Recycled low density polyethylene (LDPE) is a plastic material made by recycling and recycling waste plastics. LDPE is a thermoplastic with good toughness, strong chemical resistance and good wear resistance. It is often used to make films, ropes, packaging bags, plastic bags, plastic containers and other items. Recycled LDPE can reduce resource waste and environmental pollution, and is an environmentally friendly material. At the same time, the use of recycled LDPE can also reduce manufacturing costs and improve product competitiveness.
The whole regenerative LDPE process has four main steps:
Crushing process: The effect of grinding and washing with water is better. Because some good high-pressure films are kept sufficiently clean, they can be re-blown without adding new materials. Therefore, pay attention to cleaning during the crushing process, when the crushing material flows into the sink, it is best to roll again, and the purpose is to further rinse the cleaning point.
Drying process: Generally, it is to the dryer to dry the remaining water, if there are conditions to dry, so as to save electricity, improve quality, of course, pay attention to prevent secondary pollution of materials in drying.
The granulation process: The particles produced by special extruders have two basic uses: reblowing film and injection molding. The material coming out of the 60 to 80 mesh filter can be blown again; The material coming out of the 40 to 60 mesh filter can meet the quality requirements of injection molding. In general, the high pressure material blows the film again, the good blowing color almost blows the black film and the garbage bag, and the price is lower after the injection of plastic.
Graining process:usually cold water graining. This process must pay attention to distinguish labels when packing. One for blow molding, one for injection molding, in case of confusion. In addition, the packaging bag for blow molding must be lined with an outer bag to avoid secondary pollution.
Recycled low-density polyethylene is widely used, and the following are some common application areas:
1. Packaging: recycled LDPE is usually used to manufacture plastic bags, packaging films, foam packaging, etc.
2. Agriculture: recycled LDPE can be made into agricultural film, pesticide bag, greenhouse film, etc.
3. Construction: recycled LDPE can be used to make waterproof film, insulation material, carpet and so on.
4. Automobile: recycled LDPE can be made into car interior, car seat shell, etc.
5. Furniture: recycled LDPE can be used to manufacture furniture accessories, potted plants, etc.
In short, recycled low-density polyethylene has important applications in various fields and has great market demand. The use of recycled LDPE is conducive to saving resources, protecting the environment, and can also bring economic benefits to enterprises.
Recycled ldpe is actually mainly used for woven bag lining film, food packaging film, daily necessities packaging film, greenhouse film. Most of these films are natural, but also light blue, black, it is best to separate the color before recycling. Can not put low pressure film,PP film together, can not put OPP and pvc film in. The recovery and reuse of LDPE is the recycled LDPE process.
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