Surface energy, hardness, and tribological properties of carbon-fiber/polytetrafluoroethylene composites modified by proton irradiation

Lv, Mei; Wang, Litao; Liu, Jing; Kong, Fancong; Ling, Ai-Xia; Wang, Tingmei; Wang, Qihua

doi:10.1016/j.triboint.2018.12.028

Cited by 22 publications

(8 citation statements)

References 29 publications

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“…It was observed that the increase of hardness and stiffness is associated with a decrease of deformability. This test confirms the strengthening effect of this combination [42,43].…”

Section: Properties Of Obtained Matrix Composites and Hybridssupporting

confidence: 83%

Bio-Based Polyurethane Composites and Hybrid Composites Containing a New Type of Bio-Polyol and Addition of Natural and Synthetic Fibers

et al. 2020

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This article describes how new bio-based polyol during the liquefaction process can be obtained. Selected polyol was tested in the production of polyurethane resins. Moreover, this research describes the process of manufacturing polyurethane materials and the impact of two different types of fibers—synthetic and natural (glass and sisal fibers)—on the properties of composites. The best properties were achieved at a reaction temperature of 150 °C and a time of 6 h. The hydroxyl number of bio-based polyol was 475 mg KOH/g. Composites were obtained by hot pressing for 15 min at 100 °C and under a pressure of 10 MPa. Conducted researches show the improvement of flexural strength, impact strength, hardness, an increase of storage modulus of obtained materials, and an increase of glass transition temperature of hard segments with an increasing amount of fibers. SEM analysis determined better adhesion of sisal fiber to the matrix and presence of cracks, holes, and voids inside the structure of composites.

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“…It was observed that the increase of hardness and stiffness is associated with a decrease of deformability. This test confirms the strengthening effect of this combination [42,43].…”

Section: Properties Of Obtained Matrix Composites and Hybridssupporting

confidence: 83%

Bio-Based Polyurethane Composites and Hybrid Composites Containing a New Type of Bio-Polyol and Addition of Natural and Synthetic Fibers

et al. 2020

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“…However, subject to the restrictions on the poor wear resistance and mechanical strength of PTFE, there are still many difficulties existing in the application of practical engineering for PTFE composites. [6][7][8] Various types of reinforcement materials including MnO 2 , 9 MoS 2 , 10 aramid fiber, 11 graphene oxide, 12,13 carbon fiber, 14 carbon nanotubes, 15 black phosphorus nanoparticles 16 and so on are added into the PTFE matrix to enhance the anti-friction and wear resistance performances of this polymer. Apart from the aforementioned reinforcement fillers, a number of polymeric materials like polyimide, 17 polyphenylene sulfide, 18 polyethersulfone (PES) 19 and polyacrylate 20 are blended into the PTFE via physical or chemical methods to produce many novel polymer alloys with outstanding tribological properties.…”

Section: Introductionmentioning

confidence: 99%

Retracted: Influence of organic montmorillonite nanoparticles on the microstructures and thermal and tribological properties of polyethersulfone and polytetrafluoroethylene composites

Yan

Xue

Wang³

et al. 2020

Polymer International

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Because of high wear rate and low thermal deformation temperature, the generalization and application of polytetrafluoroethylene (PTFE) in the field of tribology is restrained to a certain extent. In order to improve the wear resistance and thermal stability of this self‐lubricating polymer, organic montmorillonite (OMMT) nanoparticle reinforced polyethersulfone (PES) and PTFE ternary composites were prepared by the cold molding and vacuum sintering technology. The effects of sodium montmorillonite (Na‐MMT) and OMMT on the microstructures, thermal stabilities and tribological properties of PTFE composites were comparatively studied. The results show that the thermal stability of the PES/PTFE composites is clearly improved by the incorporation of OMMT nanoparticles. Not only the friction coefficients but also the wear rates of OMMT/PES/PTFE composites are less than those of Na‐MMT/PES/PTFE composites under identical tribological tests. Of all these PTFE composites, the PES/PTFE composite containing 10.0 wt% OMMT nanoparticles exhibits the best friction and wear properties (μ = 0.14, k = 5.78 × 10−15 m3 N–1 m−1). This can be attributed to the existence of a polymer multicomponent layer consisting of PTFE, PES and OMMT on the composite surface as well as the formation of uniform PTFE transfer film on the worn surfaces of metal counterparts.

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“…[4][5] Nevertheless, CFs have typical smoothness, chemical amphiphobic and interness features characteristics, resulting in unsatisfactory interface combination of CFRP. 6 Surface treatments for CFs such as chemical oxidation, [7][8][9] high energy irradiation, [10][11][12] surface coating [13][14][15] were developed to improve the interfacial bonding of composites. Nonetheless, these treatments may cause damages to the inherent strength of CFs because of high energy and other harsh conditions, as well as result in the failure to form strong covalent bonds between CF and nano-coating due to steric hindrance effect of pretreated grafted polymers.…”

Section: Introductionmentioning

confidence: 99%

Grafting the buffer interphase ''MOF‐5'' for acquiring carbon fiber reinforced composite with excellent mechanical and tribological properties

Ouyang

Zhou

Fei

et al. 2021

J of Applied Polymer Sci

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The metal organic frameworks (MOF-5) with nanoscale porosity and organicinorganic heterocyclic structure were chemically grafted onto carbon fibers by solvothermal for forming high mechanical interlocking composite architectures and releasing the interfacial forces, so as to obtain carbon fiber reinforced composite with excellent mechanical and tribological properties. With the multi-scale enhancement of MOF-5, the optimized tensile and bending strength of the composite increased by about 177.9% and 81.3%, respectively. Moreover, the friction coefficient was higher and relatively stable under the continuous wet friction condition, as well as the wear rate was reduced by 44.4%. The work suggests that the application of MOFs can be extended to the field of structural composites.

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Surface energy, hardness, and tribological properties of carbon-fiber/polytetrafluoroethylene composites modified by proton irradiation

Cited by 22 publications

References 29 publications

Bio-Based Polyurethane Composites and Hybrid Composites Containing a New Type of Bio-Polyol and Addition of Natural and Synthetic Fibers

Bio-Based Polyurethane Composites and Hybrid Composites Containing a New Type of Bio-Polyol and Addition of Natural and Synthetic Fibers

Retracted: Influence of organic montmorillonite nanoparticles on the microstructures and thermal and tribological properties of polyethersulfone and polytetrafluoroethylene composites

Grafting the buffer interphase ''MOF‐5'' for acquiring carbon fiber reinforced composite with excellent mechanical and tribological properties

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