Novel solar heat collecting material and preparation method thereof

Abstract

The invention provides a novel solar heat collecting material and a preparation method thereof. The novel solar heat collecting material is prepared from the following components of modified acrylateemulsion, organosilicone resin, terephthalate, filler, graphite, carbon fiber, an organic solvent, nanometer spinel material, polyethylene glycol, ferric nitrate, manganese nitrate, silicone oil, a curing agent, a leveling agent, a coupling agent, a light absorbent, a wetting agent, a film forming agent and deionized water. The prepared novel solar heat collecting material has the advantages thatthe solar absorbing property is excellent; the solar absorbing range is expanded, the heat conductivity of the heat collecting material is enhanced, and the service life is longer; the conditions of reaction technology are mild, the production cost is low, and the novel solar heat collecting material is suitable for industrialized large-scale production.

Description

technical field [0001] The invention belongs to the technical field of heat collecting materials, and in particular relates to a novel solar heat collecting material and a preparation method thereof. Background technique [0002] Solar thermal utilization is an important form of solar energy utilization, which refers to the process of collecting solar radiation energy with solar collectors and converting it into thermal energy through the interaction with substances for utilization. As the problem of energy shortage becomes more and more serious, enterprises invest more and more in energy saving and emission reduction measures, which makes people's research on solar thermal utilization more and more extensive and in-depth, and solar thermal utilization will have a broader development prospect. [0003] Solar heat collecting material is the core functional part for absorbing light energy in the solar light absorbing system, and is usually used in solar heat collecting element...

AI Technical Summary

Problems solved by technology

At present, black organic coatings, such as black fluorocarbon resin, black epoxy resin, black polyurethane resin, etc., are sprayed on the heat-absorbing plate core of flat-plate collectors in the market. As a binder, ordinary carbon black or black pigment is used as a color body, so there are the following problems: 1. The material is not weather-resistant, and it is easy to pulverize and fade prematurely; 2. There is no spectral selectivity, so that the emissivity of the material is very low. High, resulting in low thermal efficiency of solar panel collectors

Although the solar heat collecting materials prepared by the above two prior art have good heat absorbing effect, their preparation process is complex and the materials involved are relatively expensive, and the weather resistance of the heat absorbing material is not ideal, which leads to its service life not long