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.