Effect of imaging techniques on the observed surface morphology of oxygen plasma etched polyethylene fibres

Intrater, R.; Hoffman, A.; Lempert, G.; Gouzman, I.; Grossman, Eitan

doi:10.1016/j.polymdegradstab.2006.02.012

Cited by 11 publications

(2 citation statements)

References 9 publications

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“…Scanning probe microscopy (SPM), particularly in the form of atomic force microscopy (AFM) uses a physical probe scanning across the sample using piezoelectric ceramics and the position of the probe and the feedback signal are electronically recorded to produce a three dimensional map of the surface or other information depending on the specialty probe used [7]. The scanning probe microscope used in this work was a CSPM4000 atomic force microscopy made by Benyuan Co, LTD. Scanning was carried out in lateral force mode atomic force microscopy and all samples were scanned at room temperature in atmosphere.…”

Section: Surface Morphologymentioning

confidence: 99%

Comparative studies of functional nanostructures sputtered on polypropylene nonwovens

Wei¹,

Yu²,

Hou³

et al. 2007

E-Polymers

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Functional nanocomposite nonwoven materials were prepared by surface coating with copper and silver using magnetron sputter coating. The composite nonwoven materials with metallic nanostructures were analyzed and compared by means of atomic force microscopy, energy dispersive X-ray analysis and electrical and optical tests. The observations by atomic force microscopy revealed the formation of functional nanostructures on the fibre surfaces. It was found that copper had more compact structures on the fiber surface than silver under the same sputtering conditions. The transmittance analysis showed that the nonwoven substrates deposited with nanostructural copper showed better ultraviolet and visible light absorption than those coated with silver. The functional nonwoven materials coated with silver had lower electrical resistance than those coated with copper.

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Section: Surface Morphologymentioning

confidence: 99%

Comparative studies of functional nanostructures sputtered on polypropylene nonwovens

Wei¹,

Yu²,

Hou³

et al. 2007

E-Polymers

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“…Ultra-high molecular weight polyethylene (UHMWPE) fiber has excellent properties such as high tensile strength, high specific modulus, low density, high work of fracture, and good workability, which have led to its wide use in manufacturing marine vessel ropes, military protective materials, and aerospace materials [1,2]. However, because of its simple planar zigzag structure, lacking of hydrogen bonding between UHMWPE fiber macromolecules, and relatively small intermolecular forces, UHMWPE macromolecules are prone to slipping, which results in intermolecular creep [3–5]. This defect greatly limits the applications of UHMWPE fiber in many areas.…”

Section: Introductionmentioning

confidence: 99%

Effects of electron beam irradiation on structure and properties of ultra-high molecular weight polyethylene fiber

Dai

Shi

2017

Journal of Industrial Textiles

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This study introduced trimethylolpropane trimethacrylate into ultra-high molecular weight polyethylene fibers through supercritical CO2 pretreatment before the fibers were irradiated under an electron beam. Significant differences, emerging in the ultra-high molecular weight polyethylene fibers’ gel content, mechanical properties, and creep property according to their different irradiation doses, were studied through one-way analysis of variance. Regression equations were established between the irradiation dose and the gel content, breaking strength, elongation at break, and creep rate by regression analysis. A reasonable irradiation dosage range was determined after a verification experiment and the impact trends were analyzed; additionally, the sensitized irradiation crosslinking mechanism of ultra-high molecular weight polyethylene fibers was preliminarily examined. Then the surface morphology, chemical structures, thermal properties, and crystal properties of treated ultra-high molecular weight polyethylene fibers were measured. The results showed that as the irradiation dose increased, the gel content first rose and then declined; the breaking strength decreased continuously; the elongation at break increased at first and then decreased; and the creep rate originally fell and then rose before finally declining slowly. Electron beam irradiation had a significant etching effect on the fibers’ surface, and both the melting point and crystallinity decreased slightly.

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Enhancement of Wetting and Mechanical Properties of UHMWPE‐Based Composites through Alumina Atomic Layer Deposition

Shimel

Gouzman²,

Grossman³

et al. 2018

Adv Materials Inter

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Ultrahigh molecular weight polyethylene (UHMWPE) fibers suffer from poor adhesion to polar matrices in composites due to their chemically inert surface, thus limiting the use of UHMWPE‐based fabrics and composites. Atomic layer deposition (ALD) is a useful method of constructing a thin oxide layer, with a variety of oxides available, enabling a nondestructive method for surface modification. Here, UHMWPE fibers and fabrics are coated by ALD with a thin alumina layer, using two precursors—trimethylaluminum (TMA) and water—to a final coating thickness of 39 nm. The effect of the oxide coating layer is determined by various mechanical and physical tests. The contact angle is reduced by 44–49%, indicating a substantial increase in wettability. Significant improvements are observed in the flexural modulus, flexural strength, interlaminar shear strength, resilience, and toughness. Frequency dependence tests show an improvement in storage modulus at all tested frequencies, insinuating higher impact toughness at high strain rates. Failure analysis reveals a change in the failure mode, from pinholes formation and adhesion failure to cohesion failure and mixed failure modes. Thus, the use of ALD alumina‐coated UHMWPE fibers in composites shows high scientific and technological potential.

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Effect of imaging techniques on the observed surface morphology of oxygen plasma etched polyethylene fibres

Cited by 11 publications

References 9 publications

Comparative studies of functional nanostructures sputtered on polypropylene nonwovens

Comparative studies of functional nanostructures sputtered on polypropylene nonwovens

Effects of electron beam irradiation on structure and properties of ultra-high molecular weight polyethylene fiber

Enhancement of Wetting and Mechanical Properties of UHMWPE‐Based Composites through Alumina Atomic Layer Deposition

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