Interface adhesive for building exterior wall insulation board and preparation method thereof

Abstract

The invention discloses an interface bonding agent for a building outside wall insulation board and a preparation method thereof. The interface bonding agent comprises the following components: magnesium oxide and an ultramicro building material highly-efficient additive. The invention further discloses a method for preparing the interface bonding agent and an application method thereof. The interface bonding agent has excellent permeability and bonding performance, can firmly bond a fire-resistant and anti-aging material on the insulation board, and can also effectively improve the density and compressive strength of the insulation board, so that the service life of the insulation board is obviously prolonged, and the insulation performance, fire resistance and anti-aging performance of the insulation board are improved.

Description

technical field [0001] The invention relates to a binder for buildings, in particular to an interface binder for thermal insulation boards of external walls of buildings and a preparation method thereof, and belongs to the field of interface binders for thermal insulation boards. Background technique [0002] Polystyrene thermal insulation board is one of the most commonly used thermal insulation materials in the external thermal insulation of buildings. It is a high-quality thermal insulation and thermal insulation material commonly used in the construction industry. Low temperature storage ground, airport runway, highway and other moisture-proof insulation. However, polystyrene insulation boards have the following serious defects as insulation materials: [0003] 1. Flammable. This is the fatal disadvantage of polystyrene insulation boards, and it will be easily ignited when almost encountering an open flame. In recent years, many high-rise buildings in China have suffe...

AI Technical Summary

Problems solved by technology

This is the fatal shortcoming of polystyrene insulation board, it will be easily ignited almost when it encounters an open flame

In recent years, many high-rise buildings in China have frequent fire accidents caused by the large-scale use of polystyrene insulation boards, causing huge economic losses and serious personal casualties

[0004] 2. Release a large amount of deadly poisonous gas when burning

[0005] 3. Short life

The aging period of polystyrene board is very short, and it will degrade naturally within 10-20 years. Therefore, compared with the service life of the building itself, the effective service life of polystyrene board is seriously mismatched with that of the building exterior wall insulation material.

[0006] Aiming at the defects of flammability, aging and short service life of polystyrene insulation board as building exterior wall insulation, one of the improvement methods is to bond a layer of polystyrene insulation board with an interface adhesive Flame-retardant and aging-resistant materials, this method can effectively improve the flame retardancy and aging resistance of polystyrene insulation boards, but the existing interface adhesives generally have problems such as easy water absorption, poor cohesiveness, and poor aging resistance. Room for improvement