What is a PVC granule?
PVC granule is a form of polymer made in small, colored pellets. So it is not a particular type of polymer itself, but only a particular form of it. In the industry, they melt these small grains to use PVC granules and then consider it. PVC granule production usually goes through recycled materials. The lesions made up of PVC, such as car flooring, slippers, hoses and more. After washing, they will be recycled through complex processes. Finally, the same small grains of the granule granule are pvc.
The appearance differences between the powder and the granules of the PVC
is the first difference in their appearance and how they are produced. Granules are produced by the extruder in the form of small, bullet -like seeds, but the powder is much smaller and like powder. Unlike granules, which originate from recycled materials, PVC powder has a root in the petrochemical industry and petroleum material. Also, the color of the PVC powder depends on the materials produced, but the color of the granular is determined by the experts in the production line; That is, the color of the PVC granule is variable and controllable.
PVC granule recycling methods
Recycling PVC plastic materials. PVC is the third most widely used plastic in the world and covers a large amount of waste produced. As a result, the use of PVC granules in addition to affecting the cost of this material and reducing it is also beneficial for the environment.
Chemical recycling
One of the types of recycling is the use of chemical materials and processes. In fact, chemical recycling allows for recycling those polymers that cannot be recycled by mechanically due to chemical contamination and dangerous. It may also not be possible to use the mechanical method due to the mixing of waste. Processes such as hydrolysis or pyrolysis are used to convert waste into reuse materials. Pirvilis is a technique that breaks down plastic waste into the absence of oxygen. The material obtained from this process is like oil and is liquid. Hydrolysis also includes the addition of water to a large molecule and breaks it to smaller molecules. Processes similar to what has been said are products such as sodium chloride, calcium chloride and hydrocarbon materials that can be used to produce PVC.
Mechanical recycling
The way that has the most recommendation as a PVC granule recycling method is this mechanical method. The easiest route is to recycle these materials directly in the same manufacturer that produces waste and PVC waste. PVC recyclable parts are first separated and their impurities are eliminated. They are then washed and milled into small, very small particles. The same particles can then be melted and combined with other materials to make a new product. It can also be molded and ready to be used without adding fresh materials.
PVC granules
PVC granules are produced in two types of hard and soft. In fact, adding a certain amount of softeners can reduce the hardness of granule and produce soft PVC granules.
Soft granule
The hardness range of soft granules is usually between 40 and 100 and can be used in a wider range of industry. Because it has high flexibility and can be transformed into different forms. A branch of PVC granules are TPE granules that are combined with a substance called NBR. This material is added to increase the elasticity of the granules. Softgarell is more commonly used to make soft and flexible plastic. You can also find traces of it in the production of a variety of products such as hose, wallpaper, tablecloths, cables and wires and other similar products. It should be noted that the same type of granule is used for health use.
Hard granules
Due to the poor use of softeners in this type of granule, they are called Hard PVC Granules or Hard PVC. Also its name is upvc, which may be more familiar to your flesh. This model is used to produce pipe fittings, door profiles and windows, canals and shutters. In general, hard granules can be found in the construction industry. For example, hard granules are used in products such as stairs, front windows and studs.
