How to distinguish between common waste plastics???

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According to the label of the plastic**, the details are as follows:

1. PET polyethylene terephthalate, also commonly known as polyester, is commonly found in PET bottles.

2、hdpe

High-density polyethylene, commonly found in lotion containers, milk bottles, supermarket plastic bags.

3. PVC polyvinyl chloride is commonly found in pipes, outdoor furniture, and raincoats.

4、ldpe

Low-density polyethylene, commonly found in the tube packaging of toothpaste or facial cleanser.

5. PP polypropylene, commonly found in bottle caps, straws, and microwave oven food boxes.

6. PS polystyrene, which is divided into unfoamed or foamed. Styrofoam is unfoamed, which is commonly found in some beverage containers, disposable insulated plastic cups, packaged frozen meat containers, and lunch boxes.

7. Other plastic products that can be used.

Including polymethyl methacrylate (PMMA), polycarbonate (PC), polylactic acid (PLA), nylon (nylon) and glass fiber reinforced plastic (FRP), biaxially oriented polylactic acid film (BOPLA), etc.

The meaning of **.

In 2011, China's waste plastic production was about 28 million tons, and in 2012 it was 34.13 million tons. If the storage, transportation, and processing of these waste plastics are not properly applied and post-processed, they will inevitably damage the environment and endanger people's health.

According to the "2019 Development Status of China's Recycled Plastics Industry" released by the 2nd China Recycled Plastics Industry Standards and Technology Innovation Conference opened in Shenyang on August 30, 2019, the development status of China's recycled plastics industry in 2019 shows that in 2019, domestic and foreign petrochemical giants, including Sinopec and SABIC, have paid unprecedented attention to this technology, and have begun to carry out industrial research and development of waste plastic pyrolysis and oilification technology and large-capacity continuous production equipment, and some environmental protection technology enterprises at home and abroad have also made substantial technological breakthroughs. The large-scale clean production equipment for pyrolysis and oiling of waste plastics is about to achieve industrial production.

The oil yield of the new technology of waste plastic pyrolysis and oilification can be as high as 80%, and the solid waste residue can be treated harmlessly, the breakthrough of this technology will change the single method of recycling waste plastics in China for a long time by relying on physical recycling, and the low residual value waste plastics can be converted into plastic oil through cracking technology, and then used as raw materials for the production of new plastics, so as to realize the closed-loop industrial chain of plastic circular economy of "petroleum - new plastics - waste plastics - plastic oil - new plastics".

**Waste plastic is only divided into two types, one is lighter than water, can float on the water, **** is higher The other is heavier than water, can not float on the water, **** is lower.

Waste plastics can be classified in two ways:

1. According to the different types of production, it can be divided into:

1. The first film of the film;

2. Bottles;

3. Styrofoam;

4. Additional charges for plastic footwear;

5. Polyurethane;

6. Phenolic plastic.

2. According to the different ways of reuse, it can be divided into:

1. Recycled plastics;

2. Reprocessing plastics;

3. **Plastic;

4. Reusable plastics;

5. Plastics can be reused;

6. Do not reuse plastics.

The more formal term for waste plastic is the consumption of waste plastics, which refers to the consumption or use of waste plastic products. Plastics are also synthesized, formed, processed and recycled, and these plastic wastes are also known as pre-consumer plastic waste. Although this also falls within the scope of waste plastics, it is easy to recycle due to the relatively small amount of waste plastics generated.

Manufacturers generally use their own ** and recycled products directly into production. Therefore, what we usually call waste plastics mainly refers to post-consumer plastic waste. Recycled plastic is the reuse of plastic, which is crushed by a mechanical blade.

Hope it can help you, thank you.

Waste plastics are directly crushed into powder or granular plastic packaging products, and they can still distinguish what the material is, such as injection molding, wire drawing, or film in China. Jujube and recycled material is a recycling I don't know how many times can not accurately distinguish what other things in time, selling the year of the forest can only be divided into grades according to the number of times of development recycling, the least start, special grade, first, second class in the mu so divided.

I hope this time was helpful to you, hopefully, thank you.

Generally speaking, transparent plastic bags, such as commonly used fresh-keeping bags, belong to plastic bags that can be used, and opaque plastic bags, such as colored plastic bags used in vegetable markets, as well as black garbage bags, with poor transparency and flexibility, belong to plastic bags that cannot be used. The reason is that opaque plastic bags are processed from waste plastics and have lost their value.

In general, there are several steps to identify waste plastics:

1. Look at the color;

2. Look at the brightness (the transparent material can be removed in this step);

3. Feel (weight, smoothness);

4. Ignition (whether the color of the flame is smoking, whether it is burning from the fire or not burning at all);

5. Smell the smell (all kinds of plastic smell are different, including flame retardants, etc.);

6. Wire drawing (CAC03 is definitely not good for more wire drawing, and the reinforced wire cannot be drawn).

There are currently three main ways to dispose of waste plastics in the world:

1. Use incineration or landfill to end its life cycle.

2. Use physical means to chop waste PET bottles into pieces and then separate and extract.

3. Chemical recycling technology treatment method of waste plastics.

The first two methods are widely used at present, but there are certain limitations of treated materials, which are prone to secondary pollution and energy consumption. The key to solving the plastic crisis lies in whether waste plastics can be "turned into treasure" by environmentally friendly, scientific and economical chemical means, enter the resource cycle and be reused. In this regard, Hengyu environmental protection technology is greatly advanced, and it is a national zero-waste city.

Advocate large-scale technical equipment, zero-waste city" to build pilot advanced and applicable technologies to achieve harmless treatment of waste plastics.

Waste plastics can be used for oil refining, and plastics such as PP PE can produce fuel oil through pyrolysis, etc., which can solve the problem of wax oil for plastic pyrolysis after catalytic cracking treatment.