Composite layered structure thermal insulation material high in thermal insulation efficiency

Abstract

The invention belongs to the technical field of composite materials, and particularly provides a composite layered structure thermal insulation material high in thermal insulation efficiency. The thermal insulation material is formed by arranging and combining heat high-reflectivity materials and low-thermal-conductivity materials alternately. The thermal insulation material is different from an existing thermal insulation material which achieves the thermal insulation effect on the basis of heat conduction limit. The composite layer structure thermal insulation material high in the thermal insulation efficiency is based on material layered combination, can limit heat conduction, and can also effectively limit heat convection and heat radiation, thereby obtaining the efficient thermal insulation effect. The thermal insulation material can be used for petroleum conveying pipelines, buildings, equipment and the like.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a thermal insulation material with a composite structure. Background technique [0002] Insulation materials generally refer to materials with thermal conductivity less than or equal to 0.2 W / (K m). It is an important factor affecting energy saving and emission reduction. After the 1970s, foreign countries attached great importance to the research and application of thermal insulation materials, striving to significantly reduce energy consumption, thereby reducing environmental pollution and the greenhouse effect. Statistics show that if a ton of mineral wool insulation material is used in a building, one ton of oil can be saved a year. Therefore, the study of thermal insulation technology and thermal insulation materials has important reference significance for building a resource-saving society. After more than 30 years of development of domestic ther...

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Problems solved by technology

However, the common disadvantages of organic insulation materials are: flammability, poor high temperature resistance and fire resistance, and release a large amount of toxic and harmful smoke at high temperature, etc.

In addition, after this type of organic material catches fire and burns, the flame temperature is high and the smoke is full, which increases the difficulty of rescue by firefighters and evacuation of on-site personnel.

However, when inorganic thermal insulation materials are used as external wall thermal insulation, there are various difficulties. For example, thermal insulation mortar cannot be applied to high-rise buildings, and the thermal insulation effect is not perfect. The new type of calcium silicate is an inorganic thermal insulation material. Its application in the engineering field, technical immature

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