Wettability and Adhesion Characteristics of Plasma-Treated Carbon Fibers

Tsutsumi, Kazuo; Ban, Kazutaka; Shibata, K.; Okazaki, S.; Kogoma, Masuhiro

doi:10.1080/00218469608013642

Cited by 19 publications

(5 citation statements)

References 20 publications

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“…Plasmas operated at atmospheric pressure have been successfully used to improve the bondability4, 6, 10‐14 and wettablity12, 15–17 of polymers by introducing polar groups or creation of the surface roughness18–22 without affecting the bulk properties. Typical atmospheric pressure plasma systems are corona discharges and dielectric barrier discharges.…”

Section: Introductionmentioning

confidence: 99%

Surface modification of ultra high modulus polyethylene fibers by an atmospheric pressure plasma jet

Wang

Qiu

2007

J of Applied Polymer Sci

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To improve their adhesion properties, ultra high modulus polyethylene (UHMPE) fibers were treated by an atmospheric pressure helium plasma jet (APPJ), which was operated at radio frequency (13.56 MHz). The surface properties of the fibers were investigated by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and contact angle measurement. The surface dyeability improvement after plasma treatments was investigated using laser scanning confocal microscopy (LSCM). The adhesion strengths of the fibers with epoxy were evaluated by microbond tests. In addition, the influence of operational parameters of the plasma treatment including power input and treatment temperature was studied. XPS analysis showed a significant increase in the surface oxygen content. LSCM results showed that the plasma treatments greatly increased fluorescence dye concentrations on the surface and higher diffusion rate to the fiber center. The tensile strength of UHMPE fiber either remained unchanged or decreased by 10-13.6% after plasma treatment. The contact angle exhibited a characteristic increase in wettability, due to the polar groups introduced by plasma treatment. The microbond test showed that the interfacial shear strengths (IFSS) increase significantly (57-139%) after plasma treatment for all groups and the optimum activation is obtained at 1008C and 5 W power input. SEM analysis showed roughened surfaces after the plasma treatments.

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Section: Introductionmentioning

confidence: 99%

Surface modification of ultra high modulus polyethylene fibers by an atmospheric pressure plasma jet

Wang

Qiu

2007

J of Applied Polymer Sci

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“…The surface energy determines the adsorption capacity, adsorption stability, and adsorption structure of the fiber surface to the droplets. 24 There is no doubt that the curvature difference is the main reason for forming the mechanical lock. However, the change in surface energy also further strengthens the TCL structure.…”

Section: Resultsmentioning

confidence: 99%

The wettability and micro-equilibrium of different essence liquids to alkali-treated kapok fiber

Cao

Xie

et al. 2021

Textile Research Journal

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Kapok fiber is a natural hollow fiber that has superior biocompatibility and biodegradability and is naturally antibacterial. Because of its unique properties, it has great potential in the application of postoperative repair dressings. The wettability and micro-equilibrium of kapok fibers play a critical role in dressing applications. In this study, the critical adhesion volume and adhesion energy of essence liquid to alkali-treated kapok fiber (AKF) were quantitatively calculated to explore the wettability and micro-equilibrium through the equilibrium wetting theory. Meanwhile, the three-phase contact line (TCL) structure was described. The results showed that the critical adhesion volumes of the three types of essence liquid for AKF were 3.45, 3.81, and 4.12 μL, respectively. Moreover, the critical volumes and low error rates derived from the equilibrium wetting theory were 3.41 μL and 1.16%, 3.99 μL and 4.51%, and 4.60 μL and 10.43%, respectively. Therefore, the critical volume of adhesion could be well calculated by the theoretical model. The average adhesive energies of essence liquid to the AKF were 0.38, 0.45, and 0.56 J, respectively, caused by the difference in liquids properties. The TCL showed a mechanical lock and bonding points at both ends because of the curvature difference and higher surface energy. These results are proposed to inspire the design of a liquid carrier of kapok fibers based on the fiber network structure.

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“…If the acid-base properties of the matrix resin are also determined, it should be possible to choose a fiber to matrix pair to maximize adhesion. The adhesion strength of the interface depends on the thermodynamic work of adhesion that is closely related to the surface energy of the fiber and matrix [85]. Surface energy of fibers has been determined quantitatively by measurement of the contact angles by using Wilhelmy plate technique [86][87][88][89][90].…”

Section: Relationship Between Wettability and Interfacementioning

confidence: 99%

CNT-Based Inherent Sensing and Interfacial Properties of Glass Fiber-Reinforced Polymer Composites

Wang

Kwon

et al. 2015

Handbook of Polymer Nanocomposites. Processing, Performance and Application

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Wettability and Adhesion Characteristics of Plasma-Treated Carbon Fibers

Cited by 19 publications

References 20 publications

Surface modification of ultra high modulus polyethylene fibers by an atmospheric pressure plasma jet

Surface modification of ultra high modulus polyethylene fibers by an atmospheric pressure plasma jet

The wettability and micro-equilibrium of different essence liquids to alkali-treated kapok fiber

CNT-Based Inherent Sensing and Interfacial Properties of Glass Fiber-Reinforced Polymer Composites

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