Atmospheric Pressure Plasma Activation of Polymers and Composites for Adhesive Bonding

Williams, Thomas S.; Yu, Hang; Hicks, Robert F.

doi:10.7569/raa.2013.097302

Cited by 42 publications

(16 citation statements)

References 80 publications

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“…Adhesion correlates with the fraction of the polymer surface sites that are oxidized and converted into active functional groups, as determined by X-ray photoelectron spectroscopy and infrared spectroscopy (Gonzalez and Hicks 2010;Williams et al 2013).…”

Section: Xpsmentioning

confidence: 99%

Effect of Barrier Plasma Pre-Treatment on Polyester Films and their Adhesive Properties on Oak Wood

Novák¹,

Sedliacik²,

Gajtanska³

et al. 2016

BioResources

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A barrier plasma, created at atmospheric pressure, was used to improve the surface and adhesive properties of polyester (PES) film with respect to wood using polyurethane adhesives. The modification of PES film surfaces using barrier discharge plasma is attractive for various applications. Plasma pre-treatment initiates and participates in grafting, polymerization, or cross-linking reactions on the PES surface. This method of surface modification is clean, dry, ecological, and very efficient. The enhancement of the wettability of the polyester film was necessary for promoting higher adhesion to wood with water-based adhesives. The treatment of polyester films by barrier plasma led to a considerable increase in the surface free energy of the film and subsequently an increase in the peel strength of the adhesive joint of PES film-oak wood with polyurethane adhesive.

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Section: Xpsmentioning

confidence: 99%

Effect of Barrier Plasma Pre-Treatment on Polyester Films and their Adhesive Properties on Oak Wood

Novák¹,

Sedliacik²,

Gajtanska³

et al. 2016

BioResources

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“…Other tried methods involve modifying the chemistry of the surface, in order to facilitate enhanced chemical bonds. The most common ones are plasma activation [ 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 ] and chemical etching [ 36 , 37 , 38 , 39 ]. Plasma activation entails bombarding substrates’ surfaces with high-energy plasma, thereby removing impurities and chemically changing the molecular construction of the surface.…”

Section: Introductionmentioning

confidence: 99%

Use of Nanoparticles for Enhancing the Interlaminar Properties of Fiber-Reinforced Composites and Adhesively Bonded Joints—A Review

Cicco

Asaee

Taheri‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬‬

2017

Nanomaterials

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This review paper aims at reporting some of the notable works carried out concerning the use of nanoparticles (NPs) as a means of improving the resistance of fiber-reinforced polymer composite materials (FRPs) and adhesively bonded joints (ABJs) to delamination initiation and propagation. Applications of various nanoparticles, such as carbon-based, ceramic-based and mineral-based are discussed. The main properties that have been considered for improving the delamination and fatigue resistance of FRPs are the interlaminar shear strength, fracture toughness, and fracture energy. On the other hand, cohesive and interfacial strengths have been the focused parameters in the works that considered enhancement of ABJs. The reported results indicate that inclusion of NPs in polymeric matrices leads to improvement of various material properties, even though some discrepancies in the results have been noted. Notwithstanding, additional research is required to address some of the issues that have not yet been tackled, some of which will be identified throughout this review article.

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“…Ultraviolet photons generated by the plasma are acting to the weak bonds from polymer leading to their breaking, resulting new reactive places at the surface . For this reason, plasma based on reactive gas species, like oxygen, are widely used in surface activation of macromolecular compounds . In this context, it can be stated that among the factors that determine the adhesion at polymer/metal interface, the most important are the surface morphology, pretreatment technique, and the deposition method of the inorganic layer.…”

Section: Introductionmentioning

confidence: 99%

Effect of oxygen plasma treatment and gold sputtering on morphological and local mechanical properties of copolyimide/gold micropatterned structures

Stoica

Aflori²,

Ioanid³

et al. 2017

Surface & Interface Analysis

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Atomic force microscopy (AFM) was used to analyze rectangular 3-dimensional patterned microstructures with different functionalities induced on copolyimide containing alicyclic sequences film surfaces by means of oxygen plasma treatment. The plasma power was ranged to be big enough to accelerate the plasma species towards the copolyimide surface, and the exposure time was not very small to generate a roughness that still can be monitored by AFM. To create the rectangular pattern, transmission electron microscopy grid masks were placed on the samples before treatment. Plasma-induced micropatterning with alternating hydrophilic and hydrophobic surface chemistries was evaluated by measuring the adhesion forces between the gold-covered AFM tip and the copolyimide surfaces. To fabricate 3-dimensional metallic microstructures arranged in well-defined areas, thin metal layers were sputtered on these pretreated copolyimide films. The AFM morphological aspects of the obtained metallic structures were correlated with the surface modifications induced by plasma treatment conditions. Functional indexes and functional volume parameters were also calculate to characterize the functional behavior of the surface, such as wear, lubrication, and contact. The AFM data were compared with those obtained using the small-angle X-ray scattering measurements.

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Atmospheric Pressure Plasma Activation of Polymers and Composites for Adhesive Bonding

Cited by 42 publications

References 80 publications

Effect of Barrier Plasma Pre-Treatment on Polyester Films and their Adhesive Properties on Oak Wood

Effect of Barrier Plasma Pre-Treatment on Polyester Films and their Adhesive Properties on Oak Wood

Use of Nanoparticles for Enhancing the Interlaminar Properties of Fiber-Reinforced Composites and Adhesively Bonded Joints—A Review

Effect of oxygen plasma treatment and gold sputtering on morphological and local mechanical properties of copolyimide/gold micropatterned structures

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