Rapid surface activation of carbon fibre reinforced PEEK and PPS composites by high-power UV-irradiation for the adhesive joining of dissimilar materials

Quan, Dong; Deegan, Brian; Byrne, L. F.; Scarselli, Gianfranco; Ivanković, Alojz

doi:10.1016/j.compositesa.2020.105976

Cited by 31 publications

(22 citation statements)

References 33 publications

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“…This alteration of the surface chemistry following the UV treatments can be considered responsible for the improved adhesion properties of the PEEK and PPS composite surfaces. This same result can be found in the technical literature in [28,29].…”

Section: Surface Characterizationsupporting

confidence: 87%

“…The substrates were exposed to UV radiation for 10 seconds and, immediately after, were placed in plastic bags paying extreme attention in not to contaminate them as presented and discussed in [27]. It must be remarked that UV treatment is long lasting (or permanent): previous studies found out that the effect of the surface can remain unaltered for up to three months [28,29]. After each treatment, the surfaces of the samples were characterized by measuring the free surface energy and the water contact angle.…”

Section: Surface Treatmentsmentioning

confidence: 99%

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Adhesion Improvement of Thermoplastics-Based Composites by Atmospheric Plasma and UV Treatments

et al. 2021

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The present work is concerned with adhesive bonding of thermoplastic composites used in general aerospace applications, including polyphenylene sulfide (PPS), polyetherimide (PEI) and polyetheretherketone (PEEK) carbon fibre composites. Three different surface treatments have been applied to the PEEK, PPS and PEI-based composites in order to enhance the adhesion: atmospheric plasma, ultraviolet radiation (UV) and isopropanol wiping as a control. Water contact angles and free surface energies were measured following the standard experimental procedure based on the employment of three different liquid droplets. Infrared spectroscopy and X-ray photoelectron spectroscopy (XPS) were subsequently performed to characterize the surface chemistry of the samples after treatment. The single lap joints were manufactured and bonded by an Aerospace grade epoxy-based film adhesive originally developed for use on metals but with the ability to bond treated thermoplastics to good strength (supplied by Henkel Ireland). Quasi-static (QS) tests were conducted. The lap shear strength was evaluated, and the failure mechanisms of the different joints were examined for the range of surface treatments considered. It was found that the performances of the PEEK and PPS joints were considerably improved by the plasma and UV treatments resulting in cohesive and delamination failures, while PEI was unaffected by the plasma and UV treatments and performed very well throughout.

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Section: Surface Characterizationsupporting

confidence: 87%

Section: Surface Treatmentsmentioning

confidence: 99%

Adhesion Improvement of Thermoplastics-Based Composites by Atmospheric Plasma and UV Treatments

et al. 2021

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“…As a result, it is a widely used polymer material. However, its dielectric loss is less than 0.001 at 1 kHz at 100 • C. As a result, modifications to the molecular chain are required to make it stable at high temperatures [67][68][69].…”

Section: Polar Polymer Filling and Blendingmentioning

confidence: 99%

Energy Storage Application of All-Organic Polymer Dielectrics: A Review

et al. 2022

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With the wide application of energy storage equipment in modern electronic and electrical systems, developing polymer-based dielectric capacitors with high-power density and rapid charge and discharge capabilities has become important. However, there are significant challenges in synergistic optimization of conventional polymer-based composites, specifically in terms of their breakdown and dielectric properties. As the basis of dielectrics, all-organic polymers have become a research hotspot in recent years, showing broad development prospects in the fields of dielectric and energy storage. This paper reviews the research progress of all-organic polymer dielectrics from the perspective of material preparation methods, with emphasis on strategies that enhance both dielectric and energy storage performance. By dividing all-organic polymer dielectrics into linear polymer dielectrics and nonlinear polymer dielectrics, the paper describes the effects of three structures (blending, filling, and multilayer) on the dielectric and energy storage properties of all-organic polymer dielectrics. Based on the above research progress, the energy storage applications of all-organic dielectrics are summarized and their prospects discussed.

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“…With the development of material science and fabrication technology, the investigation of dissimilar composite materials (Jian et al, 2017; Quan et al, 2020; Sun, Li, Song, Zhang, & Wang, 2020) promoted the practical application in fields of material and mechanical engineering. As a typical kind of ambush predatory marine crustaceans, mantis shrimps owned efficient raptorial appendages (Schram, 2007), which treated as bionic models for the design and preparation of bionic materials with properties of anti‐impact, high strength and so on (Bruet, Song, Boyce, & Ortiz, 2008; Patek, Korff, & Caldwell, 2004; Ribbans, Li, & Tan, 2016; Sachs, Fabritius, & Raabe, 2008).…”

Section: Introductionmentioning

confidence: 99%

Investigation of microstructure and dissimilar materials connection patterns of mantis shrimp saddle

Zhao

Chang

Lin

et al. 2021

Microscopy Res & Technique

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The microstructure and dissimilar materials connection patterns of mantis shrimp saddle were investigated. The outer layer with layered helical structure and inner layer with slablike laminae structure constructed the microstructure characteristics of saddle. The merus and membrane were characterized by layered structure. The lamina of saddle connected the corresponding lamina in merus and membrane, building the continuous and smooth coupling connection patterns. The entitative “hard‐hard” and “hard‐soft” transitions of dissimilar materials at micro level enhanced the steady transmit of driven force. The saddle exhibited high mechanical strength. With the increase of in‐situ tensile displacement, the number of fractured fragments on saddle outer layer surface increased, which subjected to tensile load and defused the damage in the form of mineralized surface fragmentation. In the inner part of saddle, the fracture of mineralized laminae and crack deflection mechanisms bore the tensile load influence. The combination of microstructure with high mechanical strength and continues micro lamina connection endowed the concise dissimilar materials connection and efficient elastic energy storage property of saddle, which can be treated as the bionic models for design and preparation of fiber reinforced resin composite, hyperelastic material and so on.

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Rapid surface activation of carbon fibre reinforced PEEK and PPS composites by high-power UV-irradiation for the adhesive joining of dissimilar materials

Cited by 31 publications

References 33 publications

Adhesion Improvement of Thermoplastics-Based Composites by Atmospheric Plasma and UV Treatments

Adhesion Improvement of Thermoplastics-Based Composites by Atmospheric Plasma and UV Treatments

Energy Storage Application of All-Organic Polymer Dielectrics: A Review

Investigation of microstructure and dissimilar materials connection patterns of mantis shrimp saddle

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