Polyurethane flame-retardant thermal-insulation material and preparation method thereof

Abstract

The invention provides a polyurethane flame-retardant thermal-insulation material and a preparation method thereof. The polyurethane flame-retardant thermal-insulation material is composed of a component A and a component B, wherein the component A is composed of phenol formaldehyde resin, a brominated epoxy resin, phosphorous flame-retardant polyether glycol, an organosilicon foam stabilizer, a catalyst dimethylethanolamine, a catalyst dibutyltin dilaurate, a flame retardant and a foaming agent monofluorodichloroethane; and the component B is a flame-retardant polyisocyanate curing agent. The invention also provides a preparation method of the outer wall thermal-insulation material. The thermal-insulation material has excellent mechanical properties and high flame retardancy, solves the problem of contradiction between the flame retardancy and mechanical properties of the original polyurethane hard foam thermal-insulation material, and is suitable for outer wall thermal-insulation construction with higher requirements for fire-protection rating.

Description

technical field [0001] The invention relates to a polyurethane flame-retardant thermal insulation material and a preparation method thereof. Background technique [0002] In recent years, with the continuous deepening of energy-saving work in residential construction in my country and the continuous improvement of energy-saving standards, many new energy-saving technologies and materials have been introduced and developed, and their use has been vigorously promoted in residential buildings. Among them, various foam plastic insulation materials used in external wall insulation, such as EPS boards, XPS boards and foamed polyurethane boards, have excellent comprehensive performance and are eye-catching. [0003] At present, the organic insulation materials used on a large scale in my country mainly include EPS (polystyrene foam), PS (extruded polystyrene foam) and PU (polyurethane foam), all of which are flammable organic insulation materials, and the biggest advantage is light...

AI Technical Summary

Problems solved by technology

[0004] In view of the main problems existing in the combination of polyurethane rigid foam insulation systems at home and abroad, combined with the current research progress of polyurethane rigid foam fire and flame retardant technology, polyurethane insulation materials have reached the national standard B1 or higher fire protection level, and the single addition of flame retardant technology The problem cannot be solved, and there is a problem that the fire-proof and flame-retardant performance of the polyurethane rigid foam insulation material is contradictory to the mechanical performance. At the same time, a systematic solution is proposed in combination with the addition of flame retardants and flame retardant curing agents