Flame-retarding thermal-insulation composite nano material and preparation method and use thereof

Abstract

The invention discloses a flame-retarding thermal-insulation inorganic composite nano material and a preparation method and use thereof. The flame-retarding thermal-insulation inorganic composite nano material is prepared by depositing magnesium hydroxide on aluminiumsilicate serving as a substrate. Compared with the prior art, the invention has the advantages that: the flame-retarding thermal-insulation inorganic composite material taking aluminiumsilicate as a substrate is prepared for the first time, the heat ray reflection rate of the flame-retarding thermal-insulation inorganic compositematerial is over 90 percent, so the composite material can effectively prevent heat radiation of the sun and other kinds of heat radiation; the composite material also can absorb ultraviolet rays andhas a function of resisting damage by ultraviolet rays and an excellent flame-retarding effect, and therefore is a multifunctional environment-friendly composite material; and flame-retarding and thermal-insulation coating is prepared for the first time, the heat ray reflection rate of the coating is over 90 percent, the difference between the thermal-insulation temperature of the coating and a blank substrate is more than 10 DEG C, and the coating has good flame-retarding performance. The flame-retarding thermal-insulation inorganic composite nano material product disclosed by the invention has the advantages of safety, no toxicity, stable chemical properties, easy long-term storage, stable heat-reflection, thermal-insulation and flame-retarding performance and the like.

Description

[0001] technical field [0002] The invention relates to a flame-retardant heat-insulating composite nanomaterial, specifically a composite nano-inorganic material capable of shielding solar heat radiation and other heat radiation, absorbing ultraviolet rays, and having heat-insulating and flame-retardant functions, a preparation method thereof and a flame-retardant material. Application of thermal insulation coatings. [0003] Background technique [0004] Energy saving and environmental protection are two major issues facing the world. Solar radiation energy is mainly concentrated in the band below 2.5μm, of which ultraviolet light (λ<0.35μm) accounts for 5%; visible light (λ = 0.35-0.76μm) accounts for 40%; near infrared (λ = 0.76-2.5μm) accounts for 50% %; heat energy in other bands accounts for 5%. These heat energy absorb and supply heat to the earth's environment through radiation, convection and conduction; and the earth's environment also needs to release heat...

AI Technical Summary

Problems solved by technology

Since these foam materials are refractory high molecular polymers, they themselves are polluting, which often cause pollution during construction and are not easy to clean up.

Moreover, due to the short service life, extensive use of this insulation system will inevitably produce a large number of difficult-to-degrade environmental pollutants in the future

Images