New coupling agent for carbon fibres

New coupling agent for carbon fibres

Tuesday, 15 May, 2018

BYK-C 8013 is a solvent-free, polymeric coupling agent for improving the mechanical properties of carbon-fibre-reinforced, radical-curing systems.

BYK-C 8013 is the world’s first coupling agent for carbon fibres. It is used in vinyl esters and unsaturated polyester resins that are processed to composite parts using carbon fibres. The cross-fibre strength is greatly improved, making far greater design freedom possible. Improved fibre-matrix bonding increases both the transverse tensile strength and the flexible strength of the composite. The chemical structure of the additive provides simultaneous adhesion to the fibre and to the resin matrix. This unique property makes changes in the component design possible, and it enables particularly durable components to be manufactured. Especially in thermal curing (closed mold) processes such as SMC/BMC, pultrusion or RTM, BYK-C 8013 brings about increases in strength of up to 70 percent. This reactive additive can be introduced in the sizing during fibre production or to the resin shortly before processing.

In subsequent, so-called “second sizing”, BYK-C 8013 can, for example, be applied to the fibre in a spraying process, without the need to remove the first sizing beforehand. BYK-C 8013 is recommended for all kinds of carbon fibres.

For further information about these liquid pigment dispersions, please contact our Technical Sales Advisers.

URL: www.byk.com/en

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