Wood is a kind of natural organic material, with obvious biological characteristics, easy to be invaded by bacteria, insects, Marine drilling insects and other organisms. Before use, according to different application environment, the selection of appropriate preservatives, appropriate treatment, can effectively delay the decay of wood. With the improvement of people's living standard, the demand for wood is also increasing day by day. The forest resources available for logging in China are very limited and it is unrealistic to expect to import timber with large amounts of foreign exchange. Based on domestic, make full use of existing resources, the way of sustainable development, is our country wood industry development of the only way.

kathon preservatives are a mixture of 2-methyl-4-isothiazolin-3-one (MI) and 2-methyl-5-chloro-4-isothiazolin-3-one (CMI) and inorganic stabilizer, usually CMI∶MI = 3∶1.

The earliest leather mildew protection agent was p-nitrophenol used in 1934, and then β-naphthol, p-chloro-xylenol, salicylaniline and tetrachlorophenol were used. At present, there are the following types of anti-mildew agents for leather:

Fungicide A class of pesticides, generally fungicides, used to control plant diseases caused by various pathogenic microorganisms. The use of fungicides is a cost-effective way to control plant diseases.

Synthetic white latex: ethylene acetate and ethylene copolymer, is an emulsion type polymer, EVA for short, the appearance of milky white thick liquid, generally non-toxic and tasteless, no corrosion, no pollution, is a kind of water-based adhesive.

Wall anti-mildew agents are very small molecules, they can be deeply penetrated when used on the surface of the appropriate substrate, they react with the substrate and itself, obtain durability, curing, water vapor may pass through, liquid water can not enter the substrate. Wallpaper mildew is colorless transparent neutral waterproof agent (PH ≌8), will not react with the substrate, it can penetrate into the substrate interior to more than 3 mm, after curing, liquid water can not pass through, air can pass through, effectively prevent the wall moisture infiltration

Mold is a kind of fungus, its characteristic is mycelium is more developed, there is no larger fruiting body. Like other fungi, there are cell walls, parasitic or saprophytic survival. Some molds can transform food into toxic substances, and some may produce toxins in food, namely mycotoxins. Since the discovery of aflatoxin, the contamination of food by mold and mycotoxin has been paid more and more attention. It causes great harm to human health, mainly manifested as chronic poisoning, carcinogenesis, teratogenesis and mutagenesis.

Paint dry film antifungal agent, commonly known as paint film antifungal agent, refers to a preparation that is added to paint (latex paint) to kill and inhibit mold, protect paint film, and prepare antifungal paint. The purpose is to inhibit the growth of mold and ensure the health of home life.

1. What are the main components of paints and coatings? The main components of 　　 paint include the following five parts: 　　Oil: including dry oil and semi-dry oil, is one of the main film-forming substances. 　　 Resin: Including natural resin and artificial resin, it is also part of the main film-forming material. 　　 Pigments: Including coloring pigments, extender pigments and anti-rust pigments. There are quite a variety of specific types, and they are secondary film-forming substances. 　　 Thinner: Including solvents and diluents, used to dissolve the above substances and adjust the consistency, as an auxiliary film-forming substance. 　　 Accessories: including drier, curing agent, plasticizer, moisture-proof agent. It also belongs to auxiliary film-forming substances.

The upstream industries of the coating industry include the manufacturing of chemical raw materials such as resin, solvent, pigment, filler and additives, while the upstream of chemical raw materials such as resin and solvent is the petrochemical industry. The downstream of the coating industry is mainly construction, furniture, automobile, household appliances and other production enterprises and home decoration market.