Pultrusion material production system and method and glass fiber reinforced plastic pultrusion strip

Abstract

The invention discloses a pultrusion material production system and method and a glass fiber reinforced plastic pultrusion strip. The pultrusion material production system comprises a yarn supply system, an impregnation system, a curing system and a traction mechanism; the impregnation system comprises a first impregnation area, a second impregnation area and a pultrusion area, and a draining plate is arranged between the first impregnation area and the second impregnation area; the first impregnation area is used for primary resin impregnation of fibers, the draining plate is used for scraping part of primary resin impregnated in the fibers, and the second impregnation area is used for secondary resin infiltration of the fibers; and the fibers penetrate through the pultrusion area to be extruded into a fiber-resin material in a preset shape. According to the pultrusion material production system, bubbles generated during secondary resin impregnation of the fibers are few, the contentof bubbles in glass fiber reinforced plastics obtained through pultrusion is reduced, and the strength of the glass fiber reinforced plastics is high.

Description

technical field [0001] The invention relates to the technical field of pultrusion technology, in particular to a pultrusion material production system, a production method and a fiberglass pultrusion strip. Background technique [0002] FRP pultruded profiles have the characteristics of good insulation, corrosion resistance, light weight, tensile strength, impact resistance, sound insulation, heat insulation, etc., and are widely used in chemical anticorrosion, sewage treatment, electrical insulation, energy mining, transportation, electronic communications and other fields . FRP pultrusion profiles are produced by the continuous production method of composite materials. The untwisted glass fiber rovings on the creel and other continuous reinforcing material mats, polyester surface mats, etc. are impregnated with resin, and then passed through a molding die that maintains a certain cross-sectional shape, and Make it out of the mold continuously after curing in the mold. ...

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Problems solved by technology

[0003] However, air bubbles will be generated during the process of impregnating glass fiber yarn with resin, resulting in high air bubble content in FRP obtained by pultrusion, which will affect the strength of FRP

In order to reduce the air bubbles in the FRP obtained by pultrusion, the current commonly used method is to squeeze out the air bubbles in the resin during the overflow or pultrusion process, but this method is difficult to squeeze out the air bubbles in the resin inside the FRP

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