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Polypropylene Random Copolymer (PPR)
PP Random Copolymer (PPR) is a type of thermoplastic polymer formed by the polymerization of a monomer called propylene (C3H6). PPR is created by the irregular arrangement of propylene monomers.
PPR is specifically obtained through the polymerization of propylene with varying proportions of ethylene. This affects the polymer's crystalline structure and thermal properties. PP Random Copolymer can have a high crystalline structure as well as a lower melting point.
SPECIFICATIONS
Chemical Structure
The chemical structure of PPR consists of propylene monomers arranged in an irregular pattern, which determines the properties of the polymer.Its irregular structure allows the polymer to form crystalline regions in certain areas while having an amorphous structure in others.
Physical Structure
The physical appearance of polypropylene random copolymer (PPR) is typically transparent or slightly opaque. This means the material can be optically clear. In its natural form, PPR is usually white or slightly colored.
Melting Point
he melting point of PPR can vary approximately between 130 to 171 degrees Celsius.
Density
The density of PPR can vary approximately between 0.89 to 0.91 g/cm³.
Mechanical Properties
PPR is a material with high strength properties. This means it has excellent mechanical properties, such as tensile strength, elongation at break, and impact resistance.
Chemical Resistance
PPR is resistant to many acids, alkalis, and solvents. This ensures that the material does not degrade when exposed to chemical substances.
Water Absorption Rate
PPR has a low water absorption rate, which increases its resistance to water.
Electrical Properties
It does not conduct electricity well, which means it has high electrical insulation resistance.
Food Safety
PPR is commonly used in the food industry and is suitable for food contact after proper processing.
Elasticity
PPR can exhibit a degree of flexibility, which can be advantageous in certain applications.
Stress Relief
PPR is not prone to deformation under long-term stress.
PRODUCTION
PRODUCTION STAGES
The first stage involves the preparation of propylene monomers, which is achieved through refining and processing steps to remove unwanted additives and components. The prepared propylene monomers are then polymerized by bringing them together with the aid of a catalyst. Catalysts are typically metal oxide catalysts.
Following the polymerization process, the resulting copolymer mixture is purified through various processes, including the removal of unwanted by-products and additives.
The obtained polypropylene copolymer is shaped through an extrusion process, enabling the production of the material in various forms. Subsequently, it can be packaged in granule form for storage.
The resulting PPR granules are then transformed into the final product form through injection molding, blow molding, or other shaping methods.
APPLICATIONS
Water Pipes and Drainage Systems
PPR is widely used in the construction of water pipes and drainage systems. Its durability and chemical resistance make it preferred for applications in contact with water.
Chemical Industry
PPR is commonly preferred for pipelines and coatings used in chemical plants.
Energy Sector
PPR is preferred for thermal power plants, energy transmission lines, and energy production equipment due to its high temperature resistance.
Automotive Industry
In the automotive sector, it is used in applications such as cooling systems, air intake systems, and fuel lines.
Construction Materials
In the construction sector, PPR is used in the construction of pipelines, coatings, and other structural elements.
Food Industry
In food production and processing facilities, PPR can be used for production lines, storage containers, and packaging materials.
Electrical and Electronic Industry
It is used as insulation material for electrical panels, connectors, and other components.
Agricultural Supplies
PPR can be preferred for irrigation systems and greenhouse equipment.