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I. Definition and use of recycled plastics (PCR)
Recycled plastic (PCR) is a plastic material made from waste plastic or waste plastic products that are processed and reused. It is a sustainable alternative that reduces dependence on petrochemical raw materials and contributes to environmental protection.
Recycled plastics are widely used in a variety of fields, including packaging, building materials, furniture, and automobile parts. As recycled plastic has similar properties and characteristics as traditional plastic, it can completely replace traditional plastic and save resources while protecting the environment.
Second, the principle of recycled plastics to reduce dependence on petrochemical raw materials
The manufacturing process of recycled plastics mainly includes the steps of waste plastic recovery, sorting, washing, crushing, processing and regeneration. After these processes, recycled plastics can be mixed with new plastics, thus reducing the demand for petrochemical raw materials.
Recycled plastics can be categorized into two types: mechanical recycling and chemical recycling. Mechanical regeneration is the direct regeneration of waste plastic materials into plastic pellets after crushing, cleaning and other treatments so that they can be reprocessed and manufactured. Chemical recycling is the process of turning waste plastics into raw materials through chemical treatment, which can then be used to manufacture new plastics.
The manufacturing process of recycled plastics uses relatively less energy, and the main energy consumption lies in the process of recycling and processing of regeneration, while traditional plastics production is mainly through the manufacture of petrochemical raw materials, which consumes a lot of energy and emits a large amount of greenhouse gases in the petrochemical process.
Advantages and challenges of recycled plastics
Recycled plastics have the following advantages over traditional plastics:
Resource saving: Recycled plastics use less petrochemical raw materials in the manufacturing process, which can effectively reduce the dependence on limited petrochemical resources and contribute to resource saving.
Pollution reduction: Recycled plastics are manufactured by recycling and processing waste plastics, which can reduce the pollution of waste plastics to the environment. At the same time, the production process of recycled plastics emits relatively less waste gas and waste water.
Reducing greenhouse gas emissions: Recycled plastics use relatively less energy in the manufacturing process, which can reduce greenhouse gas emissions and have a certain mitigating effect on climate change.
However, recycled plastics also face some challenges in the process of popularizing their application:
Quality stability: recycled plastics are affected by different raw materials and different treatment methods during the recycling process, resulting in unstable quality and performance of recycled plastics, which poses certain risks to users.
Price competitiveness: Due to the complicated production process of recycled plastics, more costs need to be invested, which leads to the relatively high price of recycled plastics. Compared with traditional plastics, recycled plastics are less competitive in the market.
Difficulty of recycling waste plastics: Recycling waste plastics requires a perfect recycling system, including collection, sorting and other links. In some areas, the waste plastics recycling system is not yet perfect, resulting in some waste plastics can not be effectively recycled.
Suggestions for promoting the development of recycled plastics
In order to promote the development of recycled plastics, reduce the dependence on petrochemical raw materials and protect the environment and resources, we can take the following measures:
Government support: The government can introduce relevant policies and regulations to encourage and support the development of recycled plastics. For example, increase investment in waste plastic recycling and provide corresponding financial and tax support.
Enhance Consumer Awareness: Through publicity and education activities, improve consumers' knowledge and understanding of recycled plastics, cultivate their environmental awareness and increase their consumption of recycled plastic products.
Strengthen technical research and development: Increase the research and development of recycled plastic manufacturing technology to improve the quality and performance stability of recycled plastic. At the same time, reduce the manufacturing cost of recycled plastics to improve its competitiveness in the market.
Establishment of waste plastics recycling system: Strengthen the construction of waste plastics recycling system, improve the recycling rate of waste plastics, and provide more raw materials for the production of recycled plastics.
Improve the recyclability of recycled plastics: Improve the recyclability of recycled plastics by improving the raw materials and production process of recycled plastics, and reduce the negative impact on the environment.
In conclusion, recycled plastics, as a favorable tool for saving resources and protecting the environment, can effectively reduce the dependence on petrochemical raw materials. In order to promote the development of recycled plastics, it is necessary for the government, enterprises and consumers to work together to establish a perfect recycled plastics industry chain, promote its wide application and achieve greater environmental and economic benefits.