Light fiber composite plate and production method thereof

Abstract

The invention discloses a light fiber composite plate which comprises a facing layer, a reinforcement layer and a core material which are sequentially arranged from exterior and interior. The core material is formed in the manner that an organic silicone modified polyvinyl alcohol adhesive is used for bonding agricultural waste fibers or waste textile fiber in a die pressing manner, wherein the weight of the adhesive is 0.1 time to 15 times of the weight of the fibers. The adhesive is formed by compounding an organic silicon modifying agent and a polyvinyl alcohol water solution, polyvinyl alcohol accounts for 0.1% to 15%, the organic silicon modifying agent accounts for 0.1% to 25%, and the rest of the adhesive is water which is supplemented to 100%. The invention further discloses a production method of the light fiber composite plate. By means of the light fiber composite plate and the production method of the light fiber composite plate, raw materials which are wide, easy to obtainand low in cost are used for producing the high-strength light fiber plate, the organic silicone modified polyvinyl alcohol adhesive maintains the advantages of being safe, environment-friendly, freeof formaldehyde, high in bonding strength and low cost of the polyvinyl alcohol and meanwhile overcomes the defect of insufficient water resistance of the polyvinyl alcohol, in addition, the reinforcement layer is added in the plate, and therefore the strength, hardness and water resistance of the plate can be effectively improved.

Description

Technical field [0001] The invention relates to a plate structure, in particular to a lightweight fiber composite plate and a production method thereof, and belongs to the technical field of building materials. Background technique [0002] Man-made boards are a kind of building materials with a wide range of applications. The current man-made boards are basically made of wood fiber applied with adhesive. One of the problems faced by wood fiber is that the supply of wood resources cannot meet the market demand, and due to excessive logging of forest resources , Resulting in the destruction of vegetation, will seriously affect the ecological environment. In addition, another problem with man-made panels is that the adhesives used are still mainly urea-formaldehyde resins. In subsequent use, formaldehyde will be slowly released, and the released formaldehyde will be free in the environment in which it is used, and live in an environment where formaldehyde exceeds the standard for a...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a light fiber composite board, which produces high-strength composite boards with widely available and cheap agricultural waste fibers or waste textile fibers. Lightweight fiber board, the adhesive used in the production of the board is silicone modified polyvinyl alcohol adhesive, which not only retains the advantages of polyvinyl alcohol adhesive safety and environmental protection, no formaldehyde, high bonding strength, and low cost, but also overcomes the water resistance of polyvinyl alcohol Insufficient resistance defects, and a reinforcement layer is added to the board, which can effectively improve the strength, hardness and water resistance of the board

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