Technical issues encountered in plastic bottle recycling

A: Identification Technology

Many kinds of plastics, lack of practical identification techniques that can be operated on the spot, experience-based judgments; identification is the most basic technology, very particular about the experience, not a comprehensive 3 years, 5 years difficult to grasp; combustion identification is the most common, but In addition to experience and experience, in fact, there are also mature and simple experimental methods that can identify more than 100 plastics in more than 10 different categories. Without this effort, it is easy to take a look at the procurement of scrap, and everyone is familiar with the product. Either the price is high or there is no stock.

II: Cleaning and Cleaning Technology

Non-pollution plastic cleaning, cleaning technology (plastic surface coating, adhesive paper, paper, metal, wood and other impurities, the removal of recycled plastic odor, the application of high cleaning requirements: such as PET bottle tablets). Solvent-based cleaning technology is simply poisoning humans. Be careful and call your peers to stop using them. Including the ones recently recommended by the website, we have seen many places recently recommending cleaners for the recycling of waste plastics. Talk about several major hazards of solvent-based cleaners, look forward to peers also express their opinions, we discuss:

The first major hazard: poisoning the specific operations staff, sterilization \ cancer \ leukemia many malignant lesions are related to many organic solvents.

The second largest hazard: polluted water;

The third major hazard: prone to fire and explosion accidents;

The fourth major hazard: Under the impression that there has been no change in appearance, in fact, many solvents have a great influence on the performance of plastics, especially engineering plastics, but no detection equipment cannot be observed with the naked eye.

Fifth: The need to warm even more carefully, the solvent is very volatile, heating is very easy to fail, that can be repeated, with a second time it is difficult to say how.

Three: separation technology

1. Separation of various impurities in plastics: wind separation of density separation, selection of other mature separation equipments such as electrostatic selection and magnetic separation;

2. Separation technology of mixed plastics with the same density (PET/PVC, ABS/HIPS, PP/PE, various electrical appliances mixed plastics) (International leading plastic flotation technology, core technology of Guangzhou Iron and Steel MBA factory)

3, the same plastic different color particles separation technology

This is the core technology of the plastic recycling industry. It is difficult and has high added value.

Four: Recycling of Special Plastic Products

Composite film recovery technology, composite plastic recycling;

In the past two days, many websites have sold a lot of German sausage compound film messages, only 100 euros a ton, cheaper, because composite films are very difficult to recycle. However, most Chinese ham sausages are packaged with something called PVDC. It is not known whether there are different kinds of composite plastics in Germany and China. There are two kinds of recycling methods. One is separation and the other is modification, which can greatly increase the additional value. But the technical difficulty is very big.

V: Cannot form a closed-loop pollution problem

1, the sewage treatment process

2. Gas pollution in the granulation process, odor removal.

3, the problem of unrecoverable garbage

VI: Value assessment and application of recyclable plastic resources and recycled materials

1. Most enterprises lack basic inspection and inspection equipment, and the industry lacks the recognized pricing basis based on the characteristics of the resources themselves;

2. The lack of operable standards for classification and classification of recyclable plastic resources and recycled materials;

3, the application of recycled materials lacks systematic research;

Seven: The performance of the recycled material is stable and the modification technology

This is also a key technical link that can improve the technological content of the plastic recycling industry. However, most plastic recycling companies do not have the technology and concepts in this regard. In the increasingly competitive real environment, the performance of recycled materials is stable and the modification technology is very high. important.

Eight: Chemical recovery method

In the past, plastic refinery, which was very hot, was still immature due to various reasons. Due to the large investment in equipment, it has been developing slowly in recent years.

Nine, the implementation of recyclable ideas in the design of plastic products

This is a key issue for the sustainable development of the plastics industry. It is a solution to the source problem, but it is rarely promoted.

Tenth, other

Among the top ten challenges, there are three most critical technologies: one: sorting and separation technology of plastics; two: non-polluting cleaning/cleaning technology; and three: value evaluation and application direction are also one of the key issues.

In order to provide practical help for industry companies in solving practical technical problems, the China Plastics Association’s Waste Plastics Specialty Committee held the second phase of the plastic recycling technology training class after the successful holding of the first session of the class, which targeted the above-mentioned practical work. The problem is that the training course is divided into two training courses: "Identification, sorting and price evaluation of waste plastics and recycled materials" and "Technology of modification and application of waste plastic granulation and recycled materials".

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Dear customer, I'm monica, 29 years old, customer service of LULU Toy Car Factory. Thank you for vist our product, sincerely hope to service for you. 
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