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Thermal insulation rheological material and preparation method thereof

A technology of thermal insulation and airgel, which is applied in the field of composite materials, can solve the problems of good flame retardancy and poor strength, and achieve the effects of high tensile and compressive strength, wide application and broad market

Inactive Publication Date: 2018-11-06
优澎(嘉兴)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention proposes a thermal insulation rheological material, which can overcome the shrinkage, collapse, powder loss, and poor strength of the rheological material during the drying process. At the same time, the material does not contain organic components and is flame retardant. Good performance, with multiple functions such as thermal insulation, leveling the wall, strengthening the adhesion of outer coatings, etc.

Method used

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preparation example Construction

[0047] The preparation method of the thermal insulation rheological material according to the embodiment of the present invention comprises the following steps:

[0048] Step S1, uniformly mixing 40-180 parts by weight of latex, 0-20 parts by weight of flame retardant and 90-150 parts by weight of water to obtain a premix.

[0049] Wherein, the latex contains one or more of pure acrylic emulsion, silicone acrylic emulsion, styrene acrylic emulsion, chlorine partial emulsion and silicone emulsion.

[0050] The specific components in step 1 and the functions of each component have been described in detail above, and will not be repeated here.

[0051] Step 2, adding 5-80 parts by weight of airgel powder and 40-240 parts by weight of reinforcement to the premix and stirring evenly to obtain the thermal insulation rheological material.

[0052] Wherein, the reinforcing body contains one or more mixtures of hollow glass microspheres, vitrified microspheres, expanded perlite and ka...

Embodiment 1

[0058] 1) Preparation of premix

[0059] In parts by weight, 150 parts by weight of pure acrylic emulsion, styrene-acrylic emulsion and chlorine partial emulsion, wherein, pure acrylic emulsion: styrene-acrylic emulsion: chlorine partial emulsion mass ratio is 3:6:1, magnesium hydroxide flame retardant ( The tap density is 2360kg / m3, and 10 parts by mass of Shandong Yinrui Flame Retardant Material Co., Ltd.) and 90 parts by weight of water are uniformly mixed to obtain a premix.

[0060] 2) Preparation of thermal insulation rheological material

[0061] Add silica airgel powder (Shanghai Yiyuan Industrial Co., Ltd., density 95kg / m3, thermal conductivity 0.019W / (m K) in the above-mentioned premixture, porosity 98%, specific surface area 800m2 / g, Aperture 20nm) 28 parts by weight, hollow glass microspheres (Dongguan Huixin Industry and Trade Co., Ltd., tap density is 250kg / m3, average particle diameter is 45um,) 80 parts by weight and expanded perlite (Xinyang City Dongheng per...

Embodiment 2

[0064] 1) Preparation of premix

[0065] In parts by weight, 40 parts by weight of pure acrylic emulsion and styrene-acrylic emulsion, wherein, pure acrylic emulsion: styrene-acrylic emulsion mass ratio is 4:6, flame retardant (pentaerythritol: ammonium polyphosphate: melamine mass ratio is 3:5 : 2, Shandong Yinrui Flame Retardant Material Co., Ltd.) 10 parts by weight and 150 parts by weight of water were uniformly mixed to obtain a premix.

[0066] 2) Preparation of thermal insulation rheological material

[0067] Add carbon airgel powder (density 68kg / m in above-mentioned premixture, thermal conductivity 0.023W / (m K), Hebei Jinna Technology Co., Ltd.) 20 parts by weight, hollow glass microspheres (tap density in 200kg / m3, the average particle size is 50um, Shanxi Hainuo Technology Co., Ltd.) 80 parts by weight and kaolin (tap density is 2500kg / m3, the average particle size is 10um, Longyan Kaolin Co., Ltd.) 80 parts by weight mix, and in In the mixer, stir at low speed fi...

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Abstract

The invention provides a thermal insulation rheological material and a preparation method thereof. The thermal insulation rheological material comprises, by weight, 5 to 80 parts of aerogel powder, 40to 240 parts of a reinforcement material containing kaolin, 40 to 180 parts of a latex liquid, 0 to 20 parts of a flame retardant and 90 to 150 parts of water. The thermal insulation rheological material has good thermal insulation effects and a thermal insulation rate of 0.06 W / m.K or less. The dried thermal insulation rheological material has high tensile and compressive strength and prevents dusting. A polymer network formed from the dried emulsion is located on the surface of the porous material, produces bonding effects and support skeleton effects and improves strength.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a thermal insulation rheological material and a preparation method thereof. Background technique [0002] Thermal insulation material is a material that can block the transfer of heat flow, also known as thermal insulation material. Traditional thermal insulation materials, such as glass fiber, asbestos, rock wool, silicate, etc., new thermal insulation materials, such as airgel felt, vacuum panels, etc. Heat insulation materials are divided into three categories: porous materials, heat reflective materials and vacuum materials. Among them, the porous material is a kind of material with a network structure composed of interpenetrating or closed pores, which has the characteristics of small bulk density, large specific surface area, high specific mechanical properties, and good damping performance. [0003] Airgel materials belong to the porous thermal insulation mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/06C04B26/32C04B26/08C04B38/08C04B111/28
CPCC04B26/06C04B26/08C04B26/32C04B38/085C04B2111/28C04B2201/32C04B14/064C04B14/22C04B14/185C04B22/002C04B24/02C04B24/125C04B22/16C04B14/028C04B14/106C04B24/2641C04B24/2682C04B14/302
Inventor 向军辉李华鑫古广予关运龙
Owner 优澎(嘉兴)新材料科技有限公司
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