Fireproof foaming compound insulation board and preparation method thereof

Abstract

The invention discloses a fireproof foaming compound insulation board and a preparation method thereof. The insulation board is made from the following raw materials: portland cement, special cement, coal ash, water-retaining agent, water repellent, retarder, fiber, water, polyphenyl granules and foaming agent. The preparation method comprises the following steps of pouring the portland cement, the special cement, the coal ash, the water-retaining agent, the water repellent, the retarder and the fiber into a mixer to be mixed evenly, and adding water to form a mixture; pouring the polyphenyl granules into the mixture, and mixing to obtain a paste; adding the foaming agent to form a foam paste; injecting the foam paste into a mould for moulding; cutting into boards after maintenance; laying a layer of glass fiber grid cloth on each upper and lower face of the boards, scraping and pressing a cement paste layer on the surface of each grid cloth, and maintaining to obtain the insulation board. By the preparation method disclosed by the invention, the size stability and anti-cracking performance of the insulation board can be obviously improved, and the insulation board has the characteristics of light weight, heat insulation, durability, fire resistance, environment protection and high cost performance.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a fireproof foaming composite thermal insulation board and a preparation method thereof. Background technique [0002] The promotion and application of building energy-saving wall insulation technology and products in my country started in the mid-1980s. After years of development, my country's building energy-saving external wall insulation market has developed into an industry with various types, diverse technical structures, and huge product demand. [0003] At present, the commonly used external wall insulation materials mainly include polystyrene board, polyurethane foam material, phenolic board, rock wool board, foamed cement board, etc. Currently commonly used external wall insulation materials generally have the following problems: [0004] 1. Polystyrene boards and polyurethane foam materials have poor durability and poor fire resistance. It is difficult to meet Class ...

AI Technical Summary

Problems solved by technology

[0004] 1. Polystyrene boards and polyurethane foam materials have poor durability and poor fire resistance. It is difficult to meet Class A fire protection requirements, and there are serious safety hazards. In recent years, many fires caused by building external insulation materials have been caused by polystyrene boards and polystyrene. The ammonia grease foaming material was caught on fire, causing serious casualties and property losses;

[0005] 2. Phenolic boards have disadvantages such as high rigidity, easy breakage, easy pulverization, low bonding strength, and poor dimensional stability;

[0006] 3. Rock wool, mineral wool, and glass wool have high water absorption, low tensile strength, poor wind pressure resistance, are not environmentally friendly, and have certain harm to the human body;

[0007] 4. The foamed cement board has poor dimensional stability and high brittleness. It is easily damaged during transportation and use, and it is not easy to be made into a large size. There are too many seams in the board during construction, and it is easy to crack and seep water