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carbon nanotubes

  • Carbon Nanotube Compounds

    TBA’s new conductive PC/PBT carbon nanotube injection moulding compounds utilise multi wall carbon nanotube technology to give permanently conductive materials.  Special compounding techniques at low filler loadings having been developed to disperse the nanotubes ensuring the retention of physical properties and excellent cleanliness.

    ESD and shielding compounds have been produced with particular successes in PC, PC/ABS and PC/PBT compounds.  Hybrids of carbon nanotubes with stainless steel fibres have given high EMI shielding results in excess of what is achieved separately.

    The multi wall carbon nanotubes are very small hollow tubular structures of graphite carbon.  Diameter is typically 1.2 – 2.4nm and 1 nm is 10-9 metres (1,000,000,000ths).  Typically the fibrils are 10,000 nm long, with a very high aspect ratio.

    Mouldings exhibit excellent dimensional and chemical stability and are clean and non-sloughing.

    TBA have had successes in medical and military applications where good mechanical properties, re-cyclability, ease of manufacturing, with weight reductions were required.

    ECP 9603 PC/PBT/CNT is used to manufacture TBA’s bonding plug earth pin, used to ground a static safe working area, giving superior strength, weight reduction, is recyclable and replaces hard to source components.

    Grounding Plug

    TBA’s carbon nanotube compounds are frequently used to produce production aids for the electronics industry such as boxes, bins and PCB racks, safe handling equipment tools and instruments, static dissipating equipment housing and ATEX (explosive atmospheres) applications.  The compound also gives a level of 34dB EMI shielding.

    The specific shear-thinning nature of nanocomposites makes it possible to mould the materials to the normal range of thickness used in the thermoplastic industry.

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