Improving tribological properties of phenolic resin/carbon fiber composites using m‐Si₃N₄@PANI core–shell particles

Abstract

Phenolic resin/carbon fiber (PF/CF) composites have good tribological properties; however, their extensive applications are limited because of the poor thermal conductivity of the phenolic resins. In this work, core‑shell particles of polyaniline‐coated (3‐aminopropyl) triethoxysilane‐modified β‐Si3N4 (m‐SiN@PANI) were used to enhance the tribological, electrical, and thermal conductivity properties of a PF/CF composite. A core‑shell particle, consisting of m‐SiN@PANI, was characterized by Fourier Transform Infrared Spectrometry, X‐Ray Diffraction, Scanning Electron Microscope, and Transmission Electron Microscope. The friction, thermal, and electrical properties of the composites were characterized by multifunctional vertical friction testing, wear measurement testing, thermogravimetric analysis, thermal constant analysis, and electrical conductivity testing. Remarkably, the test results showed that compared with the wear surface of the PF/CF composite, that of the phenolic resin/(2.0 wt % m‐SiN@PANI)/carbon fiber composite exhibited a smoother morphology. The results indicated that the addition of m‐SiN@PANI effectively improved the thermal conductivity, electrical conductivity, friction coefficient, and wear rate of the composites, which were 3.164 Wm−1 K−1, 5.33 × 10−6 S/m, 0.1681 and 1.13 × 10−8 mm3/Nm, respectively. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47785.

Synthesis of Core–Shell Micro/Nanoparticles and Their Tribological Application: A Review

“…By adding h-BN@Ni powders, the microstructure of the ceramic composite was more homogeneous than that of the composite containing uncoated h-BN powders. In order to improve the poor thermal conductivity of the phenolic resin/carbon fiber (PF/CF) composites, m-Si 3 N 4 @PANI core–shell particles were synthesized [ 65 ]. The results indicated that the addition of m-Si 3 N 4 @PANI improved the thermal conductivity, electrical conductivity, COF, and wear rate of PF/CF composites effectively (thermal conductivity of 3.164 Wm −1 ·K −1 , electrical conductivity of 5.33 × 10 −6 S/m, COF of 0.1681 (reduced by 48.48%) and wear rate of 1.13 × 10 −8 mm 3 /Nm (reduced by 68.08%)).…”

Improved tribological and noise suppression performance of graphene/nitrile butadiene rubber composites via the exfoliation effect of ionic liquid on graphene

“…[17,18] It was considered that the strong fiberrubber interface could enhance the overall fatigue strength, and thus improve the deformation stability. [19,20] For instance, Zhang [21] incorporated basalt fibers (BFs) into the polyetheretherketone (PEEK) matrix and successfully improved tribological properties and wear resistance of as-prepared composites with addition of 2.5-7.5 phr BFs. Liang [22] prepared a high density polyethylene (HDPE)/glass fiber (GF) composites and demonstrated a reduction of 51.56% in friction coefficient under 0.4 MPa and 500 rpm as well as good wear resistance.…”