TechnoFiber Line

Excellent mechanical properties, very good impact and notched impact strength

Long Glass Fibre: Strong and Light
TechnoFiber products are long glass fibre reinforced thermoplastics made by TechnoCompound GmbH. These raw materials are fashioned into so-called tailor-made compounds upon customer specifications. Nearly all partly crystalline and amorphous thermoplastics can be used as thermoplastic matrix. Our long glass fibre products are predestined for the manufacturing of components, which are exposed to extreme mechanical stress - as well as to high temperatures - which until recently were made of light-weight metal or thermo-set plastics.

The long glass fibre reinforced tubular pellets with a
diameter of approx. 2-3 mm are available in lengths of

10, 15 and 20 mm. Fibre and pellet are of the same length.

The pultrusion technology applied by TechnoCompound coats each glass fibre filament with a polymer matrix and joins fibre and matrix.

Long Glass Fibre versus Short Glass Fibre

Moulded parts made of short glass fibre reinforced polypropylene already meet high requirements in terms of thermo stability and shrinkage. TechnoFiber compounds reach a degree of stability and stiffness which is more than 30 % higher, the rates of notched impact strength are even 300 % higher than those of short glass fibre compounds.

TechnoFiber
 

PP LGF20

PP LGF30

PP LGF40

PP LGF50

Property

Test method/conditions

Unit

LGF

LGF

LGF

LGF

Density

ISO 1183

g/cm³

1.06

1.12

1.22

1.29

Moisture content

Infrared 105 °C, 15 min

%

<0.10

<0.10

<0.10

<0.10

Ash content

ISO 3451 (625 °C)

%

20

30

40

50

Charpy impact strength, notched

ISO 179 1eA (23 °C)

kJ/m²

17 - 20

16 - 19

14 - 18

15 - 18

Tensile modulus

ISO 527-1

MPa

5000

7000

8500

10000

Recommendations regarding Processing, Safety
and Responsibility
For general recommendations please click here.

Processing Recommendations
TechnoFiber products must be processed gently in order to minimise fibre fracture. The longer the fibres in a component, the better the mechanical properties. The medium fibre length in the component should be kept as high as possible. If the fibre length in the component is larger than the critical fibre length Ic and with optimum fibre-matrix-adhesion, the maximum reinforcement effect of the polymer can be achieved. The diagram on the opposite side shows the impact of fibre length on composite material properties for long glass fibre reinforced polypropylene.

Typical Applications
LGF products are applied in the following industries:

• Automotive industry: battery holders, wheel covers, ash trays, engine insulation, gear shift sticks, electronic accelerator pedals, exhaust trims ...
• Electrical industry: casings for power tools ...
• Leisure industry: snowboard bindings ...
• Construction industry: wear-resistant conveyor belts
• Furniture industry: fittings, chair frames, hinges ...

Processing Temperatures

Product

PP LGF20

PP LGF30

PP LGF40

PP LGF50

Melt

240 - 275 °C

240 - 275 °C

240 - 275 °C

240 - 285 °C

Cylinder

230 - 270 °C

250 - 290 °C

250 - 290 °C

250 - 290 °C

Tool

40 - 70 °C

40 - 70 °C

40 - 70 °C

40 - 70 °C

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