Pultruded Profiles

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Mechanical Properties A broad spectrum of mechanical properties is provided by the selection of reinforcement types, style, form & proportion in combination with different matrix. The directionality of strength in a pultruded composite can be greatly influenced by substituting longitudinal reinforcement by random mat or directional fabrics. The absolute value of the specific property desired would depend on the fibre type chosen: glass, carbon, aramid, organic or natural fibres. Table 1 indicates the effect on select mechanical properties in the axial direction for various continuous fibres.

Table 1 : Effect of Fibre Type on Select Mechanical Properties of Pultruded Profiles

Fibre type	Specific Gravity	Tensile Strength (M Pa)	Tensile Strength (G Pa)	Compressive Strength (M Pa)	Thermal Conductivity (W/m ok)
Glass(E-glass unidirectional rovings)	2.0	690	40	410	0.30
Carbon(AS graphite fibres)	1.65	1000-1500	100-140	620-970	0.85 - 1.40
Aramid(Kevlar-49 fibres)	1.28	1400	80	280	0.15