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A dry powder reflective thermal insulation coating

A heat insulation and coating technology, applied in the direction of reflection/signal coating, cement coating, coating, etc., can solve the problems of reducing the thermal conductivity of heat insulation coatings, weak UV resistance of coatings, and decreased reflectivity, etc., to achieve a corresponding solution Capacitance and processing problems, suppression of efflorescence, and improvement of wear resistance

Active Publication Date: 2019-03-26
楚雄佑琳生科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned ceramic balls can only reduce the thermal conductivity of the thermal insulation coating to a limited extent, and its thermal conductivity is generally between 0.1 and 0.3 W / m.k, and the reflectivity of the thermal insulation coating is between 80 and 90%.
In general, reducing the thermal conductivity will result in a decrease in reflectivity
At the same time, the coating formed by reflective heat-insulating organic coatings has weak UV resistance, no wear resistance, no flame retardancy, and relatively short service life, which requires technical improvement

Method used

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  • A dry powder reflective thermal insulation coating
  • A dry powder reflective thermal insulation coating
  • A dry powder reflective thermal insulation coating

Examples

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preparation example Construction

[0033] H1: Polymer-modified graphene oxide, prepared by the following method:

[0034] (1) Synthesis of NTDA-terminated polypyrrolene prepolymer

[0035] In a 100 mL dry three-necked flask, add 10 mmol of 3,3'-diaminobenzidine DAB, 11 mmol of 1,4,5,8-naphthalene tetracarboxylic anhydride NTDA, 22 mmol of benzoic acid, 3 mL of isoquinoline and 40 mL of m -cresol, under nitrogen protection and magnetic stirring; after 2 hours, heat up to 85°C for 6h, 190°C for 21h, after the reaction, cool down to 70°C and quickly pour it into 150mL methanol to obtain a large amount of solid precipitation; wash the product repeatedly with methanol Finally, filter and collect the polymer, and dry it in a vacuum oven at 160°C for 20 hours for use;

[0036] (2) Synthesis of amino-terminated sulfonated polyimide prepolymer

[0037] In a 100mL dry three-neck flask, add 1.6mmol 2,2'-bis(4-sulfophenoxy)biphenyldiamine, 12.5mL m-creso1 and 0.8mL triethylamine successively, and protect with nitrogen ga...

Embodiment 1

[0059] In parts by weight, add 30 parts of A1, 8 parts of B1, 8 parts of C1, 7 parts of D1, 8 parts of E1, 3 parts of F1, 7 parts of G1, 25 parts of H1 and 5 parts of I1 into the mixer and mix well for 10 minutes , and the output is dry powder coating. According to the weight ratio, mix the powder and water according to the ratio of 1:0.5, and then apply it on the wall to complete the construction.

Embodiment 2

[0061] In parts by weight, add 30 parts of A1, 8 parts of B1, 8 parts of C1, 7 parts of D1, 8 parts of E1, 3 parts of F1, 7 parts of G1, 25 parts of H2 and 5 parts of I1 into the mixer and mix well for 10 minutes , and the output is dry powder coating. According to the weight ratio, mix the powder and water according to the ratio of 1:0.5, and then apply it on the wall to complete the construction.

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Abstract

The invention discloses a dry powder reflective thermal insulation coating, comprising the following components according to weight proportions: Portland cement, light calcium carbonate, calcined kaolin, silicon carbide, fly ash hollow float beads, sodium sulfide, polydimethylsiloxane, polymer modified graphene oxide and KH-560. The dry powder reflective thermal insulation coating has the advantages of low thermal conductivity, high reflectivity, high wear resistance, high flame retardance and high weathering resistance.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a dry powder reflective thermal insulation coating. Background technique [0002] Dry powder reflective thermal insulation coatings are widely used in various fields such as residences, construction plants, vehicles, ships, grain storage warehouses and petrochemical storage tanks. In the prior art, generally by adding sub-micron / micron ceramic ball fillers, To increase the thermal insulation capacity of thermal insulation coatings. However, the above-mentioned ceramic balls can only limitedly reduce the thermal conductivity of the thermal insulation coating, and the thermal conductivity is generally between 0.1-0.3 W / m.k, and the reflectivity of the thermal insulation coating is between 80-90%. Generally speaking, reducing the thermal conductivity will result in a decrease in reflectivity. At the same time, the coating formed by reflective heat-insulating organic coatings has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/08C09D5/33C09D7/62C09D7/63C09D7/65C08G81/00C08G73/10C09C1/46C09C3/10C09C3/12
CPCC08G73/1007C08G73/1067C08G81/00C09C1/46C09C3/10C09C3/12C09D1/08C09D5/004C09D7/62C09D7/63C09D7/65C09D7/70
Inventor 容七英
Owner 楚雄佑琳生科技有限公司
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