Plant antimicrobial paint

Abstract

The invention discloses plant antimicrobial paint. The plant antimicrobial paint is prepared from extracts from leaves of camphor trees, a polymer emulsion, titanium dioxide, coarse whiting, calcined kaolin, talcum powder and acceptable additives in the paint. The extracts from the leaves of the camphor trees is dry powder prepared by that fresh leaves of the camphor trees is dried for 10 hours at a low temperature of 45 DEG C, and then subjected to crushing and screening. According to the weight ratio of 1:20, the dry powder of the leaves of the camphor trees is subjected to Soxhlet reflux extraction for 8 hours at about 80 DEG C with an acetone aqueous solution with the concentration of 50%, and an extracting solution is obtained; the extracting solution is distilled and then subjected to freeze drying, and the plant antimicrobial paint is prepared. The plant antimicrobial paint has the advantages that the extracts from the leaves of the camphor trees serve as a high-efficiency mildew preventive which has excellent anti-mold properties, so that the plant antimicrobial paint is long in shelf life, and the paint film is not prone to going moldy after the paint used for brush coating; the extracts from the leaves of the camphor trees are natural plant extracts, so the paint is environmentally friendly and free of toxicity and harm to human body; the paint is reasonable in composition and low in cost and has an excellent application value, and the compatibility among all the compositions is good.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a plant antibacterial coating. Background technique [0002] Most of the coatings used now use water-soluble or water-emulsified polymer materials as binders or as the main film-formers. Especially in summer, in a certain temperature and humidity environment, paint products are prone to mold, black, and smelly and cannot be used. In addition, after the coating is formed into a film, the mold will also cause the surface to grow moldy and turn green or black, and even cause the coating to fall off, which brings economic losses to manufacturers and users. [0003] Generally speaking, the main bacteria that cause moldy coatings are Pseudomonas aeruginosa, Escherichia coli, Micrococcus candida, Streptococcus lactis, Staphylococcus aureus, and Flavobacterium marine. The main molds that cause mold on the coating film are Aspergillus niger, Penicillium, and Rhizopus. [0004] At present, the m...

AI Technical Summary

Problems solved by technology

However, the effect of inorganic antifungal agents is poor, and many additives need to be added, and the processing cost is high; organic antifungal agents will age and decompose, resulting in a decline in the antifungal effect and affecting the film-forming properties of the coating.

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