Nano preservative

Abstract

The invention discloses nano preservative, which is characterized by comprising the following components according to percentage by weight: 5-10% of nano silver, 8-15% of scattered rosin sizing agent emulsion, 1-5% of citric acid and the balance of water. According to the nano preservative disclosed by the invention, the nano silver, the citric acid and the hydrophobic rosin sizing agent are combined, therefore, the easy leachability of a silver compound is overcome, the application of ammonia or amine solvents is avoided, the fixation performance of the preservative is increased, and the nano preservative is beneficial to keeping the protection effect and preventing the environment pollution.

Description

Technical field [0001] The invention relates to the field of building materials, in particular to nano-preservatives. Background technique [0002] Chromium and arsenic in wood preservatives are both toxic substances, which are easy to cause damage to the human body, especially when used indoors, they are more harmful to the human body. In the prior art, copper amine quaternary ammonium salt, copper azole, etc. Poisonous and environmentally friendly preservatives instead. The wood protectants in the prior art are all prepared by adding ammonia or amine solvents with antiseptic protective ingredients. The antiseptic ingredients and solvents (amines, ammonia) are formulated to melt copper compounds and achieve antiseptic protection. Solvents are essential, which not only consumes a lot of solvents, but also pollutes the environment because amine or ammonia solvents are easy to volatilize. In addition, due to the volatilization of solvents, some components of the preservative will...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the silver compound has poor anti-loss performance as a wood preservative and its amine or ammonia solvents are easy to volatilize and cause pollution to the environment, and have many adverse effects on human and animal health and the natural environment. Nano preservatives are provided.