Phenolic resin composite board and preparation method thereof

Abstract

The invention provides a phenolic resin composite board and a preparation method thereof. The phenolic resin composite board comprises: a phenolic resin foam board; and at least one corrugated plate, which is embedded in the phenolic resin foam plate from top to bottom. According to the composite board, multiple corrugated boards are embedded in the phenolic resin foam board, and the corrugated boards serve as a framework, so the strength of the phenolic resin foam board is greatly improved, a flame retardant property is not changed, and meanwhile, the low-density characteristic of the phenolic resin foam board is reserved; the strength of the composite board enables the composite board to be applicable to usage scenes such as insulation boards and acoustic boards, the problems of breakage, and falling and the like of traditional phenolic foam materials are solved; and the preparation method is simple in process, low in cost and suitable for being popularized and used in the civil field.

Description

Technical field [0001] Technical Field The present invention relates to a phenolic resin material, phenolic resin, particularly to a composite panel and its preparation method. Background technique [0002] Phenolic foam having heat resistance, corrosion resistance, flame retardancy and low smoke toxicity, heat insulation performance, over a wide temperature, anti-flame penetration, aging resistance, but its large brittleness, impact strength, compressive strength, flexural strength and tensile low tensile strength, greatly affect its application. [0003] Currently on the market used widely in walls, exterior insulation board mainly phenolic foam board, this plate when the specific use of the fragile structure, easily broken, fragile, life is short, to bring great people inconvenient. Currently not enough fire-retardant capability of using sound-absorbing panels on the market, which has brought great security risk for the extensive use of sound-absorbing panels in place. In the ...

AI Technical Summary

Problems solved by technology

[0002] Phenolic foam has the advantages of heat resistance, corrosion resistance, flame retardant, low smoke and low toxicity, good heat insulation performance, wide use temperature, flame penetration resistance, aging resistance, etc., but its brittleness, impact strength, compressive strength, bending strength and tensile strength The tensile strength is low, which greatly affects its popularization and application

[0003] At present, the partition walls and exterior wall insulation boards widely used in the market are mainly phenolic foam boards. When this board is used in practice, its structure is fragile, easy to break, easy to damage, and short service life, which brings great harm to people's use. inconvenient

The flame retardant ability of the sound-absorbing panels currently used in the market is not enough, which brings great safety hazards to places where sound-absorbing panels are widely used

At present, the method of pasting glass fiber cloth and aluminum foil on both sides of the phenolic foam board has been invented. Although the strength of the foam is improved, this inhomogeneity also leads to a decline in processing performance.

The method of using honeycomb materials to strengthen phenolic foam boards has been invented at present. Although the strength of phenolic foamed plastics has been greatly improved, the preparation of honeycomb materials is not easy and the price is high, which limits the application of this foamed plastics.

Images