Insulating coil coating and preparation method thereof

A technology of coil coating and solar heat, applied in polyester coating, reflective/signal coating, coating, etc., to achieve cost saving, heat insulation and energy saving effect, and improve economic and social benefits

Inactive Publication Date: 2010-12-08
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the application of potassium titanate whiskers in coil coatings to prepare heat-insulating coil coatings at home and abroad. The present invention uses a surface chemical modification method to modify the surface of potassium titanate whiskers to improve the crystallinity of potassium titanate. The dispersion of whiskers in coil coatings can improve the thermal insulation performance of coil coatings, and it is expected to obtain high-efficiency thermal insulation coil coatings when combined with high reflectivity pigments

Method used

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  • Insulating coil coating and preparation method thereof

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Effect test

Embodiment 1

[0057] Modification of potassium titanate whiskers: In terms of mass fraction, add 60 parts of 95% ethanol to the reaction vessel, adjust the pH value of 95% ethanol to 3.0 with glacial acetic acid, and then add 2 parts of silane coupling agent KH560 to acidify In an aqueous ethanol solution, mechanically stir at 300 rpm for 15 minutes. Then 30 parts of potassium tetratitanate whiskers were added to the above solution, mechanically stirred at 300 rpm for 2 hours, then filtered and dried to obtain functional potassium titanate whiskers, and the filtrate could be reused.

[0058] Preparation of Insulation Coil Coatings:

[0059] Step 1: Adjust the rotating speed of the adjustable frequency conversion speed regulating dispersing machine to 500 rpm and then turn on the switch. At a low shear speed, add the mixed solvent (cyclohexanone: S-100 : Propylene glycol ethyl ether: DBE: Ethylene glycol ethyl ether acetate = 3.5: 3.5: 1: 1: 1), saturated polyester resin (Degussa L411), ami...

Embodiment 2

[0075] Modification of potassium titanate whiskers: In terms of mass fraction, add 80 parts of 97% ethanol to the reaction vessel, adjust the pH value of 97% ethanol to 1.0 with sulfuric acid, and then add 2 parts of silane coupling agent KH570 to the acidified In 97% ethanol, mechanically stir at 300 rpm for 15 minutes. Then 50 parts of potassium hexatitanate whiskers were added to the above solution, mechanically stirred at 300 r / min for 1 hour, then filtered and dried to obtain functional potassium titanate whiskers, and the filtrate could be reused.

[0076] Preparation of Insulation Coil Coatings:

[0077] Step 1: Adjust the rotating speed of the adjustable frequency conversion speed regulating dispersing machine to 600 rpm and then turn on the switch. At a low shear speed, add the mixed solvent (cyclohexanone: S-100 : Propylene Glycol Ether: DBE: Ethylene Glycol Ether Acetate = 3.5: 3.5: 1: 1: 1), saturated polyester resin (Degussa LH820-50), amino resin and solar heat ...

Embodiment 3

[0093] Modification of potassium titanate whiskers: In terms of mass fraction, add 90 parts of 99% ethanol to the reaction vessel, adjust the pH value of 99% ethanol to 2.0 with hydrochloric acid, and then add 2 parts of silane coupling agent to the acidified ethanol , mechanically stirred at 300 rpm for 15 minutes. Then 25 parts of potassium octatitanate whiskers were added to the above solution, mechanically stirred at 300 rpm for 2 hours, then filtered and dried to obtain functional potassium titanate whiskers, and the filtrate could be reused.

[0094] Preparation of Insulation Coil Coatings:

[0095] Step 1: Adjust the rotating speed of the adjustable frequency conversion speed regulating dispersing machine to 500 rpm and then turn on the switch. At a low shear speed, add the mixed solvent (cyclohexanone: S-100 : propylene glycol ethyl ether: DBE: ethylene glycol ethyl ether acetate = 3.5: 3.5: 1: 1: 1), saturated polyester resin (BASF Desmophen T 1665), amino resin and ...

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Abstract

The invention relates to an insulating coil coating and a preparation method thereof, in particular to the building insulating coil coating which is applicable to precoating a metal coiled material production line and has high solar thermal reflectivity and better weathering resistance. The insulating coil coating is composed of saturated polyester resin, amino resin, a dispersant, solar heat reflection composite pigment, a functional potassium titanate whisker, a filling material, a solvent and other additives, wherein the additives comprise an adhesion promoter, a levelling agent, a defoaming agent and a catalyst. The efficient insulating coil coating of the invention has the advantages of efficient heat insulation, ultrathin coating, corrosion resistance, weatherability and the like.

Description

technical field [0001] The invention designs a coating and a manufacturing method thereof, in particular a heat-insulating coil coating and a manufacturing method thereof. Background technique [0002] Pre-coated metal coils are widely used in the construction field due to their changeable colors, light weight, easy processing and excellent mechanical properties. However, the pre-coated metal coils currently on the market do not have the function of heat insulation. If such coils are used for roof covering, the indoor temperature will rise to 40-50°C in hot summer. A large amount of energy is consumed for indoor cooling. In order to solve this problem, the method of adding heat insulating material to the paint is mainly used. Traditional building insulation fillers, such as aluminum silicate fiber, asbestos board, sepiolite, perlite powder, polystyrene particles, etc., the coating must reach a certain thickness of the coating to have a good heat insulation effect. In rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D161/20C09D7/12C09D5/33
Inventor 杨卓如徐梦漪王鹏文秀芳皮丕辉程江蔡智奇
Owner SOUTH CHINA UNIV OF TECH
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