Solar heat absorption material containing modified silkworm protein-gelatin

Abstract

The invention discloses a solar heat absorption material containing modified silkworm protein-gelatin. A light absorption agent, a film forming agent, a solvent and an assistant are evenly dispersed through a ball milling method, then a film forming assistant is added and evenly mixed, and the solar heat absorption material containing modified silkworm protein-gelatin is obtained. The solar heat absorption material containing modified silkworm protein-gelatin is prepared from, by weight, 50-100 parts of the film forming agent, 10-30 parts of the film forming assistant, 35-55 parts of the light absorption agent, 20-50 parts of the solvent and 10-30 parts of the assistant, wherein propylene glycol monopropyl ether or benzyl alcohol or the like serves as the film forming assistant. The preparation method of the film forming agent includes the steps that silkworm protein and gelatin are mixed according to the weight ratio of (5-10):(2-3), then mixed liquor of butyl acrylate and dimethiconol at the weight ratio of (1-2):(1-3) is added for chemical modification, then physical modification is carried out, and modified silkworm protein-gelatin is obtained. According to the solar heat absorption material, the film forming agent is modified and then serves as an important raw material for preparing the paint, so that the prepared paint has good weather resistance and waterproofness under outdoor conditions; besides, the preparation process is simple and easy to understand, and the heat absorption efficiency of the heat absorption paint can be guaranteed.

Description

technical field [0001] The invention relates to a heat absorbing material, in particular to a solar heat absorbing material containing modified silkworm protein-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 energ...

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Problems solved by technology

[0005] The current solar heat-absorbing coatings are full of researches specifically aimed at the weather resistance and water resistance of solar energy coatings. Nowadays, nano-materials are used as raw materials for heat-absorbing materials, which can improve the weather resistance and heat-absorbing efficiency of coatings. For example, Chinese patent CN102286243A , but the cost is extremely high; there are also changes in the formulation of pigments to improve the weather resistance of the prepared coatings, such as Chinese patent CN102134428B, but its preparation process is complicated and requires high

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