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

A composite nanomaterial and nanomaterial technology, applied in the field of flame-retardant heat-insulating composite nanomaterials, can solve the problems of difficult to degrade environmental pollutants, short service life, difficult to clean, etc., and achieve long-term storage, prevent heat radiation, heat The effect of stable reflective heat insulation and flame retardant performance

Inactive Publication Date: 2012-01-04
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation method of the flame-retardant heat-insulating composite material provided in this example, the specific steps are as follows:

[0036] a) Weigh the inorganic salt of magnesium (as magnesium hydroxide accounts for 10% of the mass of aluminum silicate salt), dissolve it in deionized water, and stir vigorously;

[0037] b) After the magnesium inorganic salt is completely dissolved, add the aluminosilicate powder in the mixed solution according to the mass ratio, and continue stirring for a period of time.

[0038] c) Slowly add ammonia water dropwise at a uniform speed to keep the pH of the solution system at 9, and react for a period of time after the dropwise addition is completed. Centrifuge, wash and dry to obtain the product.

Embodiment 2

[0040] The preparation method of this example is the same as that described in Example 1, except that in step a) the magnesium salt is weighed in a mass ratio of 20% to the aluminum silicate salt.

Embodiment 3

[0042] The preparation method of this example is the same as that described in Example 1, except that in step a) the magnesium salt is weighed in a mass ratio of 30% to the aluminum silicate salt.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/04C04B14/04E04B1/76E04B1/94E04D13/16E04F13/02
Inventor 余锡宾韩丽仙彭颖杰罗辉张坤罗宏德杜孟娟
Owner SHANGHAI NORMAL UNIVERSITY
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