Composite building waterproof and heat-preserving material and preparation method thereof

Abstract

The invention discloses a composite building waterproof and heat-preserving material and a preparation method thereof. The composite building waterproof and heat-preserving material is composed of anupper waterproof layer, a lower waterproof layer and a middle nanometer ceramic mycelium heat insulation layer, wherein each waterproof layer is composed of the following substances in parts by weight: 50-60 parts of expanded perlite, 20-30 parts of methyl sodium silicate and 10-20 parts of polyvinyl alcohol; the nanometer ceramic mycelium heat insulation layer is composed of the following substances in parts by weight: 5-8 parts of mycelia, 30-50 parts of limestone, 15-25 parts of nanometer ceramic particles and 50-80 parts of straw. According to the invention, the nanometer ceramic myceliumheat insulation layer is formed by coating the limestone and the nanometer ceramic particles with the mycelia to form a structure similar to a shell structure; meanwhile, the nanometer ceramic particles have the characteristics of improving the strength, hardness, high-temperature resistance, hydrophobicity and the like of a material, and can significantly improve the heat-preserving and waterproof performances of the composite building waterproof and heat-preserving material. The composite building waterproof and heat-preserving material provided by the invention has the characteristics of heat preservation, heat insulation, sound insulation, light weight, water resistance, energy conservation, environmental protection and high strength.

Description

technical field [0001] The invention relates to the technical field of building material production, in particular to a composite building waterproof and thermal insulation material and a preparation method thereof. [0002] technical background [0003] With the continuous improvement of people's quality of life, waterproof and thermal insulation materials for buildings are playing an increasingly important role in the construction field, such as roof leaks, indoor kitchen leaks, leakage of external wall plaster cracks, and wall condensation caused by moisture Problems such as long hairs have seriously plagued people's normal life and production activities. The occurrence of leakage will also directly endanger the internal structure of buildings and affect their life. At the same time, thermal insulation materials are developing rapidly, especially in industry and construction. The use of good thermal insulation technology and materials can often achieve twice the result wit...

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Problems solved by technology

[0003] With the continuous improvement of people's quality of life, waterproof and thermal insulation materials for buildings are playing an increasingly important role in the construction field, such as roof leaks, indoor kitchen leaks, leakage of external wall plaster cracks, and wall condensation caused by moisture Problems such as long hairs have seriously plagued people's normal life and production activities. The occurrence of leakage will also directly endanger the internal structure of buildings and affect their life. At the same time, thermal insulation materials are developing rapidly, especially in industry and construction. The use of good thermal insulation technology and materials can often achieve twice the result with half the effort. Although the existing thermal insulation materials in the industry can achieve the purpose of waterproof and thermal insulation to a certain extent, there are still many problems in terms of fire resistance and strength. The problems of poor performance and insufficient strength often plague the technicians in this industry. If the fire resistance and strength are improved, the waterproof and heat preservation often cannot meet the requirements

[0004] The current building materials have poor waterproof performance. During the long-term rain and wet process of the building exterior walls, water seepage of building materials occurs. At the same time, the thermal insulation effect is poor, and it is impossible to isolate the external temperature for a long time. While the building material components are improved to enhance the waterproof and thermal insulation performance, the manufacturing method of the building materials is also improved, which cannot achieve the purpose of making the building materials well insulated by mixing expansion gas in the building materials, and cannot guarantee It can normally use waterproof and thermal insulation building materials for a long time, which brings great inconvenience to people's use of waterproof and thermal insulation building materials

[0005] In patent CN103171823B, it is reported that mycelium and rice husk charcoal are insulation materials for fillers, but the mechanical strength of this material is relatively poor

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