FRP Tensile Extrusion Process Reinforced Material-glass Fiber Yarn

Using enhanced infiltration agent, untwisted glass fiber roving can be divided into three kinds of composite original filament, direct untwisted roving and expanded untwisted roving. Due to the uneven tension, the polyfilament is easy to overhang, which forms a loose ring at the feeding end of the pulling equipment, which affects the smooth progress of the operation. Direct non-twist roving has the characteristics of good binding properties, fast resin soaking speed and excellent mechanical performance, so most people tend to apply direct non-twist roving.(FRP profile) expanded untwisted roving is conducive to improve the transverse strength of the products, such as coiled untwisted roving and air deformation untwisted roving. The expanded untwisted roving has the high strength of continuous long fiber and the fluffy nature of short fiber. It is a kind of material with high temperature resistance, low thermal conductivity, corrosion resistance, high air volume and high filtration efficiency. Some fibers of the expanded untwisted roving swell into a single filament state, so it can also improve the surface quality of the extrusion forming products.(FRP HV fan)
At present, expanded roving has been widely used at home and abroad, warp and weft for decoration or industrial weaving, can also be used in the production of friction, insulation, protection or sealing materials. The performance requirements of glass fiber roving for extrusion are: (1) no overhang; (2) uniform fiber tension; (3) good bundle formation; (4) good wear resistance; (5) less broken ends, not easy to lift; (6) good infiltration, fast resin immersion rate; (7) high strength and stiffness.
In the production of glass fiber reinforced plastic pull extrusion profile products, in addition to glass fiber yarn sometimes also need to use glass fiber felt or cloth and other types of reinforced materials.