Inorganic fireproof heat-insulating material and preparation method thereof

Abstract

The invention discloses an inorganic fireproof heat-insulating material, which comprises the following components by weight: 0.5-30 parts of reinforced fibers; 40-65 parts of lightweight aggregate; 2-15 parts of bentonite; 12-35 parts of an adhesive; 5-20 parts of an inorganic gel material; 2-10 parts of an interface agent; 0-10 parts of expanded polyphenyl particles; and 200-260 parts of water. Specifically, the expanded polyphenyl particles play a buffering role in a stirring process, so that the lightweight aggregate can avoid breakage. The interface agent can enhance the compatibility of various raw materials and has a foaming effect. The adhesive and the inorganic gel material retain the produced foam. The reinforced fibers endow the material with certain elasticity and good mechanical strength. The preparation method of the material provided in the invention is simple and convenient, and is easy to operate and to realize industrial production. The material disclosed in the invention has the characteristics of high temperature resistance, good heat insulation performance, and small unit weight, not only can be used as a heat insulation sheet material and a heat insulation slurry, and also can be used as a fireproof door core, a fireproof plugging material and other inorganic refractory materials.

Description

technical field [0001] The invention belongs to the technical field of fireproof heat preservation material and its preparation. In particular, it relates to a material and a preparation method simultaneously having the fireproof grade A and excellent thermal insulation properties. Background technique [0002] Building energy consumption is an important part of my country's energy consumption, accounting for about 30% of the total energy consumption of the whole society, of which heating and air conditioning energy consumption account for 20%. Therefore, the country attaches great importance to the development of building energy-saving materials. Organic insulation materials such as polystyrene foam (including XPS and EPS) and rigid polyurethane foam (PU) have the advantages of low thermal conductivity, light weight, good weather resistance, low cost and easy construction on the wall, and have been widely used in building insulation. application. Although the use of these...

AI Technical Summary

Problems solved by technology

Rock wool has the advantages of high thermal insulation and fire resistance. It is a class A-grade insulation board commonly used at present. However, this type of board also has disadvantages such as large production energy consumption, easy moisture absorption, difficult construction, and extremely low strength. During the process, there will be problems such as easy falling, easy falling off of the surface mortar and serious decline in thermal insulation performance.

Foamed cement has the advantages of low cost, easy production and processing, and its fire performance is Class A. It can be used as filling walls in building interiors. In recent years, it has also been used as thermal insulation materials. However, it is a brittle material, which is difficult to construct and has poor weather resistance.

Therefore, at present, there are some insurmountable disadvantages in the application of inorganic thermal insulation boards in building thermal insulation. It is urgent to develop a class A inorganic fireproof and thermal insulation material that can solve the above problems.

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