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High-temperature aerogel thermal insulation coating as well as preparation equipment and use method of high-temperature aerogel thermal insulation coating

A thermal insulation coating, high temperature gas technology, applied in chemical instruments and methods, alkali metal silicate coatings, coatings, etc., can solve the problems of inability to pre-process steps, low production efficiency and effect, low coating strength and toughness, etc. Achieve the effect of improving production efficiency and effect, improving mixing efficiency and effect, and large stirring range

Active Publication Date: 2022-05-13
中建材科创新技术研究院(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of high-temperature airgel thermal insulation coating, preparation equipment and its use method, in order to solve the certain limitations of coating preparation equipment in the prior art The technical problems of low overall production efficiency and effect, and low strength and toughness of the paint

Method used

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  • High-temperature aerogel thermal insulation coating as well as preparation equipment and use method of high-temperature aerogel thermal insulation coating
  • High-temperature aerogel thermal insulation coating as well as preparation equipment and use method of high-temperature aerogel thermal insulation coating
  • High-temperature aerogel thermal insulation coating as well as preparation equipment and use method of high-temperature aerogel thermal insulation coating

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment discloses a high-temperature airgel thermal insulation coating, which includes water glass, aqueous solution, functional materials, silane coupling agent, dimethyl silicone oil, film-forming agent, curing aid and film-forming aid.

[0046] Further, the functional material is one or more of silicon whiskers, ceramic whiskers, talc powder, and mica powder.

[0047] Further, the film-forming agent is one or more of sodium silicate, potassium silicate, styrene-acrylic emulsion, lithium silicate, acrylic emulsion, polyurethane emulsion, and the curing aid is magnesium oxide, aluminum oxide, fluorosilicon A kind of sodium acid;

[0048] Further, the film-forming aid is one or more of benzyl alcohol, ethylene glycol butyl ether, and propylene glycol phenyl ether alcohol ester-12.

[0049] After testing, the above-mentioned high-temperature airgel thermal insulation coating has a thermal conductivity of 0.038w / m K, a wet density of 600-700kg / m3, a dry density o...

Embodiment 2

[0051] see Figure 1 to Figure 12 As shown, this embodiment discloses a preparation equipment for high-temperature airgel thermal insulation coatings, including an upper outer box 1, an agitation mechanism 2, an initial mixing mechanism 3, a middle box 4, a reaction tank 5, a crushing mechanism 6 and a secondary mixing mechanism 7. The middle box 4 is installed on the bottom of the upper outer box 1, the reaction tank 5 is fixed on the bottom of the middle box 4, and the outer wall of the reaction tank 5 is provided with a support leg frame 8, and the stirring mechanism 2 is installed on Inside the upper outer box 1 and directly above the primary mixing mechanism 3, the primary mixing mechanism 3 is installed in the middle layer box 4 and one end of the primary mixing mechanism 3 is in transmission connection with the pulverizing mechanism 6, and the pulverizing mechanism 6 is installed in the reaction tank 5, the two mixing mechanisms 7 are installed in the reaction tank 5 an...

Embodiment 3

[0060] This embodiment discloses a method for using the preparation equipment of high-temperature airgel thermal insulation coating, and the specific steps are as follows:

[0061] (1) by dropping the airgel paint raw material from the storage chamber 9 to the material receiving tank 31, wherein the dispersing motor 12 drives the dispersing shaft 10 connected to its output end and the dispersing blade 11 on the dispersing shaft 10 to rotate, Disperse the raw material of airgel coating to improve its subsequent mixing efficiency and effect;

[0062] (2) After the airgel paint raw material falls in the material receiving tank 31, feed raw materials and water that do not need pretreatment in the material receiving tank 31 through the feed pipe 13, and the drive motor 21 drives a motor that is connected to its output end. The interlocking assembly 24 works to initially mix the raw materials in the material receiving tank 31 to form silica airgel. Under the mutual transmission of t...

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Abstract

The invention discloses a high-temperature aerogel thermal insulation coating, preparation equipment and a use method thereof, and belongs to the technical field of thermal insulation coatings, the thermal insulation coating comprises water glass, an aqueous solution, a functional material, a silane coupling agent, dimethyl silicone oil, a film-forming agent, a curing aid and a film-forming aid. The preparation equipment comprises an upper outer box, a stirring mechanism, a primary mixing mechanism, a middle-layer box, a reaction tank, a crushing mechanism and a secondary mixing mechanism, a supporting leg frame is arranged on the outer side wall of the reaction tank, a material storage cavity is formed in the upper outer box, a dispersing shaft is arranged at the inner bottom of the material storage cavity, dispersing blades are installed on the dispersing shaft, a dispersing motor is arranged on the outer side wall of the upper outer box, and a stirring mechanism is arranged on the stirring mechanism. A material guiding pipe is arranged on the outer side wall of the upper outer box, a discharging mechanism is arranged at the bottom of the reaction tank, and an exhaust port and a feeding port are formed in the outer side wall of the reaction tank. All the components of the coating raw materials can be pretreated before production and mixing, the overall production efficiency and effect are improved, the strength and toughness of the coating are high, and practicability is high.

Description

technical field [0001] The invention relates to the technical field of thermal insulation coatings, in particular to a high-temperature airgel thermal insulation coating, preparation equipment and a use method thereof. Background technique [0002] Airgel is a new lightweight nanoporous amorphous solid material with the characteristics of controllable nanostructure, adjustable refractive index, and large specific surface area. It is currently the solid with the smallest refractive index, thermal conductivity and extremely low sound propagation velocity. Material. Silica airgel has an annihilation ratio of more than 100 for infrared and visible light, which can effectively transmit sunlight and prevent infrared heat radiation at ambient temperature. It is an ideal transparent heat insulation material. The coating is coated on the outside of the object. The surface, which is closely connected with the object to be coated, is often used in high temperature industrial kilns. A...

Claims

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Application Information

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IPC IPC(8): C09D1/04C09D7/61C09D7/63C09D7/65B01F33/83B01F33/80
CPCC09D1/04C09D7/61C09D7/63C09D7/65C09D7/20C09D7/70C09D191/00C09D7/80B01F31/44B01F29/80B01F33/821B01F33/831B01F33/83612B01F27/906B01F27/191B01F27/0724B01F27/0722B01F2035/99B01F35/33B01F35/3204B01F35/323
Inventor 张忠伦王明铭
Owner 中建材科创新技术研究院(山东)有限公司
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