Use anti-oxidant or varnish. Choose antioxidants first.
Note the antioxidants, not the antioxidants.
An antioxidant is a molecule (often especially in living organisms) that slows or prevents oxidation. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent, generating free radicals that initiate a chain reaction. When a chain reaction occurs in the cell, the cell is destroyed or apoptotic. Antioxidants remove free radicals, stop the chain reaction and inhibit other oxidation reactions, while themselves being oxidized. Antioxidants are usually reducing agents, such as mercaptans, ascorbic acids, and polyphenols.
Antioxidants are also an important additive in gasoline. It can prevent the oil from oxidizing and deteriorating during storage to form gelatinous precipitation, which can hinder the normal operation of the internal combustion engine.
Substituted phenol and aniline derivatives are commonly used as antioxidant additives in gasoline
Although oxidation is important, it can also cause damage to living organisms; As a result, plants and animals have evolved a variety of antioxidants, such as the common glutathione, vitamins C and E, enzymes such as catalase and superoxide dismutase, and various peroxidase enzymes. Low-order antioxidants, or inhibitors of antioxidant enzymes, can trigger oxidative stress, leading to cell damage and death.
Since oxidative stress is an important component of a number of diseases, the pharmacological use of antioxidants, especially in the treatment of stroke and neurodegenerative diseases, has been intensively studied. In addition, oxidative stress is also the cause and result of some diseases.
Anti-oxidants generally refer to the anti-rust (rust is oxidation) agent produced by nanotechnology, with colorless, odorless, environmental protection and safety characteristics, compared with the general anti-oxidation oil, anti-rust time up to 1-2 years. This product has good hard water resistance, good thermal stability, and still has good function at high temperature. Applicable to all metal containing materials, spray and impregnation, generally do not contain nitrite and nitrate, and can form a hydrophobic film on the surface of the metal. The stone does not rust and is difficult to oxidize, but a dense anti-oxidant coating can prevent serious weathering.
Varnish, also known as vari water, is a coating composed of a resin as the main film-forming substance and a solvent. Because the paint and film are transparent, it is also called transparent paint. Apply to the surface of the object, dry to form a smooth film, showing the original texture of the surface. Varnish as the most important paint in the field construction of home decoration has its own unique reasons. Polyester paint is very demanding for the construction environment and construction technology, while varnish is not. In the process of brushing, the flow often produced by the flow (paint tears), for example, polyester paint in the process of brushing the flow of the formation of the coating once it is difficult to dissolve, and the leveling of the varnish is very good, the flow of the hanging does not matter, brush again, the flow of the hanging can be redissolved. Varnish is mainly divided into oil-based varnish and resin varnish two types, with transparent, gloss, film forming fast, water resistance and other characteristics, the disadvantage is that the film hardness is not high, poor heat resistance, easy to yellow under the action of ultraviolet light. Lower-density varnishes are often used on paintings as a protective layer. However, although the varnish has a certain anti-oxidation effect, it is obviously insufficient compared with the real anti-oxidant.