Thermal insulation putty for internal walls and application method thereof

Abstract

The invention discloses a thermal insulation putty for internal walls, which is characterized in that the raw material at least contains the following components: component 1: 1 part by mass of solution containing polyhydroxy high-molecular compounds on the basis of polyhydroxy high-molecular compounds; component 2: 0.1-1 part of isocyanate foaming crosslinking agent; component 3: 10-20 parts of thermal insulation filler; component 4: 0.5-2 parts of silica sol; and component 5: 0.1-2 parts of inorganic powder material. The total water content in the solution containing polyhydroxy high-molecular compounds and silica sol is 8-16 parts. The method comprises the following steps: uniformly mixing the components to form a paste; plastering the paste on the surface of the internal wall of a building by a plastering construction technique, wherein the plastering thickness is 3-20 millimeters; forming distributed bubbles in the plastering layer, and crosslinking and hardening the component 1 to form the thermal insulation putty layer. The thermal insulation putty for internal walls have low volume weight and low thermal conductivity; and the foamed high polymer material is used as an adhesive and has the phase-change energy storage effect, thereby enhancing the thermal insulation property of the putty.

Description

technical field [0001] The invention relates to a building material, in particular to a building putty, in particular to a heat-insulating putty used for building inner walls, which also has the function of heat preservation and heat insulation. Background technique [0002] The development of thermal insulation materials is based on the development of building energy conservation. In the ever-increasing total energy consumption, building energy consumption accounts for 11% to 25%. Developed countries began to pay attention to building energy conservation after the energy crisis in 1973, and successively formulated relevant building energy conservation standards and continuously revised and improved them. It has a long history, and the use of thermal insulation materials is the most important measure for building energy saving in foreign countries. my country's building energy conservation work started in the early 1990s, and there were relatively few thermal insulation mat...

AI Technical Summary

Problems solved by technology

[0004] At present, the building energy-saving measures used in China mainly use external wall fire insulation boards. The problems of this kind of boards are: 1. The bonding force between the fire insulation boards and the base is poor, and most of them are usually completed by rivets and bonding. , once aging forms stress concentration, it will lead to reduced adhesion, and even the possibility of falling off, which is more dangerous for the exterior walls of high-rise buildings, and it is easy to accidentally injure people passing by; 2. Relatively speaking, the production energy consumption is relatively large; 3. Generally speaking, it is not easy Construction, especially on higher floors; 4. The service life is relatively short

However, this product is also a cement-based material, combined with vitrified microbeads, its bonding strength is only 0.065MPa, which is far lower than the 0.25MPa specified in the JG / T298-2010 "Putty for Building Interiors" standard

Therefore, it is difficult for the product to be practically applied

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