Construction of surface-functionalized hexagonal boron nitride flakes for unsaturated polyesters resin composites with improved tribological properties under seawater condition

Wu, Wei; Tang, Zijian; Zhao, Hui; Li, Xiaolei; Li, Robert K.Y.

doi:10.1016/j.coco.2023.101738

Composites Communications

2023

DOI: 10.1016/j.coco.2023.101738

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Construction of surface-functionalized hexagonal boron nitride flakes for unsaturated polyesters resin composites with improved tribological properties under seawater condition

Wei Wu,

Zijian Tang,

Hui Zhao

et al.

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Cited by 5 publications

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Properties and Mechanism of Friction‐Reducing Silicone Rubber Modified with Hyperbranched Polysiloxane

Ai,

Wang

2024

Macro Chemistry & Physics

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During the utilization of silicone rubber, excessive friction can cause damage to the contact surface and the material itself. Therefore, friction‐reducing modification of silicone rubber has attracted much attention. In this paper, hyperbranched polysiloxanes with different structures is synthesized for friction‐reducing modification of silicone rubber. Infrared spectroscopy, nuclear magnetic resonance spectroscopy and amine titration tests reveal that hyperbranched polysiloxanes are successfully synthesized by the hydrolytic condensation of 3‐aminopropyltriethoxysilane and their Michael addition with four acrylates with different alkyl chains. The friction coefficients and mechanical properties of silicone rubber are evaluated. Hyperbranched polysiloxanes significantly reduces friction and maintained excellent mechanical properties of silicone rubber. Silicone rubber with butyl‐ester‐secondary‐amino hyperbranched polysiloxane displays the best overall performance, with static and dynamic friction coefficients decreasing by 33.99% and 43.16% compared with that of pure silicone rubber, respectively, and a tensile strength of 10.80 MPa. The friction‐reducing mechanism of hyperbranched polysiloxanes on silicone rubber is investigated by contact angle test and dynamic mechanical analysis. Hyperbranched polysiloxanes migrates to the surface due to the incompatibility of alkyl chains with silicone rubber matrix. Consequently, the shielding effect produced by hyperbranched polysiloxanes on the surface depresses the adsorption activity of silicone rubber surface thereby reducing friction.This article is protected by copyright. All rights reserved

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Properties and Mechanism of Friction‐Reducing Silicone Rubber Modified with Hyperbranched Polysiloxane

Ai,

Wang

2024

Macro Chemistry & Physics

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Mussel-inspired polydopamine functionalized PBO fibers as an efficient additive for UHMWPE composites with improved tribological performance

Li,

Zhang,

Tang

et al. 2025

Applied Surface Science

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Highly thermally conductive and flexible nanocomposites prepared by integrating 1D/2D polyethyleneimine-modified boron nitride

Niu,

Zhang,

Wang

et al. 2024

Composites Communications

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Construction of surface-functionalized hexagonal boron nitride flakes for unsaturated polyesters resin composites with improved tribological properties under seawater condition

Cited by 5 publications

References 14 publications

Properties and Mechanism of Friction‐Reducing Silicone Rubber Modified with Hyperbranched Polysiloxane

Properties and Mechanism of Friction‐Reducing Silicone Rubber Modified with Hyperbranched Polysiloxane

Mussel-inspired polydopamine functionalized PBO fibers as an efficient additive for UHMWPE composites with improved tribological performance

Highly thermally conductive and flexible nanocomposites prepared by integrating 1D/2D polyethyleneimine-modified boron nitride

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