Technology

Tribofilm Release Mechanism

  • Pioneers of Inorganic Fullerenes

    NanoMaterials is a pioneer of inorganic, multi-layered fullerene production technology.

    The company was the first to succeed in commercially producing multi-layered, spherical and tubular nano-structures from inorganic materials.
    The first inorganic compound synthesized by NanoMaterials into multi-layered, spherical and tubular shapes has been tungsten disulfide (WS₂). These particles have notably high pressure, impact and heat resistances. They have low chemical reactivity, low toxicity and high metal bonding capacity.
    These properties, in appropriate formulations, can facilitate the creation of “super performing” lubricants, coatings, and polymer composites. Benefits of which include:

    • Better performance under extreme conditions
    • Better impact resistance
    • Greater energy efficiency
    • User-safe and environmentally friendly
    • Superior capacity to extend the life and effective operation of working mechanisms

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  • Inorganic Multi-Layered Nanofullerenes

    The company’s WS₂ multi-layered nanospheres are a remarkable scientific and commercial achievement.

    The company’s technology platform can produce extremely uniform and highly symmetrical spherical structures, composed of 20-100 concentric layers of inorganic compounds. The diameter of the primary particle can range between 30 and 70 nm.

    These multi-layered particles are extremely thermal- and pressure- resistant. Additionally, their outer layers exfoliate under extreme pressure, bonding with working surfaces to fill in wear crevices and to create a continuous super lubricating coating layer. The field of lubricants was thus a natural first application for NanoMaterials inorganic nano-fullerenes.

    As “super lubrication agents”, WS₂ nano-fullerenes have proven their capacity to reduce wear by up to 30% , depending on the base oil and working conditions. It has also been established that the tribological efficiency of the company’s WS₂ nano-fullerenes actually increases with contact pressure.

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  • Inorganic Multi-Layered Nanotubes

    Using the same platform technology, the company also produces WS₂ multi-layered, nano-tubes.

    NanoMaterials WS₂ nano-tubes have low defect densities, and are highly uniform, thus offering far better dispersability than carbon nano-tubes.

    The mechanical properties of the company’s nano-tubes include ultra-high strength modulus and pressure resistance – both dynamic (‘shock’), and quasi-static.

    Such multi-layered nano-tubes can be used in composites with various matrices (polymeric and non-polymeric), increasing the wear resistances of host matrices while improving their mechanical and thermal properties.

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  • Active Protection Nano-Lubricants

    NanoMaterials’ inorganic, WS₂ multi-layered nano-spheres represent new generation, dual-acting nano-lubricants.

    Dual-acting, surface reconditioning nano-lubricants offer enormous advantages:

    • More efficient machinery operation (slower decrease of efficiency due to wear, less impact of heating)
    • Longer machinery life (continuous wear-damage reversal)
    • Better operation under stress conditions (high-load, high temperature)
    • Longer effective oil lubricant life (less heating, less friction, less need for erosive additives in formula)
    • Reduced energy consumption
    • Lower emissions
    • Lower service requirements (wider intervals)
    • Reduced operating noise (thanks to super lubricated operation)

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  • Surface-Reconditioning Mechanism

    NanoLub® WS₂ multi-layered nano-fullerenes define a new generation of dual acting lubricants: nano-particle enhanced lubricants that combine advanced anti-friction (AF) and anti-wear (AW) functionalities. NanoLub® WS₂ introduces the concept of continuous surface re-conditioning.

    Under continuous friction, the WS2 nano-fullerenes exfoliate and create a tribofilm layer. The exfoliated nano-particle layers accumulate in wear crevices on contacting surfaces and attach to the metal surface, creating a continuous super-lubricating coating layer. This super-lubricating tribofilm layer stays attached to the contacting surface even if the lubricating oil is drained out.

    This unique surface-reconditioning (“wear repair” & surface coating) mechanism makes NanoLub® a dual-acting AF/AW agent that also extends the life and effective operation of both machinery and lubricant beyond the capacity of conventional lubricants.

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