Continuous fiber-reinforced thermoplastic composite resin rib

Abstract

The invention provides a continuous fiber-reinforced thermoplastic composite resin rib. The continuous fiber-reinforced thermoplastic composite resin rib is made by coating and splicing a continuous fiber-reinforced thermoplastic composite material into lines and performing pultrusion; continuous fiber-reinforced resin prepreg is prepared from 55 to 70 parts of continuous fiber and 30 to 45 parts of modified resin. The product has high designability, and the resin and the fiber can be selected reasonably according to actual demands in order to achieve a best economical effect; the continuous fiber-reinforced thermoplastic composite resin rib has the advantages of light weight, high specific strength, high specific modulus, high corrosion resistance, high waterproofness and high abrasion resistance; the product is inertial to a plurality of acids and alkalis, and has impact resistance and a high breaking strain value; high designing flexibility is achieved, the requirements on particular application can be met by selecting proper fiber kinds, fiber contents and fiber orientations; the selected resin is thermoplastic resin, so that pollution gas is not produced in a production process, the resin can be recycled.

Description

technical field [0001] The invention belongs to the field of new building materials, in particular to a continuous fiber-reinforced thermoplastic composite resin bar used for replacing steel bars in concrete structures. Background technique [0002] Steel bar refers to the steel used for reinforced concrete and prestressed reinforced concrete. Its cross section is circular, sometimes square with rounded corners, including smooth round steel bar, ribbed steel bar, and twisted steel bar. Light round steel bars are actually small round steel bars and discs of ordinary low carbon steel. Deformed steel bars are steel bars with ribs on the surface. Steel bars mainly bear tensile stress in concrete. Due to the action of ribs, deformed steel bars have greater adhesion to concrete. knot ability, so it can better withstand the action of external force. Steel bars are widely used in various building structures, especially large, heavy, light thin-walled and high-rise building structur...

AI Technical Summary

Problems solved by technology

[0003] FRP bars are composite materials made of high-strength glass fibers, synthetic resins as matrix materials, and an appropriate amount of auxiliary agents. However, the materials used in FRP bars cannot be recycled, and some harmful gases are produced during the production process. Not only does it cause damage to the environment, but it even causes harm to the human body, so it hinders the promotion and application of resin tendons to a certain extent.

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