Unsaturated polyester-bonded and glass fiber-reinforced beam and implementation method thereof

Abstract

The invention discloses an unsaturated polyester-bonded and glass fiber-reinforced beam and an implementation method thereof, belonging to the manufacturing field of building structure materials. The glass fiber-reinforced beam mainly consists of glulam beam and glass fiber cloth, and glass fiber cloth is bonded at the partial bottom of the beam by unsaturated polyester so that the beam is reinforced. The preparation method of the glass fiber-reinforced beam realizes the preparation of the glulam beam and the partial reinforcement of the glass fiber cloth through a series of processes of preparing materials, processing, finger jointing, cold pressing, pretreating, post treating and the like. The glass fiber-reinforced beam solves the problems that the structure is difficult to reinforce due to the blockage of connection positions and wood composites have poor performance caused by the quality defects of wood in the mode of partial reinforcement, simultaneously utilizes the unsaturated polyester to bond the glass fibers for reinforcement to save the cost of an adhesive, and can bond multi-layer glass fiber cloth to reach high reinforcement strength.

Description

technical field [0001] The invention relates to an unsaturated polyester bonded glass fiber reinforced wooden beam and an implementation method thereof, belonging to the field of building structural material manufacturing. Background technique [0002] At present, due to the protection of the environment and forest resources in various countries, high-quality wood for the production of engineering wood composite materials is relatively scarce. Countries will focus on how to use artificial fast-growing wood and low-quality wood. Poplar and other artificial fast-growing tree species have a wide planting area and abundant timber reserves in my country, but they have not been well used due to poor materials and many defects. Glass fiber is a commonly used reinforcing fiber with many excellent properties: high tensile strength, small elongation, high modulus of elasticity, good rigidity, belonging to inorganic fibers, non-combustible, good chemical resistance, dimensional stabil...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for manufacturing glass fiber reinforced wooden beams that can be used in industrial production, and to solve the problem of wood composite materials that are difficult to strengthen due to the obstruction of the connection parts and the defects of poplar wood material in the existing structure through local reinforcement. The problem of poor performance, at the same time, the use of unsaturated polyester resin to bond glass fiber reinforcement saves the cost of adhesives and can bond more layers of glass fiber cloth to achieve higher reinforcement strength. In addition , Steps 4 and 5 of this preparation method are also applicable to the maintenance and reinforcement of ancient wooden architectural relics, and are decorated with wood veneers to provide a practical way for the protection and original appearance restoration of ancient wooden structures

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