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Method for preparing heat insulation composite material by microwave

A composite material and microwave technology, applied in the direction of chemical instruments and methods, applications, household appliances, etc., can solve the problems of poor material uniformity, and achieve the effect of uniform macroscopic pores, fast speed, and good uniformity

Inactive Publication Date: 2008-05-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of poor uniformity of the prepared material in the current method for preparing heat-insulating composite materials, and provides a method for preparing heat-insulating composite materials using microwaves

Method used

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Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0013] Specific Embodiment 1: The method for preparing heat-insulating composite materials using microwaves in this embodiment is carried out as follows: 1. Take 1 to 150 parts of hydrophobic airgel particles, 10 to 80 parts of water-based adhesive, and dispersant according to the ratio of parts by volume. 1 to 5 parts and 10 to 80 parts of water, put the material into a high-speed shear mixer and stir at a speed of 500 to 1500r / min for 10 to 60 minutes; 2. Dry the mixed material at 20 to 80°C for 10 to After 60 minutes, the mixture is dried by microwaves with a frequency of 300-300000 MHz for 5-30 minutes, and finally mechanically processed to obtain a heat-insulating composite material.

specific Embodiment approach 2

[0014] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: in step 1, take 30-120 parts of hydrophobic airgel particles, 20-70 parts of water-based adhesive, and 2-4 parts of dispersant according to the ratio of parts by volume 20-60 parts with water. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0015] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 is: in step 1, take 60-90 parts of hydrophobic airgel particles, 40-50 parts of water-based adhesive, and 2.5-3.5 parts of dispersant according to the ratio of parts by volume 30-50 parts with water. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

The invention provides a method of producing heat insulation composite material by microwave, and relates to a preparation method of heat insulation composite material. The invention solves the problem of poor homogeneity of the material produced by the existing method of producing heat insulation composite material. The method of producing heat insulation composite material applied by the invention has the steps that: 1. stirring; 2. drying and microwave treatment, thus obtaining the heat insulation composite. The heat insulation composite material produced by the invention has good homogeneity.

Description

technical field [0001] The invention relates to a preparation method of a thermal insulation composite material. Background technique [0002] Patent No. CN1622852 published in China on June 1, 2005 "Heat-resistant airgel insulating composite material and its preparation method, airgel adhesive composition and its preparation method" and September 14, 2005 The patent published in China with the publication number CN1668372 "Aerogel and Hollow Particle Binder Composition, Insulation Composite and Its Preparation Method" passes through foaming agent, compressed air and other closed-cell materials during air condensation Macroscopic pores are introduced into composites composed of glue and water-based adhesives. Too many components in this kind of method not only increase the cost of the product, but also increase the complexity of the process. In addition, through the method of external heating, the product is easy to form a temperature gradient. The product uniformity is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/624C04B35/64C04B35/14C04B35/10C04B38/00C09K3/00
Inventor 葛邓腾赵九蓬李垚
Owner HARBIN INST OF TECH
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