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Super thermal-insulation heat-preservation coating containing nanometer LaB6 powder and preparation method of coating

A thermal insulation and powder technology, applied in the direction of epoxy resin coating, coating, etc., can solve the problems of large interface thermal resistance, performance degradation of composite materials, poor compatibility, etc., achieve good light aging resistance, slow down the aging speed, increase The effect of transparency

Inactive Publication Date: 2015-05-20
WUHU BAOYI AMUSEMENT EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Overhydrophobic silica airgel microspheres are a good thermal insulation material, but due to the large number of non-polar groups on its surface, when it is mixed with a water-based polymer system, its compatibility is poor and the interface thermal resistance is large At the same time, the airgel microspheres are unevenly dispersed and easily agglomerated, resulting in a decrease in the performance of the composite material. Therefore, it is necessary to properly modify the hydrophobic silica airgel microspheres

Method used

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Embodiment Construction

[0016] A nano-LaB containing 6 Powdered super thermal insulation coating is made of the following raw materials in parts by weight (kg): 36 ethyl orthosilicate, appropriate amount of ethanol, appropriate amount of deionized water, 3.3 trimethylchlorosilane, dioctyl succinate sodium sulfonate 0.7, silane coupling agent kh-550 0.1, nano LaB 6 Powder 1.3, E-12 epoxy resin 73, ethylene glycol diglycidyl ether 10, triethanolamine 7.3;

[0017] The nano-LaB containing 6 The preparation method of the super thermal insulation coating of powder, comprises the following steps:

[0018] (1) Using tetraethyl orthosilicate as the silicon source, the silica gel is prepared by the sol-gel method, and subjected to atomization treatment to obtain silica gel microspheres with a particle size of 1-300 μm;

[0019] (2) Add silane coupling agent kh-550 into 120 parts by weight of deionized water, stir evenly, and then add nano-LaB 6 Powder, sonicated for 9 minutes, added silica gel microsphere...

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Abstract

The invention discloses a super thermal-insulation heat-preservation coating containing nanometer LaB6 powder. The coating is prepared from the following raw materials in parts by weight: 34-38 parts of ethyl orthosilicate, a proper amount of ethanol, a proper amount of deionized water, 3-3.5 parts of trimethylchlorosilane, 0.6-0.8 part of sodium di(2-ethyl-hexyl)sulfosuccinate, 0.08-0.12 part of a silane coupling agent kh-550, 1-1.5 parts of nanometer LaB6 powder, 70-75 parts of an E-12 epoxy resin, 9-12 parts of ethylene glycol diglycidyl ether and 7-7.5 parts of triethanolamine. The nanometer LaB6 powder is combined with silica aerogel, so that the aerogel has the function of filtering the ultraviolet and near-infrared rays, the transparency of the coating is improved, and the aging speed of the aerogel is retarded. The coating disclosed by the invention is good in thermal insulation performance and high in light aging resistance and can be used for places with strong illumination.

Description

technical field [0001] The invention relates to the field of thermal insulation coatings, in particular to a 6 Powdered super thermal insulation coating and preparation method thereof. Background technique [0002] Silica airgel has nanopores and is a porous solid material with low density, high porosity and super thermal insulation properties. The combination of silica airgel microspheres and film-forming materials for coatings forms a coating with super thermal insulation properties. [0003] Most of the current silica aerogels are prepared by hydrolysis of silicon sources such as tetraethyl orthosilicate by using the sol-gel method. The silica aerogels thus obtained are very easy to absorb moisture and crack when exposed to water, resulting in a nanoporous structure. If it is destroyed, it will affect the performance of airgel. Therefore, in the preparation process, it is usually necessary to carry out necessary hydrophobic modification on silica gel to enhance the hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12
CPCC09D163/00C08K3/36C08K3/38C08K9/04C08K9/06C08K9/10C08K2201/011C09D7/62C09D7/70
Inventor 张庆
Owner WUHU BAOYI AMUSEMENT EQUIP
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