Corrosion is the destructive erosion caused by a chemical or electrochemical reaction between a metal and its surroundings, a damage that occurs quietly over time. The effects of corrosion can be significant, causing consumption of metal materials and damage to metal equipment structures, reducing service life. Severe corrosion can also cause sudden disasters and environmental pollution accidents, such as corrosion of oil pipelines. In fact, in China alone, economic losses from corrosion are estimated to be around 3 to 4 percent of the economy.

There are many ways to prevent or slow down corrosion, such as the use of electrochemical protection (anodic/cathodic protection), and the use of thin films as a barrier against corrosive media such as moisture and oxygen.

One of the most common and economical methods of corrosion protection is to apply an anti-corrosion coating system to the metal, which creates a barrier between the metal and the corrosive medium. Additionally, electrochemical protection can be added to the coating by adding zinc and similar materials.

There are a variety of anti-corrosion coatings available worldwide with good performance in corrosive environments. For example, aluminum foil packaging and coated PVDC, referred to as PVDC laminated film. In recent years, with the increasing emphasis on environmental protection in the world, various policies have been promulgated to limit VOC emissions. Packaging material manufacturers tend to have high barrier effect, preserve flavor, and make lighter and thinner materials as research and development recommendations. .

As a new solution, PVDC (polyvinylidene chloride) composite film-acrylic co-adhesive has been developed and applied to aluminum foil packaging as one of the simple substitutes for blister packaging sublimation.

PVDC composite multilayers film provide excellent barrier properties to corrosive media (oxygen and water vapor).

Its copolymerization with PVC enables its excellent barrier properties and adhesion, as well as the durability and flexibility of acrylates, to form uniform films.

This co-binder performs well as an anti-corrosion primer, especially in low to moderate atmospheric corrosive environments.

Compared with traditional composite packaging, PVDC composite film has the advantages of quick drying, high-quality barrier properties, and flavor retention. For food, medicine, daily use, products with high demand packaging experience

If you need the PVDC multilayers bags, then please connected with us for the price quotation