Thermal insulation material with vacuum-like structure and preparation method thereof

A thermal insulation material and vacuum technology, applied in the field of thermal insulation materials, can solve the problems of difficulty in obtaining a vacuum structure and difficulty in maintaining a stable vacuum state for a long time, and achieve the effects of low thermal conductivity, high-efficiency thermal insulation and sound insulation materials, and high acoustic resistance.

Inactive Publication Date: 2020-09-08
天津天工佳品科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very difficult to obtain a vacuum structure, especially to maintain a stable vacuum state for a long time

Method used

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  • Thermal insulation material with vacuum-like structure and preparation method thereof

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preparation example Construction

[0017] Now refer to figure 1 , which shows a method for preparing an insulating material with a vacuum-like structure according to an embodiment of the present invention. As shown in the figure, the method includes the following steps:

[0018] Step 1, mixing hollow microspheres of inorganic materials with organic expanded microspheres in a mass ratio of (1~25):(0.01~5) to form a mixture; and

[0019] Step 2, adding a binding agent into the mixture.

[0020] In some embodiments, the hollow microspheres of inorganic materials are vitrified hollow microspheres or ceramic hollow microspheres, and the expanded organic microspheres are expanded hollow microspheres of organic polymers.

[0021] In some embodiments, the organic expanded microspheres are hollow shell spherical powder materials made of acrylic polymers, epoxy polymers, melamine or polyimide polymer materials by physical or chemical methods, For example, organic high molecular polymer expanded hollow microspheres suc...

Embodiment 1

[0046] Embodiment one, thermal insulation coating

[0047] 1. Use vitrified hollow microspheres or ceramic hollow microspheres (A) and organic expanded microspheres (B) to mix in a mixer, the mixing mass ratio is: A:B = (1~25):(0.01~5 ), thus forming C. Specifically, the mixing mass ratio may be, for example, A:B=5:2, or 11:2.

[0048] 2. Add a binder emulsion with a mass fraction ratio of 1:1 to C; the thermal insulation coating can be obtained by stirring and aging. The emulsion can be, for example, a polymer copolymer emulsion such as an acrylate copolymer emulsion or a polyurethane copolymer emulsion.

Embodiment 2

[0049] Embodiment 2. Thermal insulation (sound insulation) inorganic board

[0050] 1. Use vitrified hollow microspheres or ceramic hollow microspheres (A) and organic expanded microspheres (B) to mix in a mixer, the mixing mass ratio is: A:B = (1~25):(0.01~5 ), thus forming C. Specifically, the mixing mass ratio may be, for example, A:B=5:2, or 11:2.

[0051] 2. Mix C and calcium silicate powder (D) according to the ratio of mass ratio C:D=3:1, then add 20% left and right deionized water (you can also add appropriate amount of fiber), stir well and then age After 40 minutes, a paste (E) with a viscosity of more than 20000 mPa·s was obtained. The 20% deionized water refers to the ratio of deionized water to C+D+deionized water. The appropriate amount of fiber may be, for example, 1-5% fiber.

[0052] 3. Fill the mold with E, heat-press it with a hot press at a temperature of 110-180°C and a pressure of 30 MPa, and then dry it in a drying tunnel kiln to make a thermal insul...

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Abstract

The invention discloses a preparation method of a thermal insulation material with a vacuum-like structure, which comprises the following steps: mixing hollow microspheres of an inorganic material with organic expanded microspheres in a mass ratio of (1-25): (0.01-5) to form a mixture, and adding a binding agent to the mixture. The invention further discloses the thermal insulation material with the vacuum-like structure, and the thermal insulation material is prepared by the preparation method of any embodiment of the invention.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a thermal insulation material with a vacuum-like structure and a preparation method thereof. Background technique [0002] Existing thermal insulation materials are generally divided into three types as follows: 1. Fiber materials, such as rock wool, glass fiber, aluminum silicate fiber, etc.; 2. Porous materials, such as organic foam materials, sepiolite, perlite, bismuth Silica airgel, etc.; 3. Vacuum insulation materials. [0003] Most of the first two materials use the air between the fibers or the air between the pores for heat insulation, so the thermal conductivity of these materials will not be lower than that of air (0.023w / m·K). The vacuum material can obtain extremely low thermal conductivity due to the vacuum structure. However, it is very difficult to obtain a vacuum structure, especially to maintain a stable vacuum state for a long time. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B28/14C04B38/08C04B28/00C04B26/00C09D133/04C09D175/04C09D7/61C09D7/65C08L63/00C08L75/04C08L27/18C08L79/08C08L61/28C08L101/00C08K7/24C08K7/26C08J9/32C04B111/52
CPCC04B26/00C04B28/00C04B28/02C04B28/14C04B2111/52C08J9/0061C08J9/0066C08J9/32C08J2203/22C08J2327/18C08J2361/28C08J2363/00C08J2375/04C08J2379/08C08J2400/00C08K7/24C08K7/26C09D133/04C09D175/04C09D7/61C09D7/65C09D7/70C04B14/24C04B16/082C04B20/0048C04B20/004C08L101/00
Inventor 徐立春
Owner 天津天工佳品科技发展有限公司
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