PVC Granule Production Facility
PVC or polyvinyl chloride is one of the most used amorphous plastics. PVC has two types of use as hard and flexible. Hard PVC is mostly evaluated in areas such as pipes, window profiles and wall coverings. These have durable, high strength, hard and self-flammability properties.
Soft or flexible PVC types are mostly used in cable industry, floor coverings, toys and gloves. PVC, which stands out with its low heat stability, is a very high adhesive product to metal surfaces when heated. PVC, which is highly weather-resistant, is frequently preferred in cable manufacturing thanks to its easy processing, adhesion to metal surface and good electrical properties.
When PVC is directly exposed to heat, HCl (Hydrogen Chloride) is released and yellowing in PVC color occurs. Depending on the degree of degradation, PVC color shows yellowing, redness, browning and blackening, respectively. In addition, changes occur in the physical and chemical properties of the product. The waste gases and moisture released during the process are removed from the environment by vacuum.
Depending on the product type, some auxiliary additives must be used in PVC production processes.
In general, a PVC formulation is as follows:
- PVC refining (Vinyl Chloride)
- Strength Boosters
- Process Assistants
Additives such as flame retardants and optical whitener are also used with the above substances. Various PVC granules can be obtained by making changes to the above formulation according to the areas to be preferred for PVC formulations which are very different and wide usage areas and the characteristics of the final product.
PVC GRANULE TYPES
- Outer Case