Plastic has long been in demand in human life. It is used for packaging food and non-food products. Various household items are created from it. When the life of the plastic passes, it is thrown away. Polypropylene waste can be used for processing, so you can get new products.
Collection and delivery of polypropylene
Polypropylene is a polymer that externally represents a white solid created by polymerization. The material is used for the manufacture of films, bags, parts for car seats, inhalers, disposable syringes, caps for PET bottles.
Over time, things become unusable. Polypropylene waste can be disposed of, but after entering the incinerators, the material breaks down into components that are harmful to nature and humans. But you can turn in unnecessary polypropylene products for recycling. This will prevent pollution, as well as receive a monetary reward. New consumer goods are obtained from waste . The reception of polypropylene waste is carried out by private companies that are engaged in their processing.
Where does the raw material come from?
Polypropylene is one of the safe for human life and the environment. The material is used in the creation of food storage containers. When he served, they throw him away. The decomposition time is long, due to which there is pollution of nature, and much faster than the decomposition of the product.
Sources of waste are as follows:
- Sprues. With the cleaning of aggregates, a substance is obtained, which includes ingots - spills. Raw materials are used in the creation of various goods that do not require high quality.
- Marriage. At each production there are defective products that are immediately sent for recycling. Such things are crushed, and then they are used for processing to get new products. This group includes sprues used a second time.
- Polystyrene waste. The secondary raw materials of these materials are used for the manufacture of packaging of food products, household items, and the replacement of damaged items of equipment.
- Medical polypropylene waste. The material is used for the manufacture of syringes, packaging for droppers, bottles for various means.
When choosing the scope of use of secondary raw materials, attention should be paid to the source material. Different products are created depending on its type.
Features
Features of the material include:
- Resistance to mechanical and chemical influences, especially alkalis.
- Strength.
- Low moisture absorption capacity.
Spent raw materials allows you to get granules. It is much cheaper than the primary product. Granules are colorless and colored, it all depends on the feedstock. The material is compatible with other natural and technological products. Secondary polypropylene has a low cost of production, profitable because of its profitability. Thanks to recycling, no waste remains that could harm the environment.
Using
The secondary polypropylene granule is an electrical insulating material. Due to its positive properties, waste is used in:
- medicine;
- mechanical engineering;
- chemical field;
- food.
Polypropylene waste is used to produce parts for cars. Body reinforcement cannot be completed without the use of artificial threads created from this raw material. Polypropylene is used to create housings for parts and elements of devices, but the most popular area is the manufacture of food containers, disposable syringes. All items from this raw material can be disposed of. The processing of such raw materials will be cheaper compared to the receipt of new products.
Disposal and recycling
Environmental pollution from waste products is considered an acute problem. Polypropylene recycling is easy to implement. Waste is used as a secondary raw material from which new products are created. Procedures reduce manufacturing costs and save nature. Many companies have a high cost of polypropylene waste. The price depends on the type of material.
The collection of synthetic winterizer and polystyrene waste, which are used for further processing, is in demand. After that, cases for disks, bags, bags, containers, plastic cups are obtained. The secondary polypropylene granule is in demand for producing fiber for marine ropes, films, tapes, insulating materials, packaging containers, buckets. Raw materials are used in the manufacture of pavement, noise insulation materials.
The processing procedure includes sorting, cleaning the material. Then it is crushed, crushed and sintered. The result is recycled materials. After this, the production of recyclables is carried out. Foam and polycarbonate waste is delivered at collection points. Since polymers are not handed over to plants in small quantities, acceptance points are therefore in effect. Polypropylene waste can be handed over to the population and organizations, receiving a reward for this.
Raw materials are indispensable in enterprises. Production of products from it is developed, the amount of recycling material is growing. Since the synthetic winterizer waste does not decompose due to natural factors, their planned disposal and recycling is needed. Therefore, there are enterprises to create recycled polypropylene. Consumer goods are obtained from raw materials.
Recycling methods
Thanks to modern technologies, it is possible to obtain secondary polypropylene in several ways:
- Extrusion. Raw materials are obtained by melting and squeezing the mass into special forms.
- Casting. The raw material is placed in a mold after processing it into granules. The material hardens to the specified size and shape.
- Foaming. Gaseous substances are placed in the raw material base. With hardening, a polymer of a porous structure is obtained.
- Blowing. The procedure is based on obtaining the desired shape by forcing heated air. Used to get bottles.
- Rotational molding. The method is based on obtaining by placing the raw materials in a rotating form with its heating. Rotation is carried out through 2 or more axes. Raw materials are distributed within the form and become a hollow object. The method is suitable for the manufacture of cans and tanks.
With each method, high-quality polypropylene products are obtained. They are suitable for use in various fields.
What do they produce?
Polypropylene production waste is used to produce:
- car floor mats;
- gaskets for mounting pipe systems;
- nozzles used in obtaining automobile ventilation systems.
But the most popular products include boxes and cases, profiles, panels, decorative overlays. A special secondary raw material is considered to be the material that has been processed after cleaning. When the level of pollution is high, and the waste has many impurities, they are subjected to thorough cleaning. Only then does processing take place.
Construction
The material is used to create details of housing communications systems - water and sewer pipes. Polypropylene is used in the manufacture of valves and pipe fittings. With it, light elements of the supporting structures of buildings are obtained.
Secondary polypropylene is involved in the creation of profiles, guides and fasteners. Due to the ease of raw materials, the speed of construction of new facilities is ensured. It is indispensable as a hydro- and heat-insulating material, therefore it is part of panels, plates, blocks.
Automotive
Raw materials are also used in the automotive industry. From it receive pipes (ventilation, cooling systems), as well as seals (for doors, hood, body), rugs. The use of recycled materials has its own nuances. Its quality is determined by the operating conditions of the primary product. A small external impact on the material allows you to create high quality polypropylene. Then the characteristics will be similar to the primary properties of the raw material.
Secondary polypropylene is rarely used to create machine parts. In case of use, it is mixed with the primary. Such a composition serves to create a capacity for fixing the battery, headlight housing, spoilers. Raw materials also serve in the manufacture of many other consumer goods that are used in everyday life.