Anti-static agent for electrically conductive thermoset resins with maintained mechanical performance and color

TUBALL™ graphene nanotubes (also known as single wall carbon nanotubes) are the most effective anti-static agent. This conductive filler avoids drawbacks in other key parameters, giving thermoset compound manufacturers, engineers and installers the ability to produce highly competitive composites and coatings with a totally new set of properties.

Anti-static agents: traditional vs TUBALL™

Note. This diagram provides average trends compared with other additives based on OCSiAl data. Product performance may vary depending on product type and formulation.

In comparison to conventional ESD additives used for various conductive thermoset resins, such as carbon black, carbon fibers or ammonium salts, TUBALL™ graphene nanotubes deliver the level of conductivity while at the same time preserving the original color of the thermoset compound and maintaining or even improving beneficial mechanical properties.

Color change, RAL

Graphene nanotube technologies are widely applied in most industries, including the automotive, construction, alternative energy, petrochemical, healthcare, pharmaceutical, electronics, and marine transportation sectors, as well as in cleanrooms and sports equipment.

To adapt nanotubes to a standard manufacturing process without purchasing specific equipment or changing the original formulation, OCSiAl has developed TUBALL™ MATRIX line of concentrates. TUBALL™ MATRIX concentrates are compatible with the most commonly used technologies for the production of fiber-reinforced composites, including hand layup, filament winding, pultrusion, SMC/BMC, and spray-up.

TUBALL™ MATRIX meets key technical requirements

Parameter Ammonium compounds Carbon black TUBALL™ MATRIX
Working dosage, wt.% 0.2–4 4–12 0.1–0.5
Resistivity range, Ω/sq 108–1011 105–1011 104–1011

Influence on mechanical performance

small negative strong negative none
Influence on rheology none strong negative acceptable
Color opportunity possible none possible
Application via spray technology possible challenging possible
Dust formation during production none high none
Resistivity independent of humidity no yes yes
Stable resistivity over time no yes yes

Results for optimized formulation based on OCSiAl data.

Applying only 0.1 wt.% of TUBALL™ MATRIX in thermoset compounds leads to:

  • Uniform, permanent conductivity throughout the whole service life
  • Preserved original color of compound
  • Maintained or even enhanced durability of the material
  • Highly competitive product without additional investments  

    TUBALL™ MATRIX anti-static masterbatches are available for all industry-standard thermoset systems, including acrylic, melamine, epoxy, phenolic, polyester, polyurethane and vinyl-ester.

    TUBALL™ for thermosets

    ProductCarrierCompositionTarget systems
    EpoxyPolyesterVinyl-esterPolyurethaneEpoxyPolyesterVinyl-esterPolyurethaneMelaminePhenolic resolesAcrylicEpoxyPolyurethaneAcrylicPhenolic resoles
    TUBALL™ MATRIX concentrates (Black flakes paste @ standard dosage 0.1%–1.0%)
    matrix 201PlasticizerFatty acid glycidyl ester
    (2,3-epoxypropyl neodecanoate,
    CAS-No. 26761-45-5)
    matrix 202PlasticizerFatty carboxylic acid ester derivatives
    matrix 203Plasticizer + stabilizing agentFatty acid glycidyl ester
    (2,3-epoxypropyl neodecanoate,
    CAS-No. 26761-45-5) +
    (polymer + ammonium salt of
    polyolefins-based derivative
    (CAS-No. 398475-96-2))
    matrix 204Plasticizer + stabilizing agentTriethylene glycol dimethacrylate
    (CAS-No. 109-16-0) + ammonium salt
    of polyolefins-based derivative
    (CAS-No.  398475-96-2)
    matrix 207PlasticizerAlkyl glycidyl ether (Oxirane,
    mono[(C12-14-alkyloxy) methyl]
    derivative, CAS-No. 68609-97-2) +
    ammonium salt of polyolefins-based
    derivatives (CAS-No. 398475-96-2)
    matrix 208Plasticizer + stabilizing agentAlkyl glycidyl ether (Oxirane,
    derivative, CAS No. 68609-97-2)
    + ammonium salt of
    polyolefins-based derivatives
    matrix 209PlasticizerFatty carboxylic acid ester derivatives
    matrix 301SurfactantEthoxylated alcohol (C12-15-branched and linear, ethoxylated propoxylated,
    CAS No. 120313-48-6)
    matrix 302Surfactant + stabilizing agentAlkylene glycol derivative + stabilizing agent ((disodium 2,2'-([1,1'biphenyl]-4,4’diyldivinylene)
    CAS No. 27344-41-8))
    TUBALL™ suspensions COAT_E (Black liquid @ standard dosage 1.5%–6.4%)
    coat_e h₂o 0.4% (sdbs) betaWater + distyryl- biphenyl-derivativeWater + distyrylbiphenyl-derivative
    (CAS No. 27344-41-8)
    coat_e h₂o 0.4% (dbd) betaWater + anionic surfactantWater + anionic surfactant (sodium dodecylbenzenesulfonate
    (CAS No. 25155-30-0)

    Related videos

    TUBALL™ for thermosets: new area of development and results from 2019 (Vladimir Kravchenko, OCSiAl

    Application of graphene nanotubes in composite materials (Jim Lin, Zhongshan A&E Machinery Industry)

    Contact us to discuss your project specifications or to request a TUBALL™ MATRIX sample