New Insights in Adhesive Properties of Hybrid Epoxy-Silane Coatings for Aluminum Substrates: Effect of Composition and Preparation Methods

Silva, Amanda Alvarenga Coutinho; Gomes, Thayná Ipólito; Martins, Brenda Diane Pereira; Garcia, Renata Batista Rivero; Cividanes, Luciana De Simone; Kawachi, Elizabete Yoshie

doi:10.1007/s10904-020-01468-y

Cited by 15 publications

(6 citation statements)

References 28 publications

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“…It is known that the precursor type used in the sol-gel process to obtain nanoparticles significantly affects their structure [15,16]. In particular, the use of glycidoxypropyltriethoxysilane instead of TEOS can lead to the formation of less branched structures due to the loss of one ethoxysilane functionality, and, consequently, the potential silanol group that forms a siloxane bond in the polycondensation process.…”

Section: Resultsmentioning

confidence: 99%

Influence of 3-Glycidoxypropyltriethoxysilane on the Structural Organization of Epoxy-Silica Nanocomposites

et al. 2021

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The structural properties of epoxy-silica nanocomposites of anhydride curing synthesized by the sol-gel method were studied using small-angle X-ray scattering and electron microscopy. It was shown that the aggregation processes change significantly during the formation of sols of silica nanoparticles (SP) by using 3-glycidoxypropyltriethoxysilane (GPTES) in the presence and absence of an epoxy oligomer in the system. The fractal aggregate types of each structural level are identified and their sizes are determined by the fractal analysis. It was found that there is a two-level and three-level fractal organization for GPTES-based sols, formed in the presence of an epoxy oligomer, depending on the content of SP. At the same time, aggregates with an average size of 10-11 nm are formed at the first structural level; SP form aggregates with an average size of 65-70 nm at the second level, while the size of the third-level aggregates is more than 250 nm.

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Section: Resultsmentioning

confidence: 99%

Influence of 3-Glycidoxypropyltriethoxysilane on the Structural Organization of Epoxy-Silica Nanocomposites

et al. 2021

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“…The adhesive-coated Cu-clad phenol plate and PI film were embossed using a rubber roller. Such embossed samples were then heated at 70 °C in an oven for 20 h to continue polymerization gradually …”

Section: Methodsmentioning

confidence: 99%

Enhancing the Delamination Efficiency of Polyimide–Copper Bilayers with UV/Heat-Activated Foamable Adhesive: Insights and Applications

Khawdas,

Sawada,

Miyata

et al. 2024

ACS Appl. Mater. Interfaces

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This study explores the adhesive properties of copolymers comprising glycidyl methacrylate (GMA) and 3-(trimethoxysilyl)propyl methacrylate (MPTMS), focusing on their suitability for adhesive applications. Peel resistance measurements revealed a substantial impact of the GMA/MPTMS ratio on adhesion capabilities, identifying an optimal ratio of 30/70 for copolymerization with tert-butyl acrylate (tBA) to improve foaming performance. tBA, a foaming monomer activated by a photoacid generator and heat, enhances the copolymerized adhesive's adhesion strength and foamability for postuse delamination. Chemical structure analysis through Nuclear magnetic resonance (NMR) and Fourier-transform infrared spectroscopy (FTIR) confirmed successful polymerization, while rheological properties indicated decreased complex viscosity and adhesive strength with an increasing tBA content. The deprotection of the t-butyl group facilitated foam formation, supported by morphology analysis. These findings provide insights into foamable adhesive development with potential applications in delamination processes and implications for further exploration in polymer adhesion.

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“…Among organic coatings, the epoxy (EP) has been used extensively due to the superior features like good barrier properties against corrosive species, suitable adhesion, appropriate chemical, and mechanical resistances [8][9][10][11][12][13][14]. However, the lifetime of these coatings was decreased during immersion in corrosive media, which resulted in a diffusion of corrosive species at the metal/coating interface, initiating corrosion of the substrate beneath coating [15][16][17]. Therefore, improving the quality of the EP coating by organic and inorganic pigments has been attracting a lot of attention [13,[18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

The Effect of 2-Mercaptobenzimidazole-Polyaniline-CeO2 Ternary Nanocomposite Addition as a Superior Pigment for Improvement of Corrosion Resistance in Epoxy Coatings

Aboutalebi

Sefidi

Hosseini

et al. 2021

Preprint

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The 2-mercaptobenzimidazole-polyaniline-ceria (MBI-PANI-CeO2) ternary nanocomposite synthesized and used as pigment into epoxy (EP) to improve protection properties of coating on mild steel. The MBI-PANI-CeO2 nanocomposite was prepared using layer by layer assembly. Initially, the PANI layer was polymerized on the surface of CeO2 nanoparticles. Then, the MBI inhibitor was adsorbed on PANI with opposite electrostatic charges. The anticorrosive performance of EP coatings was investigated using electrochemical impedance spectroscopy, salt spray test, and scanning electron microscopy by incorporating various amounts (0.5, 1, and 2 wt. %) of the MBI-PANI-CeO2 nanocomposite. The EP coating containing 1 wt. % of nanocomposite showed the highest corrosion resistance and minimum agglomeration. This coating indicated the coating resistance of 19.1 MΩ cm2, which is greater than EP and EP/CeO2 coatings. The EP/MBI-PANI-CeO2 (1 wt. %) coating showed water uptake percentage (2.09 %) about two times lower than EP/CeO2 coatings (4.56 wt. %), indicating appropriate barrier performance of inhibitor incorporated EP.

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New Insights in Adhesive Properties of Hybrid Epoxy-Silane Coatings for Aluminum Substrates: Effect of Composition and Preparation Methods

Cited by 15 publications

References 28 publications

Influence of 3-Glycidoxypropyltriethoxysilane on the Structural Organization of Epoxy-Silica Nanocomposites

Influence of 3-Glycidoxypropyltriethoxysilane on the Structural Organization of Epoxy-Silica Nanocomposites

Enhancing the Delamination Efficiency of Polyimide–Copper Bilayers with UV/Heat-Activated Foamable Adhesive: Insights and Applications

The Effect of 2-Mercaptobenzimidazole-Polyaniline-CeO2 Ternary Nanocomposite Addition as a Superior Pigment for Improvement of Corrosion Resistance in Epoxy Coatings

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