Preparation method for low-cost environmentally-friendly modified phenolic resin fireproof thermal-insulation board

Abstract

The invention provides a preparation method for a low-cost environmentally-friendly modified phenolic resin fireproof thermal-insulation board. The preparation method comprises the following steps: mixing leftover materials and waste and old materials of a phenolic resin fireproof thermal-insulation board, expandable phenolic resin, talcum powder, a modifier, a surfactant and a foaming agent, performing uniform stirring, adding a curing agent, performing stirring, and pouring the obtained material into a mold to obtain the phenolic resin fireproof thermal-insulation board. According to the invention, the single solving method is adopted, thus environmental pollution of the leftover materials and the waste and old materials of the phenolic resin fireproof thermal-insulation board is reduced, energy consumption of the phenolic resin fireproof thermal-insulation board production is reduced, storage problems of a large number of leftover materials and waste and old materials in practical production are solved, industrial costs are reduced, improvement of economic benefits is facilitated, and meanwhile the strength and the toughness of the phenolic resin fireproof thermal-insulation board are improved, the brittleness is reduced, and requirements of buildings external wall construction (an external wall thermal insulation system) are met.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a preparation method of a low-cost and environment-friendly modified phenolic resin fireproof insulation board. Background technique [0002] Phenolic foam can be better used in external wall insulation systems due to its easy-to-obtain raw materials, low price, excellent product performance, flame retardant, self-extinguishing, low smoke, and good waterproof and air permeability. industry's attention. The production of phenolic foam insulation board is becoming more and more large-scale and industrialized. Correspondingly, a large amount of corners and waste materials have also appeared in the production and use process. Nowadays, about 500,000 liters of phenolic resin fireproof insulation boards are put into the construction market every year, and it is still increasing year by year. The recommended service life of phenolic resin fireproof insulation bo...

AI Technical Summary

Problems solved by technology

These unusable leftovers and waste materials are usually disposed of by incineration, which will cause secondary pollution to the environment