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Molecules 2017, 22(12), 2149; doi:10.3390/molecules22122149

Surfactant Effects on Structure and Mechanical Properties of Ultrahigh-Molecular-Weight Polyethylene/Layered Silicate Composites

1
Department of Chemistry, North-Eastern Federal University, Yakutsk 677000, Russia
2
School of Mechanical & Automotive Engineering, Halla University, Wonju 220-712, Korea
3
Department of Chemistry, Myongji University, Yongin 449-728, Korea
*
Authors to whom correspondence should be addressed.
Received: 26 October 2017 / Revised: 29 November 2017 / Accepted: 1 December 2017 / Published: 5 December 2017
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Abstract

In this study, the reinforcement of ultrahigh-molecular-weight polyethylene (UHMWPE) with biotite was investigated. The biotite filler was mechanically activated with different dry surfactants to improve its compatibility with UHMWPE and decrease agglomeration among biotite particles. Alkyldimethylbenzylammonium chloride (ADBAC) and cetyltrimethylammonium bromide (CTAB) were selected as cationic surfactants. The tensile strength of composites containing 1 wt % of CTAB-treated biotite was increased by 30% relative to those with untreated biotite, but was unchanged with ADBAC treatment of the same biotite content. The stereochemistry of the surfactant may be critical to the composite structure and mechanical properties of the material. The stereochemistry of CTAB was preferable to that of ADBAC in enhancing mechanical properties because the stereochemistry of ADBAC impedes favorable interactions with the biotite surface during mechanical activation. View Full-Text
Keywords: ultrahigh-molecular-weight polyethylene; alkyldimethylbenzylammonium chloride; low temperature; high strength ultrahigh-molecular-weight polyethylene; alkyldimethylbenzylammonium chloride; low temperature; high strength
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Nikiforov, L.A.; Okhlopkova, T.A.; Kapitonova, I.V.; Sleptsova, S.A.; Okhlopkova, A.A.; Shim, E.L.; Cho, J.-H. Surfactant Effects on Structure and Mechanical Properties of Ultrahigh-Molecular-Weight Polyethylene/Layered Silicate Composites. Molecules 2017, 22, 2149.

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