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Open AccessArticle

Hybrid Self-Reinforced Composite Materials Based on Ultra-High Molecular Weight Polyethylene

1
Center of Composite Materials, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
2
Skolkovo Institute of Science and Technology, 143026 Moscow, Russia
*
Author to whom correspondence should be addressed.
Materials 2020, 13(7), 1739; https://doi.org/10.3390/ma13071739
Received: 2 March 2020 / Revised: 2 April 2020 / Accepted: 3 April 2020 / Published: 8 April 2020
(This article belongs to the Special Issue Advances in Polyethylene Based Composites)
The properties of hybrid self-reinforced composite (SRC) materials based on ultra-high molecular weight polyethylene (UHMWPE) were studied. The hybrid materials consist of two parts: an isotropic UHMWPE layer and unidirectional SRC based on UHMWPE fibers. Hot compaction as an approach to obtaining composites allowed melting only the surface of each UHMWPE fiber. Thus, after cooling, the molten UHMWPE formed an SRC matrix and bound an isotropic UHMWPE layer and the SRC. The single-lap shear test, flexural test, and differential scanning calorimetry (DSC) analysis were carried out to determine the influence of hot compaction parameters on the properties of the SRC and the adhesion between the layers. The shear strength increased with increasing hot compaction temperature while the preserved fibers’ volume decreased, which was proved by the DSC analysis and a reduction in the flexural modulus of the SRC. The increase in hot compaction pressure resulted in a decrease in shear strength caused by lower remelting of the fibers’ surface. It was shown that the hot compaction approach allows combining UHMWPE products with different molecular, supramolecular, and structural features. Moreover, the adhesion and mechanical properties of the composites can be varied by the parameters of hot compaction. View Full-Text
Keywords: UHMWPE fibers; self-reinforced composites; single polymer composites; hybrid materials UHMWPE fibers; self-reinforced composites; single polymer composites; hybrid materials
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MDPI and ACS Style

Zherebtsov, D.; Chukov, D.; Statnik, E.; Torokhov, V. Hybrid Self-Reinforced Composite Materials Based on Ultra-High Molecular Weight Polyethylene. Materials 2020, 13, 1739.

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