Materials
·
2023
·Vol. 16
·期 18
·6221
·
IF 3.4
Junxue Chen,Zheng Chen,Junjiao Yang
The corrosion resistance of zinc–aluminum–magnesium steel plates (Zn–Al–Mg steel plates) is significantly higher than that of galvanized steel plates. However, the unsatisfactory bonding performance of Zn–Al–Mg steel plates significantly limits their widespread application. In this study, X-ray photoelectron spectroscopy is employed to detect changes in the surface oxygen content of Zn–Al–Mg steel plates after different temperature treatments to confirm the existence of surface loose layers. In particular, changes in the surface oxygen content of the Zn–Al–Mg steel plates after the oxide layer is removed are investigated under saturated H2O vapor and O2environmental conditions, and the cause of the formation of loose surface layers is determined. The uneven distribution of elements on the surface of the Zn–Al–Mg steel plates is investigated with scanning electron microscopy and energy dispersive spectroscopy. Nuclear magnetic resonance is employed to determine the size of the network spatial structure formed by silane coupling agents under different hydrolysis conditions and to further investigate the bonding performance of hydrolysate-modified Zn–Al–Mg steel plates. Several typical automotive adhesives are utilized to compare and examine the changes in the tensile strength of the Zn–Al–Mg steel plate bonding before and after modification with the silane coupling agent and analyze the structural damage of the adhesive at the bonding interface. The results confirm that the silane coupling agent strengthens the loose layer on the surface of the Zn–Al–Mg steel plate.Keywords:zinc–aluminum–magnesium steel plate;loose layer;silane coupling agent
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
·
2014
·Vol. 71
·期 2
·246-253
·
IF 1.547
Liu Jian-Guo,Xu Liang,Fang Yong-Qin
Novel hybrid organic–inorganic coatings with interpenetrating network were synthesized by the acid-catalyzed hydrolytic co-polycondensation of tetraethoxysilane and 3-metacryloxypropyltrimethoxysilane, followed by radical polymerization with methyl methacrylate and triallyl isocyanurate (TAIC). The hybrid coatings were characterized by Fourier transformed infrared spectroscopy, thermogravimetric analysis and scanning electron microscope, and their anti-corrosion behaviors were evaluated by potentiodynamic polarization, electrochemical impedance spectroscopy and salt spray test. The results indicated that the hybrid coatings exhibited excellent anti-corrosion ability by forming a physical barrier between metal and its external environment. Thermal stability of the hybrid coatings was increased after the addition of TAIC. Furthermore, hydrophobic properties of the hybrid coatings were examined by measuring the contact angles, and the change in wetting characteristics of the hybrid coatings was not obvious.
研究领域:
材料科学
·
表面工程
·
腐蚀防护
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Yunlong Sang,Qi Liu,Shengxing Wang,Shuhan Dong,Yongzhe Fan,Xue Zhao,Shijie Li
Polyaniline (PANI) was covalently linked with hexagonal boron nitride (BN) using p-aminobenzoic acid (ABA) to obtain a PANI-BN powder. The PANI-BN/EP coating was applied on hot-dip galvanized steel, which exhibited remarkable corrosion resistance. Electrochemical test results showed that the impedance modulus in the low-frequency region of PANI-BN/EP was maximum after soaking in NaCl solution (3.5 wt.%) for 72 h compared with other coatings. The outstanding corrosion resistance of the PANI-BN/EP coating was primarily attributed to the synergistic effect of BN and PANI.
研究领域:
材料科学
·
防腐蚀工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
·
2018
·
IF 3.165
Fanlei Kong,Zhihong Nie,Zhongpo Liu,Shibin Hou,Jiangfeng Ji
The technique of anterior cervical corpectomy and fusion (ACCF) for strut grafting has become a widespread and actively applied for many cervical complaints including cervical degeneration of the intervertebral disks , cervical trauma , cancer, rheumatoid arthritis and multilevel cervical spondylotic diseases. To avoid the complications of the old techniques, the construct stability and long anterior screw-plate designs of the bone strut have been improved by using effective biomaterials. The nanostructured hydroxyapatite (HAp) incorporated with biocompatible polymer matrixes is an effective biomedical material and creating a functional properties applied for different tissue replacements such as dental, hips, knees , tendon and ligaments and tissue repair for maxillofacial reconstruction , stabilization of the jaw bone and spinal fusion . In the present investigation, we have successfully designed cylindrical nano titanium dioxide (n-TiO 2 ) interbody fusion with anterior plate fixation . The n-TiO 2 incorporated HAp/ Polyetheretherketone (PEEK) nanocomposite strut has a superior mechanical properties and larger contact area with high fusion rates as compared with the HAp/PEEK strut in the absence of n-TiO 2 nanoparticles . It is highly able to provide appropriate strength and biological activity similar to the conventional titanium cage and also mainly it has been minimizes subsidence value. The synthesized novel material of n-TiO2 incorporated HAp/PEEK nanocomposite strut is scientifically given effective outcomes for fusion and reconstruction of the ACCF.
研究领域:
生物医学工程
·
骨科手术
·
材料科学
✓ 已验证
DOI
高影响因子
Nano Materials Science
·
2024
·
IF 12.6
Sang Xiong,Chenyi Yan,Yue Qi
A solvothermal approach was used to generate N-doped graphene oxide quantum dots (NGOQDs) using MoS 2 and Al 2 O 3 nanocomposites. Through the use of TEM, XRD, Raman, ATR-FTIR, and XPS, the produced composites' shape, composition, and structure were described. Tribological behavior and lubrication properties of NGOQDs-MoS 2 and NGOQDs-Al 2 O 3 nanocomposites as additive in nanofluids during hot roll cladding of copper and steel were studied and rolling lubrication mechanism was disclosed. The outcome demonstrates that tribological performance may be greatly enhanced by combining NGOQDs, and surface quality of the rolled copper and steel, and the addition of NGOQDs-MoS 2 and NGOQDs-Al 2 O 3 nanoparticles can further improve the hot-rolling lubrication properties. The tribofilm, formed through the tribochemically induced lubrication process, significantly enhances the wear and corrosion resistance of rolled copper and steel surfaces.
研究领域:
材料科学
·
机械工程
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Ai Ping Zhang,Cheng Dong,Shang Ke Yang,Hai Lan Lin,Wei Zhao,De Li,Yan Cheng Wang,Jun Bian,Ke Yang Ni,Dai Qiang Chen
To broaden the advanced applications of polybenzoxazine resin in the field of metal corrosion protection, main chain benzoxazine (BA-ddm) and diamine benzoxazine (Ph-hda) were first synthesized and then compounded to fabricate copolymer (PB5). Simultaneously, polyetheramine (PEA) grafted hexagonal boron nitride (h-BN) nanosheets (PEA- g -BNNS) were prepared by chemical exfoliation and surface modification through Lewis acid–base interaction. PEA- g -BNNS was subsequently blended with PB5 copolymer solution, followed by coating and thermal curing on the surface of tinplate to obtain PEA- g -BNNS/PBZ nanocomposite coatings. The structure and morphology of PBZ nanocomposite coatings were investigated by FTIR, XRD, 1 HNMR, and HRSEM. The hydrophilicity-hydrophobicity, thermal stability, and corrosion resistance of PBZ nanocomposite coatings were characterized through contact angle, TGA, and electrochemical tests. Microstructure characterization results of fillers and PBZ nanocomposite coatings verified the successful functionalization of PEA- g -BNNS and fabrication of PBZ nanocomposite coatings. The contact angle of PEA- g -BNNS/PBZ coatings reached up to 119.6°. The TGA test showed that the 2% PEA- g -BNNS/PBZ coating had excellent thermal stability. The electrochemical test showed that the PEA- g -BNNS/PBZ coating had good corrosion resistance. Among them, the 2% PEA- g -BNNS/PBZ coating exhibited the best anti-corrosion performance. Even when immersed in 3.5 wt.% NaCl solution for 20 days, the |Z| 0.01 Hz value remained 2.00 × 10 10 Ω cm 2 .
研究领域:
材料科学
·
纳米技术
·
高分子科学
·
表面工程
·
防腐蚀保护
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）