FR | EN
FLAX AND HEMP SEMI-PRODUCTS

For the manufacturing of composites, the fibers and the matrix have to be mixed during production. The fiber orientation is very important for the resulting properties. There are two groups of semi-products : the dry preforms and the "wet" (prepregs).

  • Dry preforms consist only of the fibres, the matrix will be added during production of the composite.
  • In the prepregs, the fibres are already pre-impregnated with the matrix. During manufacturing, the impregnation is completed and the matrix consolidated

DRY PREFORMS

 

PRE-IMPREGNATED PREFORMS

  • Compound
  • Prepregs
    • Thermoplastic
      • weaves
      • Roving / yarn
      • UD tapes
    • Thermoset
      • weaves
      • UD tapes
      • Roving

SHORT FIBERS

The short fibres are cut fibres that can be added during manufacturing to a polymer to reinforce it. Used in extrusion or injection moulding, they are available in different lengths and different purities. When the original fibres are not cut but crushed up to a very short length, the result is more like a powder that can be used as a filler material that also has a reinforcing effect, in extrusion and injection moulding.

  FIBRA©
F.R.D – Fibres Recherche Développement
100% Flax and/or hemp fibers
available lengths : from 1 to 150 mm
www.f-r-d.fr
  GREEN©
F.R.D – Fibres Recherche Developpement
100% Flax and/or hemp fibers
Grades available : from 150 µm to 2000 µm
www.f-r-d.fr 
 

NATHERM©
F.R.D – Fibres Recherche Developpement
100% Flax and/or hemp fibers
Available lengths : from 40 to 120 mm
www.f-r-d.fr

 

FIBRA©
F.R.D – Fibres Recherche Developpement
100%  Flax and/or hemp fibers
www.f-r-d.fr

sanelin k2 evolution  

SANELIN K2 EVOLUTION©
Saneco
100% Flax
www.saneco.com

NON WOVEN MAT

A material formed from fibres or yarns without interlacing.
The reinforcing fibres and the matrix are already mixed in this material, the production and shaping of the composite can go fast: heating up the mixed random mat above the melting point of the thermoplastic and shaping it by a cold press. The random mats can be used in liquid moulding, like RTM and vacuum infusion. This type of preform is used a lot in the automotive industry.

fibriplast  

FIBRIPLAST© FIBRIBOARD©
ECOTECHNILIN
Flax/Hemp/ PP recycled or white
www.eco-technilin.com

 

FIBRIBOARD©
ECOTECHNILIN
Flax / Biosourced TS matrix
www.eco-technilin.com

 

FIBRICARD©
ECOTECHNILIN
Sandwich / Flax / honeycomb –bio sourced TS matrix
www.eco-technilin.com

 

FIBRICORK©
ECOTECHNILIN
Sandwich / Flax / cork – bio sourced TS matrix
www.eco-technilin.com

 

100% MAT FLAX OR HEMP
F.R.D – Fibres Recherche Developpement
100% flax or hemp, from 50 to 2500g/m2
www.f-r-d.fr

 

SPUNLACED NON WOVEN MAT
NORAFIN

65% Flax/35% Viscose, 3D Performance pattern, 130 gsm
www.norafin.com

ROVING

Slivers or pre-yarns processed into a parallel ribbon-shaped structure  with little or no twist.
When the stiffness and the strength of composites made with low-twist rovings is back-calculated into the stiffness and strength of the rovings, very high values are obtained.

NATTEX ROVING DEHONDT   NATTEX ROVING©
DEHONDT GROUPE
100% Flax
www.flaxtechnic.fr
ROVING SAFILIN   ROVING LOW TWIST
SAFILIN
100% Flax
www.safilin.fr 
LINCORE   ROVING COMMINGLED - LINCORE®
GROUPE DEPESTELE
Flax / PP, PLA
www.groupedepestele.com

WEAVES

A material constructed of interlaced yarns, fibres or filaments.
Different weave patterns can be made, leading to different properties on a mechanical level but also on the stability of the orientation and drapability. Ongoing developments include weaving with rovings and UD-tapes. There are 2 types of weaves: the balanced weaves and the UD-weaves. Prepreg fabrics: The matrix material can also be added to a textile, depending on the type of matrix, thermoset or thermoplastic. Many types of fabric, 100% flax or prepreg, co-mingled fabric are now available.

MULTIAXIAL
Consists of different uni-directional fibre layers, each layer with their own direction, which are stitched together by means of very fine threads.
The important parameters of a non-crimp fabric are the number of layers and the direction of the layers, as well as the areal density of each layer. The advantage of a non-crimp fabric is that the different layers are straight (or flat) and therefore have no crimp.

DRY WEAVES  


  TWINFLAX©
DEHONDT GROUPE
100% flax, 2D, from 200 to 500 g/m2
www.flaxtechnic.fr
 

LINCORE©
GROUPE DEPESTELE
100% flax, UD à 0° or at 90°, taffeta 1/1 or 2/2, sergé 2/2.
www.groupedepestele.com

 

NATTEX©
DEHONDT GROUP
100% flax, UD or 2D, 300 at 700g/m2
www.flaxtechnic.fr

Light fabric  

AMPLITEX©

BCOMP
Flax
Light fabrics
www.bcomp.ch

Braid  

AMPLITEX©

BCOMP
Flax Braid
www.bcomp.ch

MULTIAXIAL  


 

BIORENFORTS®

TERRE DE LIN

100% flax
500 g/m2
With epoxy or polyester matrix
www.terredelin.com

Bcomp non crimp  

AMPLITEX©

BCOMP
Flax
Non crimp, UD, bi-axial
http://www.bcomp.ch/
Power Ribs  

AMPLITEX©

BCOMP
Flax
Power ribs
http://www.bcomp.ch/

PREPREG WEAVES  


  NATTEX P-PREG© 
DEHONDT GROUP
Flax
Matrix TP and TD : PP, PLA, PA, polyester, epoxy
From 300 to 1000 g/m2
www.flaxtechnic.fr
  FLAXPREG© - FLAXPLY©
LINEO
Flax
Matrix TD: epoxy
UD 150 and 170g/sqm
Balanced fabrics from 150 to 550g/sqm
www.lineo.eu
 

LINCORE©
GROUPE DEPESTELE
Comingled flax with TP : PLA, PP matrix
UD at 0° or at 90°, taffeta 1/1 or 2/2, sergé 2/2
www.groupedepestele.com

 VARIAN

VARIAN©
CULTURE IN
Pre-impregnated flax fabric with vegetal matrix
http://www.culturein.eu

COMPOUND

A “prepreg” of short fibres is called a compound.
These are pellets of a thermoplastic in which short fibres are mixed. The short fibres are fed to a molten thermoplastic in an extrusion line, where a rotating screw mixes the fibres with the thermoplastic. The high shear forces reduce the length of the fibres. There are different compounds available, with different matrix materials and different volume percentages of fibres.

 

LINCORE CP ©
GROUPE DEPESTELE
Flax
Matrix PVC, PP, PLA, ABS, PLA
www.groupedepestele.com

 NAFILEAN  

NAFILean©

APM PLANET
Hemp / PP
www.apm-planet.com

 

ECOTECHNILIN
Flax / PPC
www.eco-technilin.com

UNI-DIRECTIONAL PREPREG

Refers to fibres that are oriented in the same direction.

ud prepreg  

PROCOTEX
UD flax prepreg
Matrix TP and TS
www.procotex.com

flaxtape  

FLAXTAPE©

LINÉO
UD flax prepreg

http://flaxtape.com/