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...

Examples

Embodiment 1

[0016] According to the mass, 10 parts of phenolic resin fire insulation board corners, waste materials, 90 parts of expandable phenolic resin, 2 parts of talcum powder, 3 parts of polyethylene glycol PEG-800 (modifier), 2 parts of H202 (surface active agent), 2 parts of n-pentane (foaming agent) mixed, after stirring evenly, then add 10 parts of xylenesulfonic acid and sulfuric acid in a mass ratio of 4:1 mixed solution (curing agent), wherein the solvent is 4:1 water: Methanol, stirred and poured into a mold to obtain a phenolic resin fireproof insulation board.

Embodiment 2

[0018] According to the mass, 15 parts of phenolic resin fire insulation board corners, waste materials, 85 parts of expandable phenolic resin, 10 parts of talcum powder, 6 parts of polyethylene glycol PEG-800 (modifier), 4 parts of H202 (surface active agent), 4 parts of n-pentane (foaming agent) mixed, after stirring evenly, then add 12 parts of xylenesulfonic acid and sulfuric acid in a mass ratio of 4:1 mixed solution (curing agent), wherein the solvent is 4:1 water: Methanol, stirred and poured into a mold to obtain a phenolic resin fireproof insulation board.

Embodiment 3

[0020] According to the mass, 18 parts of phenolic resin fire insulation board corners, waste materials, 82 parts of expandable phenolic resin, 8 parts of talcum powder, 7 parts of polyethylene glycol PEG-1000 (modifier), 6 parts of H202 (surface active agent), 6 parts of n-pentane (foaming agent) mixed, after stirring evenly, then add 14 parts of p-xylenesulfonic acid and sulfuric acid in a mass ratio of 4:1 mixed solution (curing agent), wherein the solvent is 4:1 water : Methanol, stirred and poured into a mold to obtain a phenolic resin fireproof insulation board.

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...

Examples

Embodiment 1

[0016] According to the mass, 10 parts of phenolic resin fire insulation board corners, waste materials, 90 parts of expandable phenolic resin, 2 parts of talcum powder, 3 parts of polyethylene glycol PEG-800 (modifier), 2 parts of H202 (surface active agent), 2 parts of n-pentane (foaming agent) mixed, after stirring evenly, then add 10 parts of xylenesulfonic acid and sulfuric acid in a mass ratio of 4:1 mixed solution (curing agent), wherein the solvent is 4:1 water: Methanol, stirred and poured into a mold to obtain a phenolic resin fireproof insulation board.

Embodiment 2

[0018] According to the mass, 15 parts of phenolic resin fire insulation board corners, waste materials, 85 parts of expandable phenolic resin, 10 parts of talcum powder, 6 parts of polyethylene glycol PEG-800 (modifier), 4 parts of H202 (surface active agent), 4 parts of n-pentane (foaming agent) mixed, after stirring evenly, then add 12 parts of xylenesulfonic acid and sulfuric acid in a mass ratio of 4:1 mixed solution (curing agent), wherein the solvent is 4:1 water: Methanol, stirred and poured into a mold to obtain a phenolic resin fireproof insulation board.

Embodiment 3

[0020] According to the mass, 18 parts of phenolic resin fire insulation board corners, waste materials, 82 parts of expandable phenolic resin, 8 parts of talcum powder, 7 parts of polyethylene glycol PEG-1000 (modifier), 6 parts of H202 (surface active agent), 6 parts of n-pentane (foaming agent) mixed, after stirring evenly, then add 14 parts of p-xylenesulfonic acid and sulfuric acid in a mass ratio of 4:1 mixed solution (curing agent), wherein the solvent is 4:1 water : Methanol, stirred and poured into a mold to obtain a phenolic resin fireproof insulation board.