Plasma polymer for enhancing adhesion bonds of a metal/elastomer assembly

Ji, Marisol; Benyahia, Lazhar; Poncin-Epaillard, Fabienne

doi:10.1002/ppap.202100035

Cited by 4 publications

(4 citation statements)

References 49 publications

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“…Mainly, C 2 H 2derived polymer-like coatings (RF plasma at 133 Pa, mixed with Ar, N 2 , or O 2 ) have been studied that promote adhesion between steel and the rubber compound due to diffusion of sulfur from the rubber forming iron sulfide [200]. While thickness and crosslinking degree of the hydrocarbon PPF needs to be adjusted, another important aspect in metal-elastomer bonding is the thermodynamic adhesion, that is, the surface energy of the adhesive joint should be closer to the elastomer one, which has been verified for aluminum-polyacrylonitrile butadiene rubber assemblies [201]. Furthermore, the retention of unsaturated carbon in the PPF is of essential importance for crosslinking with the rubber.…”

Section: Deposition Of Polymer-like Soft Plasma Coatingsmentioning

confidence: 99%

Plasma surface engineering for manmade soft materials: a review

Hegemann¹,

Gaiser²

2021

J. Phys. D: Appl. Phys.

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Manmade soft materials are important in a wide range of technological applications and play a key role in the development of future technologies, mainly at the interface of synthetic and biological components. They include gels and hydrogels, elastomers, structural and packaging materials, micro and nanoparticles as well as biological materials. Soft materials can be distinguished from liquids owing to their defined shape and from hard materials by the deformability of their shape. This review article provides an overview of recent progress on the plasma engineering and processing of softer materials, especially in the area of synthesis, surface modification, etching, and deposition. The article aims to demonstrate the extensive range of plasma surface engineering as used to form, modify, and coat soft materials focusing on material properties and potential applications. In general, the plasma provides highly energetic, non-equilibrium conditions at material surfaces requiring to adjust the conditions for plasma-surface interaction to account for the specifics of soft matter, which holds independent of the used plasma source. Plasma-induced crosslinking and polymerization of liquids is discussed to transform them into gel-like materials as well as to modify the surface region of viscous liquids. A major field covers the plasma surface engineering of manmade soft materials with the help of gaseous reactive species yielding ablation, nanostructuring, functionalization, crosslinking, stiffening, and/or deposition to obtain demanded surface properties or adhesion to dissimilar materials. Finally, plasma engineering of rigid materials is considered to induce surface softening for the enhanced contact with tissues, to allow interaction in aqueous media, and to support bonding to soft matter. The potential and future perspectives of plasma engineering will be discussed in this review to contribute to a higher knowledge of plasma interaction with sensitive materials such as soft matter.

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Section: Deposition Of Polymer-like Soft Plasma Coatingsmentioning

confidence: 99%

Plasma surface engineering for manmade soft materials: a review

Hegemann¹,

Gaiser²

2021

J. Phys. D: Appl. Phys.

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“…On the contrary, a peak at 2160 cm −1 is assigned to the disubstituted C–C alkyne. [ 17 ] This mode is also present in Experiment A, but not in Experiments B and C. Also appearing in Experiment B and not in Experiments A and C and simulation is the presence of the CO 2 line at 1360 cm −1 , which is related to CO 2 contamination. On the lower frequency part, below 2000 cm −1 , the agreement is qualitatively good in showing both C═C and C–C modes reported in Table 3.…”

Section: Resultsmentioning

confidence: 81%

“…Plasma discharges were created in an acetylene (Air Liquide, with no further purification) atmosphere whose flow rates ( Q ) varied from 10 to 40 sccm, with a constant working pressure of 1.0 × 10 −2 mbar. [ 17 ]…”

Section: Modeling and Experimentsmentioning

confidence: 99%

Insight into acetylene plasma deposition using molecular dynamics simulations

Brault

Sciacqua

et al. 2021

Plasma Processes & Polymers

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Molecular dynamics simulations are carried out for studying growth and properties of polymers from pure acetylene plasma. Mixture of H, C2H and C2H2 is the initial composition for running the molecular dynamics simulations. Resulting films are characterized by characterizing bond order, [H]/[C] ratio and simulated infrared spectrum. The latter is qualitatively compared with three different experiments: IR peak identification and positions are recovered.

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“…The deposition of thin polymer films enables the modification of chemical and functional surface characteristics, as nanoscale structuring can be employed for the creation of distinct patterns with tailorable properties for wetting [ 1 ], anti-fouling [ 2 ], optical appearance [ 3 ], adhesion [ 4 ], environmental sensitivity [ 5 ], bacterial/cell interactions [ 6 ] and antimicrobial or bioresponsive properties [ 7 ]. The basics for plasma polymerization of polymer thin films are known [ 8 ], but proper control of morphologies and stability remains challenging.…”

Section: Introductionmentioning

confidence: 99%

Confined Crystallization of Thin Plasma-Polymerized Nanocomposite Films with Maleic Anhydride and Cellulose Nanocrystals under Hydrolysis

Samyn

2022

Molecules

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The creation of novel surface morphologies through thin-film patterning is important from a scientific and technological viewpoint in order to control specific surface properties. The pulsed-plasma polymerization of thin nanocomposite films, including maleic anhydride (MA) and cellulose nanocrystals (CNC), may result in different metastable film morphologies that are difficult to control. Alternatively, the transformation of deposited plasma films into crystalline structures introduces unique and more stable morphologies. In this study, the structural rearrangements of plasma-polymerized (MA+CNC) nanocomposite films after controlled hydrolysis in a humid atmosphere were studied, including effects of plasma conditions (low duty cycle, variable power) and monomer composition (ratio MA/CNC) on hydrolysis stability. The progressive growth of crystalline structures with fractal dendrites was observed in confined thin films of 30 to 50 nm. The structures particularly formed on hydrophilic substrates and were not observed before on the more hydrophobic substrates, as they exist as a result of water penetration and interactions at the film/substrate interface. Furthermore, the nucleating effect and local pinning of the crystallites to the substrate near CNC positions enhanced the film stability. The chemical structures after hydrolysis were further examined through XPS, indicating esterification between the MA carboxylic acid groups and CNC surface. The hydrolysis kinetics were quantified from the conversion of anhydride groups into carboxylic moieties by FTIR analysis, indicating enhanced hydrolytic stability of p(MA+CNC) nanocomposite films relative to the pure p(MA) films.

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Plasma polymer for enhancing adhesion bonds of a metal/elastomer assembly

Cited by 4 publications

References 49 publications

Plasma surface engineering for manmade soft materials: a review

Plasma surface engineering for manmade soft materials: a review

Insight into acetylene plasma deposition using molecular dynamics simulations

Confined Crystallization of Thin Plasma-Polymerized Nanocomposite Films with Maleic Anhydride and Cellulose Nanocrystals under Hydrolysis

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