Silica aerogel microsphere composite thermal insulation coating

A technology of silica and thermal insulation coatings, applied in the direction of epoxy resin coatings, coatings, etc., can solve the problems of reducing the internal gas phase heat conduction and convective heat transfer of airgel, and the decrease of thermal conductivity of silica airgel, etc. Achieve the effect of improved heat insulation performance, low density and good weather resistance
CN103333542AInactive Publication Date: 2013-10-02HENAN UNIVERSITY OF TECHNOLOGY
2 Cites 69 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HENAN UNIVERSITY OF TECHNOLOGY
Publication Date
2013-10-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a novel composite thermal insulation coating using silica aerogel microsphere as a thermal insulation filler. The main preparation process is as follows: mixing self-made silica aerogel microspheres with a polymer emulsion to obtain a silica aerogel composite thermal insulation coating with excellent heat insulation property. Compared with the existing coating in the market, the silica aerogel composite thermal insulation coating has greatly improved the thermal insulation property. The invention employs an atomization method to prepare the silica aerogel microspheres of micron size level, which have high filling rate of up to 70% in the coating. During the atomization process, the size of the silica aerogel microspheres is regulated by controlling the size of a nozzle. The invention also provides a method for preparing thermal insulation coating from silica aerogel microspheres with mixed grain size. Mixture of silica aerogel microspheres with different particle sizes is helpful to improving packing density of the silica aerogel microspheres in the coating, so as to reduce thermal conductivity of the coating to the minimum.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a novel heat-insulating coating which uses silicon dioxide airgel as a functional filler. Silica airgel is a new type of thermal insulation material with unique nanopores and three-dimensional network structure. This material has extremely low thermal conductivity and excellent thermal insulation effect. The use of silica airgel as a thermal insulation filler is a bold attempt in the field of thermal insulation. It can significantly improve the thermal insulation performance of existing thermal insulation coatings and improve energy efficiency. Silica airgel composite thermal insulation coating not only has good thermal insulation, but also is lightweight, environmentally friendly and pollution-free, and has great potential application value in many fields including construction, military, aerospace and so on. Background technique

[0002] With the development of our society, a large number of buildings have emerged in various...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More