Plastic raw material recycling involves a process of reusing waste plastics to transform them into valuable resources. Currently, the main types of waste plastics in China include plastic packaging films, woven plastics, foam plastics, plastic packaging boxes and containers, daily household plastics and their products, plastic bags, and agricultural film.
What are the advantages of plastic raw materials?
1. High strength and elasticity coefficient, high impact resistance, wide operating temperature range.
2. High transparency and free dyeability.
3. Low forming shrinkage, good dimensional stability.
4. Excellent fatigue resistance.
5. Excellent weather resistance.
6. Excellent electrical characteristics.

The role of recycling and reprocessing plastic raw materials:
1. Recycled material: After the waste plastic is manually sorted and classified, it undergoes processes such as crushing, granulation, and modification to become various transparent and opaque plastic granules. These granules are then sorted by quality and become reusable recycled material.
2. Fuel and plastic recycling often employs landfilling or incineration, resulting in significant resource waste. Consequently, overseas countries use waste plastics in blast furnaces as a substitute for coal, oil, and coke, in cement rotary kilns for cement production instead of coal burning, and in the production of Refuse Derived Fuel (RDF) for power generation, yielding ideal results. The technology of injecting waste plastics into blast furnaces utilizes the high calorific value of waste plastics, where waste plastics are processed into suitable particle sizes and injected into the blast furnace to replace coke or coal powder, representing a new method for waste plastic treatment.
3. Power Generation: Solid waste fuel power generation has been applied in the U.S. early on, with multiple RDF power stations in place, accounting for 21.6% of waste-to-energy plants. Some small waste incineration stations have been converted into RDF production stations to facilitate continuous-scale power generation. This has improved the steam parameters of waste-to-energy plants, boosting the power generation efficiency from the original 15% to 20%-25%.

The significance of recycling and utilizing waste plastic raw materials:
1. Protecting the environment is a well-known concern, as plastics have a significant impact on environmental maintenance, not only causing pollution but also posing risks. Particularly primary plastic products, such as disposable food containers and plastic bags; due to the convenience of plastics, they are widely used and often discarded carelessly after use, leading to white pollution scattered throughout urban outskirts. This severely affects our living environment as a human society.
2. Enhance land resource utilization; landfilling remains the primary method for China's urban waste management. Due to their low density and large volume, plastics can be rapidly buried, reducing the landfill's capacity to process waste. Additionally, as the subsoil of landfill sites is often soft, viruses and other harmful substances in the waste can simply seep into the ground, contaminating groundwater.
3. Increasing crop yields, plastic products degrade soil quality, severely affecting plant growth; plastics typically take at least 200 years to degrade, and abandoned agricultural films and plastic bags left in fields for long periods can hinder water and nutrient absorption by crops, inhibit growth and development, and reduce crop yields. If livestock ingest plastic films, it can cause digestive system diseases. Recycling abandoned agricultural films and plastic bags benefits crop growth and increases crop value.
4. Maintain atmospheric environment; Direct burning of waste plastics can cause serious pollution to social environmental issues, as it generates a large amount of black smoke when burning.
5. Recycled plastics protect biodiversity; plastic products, especially plastic bags, can cause harm if animals accidentally ingest them, which happens frequently.

What are the applications of recycled PC plastic?
Electronics & Electrical Appliances: Polycarbonate is an excellent insulating material, used for manufacturing insulated connectors, coil frames, tube sockets, insulating sleeves, telephone casings and parts, battery cases for miner's lamps, etc.
2. Machinery and Equipment: Used for manufacturing various gears, racks, worm gears, worm shafts, bearings, cams, bolts, levers, crankshafts, ratchets, and can also serve as parts for some machinery and equipment cases, covers, and frames.
3. Equipment: usable cups, tubes, bottles, as well as apparatus, drug containers, and surgical instruments.
4. Other Applications: Used in construction for hollow steel reinforced double-walled panels, greenhouse glass, etc.; in the textile industry for textile spindles, machine bearings, etc.; in daily use for baby bottles, tableware, toys, models, LED lamp casings, and mobile phone casings, etc.
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