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A kind of water-based nano high-efficiency solar heat collecting coating and preparation method thereof

A solar heat collection and nano technology, which is applied in the field of solar thermal energy, can solve the problems of weak coating, low reflectivity and low solar absorptivity.

Inactive Publication Date: 2011-11-30
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally used heat-collecting coatings are solvent-based, and often the coating is not strong enough, the absorption rate of solar energy is not high enough, and the reflectivity is not low enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] 1. Production of Ethylene Propylene Emulsion Modified Emulsified Asphalt

[0007] formula:

[0008] Component name Amount ratio

[0009] No. 10 asphalt 50

[0010] No. 60 asphalt 50

[0011] Ethylene Propylene Emulsion 10

[0012] water 100

[0013] Sodium hydroxide 0.5-2.0

[0014] Water glass 1.0-2.0

[0015] Polyvinyl alcohol 1.0-8.0

[0016] Emulsifier X-102 0.5-1.0

[0017] Process:

[0018] Add 50% of the total water to polyvinyl alcohol, heat to 80°C-90°C to dissolve the polyvinyl alcohol and replenish evaporated water at any time; heat the rest of the water to 40°C-50°C, add such as sodium hydroxide to dissolve and then add Water glass, heated to 70°C-80°C; mix the two parts evenly, add ethylene-propylene emulsion and mix evenly, keep warm to 70°C-80°C to make an emulsion.

[0019] The bitumen is melted and dehydrated, and kept at about 180°C.

[0020] Slowly add the melted and dehydrated asphalt into the emulsion kept at 70°C-80°C under high-speed st...

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PUM

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Abstract

The present invention specifically involves a water -based, high -efficiency solar heating coatings with nano -material as a function filler.The base material of the coating is an emulsifier modified by the ethyleic emulsion. The function fillers are nano -level lead (PBS). The aids are specially added with epoxy silicane puppets.The coating is environmentally friendly, the solar energy absorption rate is high and the reflectance is low. The coating structure is reasonable, dense, strong, and strong.

Description

technical field [0001] The invention relates to the technical field of solar heat energy, in particular to a water-based nanometer high-efficiency solar heat collecting coating. Background technique [0002] China is the world's largest producer and consumer of solar water heaters. The most important performance of water heaters is heat collection, which is achieved through heat collection coatings. Heat collecting coatings are manufactured by applying paint, electroplating or vacuum sputtering. Applying coatings to make solar thermal collector coatings is a common manufacturing method. [0003] Generally used heat-collecting coatings are all solvent-based, and often the coating is not strong enough, the absorption rate of solar energy is not high enough, and the reflectivity is not low enough. [0004] The purpose of the present invention is to provide a water-based nano high-efficiency solar heat collecting coating and its preparation method, which can produce an environ...

Claims

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Application Information

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IPC IPC(8): C09D195/00C09D123/16C09D7/12C09D5/32
Inventor 张文知
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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