flax, an innovating plant natural fibres
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Constituents of a flax fibre
Weight (%)
Cellulose 65-85
Incrustants 5-20
Lignine 1-5
Waxes 1
Water 8-10
Soluble matter 4
Wolrd production of natural and synthetic fibres (1)
Million tons
Cotton 21,2
Wool 1,4
Polyester 19,3
Polyamide 3,7
Polypropylene 2,9
Acrylic Polymer 2,6
Thermo E-Glass 2,2
Carbon 0,017
Plant fibres (not wood or cotton) 5,0
FIBRES (kT) 2002 2003 2004
Flax 750 748 750
Jutes and similar fibres
2 861 2 749 2 773
Sisal 287 301 306
Hemp 74 83 83
Ramie 242 269 269
Availability of resources (2)
Flax, an innovating plant
T G A of a flax fibre
Microscopic section of flax fibre in a composite material (Industrial thesis Dehondt
Technologies. 2006)
Natural fibres
Flax fibres
(1) Sauter Report, The Fiber Year 2003. Conf. Natural Fibres 2004 FAO (2) FAO 2003
For more information : contact@flaxtechnic.com
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Fibre bundle Ø 50-100 µm
Elementary fibre Ø 10-20 µm
Cross section of flax stem
With a wealth of expertise in natural fibres and especially in flax fibre, Groupe DEHONDT® launches an innovative range in composite reinforcement : FLAX TECHNIC
FLAX TECHNIC exploits the intrinsic mechanical properties of long flax fibres and fills a slot in the market next to glass and carbon reinforcement, opening prospects along the path toward eco-composites.
Groupe DEHONDT® is present at all stages of the technological transformation of raw materials for the flax industry :
Design, manufacture and marketing of materials and industrial equipment
Marketing of flax fibre reinforcement and semi-products
More than 8 % of its turnover is spent on R&D.
FLAX TECHNIC consists of 3 types of reinforcement : NATTEX ®, TWINFLAX®, LINTEX®, which are implemented according to their application : automobile, aeronautics, rail, marine, sport & leisure, construction, etc.
FLAX TECHNIC represents a large range of natural flax fibres issued from a specific culture, different from flax fibres for the textile industry. All of these products incorporate a complete quality approach that englobes : Traceability of raw materials from the seed to growing conditions, harvesting and
processing Qualified products meeting specific standards (ISO and NF XP T 25-501) for technical flax
fibre Experience of over 10 years in the use of bio-based reinforcement in composite
materials working in collaboration with industry players and recognized composite laboratories
PRESENTATION
Identifications Designation Applications
Nattex Roving Roving
Composites
Nattex Fabrics Fabrics
Nattex P-Preg Prepreg
Twinflax Design Fabrics
Twinflax P-Preg Prepreg
Lintex Short fibres Plastics / Composites
For more information : contact@flaxtechnic.com
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PRESENTATION II
For more information : contact@flaxtechnic.com
Manufacturating process
Transformation process
Crop of Composites
Technical Flax
Producer of flax straw
Technical fibre decortication
Surface treatment and sizing
Technical flax raw
LINTEX
NATTEX Roving
NATTEX Fabrics
TWINFLAX TWINFLAX
P-Preg
NATTEX
P-Preg
Our know-how
Contract farmer
Producer of Composites
Technical Flax
Manufacturer of semi-finished products
Transformer composites
End-users
- Chopped fibres - Mat
- Pultrusion - Filament winding - Pellets
- RTM, Infusion - Thermocompression
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PRODUCTS
NATTEX® Roving
Available range
Semi-finished product in natural fibre in the form of continuous technical flax fibres
Code Designation Nattex® Roving
N/1L Nattex 1L Roving direct in natural fibres – pure flax – 1g/m
N/2L Nattex 2L Roving direct in natural fibres – pure flax – 2g/m
N/3L Nattex 3L Roving direct in natural fibres – pure flax – 3g/m
N/5L Nattex 5L Roving direct in natural fibres – pure flax – 5g/m
N/10L Nattex 10L Roving direct in natural fibres – pure flax – 10g/m
Characteristics Data
Titration 1 g/m à 10 g/m
Length of bobbins 200 to > 1000 m
Mechanical properties (XP T 25 501 –2)
• Tensile strength 500 MPa
• Tensile module (Young) 45 GPa
• Tensile elongation 2%
Presence of reactives Sizing
Thermal degradation > 230°C
Packaging Cardboard core
Ø 75 mm
Product applications Fabrics, non-crimp fabrics, filament winding, pultrusion –extrusion, fibre placing
For more information : contact@flaxtechnic.com
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PRODUCTS
NATTEX ® Fabrics
Characteristics Data
Width 1200 mm
Presence of reactive sites No treating
Packaging Rouleau 50 m
Mechanical properties ISO 527
VARIM process & epoxy resin – Vf=40 %
• Tensile strenght 550 MPa
• Tensile module (Young) 32 GPa
• Tensile elongation 1.7 %
Product applications
Lay up, infusion, Resin Transfer Molding
Available range
Technical fabric in natural flax fibre designed from untwisted roving
For more information : contact@flaxtechnic.com
Code Désignation Nattex® Fabrics / Laize 1000 mm
N/UD220 Nattex UD 220 Uni-directional 220 g/m²
N/UD400 Nattex UD 400 Uni-directional 400 g/m²
N/2D400 Nattex 2D 400 Plain 1/1 400 g/m²
N/2D700 Nattex 2D 700 Plain 1/1 700 g/m²
N/2D350 Nattex 2D 350 Twill 3/3 350 g/m²
N/2D600 Nattex 2D 600 Twill 3/3 600 g/m²
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PRODUCTS
NATTEX ® P-Preg
Available range
Characteristics Data
Width 1000 mm
Presence of reactive sites Sizing
Fibres content > 60% (weight)
Packaging Roll of 25 m
Options Laminates
Mechanical properties ISO 14125
Compression molding & PA11 resin – Tv=55 %
• Flexural strength 200 MPa
• Flexural module (Young) 22 GPa
• Elongation 2,2 %
Product applications Thermo compression molding , static press, autoclave
Code Designation NATTEX® P-Preg – Polyamide 11 / Width 1000 mm
NP/PA11 750 Nattex P-Preg PA11 UD 750 Pre-preg fabrics uni-directional in natural fibres – flax 750 g/m²
NP/PA11 900 Nattex P-Preg PA11 P1/1 900 Pre-preg fabrics uni-directional in natural fibres – flax 900 g/m²
Code Désignation NATTEX® P-Preg – PolyLactic Acid / Width 1000 mm
NP/PLA 800 Nattex P-Preg PLA UD 800 Pre-preg fabrics uni-directional in natural fibres – flax 750 g/m²
NP/PLA 950 Nattex P-Preg PLA P1/1 950 Pre-preg fabrics uni-directional in natural fibres – flax 900 g/m²
Code Désignation NATTEX® P-Preg - Polypropylene / Width 1000 mm
NP/PP 750 Nattex P-Preg PP UD 750 Pre-preg fabrics uni-directional in natural fibres – flax 750 g/m²
NP/PP 900 Nattex P-Preg PP P1/1 900 Pre-preg fabrics uni-directional in natural fibres – flax 900 g/m²
P-Preg is a powder-coated fabric woven from flax fibres that are pre-impregnated with thermoplastic resins
For more information : contact@flaxtechnic.com
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PRODUCTS
TWINFLAX®
Characteristics Data
Width 1500 mm
Drapeability Bonne
Thermal degradation > 230°C
Packaging Roll of 50 m
Mechanical properties ISO 527
VARIM process & TP resin – Vf=50 %
• Tensile strenght 100 MPa
• Tensile module (Young) 10 GPa
Available range
Product applications Lay up, infusion, Resin Transfer Molding, film stacking
Technical fabric in natural flax fibre designed from non-coated twisted strands
For more information : contact@flaxtechnic.com
Code Désignation TwinFlax ® / Laize 1500 mm
HC06C294 TwinFlax 2D 235 Fabrics bi-directionnel - Flax fibres - 235 g/m²
T294/PA11 TwinFlax P-Preg PA11 500 Pre-preg fabrics - 50% weight - 500 g/m²
T294/PP TwinFlax P-Preg PP 500 Pre-preg fabrics - 50% weight - 500 g/m²
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TWINFLAX P-PREG PA11
PRODUCTS
LINTEX®
Product applications
- Reinforcement, charge for compounds, concrete, etc. - Mats - Feeder fibre FDS 390
Code Designation Lintex ®
L/M06F Lintex® M06 F Natural flax fibres calibrated to 6 mm_10-20 µm
L/M10F Lintex® M10 F Natural flax fibres calibrated to 10 mm_10-20 µm
L/M20F Lintex® M20 F Natural flax fibres calibrated to 20 mm_10-20 µm
L/XL50F Lintex® XL50 F Natural flax fibres calibrated to 50 mm_10-20 µm
L/PL10F Lintex® PL10 F Mixed natural flax fibres and charges, calibrated to 10 mm
L/BT2 Lintex® BT2 Natural charges made with shives milled to 2 mm
Available range
Semi-finished natural flax fibre product in the form of calibrated fibre lengths
For more information : contact@flaxtechnic.com
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EQUIPMENTS
FDS 390 F D S = Fibre Dosing System Specific feeder dedicated to natural fibres, including flax, hemp or wood
Advantages Dosing designed for natural fibres Universal for multiples fibre : flax, hemp, wood Device adaptable to many production processes such as extrusion Topping output column feeder System forcing
Specifications Column width 390 mm Regulation 10 to 100 kg of raw material per hour Dosing precision +/- 5% (depending on material) Integration deconditionning - feeder Anti-dust mechanism Fast and secure maintenance Options :
o Detection of metal o External pneumatic power
Identification F.D.S. 390 Fibre Dosing System 390 390 width of feeder column in mm Weight 975 kg Dimensions 3,00 m x 1,20 m x 2,50 m (L x l x h)
FDS 390, fibre feeder designed for bio-materials
For more information : contact@flaxtechnic.com
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EQUIPMENTS
NATCUT Cutter
The NATCUT cutting device can adjust a spray-up system to use continuous natural fibers. After several years of development, NATCUT can now be installed on robotic or semi-automatic equipment in place of chopper guns for spray-up. When used with NATTEX® Roving, the implementation of composite parts by spray up is now possible.
NATCUT, designed for spray up.
Specifications Fed with 2 or 4 bobbins of 3000 Tex Discharge rate between 2 and 10 kg/min Dimensions of NATCUT (without robot)
o Height 530 mm o Width 255 mm o Length 350 mm
Electrical power < 1 kW Weight 5 - 15 kg depending on model On-site setting up study on request
For more information : contact@flaxtechnic.com
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Karver pulley
Flax Floor
Scube
Smartphone cover
NA
UTI
SME
BU
ILD
ING
TR
AN
SPO
RT
ELEC
TRO
NIC
S
Pour plus d’informations : contact@flaxtechnic.com
Zodiac boats
Wall panel
EMASIA concept car Bamboo bike
Tablet support
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SPO
RT
& L
EISU
RE Indoor furniture
Sandwich panel Automotive parts
CREATIONS & APPLICATIONS
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