A kind of tung oil composite paint that absorbs formaldehyde and preparation method thereof

Abstract

The invention discloses a formaldehyde-absorbing tung oil composite paint and a preparation method thereof. The target object includes a fatty acid triglyceride polymer with a maleic hydrazide structure and tung oil. In the tung oil composite paint, the mass of fatty acid triglyceride high molecular polymer with dihydrazide structure accounts for at least 30% of the total mass of the tung oil composite paint. Fatty acid triglyceride polymer in tung oil is grafted with a high molecular weight polymer having a hydrazide structure through chemical reactions such as Diels-Alder (D-A). The polymer component and synthesis method of the tung oil composite paint for adsorbing formaldehyde are innovative, and the hydrazide structure of the composite paint can continuously capture and remove formaldehyde molecules in the environment for a long time. It embodies the function of tung oil composite paint and the concept of natural environmental protection plant paint.

Description

Technical field [0001] The invention relates to a tung oil composite paint capable of absorbing formaldehyde and a preparation method thereof. Background technique [0002] In recent years, with the improvement of human living standards, people have put forward higher requirements for paint used in decoration. Not only do they hope that the paint should not contain formaldehyde and benzene organic molecules that can cause harm to human health, but also hope to a certain extent It can improve the surrounding living environment, for example, it can absorb or inhibit formaldehyde molecules in furniture and the air, and play a role in improving the environment. [0003] Tung oil is the oil squeezed from the seeds of tung tree, millennium tung, or other tung oil seeds of the Euphorbiaceae family, a special oil tree species in my country. Tung oil is a traditional export commodity in my country. Its output and quality rank first in the world. It has always enjoyed a high reputation in t...

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Problems solved by technology

[0008] 1. Antibacterial particles are filled into the paint, the two phases are separated, and exposed to the air for a long time, the particles will be separated from the organic phase, resulting in a decrease in the antibacterial performance of the paint

[0009] 2. The matrix of this type of polyester paint is a synthetic polymer material, limited by the inherent chemical properties of the polymer molecular chain, a variety of dispersants, curing agents, modifiers, and film-forming agents must be added to the components of the composite paint And other fillers are not natural environmental protection materials in the true sense

[0011] 1. Tung oil has always been used as a modifier to graft and modify industrially synthesized polyester polymer materials. The modified composite paint obtained cannot reflect the unique advantages of natural environmental protection paint based on tung oil.

[0012] 2. The utilization technology level of the existing tung paint is low, mainly focusing on using tung oil directly as functional coatings with properties such as anticorrosion and waterproofing, without considering the added value of composite paints with other special functions, which greatly limits the use of tung oil in my country. The application and market of natural tung oil

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