Spray hard phenolic foam

Abstract

The invention discloses a hard phenolic foam composition, a sprayed hard phenolic foam coating, a preparation process and an application. The rigid phenolic foam composition is obtained by mixing composite phenolic resin and mixed acid in a mass ratio of 1-10:1. The above-mentioned hard phenolic foam composition is completely atomized and mixed uniformly at a pressure of 100-200kg and a temperature of 20-50°C, sprayed from a spray gun, and evenly sprayed on the wall to form a spray-coated hard phenolic foam Insulation. The obtained spraying hard phenolic foam coating can be applied to the field of waterproof, fireproof or thermal insulation materials.

Description

technical field [0001] The invention relates to a hard phenolic foam composition, a sprayed hard phenolic foam coating, a preparation process and an application. Background technique [0002] Due to low thermal conductivity, light weight, and convenient construction, foam plastics have been widely used in the fields of thermal insulation and heat insulation. However, several foam materials commonly used at present, such as polyurethane, polystyrene board, extruded The disadvantages of large smoke generation and low heat resistance temperature have greatly restricted the practical application, especially the application in construction. [0003] Phenolic foam is a kind of foam plastic obtained by foaming phenolic resin. Compared with polystyrene foam, polyvinyl chloride foam, polyurethane foam and other materials that dominated the market in the early stage, it has special excellent performance in terms of flame retardancy. It has light weight, high rigidity, good dimension...

AI Technical Summary

Problems solved by technology

It is necessary to solve the problem that phenolic foam is easy to powder, easy to become brittle, slag dropped, easy to age, low tensile strength, poor water resistance, poor fire resistance, poor thermal insulation, and is not suitable for large-scale use of building walls. question

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