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Case studies / Technicals Fibers
What is polyacrilonitrile (PAN)?



Polyacrylonitrile is the most common precursor used to make carbon fiber.

Polyacrylonitrile (PAN) is a synthetic resin prepared by polymerization of acrylonitrile.

It belongs to the important family of acrylic resins and is a tough and rigid thermoplastic material that, resistant to most solvents and chemicals, burns slowly and has a low permeability to gases.

Fibers obtained by precision cutting in a wide range of cutting diameters and lengths are used for REINFORCEMENT in a wide variety of industrial applications. These include the manufacture of adhesives, castings, composite materials (“composites”), filters, acid battery plates, paints, paper, sealants and refractory materials.

It is considered an added-value polymer as, besides of reinforing the application where it is included, this material has intumescent behaviour (fire protective) and several studies reveal an increase of the matrix-fibre union strength compared to other traditional fibres on mortars and pavements.

The acrylic PAN fibre pulp is as an alternative to partially replace other expensive fibres such as aramid or even asbestos for the manufacture of brake pads and clutch discs. TGA shows its high thermal stability and carbonization process, keeping 40% of its initial weight.


RIMSA supplies the following varieties of polyacrylonitrile fiber

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