Lightweight flame-retardant constructional engineering external wall insulation material

Abstract

The invention discloses a lightweight flame-retardant constructional engineering external wall insulation material. The lightweight flame-retardant constructional engineering external wall insulationmaterial is prepared from, by weight, 10-20 parts of phenolic resin, 2-4 parts of organic silicon foam stabilizer, 20-30 parts of sepiolite, 5-9 parts of quartz sand, 2-6 parts of ash calcium powder,1-3 parts of polyvinyl alcohol, 10-20 parts of water, 10-20 parts of polyphenyl propylene, 8-10 parts of calcium stearate, 2-4 parts of aluminum silicate fibers, 3-5 parts of a flame retardant, 7-9 parts of an inorganic thickening agent, 3-5 parts of a light stabilizer, 6-8 parts of a film forming agent, 2-6 parts of a flame retardant, 5-9 parts of a dispersing agent, 3-5 parts of a coupling agentand 4-6 parts of a flexibilizer. The lightweight flame-retardant constructional engineering external wall insulation material is promising in market prospect, suitable for large-scale production andexcellent in heat insulation performance and accords with national policies in external wall insulation materials.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a lightweight flame-retardant thermal insulation material for building engineering exterior walls, and also relates to a preparation process for the lightweight flame-retardant thermal insulation material for building engineering exterior walls. Background technique [0002] With the implementation and development of building energy conservation, thermal insulation materials and products have been paid more and more attention by people. However, the currently used materials are not ideal in various properties, especially in terms of heat preservation, acid and alkali resistance, and weather resistance, which cannot meet people's needs. [0003] At present, the most commonly used external wall insulation material is polystyrene plastic foam board, and its main material is polystyrene resin. Because of its high transparency, good rigidity and good chemical co...

AI Technical Summary

Problems solved by technology

However, the materials currently used are not ideal in various properties, especially in terms of heat preservation, acid and alkali resistance, and weather resistance, which cannot meet people's needs.

[0003] At present, the most commonly used external wall insulation material is polystyrene plastic foam board, and its main material is polystyrene resin. Because of its high transparency, good rigidity and good chemical corrosion resistance, it has been favored by people. However, it has the defects of large specificity, large thermal conductivity, prone to stress cracking, and high cost.