150um Yellow Polyethylene Volatile Corrosion Inhibitor Film VCI Packaging Films

Product Specification

150 μm yellow polyethylene volatile corrosion inhibitor film, for metal packaging, export packaging, maintennance, etc.

The 150-micron yellow polyethylene volatile corrosion inhibitor (VCI) film is a specialized type of packaging material used to protect metal products from corrosion and damage due to environmental factors such as moisture, humidity, and oxygen. The film uses VCI technology, which releases chemicals that evaporate into the air and form an invisible protective layer over the metal surfaces. This protective layer works by inhibiting the oxidation and corrosion of metal, keeping it in good condition for extended periods. Here are some main applications of 150-micron yellow polyethylene VCI film:

1. Manufacturing and storage of metal products:

Metal products such as coils, pipes, tubes, and sheet metal are particularly susceptible to corrosion. VCI films help in the storage of these products by protecting them from environmental damage during transportation and storage.

2. Export shipments:

VCI films are used to protect metal products during export shipments, particularly when the environmental conditions of the destination locations are different from that of origin.

3. Military and Defense sector:

VCI films are frequently used in the military and defense sectors to protect weapons, ammunition, and other metal-based equipment, where environmental conditions can cause the metal to corrode.

4. Automotive Industry:

VCI films are used in the production and storage of automotive parts such as engines, transmissions, and brake system components, where exposure to moisture and corrosive agents can be detrimental.

5. Machine and parts repair:

VCI films can also be used to protect metal parts during their repair.

Overall, 150-micron yellow polyethylene VCI film plays a crucial role in protecting metal products from corrosion during manufacturing, transportation, and storage. It offers excellent protection against harsh environmental conditions, making it an ideal packaging material for a wide range of products across various industries.

VCI (volatile corrosion inhibitor) film is made of a combination of plastic polymers and corrosion inhibitors. The plastic polymers used in the film can be low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), or high-density polyethylene (HDPE), among others. These polymers provide strength, flexibility, and durability to the film.
 
The corrosion inhibitors used in the VCI film are a blend of different chemicals that release vapors or molecules that react with the metal surface and form a protective layer. The type and concentration of the corrosion inhibitors used in the film may vary depending on the specific application and the type of metal being protected.
 
Some common corrosion inhibitors used in VCI films include:
 
1. Amines:
These are organic molecules that release vapor or molecules that react with the metal surface and form a protective layer.
 
2. Nitrites:
These are chemical compounds that release a combination of nitrogen and oxygen ions that neutralize corrosive elements.
 
3. Phosphates:
These are compounds that react with metal surfaces to form a protective layer, which inhibits corrosion.
 
4. Benzotriazoles:
These are organic molecules that form a thin protective layer on metal surfaces, inhibiting corrosive ions from interacting with the metal.
 
The production of VCI films involves several steps. Here's a brief overview of the process:
 
1. Mixing of Plastic Resins:
The production process usually starts by mixing different plastic resins, such as LDPE, LLDPE, or HDPE, in a large mixing vat. The specific blend of plastic resins used will depend on the desired properties of the finished VCI film.
 
2. Addition of Corrosion Inhibitors:
Once the plastic resins are mixed, a specific blend of corrosion inhibitors is added to the mixture. The specific blend and concentration of corrosion inhibitors used will depend on the type of metal being protected and the desired level of corrosion protection.
 
3. Extrusion:
After adding the corrosion inhibitors, the plastic resin mixture is extruded through a die, which forms the VCI film into a continuous sheet or roll. The extrusion process involves heating and melting the plastic resins and corrosion inhibitors to form a homogenous mixture.
 
4. Cooling:
The extruded VCI film is then cooled, either by air or water cooling, to solidify the plastic resins and corrosion inhibitors into a stable film.
 
5. Slitting and Winding:
Once the VCI film is cooled and solidified, it is then slit and wound onto rolls of various widths and lengths, depending on the customer's requirements.
 
The production process of VCI films may involve additional steps or modifications, depending on the specific manufacturer and the desired properties of the finished film. However, the basic steps outlined above are common across most VCI film production processes.