Enhancement on interlaminar shear strength and water-lubricated tribological performance of high-strength glass fabric/phenolic laminate by the incorporation of carbon nanotubes

Abstract

High-strength glass fabric (HSGF)/phenolic laminates modified with different contents of carbon nanotubes (CNTs) were fabricated by hot-compression technique. The effects of CNTs on the interface of HSGF/phenolic, interlaminar shear strength (ILSS) and water-lubricated tribological performance of HSGF/phenolic laminate were investigated. The ILSS of the laminates were tested on a universal testing machine (DY35), and the tribological properties were evaluated by a block-on-ring tribo-tester. The interfaces of HSGF/phenolic and the worn surfaces of the laminates were analyzed by scanning electron microscope. The results showed that the moderate incorporation of CNTs improved the interface of HSGF/phenolic and accordingly enhanced the ILSS of the laminate. Besides, the friction coefficient of HSGF/phenolic laminate sliding against stainless steel in water can be remarkably stabilized and lowered by the incorporation of CNTs due to the better water lubrication induced by added CNTs and the intrinsic self-lubrication of CNTs which were further graphitized during the friction and wear process. And the wear rate of the laminate can be accordingly reduced by 1 order of magnitude. The results indicate that CNTs have excellent potential in enhancing both ILSS and tribological fabric/polymer laminate composite, which will greatly improve the current situation of deterioration on mechanical properties by adding traditional solid lubricants.

Study on water resistance and tribological behaviours of basalt fibre/acrylonitrile-butadiene rubber composites under water lubrication at various temperatures

“…In this study, the tribological behaviour of BF/NBR composites under water-lubricated conditions at 30-70 C was investigated using a block-on-ring test, which has been widely applied to study the tribological performance of polymer composites for bearing application. [27][28][29][30] To discuss the effect mechanism, the inuences of water ageing on the properties of BF/NBR composites were also evaluated.…”

Tribological properties of poly(phthalazione ether sulfone ketone) composites reinforced with glass fabric modified by graphene oxide depositing

“…In consideration of energy conservation and environmental protection, lightweight materials for structural applications have drawn great attention in recent years . Fabric‐reinforced polymer composites have become the dominant advanced tribo‐materials under water environment due to their lower density, superior corrosion resistance, and eco‐friendly behavior . Glass fabric is the most frequently used reinforcement materials, which results from the unique combination of its lower density, higher stiffness and strength, nonsensitive to humidity, and resistance to chemicals .…”

Surface functionalizing effect of fillers on the tribological properties of MWCNT reinforcement HSGFs/phenolic laminate composites under water lubrication

“…The fabrics reinforced laminate composites, compared with other fillers reinforced polymer composites, exhibited a superior reinforce performance on the mechanical strength in both the transverse and longitudinal directions . Nowadays, high‐strength glass fabrics gain an increasing attention to use as a reinforcement agent in the polymer matrix, owing to its low density, low cost, high stiffness and strength, outstanding chemical resistance, and relative insensitivity to moisture . However, the basal high strength glass fabrics (HSGFs)/phenolic laminates cannot meet the industrial requirements due to the unsatisfactory friction and wear‐resistance performance of glass fabrics.…”

“…Nanomaterials are well proven to be effective to enhance the tribological performance of the laminate composites. Of various types of nanomaterials, multi‐wall carbon nanotubes (MWCNTs) exhibit excellent mechanical strength due to its unique hollow rolled‐up wall structure . However, MWCNTs tend to bundle by strong Van der Waals attractions among the nanotubes, thereby hindering their homogeneous dispersion in the polymer matrices .…”