A review of plasma treatment and the clinical application of polyethylene fibres to reinforcement of acrylic resins

Ladizesky, N. H.; Ward, I. M.

doi:10.1007/bf00151029

Cited by 24 publications

(11 citation statements)

References 47 publications

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“…As nonaqueous surface modification processes, plasma treatments have been widely studied in the laboratory for improving wettability or hydrophilicity 1–5. However, most of the studies use vacuum systems that require an expensive and complicated vacuum environment 6, 7. In addition, in a vacuum system, the sample has to be completely dried before the degree of vacuum can be reached, which can be difficult and energy consuming for many hygroscopic materials 8…”

Section: Introductionmentioning

confidence: 99%

Influence of moisture regain of aramid fibers on effects of atmospheric pressure plasma treatment on improving adhesion with epoxy

Liu

Jiang

Zhu

et al. 2006

J of Applied Polymer Sci

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ABSTRACT:One difference between a low-pressure plasma treatment and an atmospheric pressure plasma treatment is that in the atmosphere, the substrate material may contain significant quantities of moisture, which could potentially influence the effects of the plasma treatment. To investigate how the existence of moisture affects atmospheric pressure plasma treatment, aramid fibers (Twaron 1000) with three different moisture regains (0.5, 4.5, and 5.5%) were treated by an atmospheric pressure plasma jet for 3 s at a gas flow rate of 8 L/min, a treatment head temperature of 100°C, and a power of 10 W. The scanning electron microscopy analysis showed no observable surface morphology change for the plasma treated samples. X-ray photoelectron spectroscopy analysis showed the oxygen contents of the 0.5 and 4.5% moisture regain groups increased from that of the control, although the opposite was true for the 5.5% moisture regain group. The advancing contact angles of the treated fibers decreased about 8°-16°w hereas their receding contact angles decreased about 17°-27°. The interfacial shear strengths of the treated fibers as measured using microbond pull-out tests were more than doubled when the moisture regain was 4.5 or 5.5%, whereas it increased by 58% when the moisture regain was 0.5%. In addition, no significant difference in single fiber tensile strength was observed among the plasma treated samples and the control sample. Therefore, we concluded that moisture regain promoted the plasma treatment effect in the improvement of the adhesion property of aramid fibers to epoxy.

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Section: Introductionmentioning

confidence: 99%

Influence of moisture regain of aramid fibers on effects of atmospheric pressure plasma treatment on improving adhesion with epoxy

Liu

Jiang

Zhu

et al. 2006

J of Applied Polymer Sci

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“…Various natural polymers are used as biomaterials, such as gelatin, chitosan, collagen, hyaluronic acid, elastin, silk, and wheat protein [3,48,68,105]. Collagen nanofibers have been manifested to show compatibility with a number of cell types, including myoblasts and chondrocytes [3].…”

Section: Natural Polymersmentioning

confidence: 99%

“…For controlled drug delivery applications, the electrospinning process enables a wide variety of hydrophobic therapeutic agents to be directly incorporated within the bulk phase of nanofibers for controlled release. For example, a biodegradable polymer, PLGA solution containing hydrophobic anti-cancer drugs such as paclitaxel was directly electrospun to formulate the drug releasing nanofibrous mesh [68]. Alternatively, hydrophilic and therapeutic molecules such as proteins and nucleic acids were covalently and physically immobilized onto the modified surface of nanofibrous matrix for modulating cellular functions.…”

Section: Biocompatibility Of Nanofibersmentioning

confidence: 99%

Nanofibers‐based Biomedical Devices

Mondal

Tiwari

2012

Intelligent Nanomaterials

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Polymer fibers have been employed in many biomedical applications -for example, sutures, tissue engineering matrices, gauzes and bandages, and drug delivery devices. These are made of either non-biodegradable polymers or biodegradable polymers, such as poly (lactide-co-glycolide). Nanofiber-based materials have several advantages compared to conventional fibers. In particular, they represent a very large surface area to volume ratio, high porosity, and variable pore-size distribution. Additionally, the surface functionality is possible to influence, and various morphologies are achievable, including nanotubes. Recently, electrospun nanofiber matrices have garnered a lot of attention and shown great potential in biomedical applications. The three-dimensional synthetic biodegradable scaffolds are designed utilizing nanofibers to serve as an excellent framework for cell adhesion, proliferation, and differentiation. Physiochemical properties of nanofiber scaffolds can be governed by manipulating electrospinning parameters to meet the demands of a specific applications. Various attempts have been made to modify nanofiber surfaces with several bioactive molecules to allow cells with the requisite chemical cues and a more in vivo -like environment. Nanofibers have been used as scaffolds for skin tissue engineering, musculoskeletal tissue engineering (bone, cartilage, ligament, and skeletal muscle), vascular tissue engineering, neural tissue engineering, and as carriers for the controlled

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“…Several methods for the surface modification of HSPE fibers, including plasma deposition,7, 8 corona discharge,9 and surface photograft polymerization,10–12 have been proposed to improve the adhesive performance of the interface between the fibers and a matrix. However, the improvements achieved from these methods may not be sufficient.…”

Section: Introductionmentioning

confidence: 99%

Grafting of multifunctional groups onto the surface of high‐strength polyethylene fibers and the interface of their composites

Chen

2005

J of Applied Polymer Sci

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High-strength polyethylene (HSPE) fibers were oxidated via chemical reactions in an acidic medium, and the carboxyl group was transferred into the acyl chloride and then reacted with pentaerythritol or diethylene triamine to graft the multifunctional group compounds onto the surface of the HSPE fibers. Subtractive Fourier transform infrared spectroscopy and the methylene blue absorbing method were used to study the functional groups on the surface of the modified fibers and their content. The results show that the polar functional groups, including OCOOH, OOH, and ONH 2 , were introduced onto the surface of the HSPE fibers, and the polar groups improved the wettability. The interface shear stress (IFSS) of the composites that were made from modified fibers and epoxy was measured by means of the microdebond method. The results show that the IFSS was greatly increased by the grafting of pentaerythritol or diethylene triamine onto the HSPE fiber surface.

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A review of plasma treatment and the clinical application of polyethylene fibres to reinforcement of acrylic resins

Abstract: The available literature on the plasma treatment of polyethylene fibres and their clinical applications has been critically reviewed. It is suggested that some misconceptions could inhibit the full exploitation of these materials.

Cited by 24 publications

References 47 publications

Influence of moisture regain of aramid fibers on effects of atmospheric pressure plasma treatment on improving adhesion with epoxy

Influence of moisture regain of aramid fibers on effects of atmospheric pressure plasma treatment on improving adhesion with epoxy

Nanofibers‐based Biomedical Devices

Grafting of multifunctional groups onto the surface of high‐strength polyethylene fibers and the interface of their composites

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