Building external wall thermal insulation material and preparation method thereof

Abstract

The invention discloses a building external wall thermal insulation material and a preparation method thereof, and the building external wall thermal insulation material comprises the following components by weight: 70-90 parts of Portland cement, 8-15 parts of nano calcium carbonate, 20-30 parts of aminopropyltriethoxysilane, 5-15 parts of water glass, 1-5 parts of carbon fiber, 5-7 parts of polyvinyl alcohol, 6-11 parts of expanded perlite, 4-8 parts of mastra veneriformis shell powder, 2-4 parts of stannous chloride, 6-10 parts of polypropylene, 10-15 parts of phenolic resin, 8-14 parts of silicone modified epoxy resin, 6-12 parts of polystyrene resin, 4-10 parts of volcano ash, 8-12 parts of butyl acetate, 3-9 parts of magnesium oxide, 2-4 parts of magnesium chloride, 3-8 parts of calcite powder, 6-10 parts of graphite, 2-6 parts of mordenite powder, 2-5 parts of mica powder, 1-6 parts of aluminite powder, 2-4 parts of talc powder, 2-5 parts of bauxite, 1-3 parts of vanadium carbide, 1-5 parts of molybdenum disulfide, 1-3 parts of a foam stabilizer, 1-2 parts of a foaming agent and 100-260 parts of water. The building external wall thermal insulation material can save the amount of cement, reduces the construction cost, and reduces the environmental damage, and the compressive strength and the fireproofing thermal insulation performance of the material are improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a thermal insulation material for building exterior walls and a preparation method thereof. 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. 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, high thermal conductivity, prone to stress cracking, and high cost. Con...

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.

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.