Do you know that there are natural preservatives in animals too? Since most of the preservatives currently used are synthetic, excessive use will cause certain damage to the human body. Therefore, my country has strict regulations on the use of preservatives, and it is clear that preservatives should meet the following standards: reasonable use is harmless to human health; does not affect the flora of the digestive tract; can be degraded into the normal components of food in the digestive tract; does not affect special It is the use of antibiotics; no harmful components are produced when heat-treating food. So far, my country has only approved 32 types of food preservatives that are allowed to be used. Preservatives are divided into chemical preservatives and natural preservatives.

Change the properties of the corrosive medium to prevent or reduce the corrosion of metal products or equipment by the medium. This method can only be used under conditions where the volume of corrosive media is limited. Environmental treatment can be divided into two categories:

Nowadays, the use of preservatives is more and more extensive, whether it is in food, or in medicines, pigments, lotions, etc. Its main function is the growth and reproduction of microorganisms to achieve the effect of extending the shelf life. Then, when purchasing, you should meet the following criteria.

[The properties of preservatives include persistence, economy, safety and effectiveness. The specific analysis is as follows]

Wood preservatives can effectively penetrate into the surface and interior of the treated material, and can play a long-term protective effect.

Today's paper mills are inseparable from paper preservatives, because paper preservatives can help paper mills solve many problems. Everyone should know that many kinds of bacteria and microorganisms will inevitably appear in the production process of paper mills, which will seriously affect the quality of pulp.

Speaking of construction adhesive, its application in the construction industry is very extensive. It seals various joints or holes in buildings to prevent the penetration of gases, liquids and solids. The construction adhesive preservative is used in the construction adhesive, which has the characteristics of safety, non-toxicity and sterilization, and has a good protective effect on the construction adhesive.

When purchasing cutting fluid preservatives, the editor recommends that you look at whether it has the following characteristics.

Industrial preservatives refer to substances that can prevent or inhibit the growth of microorganisms. Generally, they are added when the finished product is not contaminated to play a role in the preservation of the tank.

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.