Modified casein-gelatin-containing solar energy heat absorbing coating material

Abstract

The invention discloses a modified casein-gelatin-containing solar energy heat absorbing coating material, wherein a light absorbing agent, a film forming agent, a solvent and an auxiliary agent are uniformly dispersed by using a ball milling method, a film forming auxiliary agent is added, and uniform mixing is performed to obtain the modified casein-gelatin-containing solar energy heat absorbing coating material, wherein the raw materials comprise, by weight, 50-100 parts of the film forming agent, 10-30 parts of the film forming auxiliary agent, 35-55 parts of the light absorbing agent, 20-50 parts of the solvent and 10-30 parts of the auxiliary agent, and the film forming agent preparation method comprises: carrying out mixing and water adding on casein and gelatin according to a weight ratio of 5-10:2-3, soaking at a temperature of 15-22 DEG C, adding a mixed liquid comprising hydroxyethyl methacrylate and polydimethylsiloxane according to a weight part ratio of 1-2:1-3, calcining for 5-10 h at a temperature of 200-300 DEG C, carrying out air jet pulverization on the calcined product, grading, calcining, and carrying out ball milling to obtain the modified casein-gelatin. According to the present invention, the film forming agent is modified so as to be the important raw materials for preparing the coating material of the present invention, such that the prepared coating material has good whether resistance and good water resistance under the outdoor condition; and the preparation process is simple and easy to understand, and the heat absorbing efficiency of the coating material can be ensured.

Description

technical field [0001] The invention relates to heat-absorbing materials, in particular to a solar heat-absorbing paint containing modified casein-gelatin. Background technique [0002] Energy utilization plays a pivotal role in the development of human society, but the excessive development of resources and inefficient resource utilization make human beings face a severe test. As we all know, solar energy is the most abundant and widely available renewable energy, which plays a major role in solving energy crisis and environmental problems. , making it a hot research topic in various countries. Our country is rich in solar energy resources and has broad prospects for solar energy utilization. At present, it is the first user and producer of solar water heaters in the world. [0003] Solar thermal application is one of the simplest, most direct, and most effective ways for human beings to utilize solar energy. However, due to the small and discontinuous energy density of s...

AI Technical Summary

Problems solved by technology

[0005] The current solar heat-absorbing coatings are full of researches on the weather resistance and water resistance of solar energy coatings. Nowadays, using nano-materials as raw materials for heat-absorbing materials can improve the weather resistance and heat-absorbing efficiency of coatings. For example, Chinese patent CN 102286243 A, but the cost is extremely high; there is also the use of changing the formula of the pigment to improve the weather resistance of the prepared coating, such as the Chinese patent CN 102134428 B, but its preparation process is complicated and requires high

Images