Prevailing abroad vapor-phase anti-rust plastic packaging

All metal products are faced with corrosion problems. People have been fighting for corrosion protection and have also found a variety of anti-corrosion methods such as electroplating, dipping, vacuum packaging, painting, and oil painting. However, some metal products are not suitable for the above methods. Therefore, people study the use of vapor phase rust prevention methods. In this regard, the United States, Japan, and the former Soviet Union have studied for more than 20 years. Vapour-phase rust-proof plastic packaging has become popular in the world for nearly five years. However, domestic research has been successful and there has been very little commercial production.

VCI plastic packaging is an emerging technology that will replace rust-proof greases and rust-proof papers. Such as weapons, precision instruments, electronic instruments, electronic devices, automotive parts, hardware tools, bearings, lamps and other storage. Its principle is that vapor phase rust inhibitors can be vaporized (sublimed) directly under normal temperature and pressure and reach a saturated vapor state in a closed environment. The molecules adsorb to the metal surface to form a dense and transparent protective film to prevent metal corrosion. Moreover, because the preservative molecules are in a gas state, no pores are present, and no matter how complicated the appearance of the metal products, the desired rust-proof effect can still be obtained.
Vapor-phase rust-proof plastic film is a product of vapor phase rust inhibitor combined with plastic. In the course of the study, it was found that there are many types of vapor rust inhibitors and they have different effects on different metals. Since most of the metal products on the market are metal assemblies, it is necessary to reconstitute a variety of drugs that have rust-preventive effects and allow them to be well-integrated with plastics so that vapor-phase rust inhibitors can be slowly released and prolonged. The rust period is the key to this packaging technology. The plastic bag made by the composite method, the outer layer of high barrier nylon material makes the vapor phase rust inhibitor only release into the bag and spreads out of the bag little, preventing the loss.