APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Yue Liu,Meng Cai,ZhiHui Xie,Liangliang Xiong,Xiaoqiang Fan,Minhao Zhu
Graphene Oxide (GO) nanosheets show great potential in the field of corrosion protection owing to their lamellar structure and remarkable mechanical features. However, these nanosheets are highly susceptible to agglomerating in waterborne epoxy resin (EP) matrix, which results in their structure degradation and restricts their application in anti-corrosion field. To address this challenge, a novel approach is employed in this study, involving the synthesis of multiple molecular chains (PEI and EDTA) grafted GO nanosheets (designated as EAGO), and subsequently chelated with cerium cations (CEAGO). The grafting of multiple molecular chains solves the agglomeration phenomenon of GO nanosheets during the coating preparation process. Such an advanced structural design is crucial for corrosion protective coatings since the unique structure of grafted EDTA enables effective chelating of corrosion inhibitors to provide anti-corrosion and self-healing features, while the steric hindrance effect of multiple molecular chains restricts the mobility of EP molecular chains, thereby enhancing anti-wear properties. The CEAGO/EP coating achieves a corrosion protection efficiency of up to 96.53%, and the wear rate of the CEAGO/EP coating is approximately 62.88% lower than that of pure EP. Electrochemical Impedance Spectroscopy (EIS) and White-light interferometer (WLI) results demonstrated that the epoxy coating loaded with CEAGO nanosheets could provide robust corrosion protection and wear resistance for 6082 aluminum alloy.
研究领域:
材料科学
·
腐蚀与防护
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
PETROLEUM SCIENCE AND TECHNOLOGY
·
2023
·
IF 1.5
Jue Wang,Heng Zhang,Wei Wu,Zeyun Wang
Use of the synergistic effect between nanomaterials and ionic liquids is of great significance for designing high-performance lubricating materials. In this work, Zn-MOF/[P88814]DEHP (zinc complexes with 2-aminoterephthalic acid nanosheets/trioctyltetradecylphosphonium bis (2-ethylhexyl) phosphate) composites were successfully synthesized by grinding the mixture of [P88814]DEHP and Zn-MOF with different mass ratios and evaluated as a new kind of the white oil additive using a four-ball testing machine. Results demonstrate that the optimal mass ratio of Zn-MOF to [P88814]DEHP was 1:1 and the Zn-MOF/[P88814]DEHP composite with 2.0 wt% addition amount into the white oil significantly reduced friction coefficient and wear. Such obvious friction-reducing and outstanding anti-wear properties of Zn-MOF/[P88814]DEHP composite could be attributed to the synergistic lubrication between Zn-MOF and [P88814]DEHP. This work investigated the synergistic lubrication between MOFs and ILs, which provided a new idea for designing and preparing new lubricating oil additives.
研究领域:
材料科学
·
润滑工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2025
·
IF 7.3
Jiahe Wang,Qunfeng Zeng,Haolin Li,Zeming Pang,Wanjun He,Jiansen Hao
Aircraft engines are subject to salt spray erosion in marine environments, and the protection of bearings faces a dual challenge of anti-wear and anti-corrosion. This paper was inspired by mussels and prepared a polydopamine nano-SiO 2 modified stearic acid composite organic coating on the surface of bearing steel by in-situ polymerization. The results indicate that the composite coating has excellent corrosion resistance in seawater, reducing the current density from 3.87 × 10 −5 A/cm 2 to 2.13 × 10 −7 A/cm 2 . The biomimetic microstructure effectively enhances the hydrophobicity of the coating, increasing the contact angle from 76.84° to 145.1°. The composite coating exhibits plastic deformation under high stress conditions of 17.55 GPa, with a stable friction coefficient between 0.11 and 0.12. According to first principles calculations, polydopamine as an intermediate layer increases the minimum interfacial energy from 14.11 kJ/mol to 23.96 kJ/mol. This polymer dopamine nano-SiO 2 modified stearic acid composite organic coating is expected to be used in moving parts such as aircraft bearings to reduce corrosion and wear, and extend service life.
研究领域:
材料科学
·
仿生学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2016
·Vol. 52
·期 8
·4483-4492
·
IF 2.302
Lu Hongsheng,Tang Weiwei,Liu Xiang,Wang Baogang,Huang Zhiyu
The oleylamine (OA)-modified carbon nanoparticles (CPs -OA ) with particle sizes of 25–35 nm were synthesized by a facile one-pot pyrolysis method. As the OA molecules were covalently attached on the surfaces of CPs -OA , the CPs -OA exhibited good dispersibility in polyalphaolefin (PAO). Then the tribological behaviors of CPs -OA as the lubricating additives of PAO were investigated in detail. Under the four-ball mode and the load of 392 N, the CPs -OA showed the best friction-reducing and antiwear properties at the optimal concentration of 1.0 wt%. Specifically, in comparison with that of pure PAO, the mean friction coefficient and mean wear scar diameter of the 1.0 wt% CPs -OA /PAO suspension reduced by 47 and 30%, respectively. The friction-reducing and antiwear capabilities of CPs -OA strengthened with increasing load from 200 to 392 N and increasing test time from 240 to 480 min. In addition, the CPs -OA -based additives could work for a long time without weakening the lubrication capability. The synergistic effect of tribofilm, including PAO molecules and the CPs -OA layer, might account for the outstanding friction-reducing and antiwear capabilities of CPs -OA -based additives under boundary lubrication.
研究领域:
材料科学
·
润滑工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Xiangkang Cao,Guangyi Cai,Yicong Wang,Jinglong Pan,Xinxin Zhang,Zehua Dong
Polybenzoxazine (PBZ) is a kind of high corrosion-resistant polymer, however, the brittleness and weak adhesion strength of PBZ have puzzled their applications. In this work, we introduced ether amine molecules into benzoxazine monomers via molecule design, and then copolymerized them with tannic acid (TA) to realize flexible PB-TA coating systems, aiming at achieving durable corrosion and abrasion protection for steel structures. It is found that the PB-TA copolymer gains favorable plasticity up to 39.44 % elongation. Meanwhile, TA provides more active sites and stronger hydrogen bond interaction, which increases the crosslinking density of PB-TA coating and achieves a high adhesion strength (13.57 MPa) to the mild steel substrate. Further experiments evidence that the PB-6TA coating (with 6 % mass of TA addition in the PBZ) presents high corrosion resistance (>10 9 Ω.cm 2 after 600 h salt spraying test), far beyond polyurethane and epoxy resin coatings. Also, the PB-6TA coating exhibits a higher anti-friction ability during cyclic wear corrosion test than the pristine PBZ coating. It is expected that this work may help boost the development of polybenzoxazine-based coatings with long-term corrosion resistance in harsh marine environments.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
·
2023
·
IF 2.9
Feng Qing,Yang Jing,Dou Mingyuan,Zou Shuai,Wei Lixia,Huang Fuchuan
To achieve the goal of developing high-performance lubricant additives for industrial lubrication. Herein, tetradecylphosphonic acid (TDPA) modified Ti 3 C 2 T X and graphene oxide (GO) were used as nanohybrid lubricant additives in the polyalphaolefins base oil (PAO6). The high-speed reciprocating friction and wear test shows that TDPA–Ti 3 C 2 /GO is an efficient friction-reduction and antiwear additive. The base oil mixed with 0.05 wt%TDPA–Ti 3 C 2 /0.05 wt% GO exhibits the lowest coefficient of friction (COF) and wear rate with the value of 0.09 and 4.4 × 10 –6 mm 3 /Nm, decreased by 54.5 and 90.0% compared with pure PAO6 oil, respectively. Detailed characterization analysis shows that the tribological film of the modified TDPA–Ti 3 C 2 /GO nanohybrids oil-lubricated surface was mainly composed of PAO6, TDPA, GO, and iron oxide. This indicates that the friction-reduction and antiwear mechanism of TDPA–Ti 3 C 2 /GO in base oil lies in the adsorption of the two nanomaterials and the formation of a self-lubricating film on the rubbing interface. This study provides a new approach to the design of nanohybrid lubricant additives and creates new prospects for the application of nanomaterials in tribology.
研究领域:
材料科学
·
摩擦学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2025
·
IF 8.9
Long Yi,Shijie Song,Ying Liu
The incompatibility of nanomaterials with resin and the irreversibility of coatings after damage severely limit the anti-corrosion and anti-wear properties of epoxy coatings. Hence, in this work, a f-BNNs-ZB@AFD-EP composite coating with active/passive self-healing properties was prepared to provide excellent corrosion and wear protection. Boron nitride nanosheets with a high aspect ratio were prepared by mechanical exfoliation, and their compatibility with resin was enhanced by polyethyleneimine. The release of benzotriazole from the zeolitic imidazolate framework on the nanosheets and the reconnection of disulfide bond provided excellent active/passive self-healing properties. Moreover, the coating resistance of f-BNNs-ZB@AFD-EP (2.49 × 10 7 Ω⋅cm 2 ) was increased by three orders of magnitude pure epoxy coating (7.95 × 10 5 Ω⋅cm 2 ). Meanwhile, the friction coefficient (0.64) and wear rate (5.00 × 10 −5 mm 3 /N·m) of f-BNNs-ZB@AFD-EP were lower than that of pure composite coating (0.78, 3.50 × 10 −4 mm 3 /N·m). The f-BNNs-ZB@AFD-EP with outstanding properties has great application prospects in the field of material protection.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Extreme Manufacturing
·
2024
·Vol. 7
·期 1
·015004
·
IF 16.1
Jialiang Zhang,Fangzheng Ren,Qing Yang,Qingyun Ma,Jie Liang,Yizhao Meng,Xiaodan Gou,Chongxiao Xia,Feng Chen
Transparent materials utilized as underwater optical windows are highly vulnerable to various forms of pollution or abrasion due to their intrinsic hydrophilic properties. This susceptibility is particularly pronounced in underwater environments where pollutants can impede the operation of these optical devices, significantly degrading or even compromising their optical properties. The glass catfish, known for its remarkable transparency in water, maintains surface cleanliness and clarity despite exposure to contaminants, impurities abrasion, and hydraulic pressure. Inspired by the glass catfish's natural attributes, this study introduces a new solution named subaquatic abrasion-resistant and anti-fouling window (SAAW). Utilizing femtosecond laser ablation and electrodeposition, the SAAW is engineered by embedding fine metal bone structures into a transparent substrate and anti-fouling sliding layer, akin to the sturdy bones among catfish's body. This approach significantly bolsters the window's abrasion resistance and anti-fouling performance while maintaining high light transmittance. The sliding layer on the SAAW's surface remarkably reduces the friction of various liquids, which is the reason that SAAW owns the great anti-fouling property. The SAAW demonstrates outstanding optical clarity even after enduring hundreds of sandpaper abrasions, attributing to the fine metal bone structures bearing all external forces and protecting the sliding layer of SAAW. Furthermore, it exhibits exceptional resistance to biological adhesion and underwater pressure. In a green algae environment, the window remains clean with minimal change in transmittance over one month. Moreover, it retains its wettability and anti-fouling properties when subjected to a depth of 30 m of underwater pressure for 30 d. Hence, the SAAW prepared by femtosecond laser ablation and electrodeposition presents a promising strategy for developing stable optical windows in liquid environments.
研究领域:
材料科学
·
仿生学
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2021
·
IF 3.383
Weiwei Tang,Baogang Wang,Guiqiang Wen,Yufeng Li
The tribolgical performance of amphipathic carbon dots (A-CDs) originated from lauryl gallate as lubricant additives of polyethylene glycol (PEG200) was investigated in detail under the ball-on-disk reciprocating slide mode and steel/steel contact. The A-CDs exhibited distinguished long-term friction reduction and wear resistance functions under specific conditions. Typically, 2 wt% of A-CDs made the average friction coefficient and wear volume of wear track lubricated with PEG200 reduce by 51.4% and 84.4%, respectively, under the mild load of 40 N and long duration of 200 min. The worn surface analyses demonstrated that the A-CDs could be uninterruptedly deposited and smeared onto the contact areas of friction pairs, which induced the gradually formation of compact boundary lubrication films. Under the mild load, the homogeneous lubrication films were thick and robust enough to absolutely avoid the direct collisions of asperities on the sliding interfaces, well accounting for the impressive long-term friction-reducing and anti-wear abilities of A-CDs. The A-CDs offer great application potential in the field of lubricant additives due to their high lubricating performance, long service life and environmentally friendliness.
研究领域:
材料科学
·
化学工程
·
机械工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Biru Shi,Haohao Wu,Dekun Sheng,Wenhua Zhang,Xinxin Tian,Yinglu Sun,Haopu Xie,Jiahui Zhong,Xiangdong Liu,Yuming Yang
Disulfide bonds are widely used in self-healing materials owing to their dynamic nature under mild conditions. However, their practical application is severely limited by their low tensile strength . In this work, a linear polyurethane (CHPU) containing disulfide bonds and crystalline polycaprolactone diol is designed and synthesized. The infiltration of polypyrrole (PPy) nanoparticles endows the CHPU/0.5PPy nanocomposites with a high tensile strength (26.23 MPa), high toughness (119.71 MJ/m 3 ), and a remote self-healing ability that can be triggered by heat or low-intensity (near-infrared) NIR radiation. A cut CHPU/0.5PPy film can recover 77.35% and 64.77% of its original tensile strength under 808 nm NIR radiation (118.46 mW/cm 2 ) and 50 °C, respectively. In addition, CHPU/0.5PPy can bear 300 reciprocating linear abrasion cycles (0.5 N load force) with a stable friction coefficient, delivering a performance superior to those of many commercial anti-abrasion polyurethane coatings.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2023
·Vol. 25
·期 20
·2300703
·
IF 3.6
Yike Li,Zhenhua Wu,Congcan Shi,Yizhuo Xu,Aotian Chen,Bin Su
Flush toilets waste a significant amount of water every day due to the unavoidable adhesions between human waste and the toilet surfaces. Super-slippery surfaces can repel complex fluids and various viscoelastic solids, however, are easily broken by mechanical abrasions. Herein, the fabrication of an abrasion-resistant super-slippery flush toilet (ARSFT) is reported using a selective laser sintering 3D printing technology. Unlike traditional super-slippery surfaces with limited thicknesses which can be easily worn away, the powder-sintered strategy endows the ARSFT not only with a self-supporting 3D complex shape but also with a porous structure that can accommodate considerable lubricants for an abrasion-resistant super-slippery property. As a result, the as-prepared ARSFT remains clean after contacting with various liquids such as milk, yogurt, highly sticky honey, and starch gel mixed congee, demonstrating excellent repellence to complex fluids. Besides liquids, the ARSFT exhibits a high resistance to sticky synthetic feces. Notably, even after being abraded to 1,000 cycles of abrasion using sandpaper, the ARSFT maintains its record-breaking super-slippery capability. The concept of the 3D-printed object with a superior abrasion-resistant slippery ability will improve the development of super-slippery materials and further save water consumption in the human society.
研究领域:
材料科学
·
环境工程
·
制造技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Hongyang Wang,Bo Zhao,Rui Dong,Ping Wen,Mingjin Fan
It is, in fact, inevitable for steel to be covered with a layer of iron oxides and/or peroxides on its surface. However, knowledge of its existence and functionality for tribological behaviors is usually ignored. Herein, covalent-organic framework nanomaterials (CONs) composed of three well-screened acceptors and a donor through the imide linkage were fabricated to explore their lubrication performances. The results indicate that the energy-level matching between CONs and iron oxides or peroxides leads to the formation of a Z-scheme heterojunction structure at the rubbing interface. Also, the friction produces an internal electric field in the heterojunction, which drives the negative atomic/ionic species from the sliding interface to immigrate into the pore of CONs and resettle inside to engender the pinning effects, producing a fixed lubrication layer. Synchronously, it also attracts the free CONs in the base oil to form an easy-shear lubrication layer assembling onto the fixed one, producing a lubrication film with two layered configurations. Finally, the unique lubrication film, despite its thickness of a dozen nanometers, still exhibits impressive friction reduction and antiwear. This finding will inspire the technology to utilize the intrinsic surface nature of steel materials to exploit lubricant additives or modulate tribological behaviors.
研究领域:
材料科学
·
表面工程
·
摩擦学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）