Novel modified graphite outer wall heat-preservation material and preparation method thereof

Abstract

The invention provides a novel modified graphite outer wall heat-preservation material and a preparation method thereof. The heat-preservation material is prepared from modified graphite as a base material as well as aerogel, sodium silicate, graphite polystyrene, metal components, anion packing, yttrium aluminum garnet powder, a continuous carbon fiber, aluminum silicate fiber cotton, an interface modifier, an accelerant, a water increase agent and an aluminum-magnesium mixture through procedures such as heating, molding and ultraviolet treatment. The modified graphite is an inorganic material, is not liable to be ignited and can release harmful gases in the combustion process, meanwhile, due to adoption of the continuous carbon fiber and the aluminum silicate fiber cotton, the heat preservation properties of the heat-preservation material can be improved, the heat conduction coefficient can be reduced, energy-saving requirements of buildings in China can be met, and in addition, conventional building energy conservation design standard requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials, and in particular relates to a novel modified graphite external wall thermal insulation material and a preparation method thereof. Background technique [0002] With the rapid development of industry, building energy consumption is particularly large, accounting for about 11-25% of total energy consumption. The current effective method is to use thermal insulation and energy-saving materials. [0003] Organic insulation materials such as polyurethane rigid foam board, polystyrene foam board or phenolic foam board have been widely used in building insulation projects because of their excellent thermal insulation performance. However, the fatal weakness of polyurethane foam is poor combustion performance, easy to be ignited, and harmful gases will be released during the combustion process; while inorganic insulation materials such as foamed cement insulation board, expanded per...

AI Technical Summary

Problems solved by technology

However, the fatal weakness of polyurethane foam is poor combustion performance, easy to be ignited, and harmful gases will be released during the combustion process; while inorganic insulation materials such as foamed cement insulation board, expanded perlite insulation board or inorganic material wrapped polystyrene particle insulation board, although It can meet the requirements of Class A non-combustible material standards for combustion performance classification, and has also been widely used in the construction field. However, because its thermal insulation performance is lower than that of organic thermal insulation materials, its thermal conductivity is 1.5-2 times that of organic thermal insulation materials. The larger the coefficient, the worse the insulation performance

And its high density, self-heavy

With the gradual improvement of my country's building energy-saving requirements, it often cannot meet the requirements of the current building energy-saving design standards.