Home » Technologies » Raw materials diversity

Raw materials diversity

Schappe’s technical yarns are spun from a wide range of technical fibres that have unique inherent properties such as flame and/or heat resistance, chemical resistance, cut resistance, exceptionally high strength, and electro-static dissipation, etc.

These include :

Aramids

Strength
and heat resistance

Carbon

Light, strength
(used in composites)

Glass

Strength

Polyamide

Durability

Stainless Steel

Electro-static dissipation,
heat resistance
and cut resistance

Polyethylene

Cut resistance

Polyvinyl acetate

Adhesive

Thermoplastic

Regenerative polymers

Natural Fibres
(linen, hemp)

Regenerative polymers

Compression molding

Compression molding is already used with TPFL® pellets
Development and characterization of “TPFL® flakes” is ongoing
Goal is to make HP composites with injection

Bladder inflation molding

Use of TPFL® braids :

Easy lay-up
No joints, no overlap
Possibility of evolutive sections, curved parts

Real applications : Sporting goods with Carbon/PA12 TPFL® braids. Typical cure cycle: >5‘, 10 bars, T° = Tf +30°C

Diaphragm forming

Key feature of TPFL® materials :

Fibers are slipping during the process
Yarns are elongating (Up to 20%)
Absence of wrinkles in the edges

Cold stamping

Techniques that is widely used for consolidated thermoplastics, allowing fast processing

When using TPFL® materials that are not consolidated, consolidation requires:

Pre-heating of the material to processing temperature, typically Tf + 30°C
Time to allow the polymer to flow and wet-out the fiber
Cooling down the material until the T°< Tg

Raw materials diversity

Aramids

Carbon

Glass

Polyamide

Stainless Steel

Polyethylene

Polyvinyl acetate

Thermoplastic

Natural Fibres (linen, hemp)

Compression molding

Bladder inflation molding

Diaphragm forming

Cold stamping

Natural Fibres
(linen, hemp)