Enhancing interfacial strength between AA5083 and cryogenic adhesive via anodic oxidation and silanization

Pan, Lijun; Zhang, Aiai; Zheng, Zengmin; Duan, Lixiang; Zhang, Lei; Shi, Yu; Tao, Jie

doi:10.1016/j.ijadhadh.2018.04.006

Cited by 11 publications

(2 citation statements)

References 23 publications

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“…In the silanization process, the Si atom formed the Si-O-Al bond with the surface of the Al alloy by condensation reaction, and thus the silane coupling agent was grafted. An increase of the Si content confirms that the silane coupling agent was successfully grafted on the surface of the 7075 Al alloy sheet [17]. The results illustrate that the surface of the Al alloy sheet was successfully modified by the silane coupling agent, which served as a bridge for joining the organic adhesive to the inorganic Al alloy.…”

Section: Surface Compositionsupporting

confidence: 53%

Effect of Ultrasonic Vibration on Adhesive Bonding of CFRP/Al Alloy Joints Grafted with Silane Coupling Agent

Tong

Wang

et al. 2020

Polymers

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Adhesive bonding is widely used in the joining of metals and carbon fiber-reinforced plastics (CFRPs). Ultrasonic vibration was used to improve adhesive bonding of CFRP/Al alloy joints grafted with silane coupling agent, and the effect of the ultrasound on the bonding was studied. The surface of Al alloy was treated with a silane coupling agent, and then the ultrasonic vibration was applied on the adherend during the adhesive bonding process. The shear strength was tested, and the mechanism was analyzed by scanning electron microscope (SEM) and Fourier transform infrared spectrometer (FTIR). It is found that the ultrasonic assisting can further promote the bonding of the Al alloy and the adhesive. For the test joins, the shear strength was increased by 267.50% using the silanization treatment plus the ultrasonic assisting. The ultrasonic assisting promoted the grafted epoxy group to react with the adhesive more sufficiently at the Al/adhesive interface by causing micro-mixing and intensified molecule collision, and thus more chemical bond was formed. Under the ultrasonic action, the interface and the adhesive layer became tighter owing to the impact contact at the interface and the oscillating flow in the adhesive layer. The ultrasonic vibration assisting increased the bonding strength by promoting the chemical bond and improving physical morphology.

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Section: Surface Compositionsupporting

confidence: 53%

Effect of Ultrasonic Vibration on Adhesive Bonding of CFRP/Al Alloy Joints Grafted with Silane Coupling Agent

Tong

Wang

et al. 2020

Polymers

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“…Although, synthesizing the Aluminum Oxide nanostructures in large volume for industrial applications, due to their expensive and time consuming production methods such as: chemical vapor deposition (CVD) techniques or electrophoretic based methods [22][23][24][25][26][27][28][29][30][31][32], limited their application for opteoelectronic devices or water purification technologies. On the other hand, novel fabrication techniques such as electrochemical anodization methods have shown more accurate controllability over materials morphology and chemical composition of nanostructures in comparison to conventional production techniques as well as their easier scalability for industrial applications [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52]. As a result, the electrochemical anodization techniques have a potential to pave the way for the industrial scale production of nanostructures with a highly controlled morphology as well as their chemical composition and crystalline structure [53].…”

Section: Introductionmentioning

confidence: 99%

Synthesizing high aspect ratio Aluminum Oxide nanowires from highly-ordered anodic self-assembled templates

Ghezghapan¹,

Saba²

2018

Preprint

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Aluminum Oxide and its nanostructures are attracted the attention of researchers due to their special materials properties such as: high electrical insulation, high mechanical strength, corrosion resistance, chemical stability, and low thermal conductivity. Furthermore, Aluminum Oxide nanowires shows large surface area as well as highly electropositive surface, which makes them suitable candidates for water purification technology applications. One of the main challenges, which limited the usage of Aluminum Oxide nanowires, is high cost and complex fabrication methods for Aluminum Oxide synthesizing such as chemical vapor deposition (CVD) techniques. On the other hand, electrochemical methods such as anodizing/etching techniques show high controllability over chemical composition, morphology,and crystalline structure of nanowires. In this research, a room temperature two-steps anodization procedure is developed to fabricate a highly-ordered self-assembled templates. Furthermore, the etching method is used to convert this synthesized self-assembled template into Aluminum Oxide nanowires. The results show that the proposed electrochemical method maintains a highly-ordered morphology as well as industrially acceptable controllability over crystalline structure of nanowires, which could be used to optimize the procedure for industrial applications due to low cost and simple experimental setup.

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Preparation and properties of modified graphene oxide incorporated waterborne polyurethane acrylate

Yin

Muhammad

et al. 2019

Polymer International

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In this study, a new modifier (KPG) was prepared by modifying graphene oxide with -glycidoxypropyl trimethoxysilane (KH560) and polydimethylsiloxane (PDMS). KPG was in turn added to aqueous urethane acrylate for the fabrication of waterborne polyurethane polyacrylate emulsion modified with KH560-PDMS composite (KPG/WPUA). Textural characterizations of the KPG/WPUA coating were achieved via Fourier transform infrared, SEM, TGA and AFM techniques, which revealed that the KPG/WPUA film possessed a smooth surface. The synthesized KPG/WPUA films were tested for mechanical properties, hydrophobicity and acid/water corrosion performance which suggested their highly hydrophobic surface. KPG/WPUA with 0.1% KPG showed a contact angle of 118.35 ∘ , 30.35 ∘ higher than that of pristine WPUA. The KPG/WPUA film exhibited higher thermal stability, i.e. a 5% weight loss temperature of 305 ∘ C, which was 30 ∘ C higher than that of pristine WPUA film. The Young's modulus and elongation at break of the KPG/WPUA film were 34.1 MPa and 74.88% respectively, which were higher than that of WPUA film. Furthermore, KPG/WPUA films exhibited greater resistance (without obvious blistering and the white spotting phenomenon) to H 2 O 2 , HCl and water corrosion than pristine WPUA. The superior performance of KPG/WPUA films was attributed to the network chain structure formed upon the introduction of KPG into WPUA. The outstanding performance of KPG/WPUA films in terms of mechanical properties, thermal stability and high resistance to acidic and water corrosion makes them interesting alternative contenders for target applications.

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Enhancing interfacial strength between AA5083 and cryogenic adhesive via anodic oxidation and silanization

Cited by 11 publications

References 23 publications

Effect of Ultrasonic Vibration on Adhesive Bonding of CFRP/Al Alloy Joints Grafted with Silane Coupling Agent

Effect of Ultrasonic Vibration on Adhesive Bonding of CFRP/Al Alloy Joints Grafted with Silane Coupling Agent

Synthesizing high aspect ratio Aluminum Oxide nanowires from highly-ordered anodic self-assembled templates

Preparation and properties of modified graphene oxide incorporated waterborne polyurethane acrylate

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