Hard foam polyurethane phase-transition heat preservation composite board

Abstract

The invention relates to a hard foam polyurethane phase-transition heat preservation composite board. The hard foam polyurethane phase-transition heat preservation composite board comprises a hard foam polyurethane heat preservation layer and a phase-transition composite layer, wherein the hard foam polyurethane heat preservation layer served as a core material is coated by the phase-transition composite layer; and the phase-transition composite layer comprises a phase-transition composite sheet precast in a production line and phase-transition mortar used for spraying and scraping. The hard foam polyurethane phase-transition heat preservation composite board ingeniously combines thermal-insulation heat preservation with phase-transition heat preservation, has higher system thermal resistance compared with the conventional hard foam polyurethane heat preservation systems and phase-transition heat preservation systems, and recycles energy resources; the fireproof performance of the system reaches composite grade A in GB8624-97 of method for grading combustion performance of building materials; and the hard foam polyurethane phase-transition heat preservation composite board is an ideal product which saves 75 percent of energy of buildings and is used for constructing green buildings.

Description

technical field [0001] The invention relates to the field of building energy-saving materials, in particular to a rigid foam polyurethane phase-change thermal insulation composite board. Background technique [0002] With the development of urbanization and the continuous improvement of people's quality of life, people's requirements for indoor environment comfort are getting higher and higher, and the energy consumption of air conditioners has also increased significantly. According to statistics, the proportion of building energy consumption in my country has already Reaching 35% of the energy consumption of the whole society, the huge energy consumption of buildings will become an important reason restricting the sustainable development of economy and society. An important way for the sustainable development of society. [0003] At present, there are no more than two ways for building thermal insulation to realize building energy conservation. Materials with low thermal c...

AI Technical Summary

Problems solved by technology

[0003] At present, there are no more than two ways for building thermal insulation to realize building energy conservation. Materials with low thermal conductivity such as glass wool and glass wool can effectively block heat conduction, ignoring the recycling of energy, and due to the inertness of heat transfer, a large amount of heat energy is enriched on the surface of the heat insulating material, so that the heat insulating material is generated under the action of the thermal gradient. Deformation, decomposition; Phase change thermal insulation The products popularized and used at this stage are mainly phase change thermal insulation mortars. This type of material has obvious thermal bridge effect, and the ability to absorb and release heat energy is weak when the temperature difference is small, so it cannot Fully recycle heat energy, resulting in energy loss and waste

Images