Dominant Role of Laser-Generated Nano-Structures on Enhancement of Interfacial Bonding Strength by Laser Surface Modification DOI
Hailang Wan, Shuangshuang Li,

Jianping Lin

et al.

Published: Jan. 1, 2023

Laser surface modification has been widely applied to the pre-treatment of material surfaces for interface bonding, however, there is inevitable risk environmental exposure laser-treated during engineering application, and evolution laser-induced modifications remains unclear under exposure. This study investigates robustness aluminum typical atmospheric aqueous environments with temperature varying from -40℃ 80℃. Although carbon elemental content water contact angle greatly fluctuate 23 at.% 33 at.%, 0° 148°, respectively, exhibit stable strength improvement ~25% compared untreated condition even after 30 days Notably, hygrothermal 80℃ 95%RH significantly declines bonding by ~45%, this degradation accompanied 1.8% increase ~150°. Results reveal that laser-generated nano-structures play crucial role in improvement, instead carbonaceous contaminants polarity, nanostructure transformation causes an apparent change fracture mode cohesive interface. work uncovers dominant enhancing interfacial strength, provides supports application laser modification.

Language: Английский

Decoupling fracture energy from crack area via surface patterning DOI Creative Commons
Ping Hu, Jianping Lin, Michal K. Budzik

et al.

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106066 - 106066

Published: March 1, 2025

Language: Английский

Citations

0
Three‐roll milling exfoliated graphite nanoplatelets enhanced epoxy resin matrix–octahedral spinel modified carbon fiber composites: Preparation, microstructure, and mechanical properties DOI Creative Commons

Cunhong Song,

Xiaolong Hou,

Juntong Huang

et al.

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Abstract This study aims to enhance the mechanical properties of epoxy resin (EP)‐based carbon fiber (CF) composites. Graphite nanoplatelets (GNPs) obtained from exfoliation expanded graphite (EG) were uniformly dispersed in EP using three‐roll milling (TRM) technology, ensuring GNPs well integrated with matrix. Additionally, surface modification CF octahedral magnesium‐aluminum (MA) spinel was investigated improve adhesion between and CF. The results showed that when incorporated at 1 wt% EP, resulting reinforced matrix composites (GNPs‐EP/CF) exhibited enhancements 26% 12% flexural tensile strengths, respectively, compared EP/CF Furthermore, modified a 1.5 MA solution produced MA‐spinel‐modified bonded TRM‐exfoliated GNPs, (GNPs‐EP/MA‐CF), which demonstrated 20.2% 14.6% increase over GNPs‐EP/CF research expands scope by functional oxides special structures provides theoretical foundation for developing advanced materials technologies aviation applications. Highlights Successful EG utilizing TRM EP. Achieve uniform dispersion tight binding modifies EP‐CF binding. bond crack extension energy.

Language: Английский

Citations

0
Experimental investigation and molecular simulation on the chemical bonding between laser-treated titanium alloy amorphous surface and epoxy adhesive DOI
Shuangshuang Li,

Jianping Lin,

Junying Min

et al.

The Journal of Adhesion, Journal Year: 2023, Volume and Issue: 101(1), P. 144 - 163

Published: Nov. 6, 2023

Laser surface modification is employed to enhance the interfacial bonding performance of metal-adhesive structures, and chemical plays a crucial role in achieving strong adhesion. Understanding mechanism between laser-treated metal adhesive at molecular/atomic scale key further optimizing performance. In this study, morphology composition laser-induced amorphous titanium oxide on alloy surfaces, as well its enhanced effect performance, were characterized using scanning electron microscopy, energy dispersive spectroscopy, single lap-shear testing.Through X – ray photoelectron spectroscopy analysis, experimental evidence provided for formation Ti-O-C bonds adhesive. Transmission microscopy observations molecular dynamics simulations reveal that non-bonding intereactions enables molecules fully infiltrate oxide, providing more sites bond formation. Density functional theory calculations demonstrate tend form dissociated hydroxyl group facilitated by relatively low reaction barrier. This promote structure interface.

Language: Английский

Citations

4
Stability Qualification of Resins/Metallic Oxide Composites for Surface Oxidative Protection DOI Open Access
Traian Zaharescu, Radu Mirea,

Tünde Borbáth

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(3), P. 333 - 333

Published: Jan. 25, 2024

The accelerated degradation of alkyd resins via γ-irradiation is investigated using non-isothermal chemiluminescence. stability qualification possible through the comparison emission intensities on a temperature range starting from 100 °C up to 250 under caused by radiolysis scission. measurements achieved in samples cured state resin modified various inorganic oxides reveal influence metallic traces aging amplitude, when thermal resistance increases as irradiation dose augmented. Even though unirradiated present prominent chemiluminescence intensity peak at 80 °C, γ-processed specimens show less intense spectra pristine materials and oxidation starts smoothly after 75 °C. values activation energies required for oxidative sample subjected kGy are significantly higher composite states than neat resin. mechanism polymerized discussed taking into account effects fillers studied epoxy temperatures crosslinking competition decay free radical.

Language: Английский

Citations

1
Dominant role of laser-generated nano-structures on enhancement of interfacial bonding strength by laser surface modification DOI
Hailang Wan, Shuangshuang Li,

Jianping Lin

et al.

Applied Surface Science, Journal Year: 2024, Volume and Issue: 657, P. 159708 - 159708

Published: Feb. 18, 2024

Language: Английский

Citations

1
Mechanical Properties of a Composition Based on Polyester Resin with Copper(I) Oxide Particles DOI
E. A. Bobina, М. П. Данилаев,

T. Ya. Deberdeev

et al.

Polymer Science Series D, Journal Year: 2024, Volume and Issue: 17(3), P. 748 - 753

Published: Sept. 1, 2024

Language: Английский

Citations

0
Comprehensive investigation of epoxy/graphene oxide/copper nanocomposites: experimental study and modeling-optimization of mechanical characteristics DOI

Mehran Mahouri,

Vali Parvaneh, Ali Dadrasi

et al.

Iranian Polymer Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 25, 2024

Language: Английский

Citations

0
Dominant Role of Laser-Generated Nano-Structures on Enhancement of Interfacial Bonding Strength by Laser Surface Modification DOI
Hailang Wan, Shuangshuang Li,

Jianping Lin

et al.

Published: Jan. 1, 2023

Laser surface modification has been widely applied to the pre-treatment of material surfaces for interface bonding, however, there is inevitable risk environmental exposure laser-treated during engineering application, and evolution laser-induced modifications remains unclear under exposure. This study investigates robustness aluminum typical atmospheric aqueous environments with temperature varying from -40℃ 80℃. Although carbon elemental content water contact angle greatly fluctuate 23 at.% 33 at.%, 0° 148°, respectively, exhibit stable strength improvement ~25% compared untreated condition even after 30 days Notably, hygrothermal 80℃ 95%RH significantly declines bonding by ~45%, this degradation accompanied 1.8% increase ~150°. Results reveal that laser-generated nano-structures play crucial role in improvement, instead carbonaceous contaminants polarity, nanostructure transformation causes an apparent change fracture mode cohesive interface. work uncovers dominant enhancing interfacial strength, provides supports application laser modification.

Language: Английский

Citations

0