and thermal conductivity at room temperature increased to 0.4171 W/(m·K)−1 with an increase ratio of 94.3%. Young’s modulus, volume modulus, and shear modulus all fluctuated as temperature rise with a down overall trend. They increased by 44.68%, 29.52%, and 36.65%, respectively, when compared with pure epoxy resin. At the same time, the thermomechanical properties were closely related to the microstructure such as fractional free volume (FFV), mean square displacement (MSD), and binding energy. Silica surface modification by grafting hyperbranched polyester reduced the FFV value and MSD value most and strengthened the combination of silica and epoxy resin matrix the best, resulting in the best thermomechanical properties.
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Affiliation(s)
- Jianwen Zhang
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China
| | - Dongwei Wang
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China
| | - Lujia Wang
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China
- State Key Laboratory of Internet of Things for Smart City, University of Macau, Macau, China
| | - Wanwan Zuo
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China
| | - Xiaohua Ma
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China
| | - Shuai Du
- School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou, China
| | - Lijun Zhou
- School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China
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11
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Yi J, Yang Y, Zhang Y, Cao M, Wang T, Guan J, Xiao Y, Zhang Y, Tang B, Shen X. Improved tribological and thermo‐mechanical properties of epoxy resin with micro‐nano structured
ZrO
2
/
Ti
3
C
2
particles. J Appl Polym Sci 2021. [DOI: 10.1002/app.51209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jie Yi
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
| | - Yaru Yang
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
| | - Yalin Zhang
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
| | - Miao Cao
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
| | - Tianle Wang
- School of Pharmaceutical and Materials Engineering Taizhou University Taizhou China
| | - Jipeng Guan
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
| | - Yunchao Xiao
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
| | - Yuanjie Zhang
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
| | - Bolin Tang
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
| | - Xiaojun Shen
- Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province Jiaxing University Jiaxing China
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12
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Recent Advances in UHMWPE/UHMWPE Nanocomposite/UHMWPE Hybrid Nanocomposite Polymer Coatings for Tribological Applications: A Comprehensive Review. Polymers (Basel) 2021; 13:polym13040608. [PMID: 33670577 PMCID: PMC7922479 DOI: 10.3390/polym13040608] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 12/04/2022] Open
Abstract
In the recent past, polymer coatings have gained the attention of many researchers due to their low cost, their ability to be coated easily on different substrates, low friction and good anti-corrosion properties. Various polymers such as polytetrafluroethylene (PTFE), polyether ether ketone (PEEK), polymethylmethacrylate (PMMA), polyurethane (PU), polyamide (PA), epoxy and ultra-high molecular weight polytheylene (UHMWPE) have been used to develop these coatings to modify the surfaces of different components to protect them from wear and corrosion. However, among all these polymers, UHMWPE stands out as a tribologist’s polymer due to its low friction and high wear resistance. These coatings have found their way into applications ranging from microelectro mechanical systems (MEMS) to demanding tribological applications such as bearings and biomedical applications. Despite its excellent tribological properties, UHMWPE suffers from limitations such as low load bearing capacity and low thermal stability. To overcome these challenges researchers have developed various routes such as developing UHMWPE composite and hybrid composite coatings with several types of nano/micro fillers, developing composite films system and developing dual film systems. The present paper is an effort to summarize these various routes adopted by different researchers to improve the tribological performance of UHMWPE coatings.
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Baig MMA, Samad MA. Epoxy\Epoxy Composite\Epoxy Hybrid Composite Coatings for Tribological Applications-A Review. Polymers (Basel) 2021; 13:polym13020179. [PMID: 33419106 PMCID: PMC7825423 DOI: 10.3390/polym13020179] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 12/29/2020] [Accepted: 01/01/2021] [Indexed: 02/02/2023] Open
Abstract
Epoxy composite coating systems generally find their usage in applications such as, fluid handling systems to protect components from corrosive media. However, their use in demanding tribological applications such as, in sliding components of machines, are known to be limited. This is often attributed to their low load bearing capacity combined with poor thermal stability under severe p-v regimes. Researchers have tried to enhance the tribological properties of the epoxy coatings using a combination of several types of micro/nano sized fillers to produce composite or hybrid composite coatings. Hence, this review paper aims to focus on the recent advances made in developing the epoxy coating systems. Special attention would be paid to the types and properties of nano-fillers that have been commonly used to develop these coatings, different dispersion techniques adopted and the effects that each of these fillers (and their combinations) have on the tribological properties of these coatings.
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14
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Zhao W, Chen H, Fan Y, Cui W. The influences of different size
SiO
2
nanoparticles on dielectric properties and corona resistance of epoxy composites. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wei Zhao
- College of Material Science and Engineering Harbin University of Science and Technology Harbin People's Republic of China
| | - Hao Chen
- College of Material Science and Engineering Harbin University of Science and Technology Harbin People's Republic of China
| | - Yong Fan
- College of Material Science and Engineering Harbin University of Science and Technology Harbin People's Republic of China
- Key Laboratory of Engineering Dielectric and its Application, Ministry of Education Harbin University of Science and Technology Harbin People's Republic of China
| | - Weiwei Cui
- College of Material Science and Engineering Harbin University of Science and Technology Harbin People's Republic of China
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15
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Li J, Chen P, Wang Y. Tribological and corrosion performance of epoxy resin composite coatings reinforced with graphene oxide and fly ash cenospheres. J Appl Polym Sci 2020. [DOI: 10.1002/app.50042] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jianchao Li
- School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Ping Chen
- School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 China
| | - Yuan Wang
- School of Mechanical Engineering University of Science and Technology Beijing Beijing 100083 China
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16
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Muralidhara B, Babu SPK, Suresha B. Studies on mechanical, thermal and tribological properties of carbon fibre-reinforced boron nitride-filled epoxy composites. HIGH PERFORM POLYM 2020. [DOI: 10.1177/0954008320929396] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This research focuses on the static mechanical, thermal and tribological properties of carbon fibre epoxy (CF/Ep) composites filled with boron nitride (BN) micro-filler powder (BN-CF/Ep). The mechanical properties studied were tensile, flexural, interlaminar shear strength and hardness. The thermal properties studied were dynamic mechanical and thermogravimetric analyses which were analysed through dynamic mechanical analyser and thermogravimetric analyser, respectively. The curing ability and dispersion of BN filler in the Ep and composites were investigated through differential scanning calorimetry, Fourier-transform infrared spectra and scanning electron microscopy. The tribological properties focused were three-body abrasion and dry sliding friction and wear conduct. Three-body abrasion tests were studied with silica sand of 212 µm particle size, 30 N load, 2.38 m s−1 sliding velocity and variable abrasive distances of 250 m, 500 m, 750 m and 1000 m. The dry sliding wear tests were performed using pin-on-disc (POD) wear experimental set-up with 60 N load, 3 m s−1 sliding velocity and variable sliding distances of 1000 m, 2000 m and 3000 m. The results followed the trend of BN1% > BN3% > BN5% composites in all mechanical properties. The carbon fabric reinforcement along with the BN-Ep matrix improved enormously all the mechanical properties except impact resistance. Further, it was exhibited that 1 wt% BN into CF/Ep prompts better mechanical properties with predominant damping capacity and thermal stability. Both the dry sand abrasive wear and POD test outcomes revealed that all BN-CF/Ep composites prompt predominant wear resistance. CF along with BN improves enormously the wear resistance with friction coefficient. Further, it was exhibited that 1 wt% BN into CF/Ep in both three-body abrasive and POD tests prompts better wear resistance. Generally speaking, it was presumed that BN-CF/Ep gracefully and successfully improved the mechanical, thermal and tribological properties and morphology of Ep for various mechanical, electrical components and load-bearing applications used in automotive and engineered applications.
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Affiliation(s)
- B Muralidhara
- Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India
| | - SP Kumaresh Babu
- Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India
| | - B Suresha
- Department of Mechanical Engineering, The National Institute of Engineering, Mysore, Karnataka, India
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17
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Li J, Zheng L, Sha X, Chen P. Microstructural and mechanical characteristics of graphene oxide‐fly ash cenosphere hybrid reinforced epoxy resin composites. J Appl Polym Sci 2018. [DOI: 10.1002/app.47173] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jian‐Chao Li
- School of Mechanical EngineeringUniversity of Science and Technology Beijing Beijing 100083 China
| | - Li‐Fang Zheng
- School of Mechanical EngineeringUniversity of Science and Technology Beijing Beijing 100083 China
| | - Xiao‐Hua Sha
- School of Engineering and TechnologyChina University of Geosciences (Beijing) Beijing 100083 China
| | - Ping Chen
- School of Mechanical EngineeringUniversity of Science and Technology Beijing Beijing 100083 China
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18
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Chen Y, Ma Y, Huang J, Zhang Z, Zhao D, Zhang X, Zhang B. Improvement of heat resistance and mechanical properties of epoxy resin with nano-Cu-Ni supported RGO. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1520248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yongheng Chen
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province, Harbin, China
| | - Yu Ma
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province, Harbin, China
| | - Jing Huang
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province, Harbin, China
| | - Zhixin Zhang
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province, Harbin, China
| | - Dongyu Zhao
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion, College of Heilongjiang Province, Harbin, China
| | - Xiwen Zhang
- School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
- Heilongjiang Academy of Sciences, Institute of Petrochemistry, Harbin, Heilongjiang PR China
| | - Bin Zhang
- Heilongjiang Academy of Sciences, Institute of Petrochemistry, Harbin, Heilongjiang PR China
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Xie Q, Fu K, Liang S, Liu B, Lu L, Yang X, Huang Z, Lü F. Micro-Structure and Thermomechanical Properties of Crosslinked Epoxy Composite Modified by Nano-SiO₂: A Molecular Dynamics Simulation. Polymers (Basel) 2018; 10:E801. [PMID: 30960726 PMCID: PMC6403537 DOI: 10.3390/polym10070801] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 07/19/2018] [Accepted: 07/19/2018] [Indexed: 01/15/2023] Open
Abstract
Establishing the relationship among the composition, structure and property of the associated materials at the molecular level is of great significance to the rational design of high-performance electrical insulating Epoxy Resin (EP) and its composites. In this paper, the molecular models of pure Diglycidyl Ether of Bisphenol A resin/Methyltetrahydrophthalic Anhydride (DGEBA/MTHPA) and their nanocomposites containing nano-SiO₂ with different particle sizes were constructed. The effects of nano-SiO₂ dopants and the crosslinked structure on the micro-structure and thermomechanical properties were investigated using molecular dynamics simulations. The results show that the increase of crosslinking density enhances the thermal and mechanical properties of pure EP and EP nanocomposites. In addition, doping nano-SiO₂ particles into EP can effectively improve the properties, as well, and the effectiveness is closely related to the particle size of nano-SiO₂. Moreover, the results indicate that the glass transition temperature (Tg) value increases with the decreasing particle size. Compared with pure EP, the Tg value of the 6.5 Å composite model increases by 6.68%. On the contrary, the variation of the Coefficient of Thermal Expansion (CTE) in the glassy state demonstrates the opposite trend compared with Tg. The CTE of the 10 Å composite model is the lowest, which is 7.70% less than that of pure EP. The mechanical properties first increase and then decrease with the decreasing particle size. Both the Young's modulus and shear modulus reach the maximum value at 7.6 Å, with noticeable increases by 12.60% and 8.72%, respectively compared to the pure EP. In addition, the thermal and mechanical properties are closely related to the Fraction of Free Volume (FFV) and Mean Squared Displacement (MSD). The crosslinking process and the nano-SiO₂ doping reduce the FFV and MSD value in the model, resulting in better thermal and mechanical properties.
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Affiliation(s)
- Qing Xie
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071000, China.
| | - Kexin Fu
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071000, China.
| | - Shaodong Liang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071000, China.
| | - Bowen Liu
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071000, China.
| | - Lu Lu
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071000, China.
| | - Xueming Yang
- Department of Power Engineering, North China Electric Power University, Baoding 071003, China.
| | - Zhengyong Huang
- State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China.
| | - Fangcheng Lü
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071000, China.
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