Structural integrity of polymer matrix composite panels in fire

Gu, Ping

doi:10.1533/9780857095329.1.79

Cited by 2 publications

(2 citation statements)

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“…Based on the strong tolerance of polymer to heterogeneous fillers, 6–9 PEEK modification by adding fibers, solid lubricants, nanoparticles and multi‐composites plays an important role in improving the friction and wear behavior without losing the strength of PEEK itself. Reinforcing fillers such as carbon fibers (CF) and glass fibers (GF), carried significant load and imparted their abrasion resistance to the matrix, if they were not peeled off from the matrix 1,10–15 .…”

Section: Introductionmentioning

confidence: 99%

“…SEM micrographs of the worn surfaces of (A) P, (B) P/10C, (C) P/15C, (D) P/20C and tribo-films on 45 # steel of (E) P, (F) P/10C, (G) P/15C, and (H) P/20C F I G U R E 6 Tribological properties of P/C/B composites: (A) friction coefficient as a function of real time, (B) temperature as a function of real time, (C) the data analysis of μ, w, and ΔT, (at 1 MPa and 2 m/s), and (D) friction coefficient and specific wear rate of P/C/B composites under different loads(1,4,6, 8 MPa) h-BN is helpful to reduce the friction and wear of P/C composites under dry friction conditions. h-BN with excellent thermal conductivity can effectively transfer and dissipate friction heat to the sliding contact surface, and prevent the softening of PEEK matrix to a certain extent, so as to reduce the wear rate of composites.…”

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confidence: 99%

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Wear resistant PEEK composites with great mechanical properties and high thermal conductivity synergized with carbon fibers and h‐BN nanosheets

Han

et al. 2023

Polymers for Advanced Techs

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It is well known that carbon fiber (CF) reinforced PEEK (polyether‐ether‐ketone) (defined as “PEEK/CF”) composites have excellent properties and have been widely used in diverse fields. Meanwhile, hexagonal boron nitride (h‐BN), as an excellent nano reinforcing agent, is often incorporated into polymer to improve its mechanical strength and thermal conductivity. Herein, PEEK matrix was regulated by adding high‐strength CF as the load‐bearing phase and 2D h‐BN sheets as the solid lubricant and thermally conductive fillers prepared by melt blending to achieve the multi‐scale packing of uniform mixing. The results show that h‐BN is well dispersed in PEEK matrix and improves the interfacial bonding between CF and PEEK matrix, exhibiting a good synergistic effect in enhancing tensile properties of composites. PEEK composite with 20 wt% CF and 4 wt% h‐BN (referred as P/20C/4B) exhibits the highest tensile strength (176.05 MPa) and thermal conductivity (0.396 W/(m·K)), which are 97.54% and 126.3% over those of pure PEEK (89.12 MPa; 0.175 W/(m·K)), respectively. In addition, PEEK composite with 10 wt% CF and 4 wt% h‐BN (referred as P/10C/4B) has excellent tribological properties with a friction coefficient of 0.15, the lowest fiction temperature (30.5°C) and a relative low wear rate of 1.62 × 10−6 mm3/(N·m) among them. The synergitic effects of h‐BN and CF on mechanical, tribological properties and thermal conductivity of PEEK composites provides a very broad prospect in their application of low frictional and wear resistant polymeric materials.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%