Views: 7 Author: Site Editor Publish Time: 2022-04-20 Origin: Site
In recent years, engineering plastics extruders have become more and more widely used and have a very important role to play in plastic recycling. We all know that plastics can be quite harmful to the environment, but we really can't say exactly what the hazards are, and they are precisely the reasons why engineer plastic extruders are used to recycle plastics.
Here is the list
Non-degradable plastics
Degradable Plastics
In fact, the plastics we use in our life can be recycled, the most used plastic bags are made of the most difficult to degrade plastic polyethylene or "PE", this material can be made into clean fuel or used to generate electricity from waste, we eat with meal boxes and take-out boxes are made of polypropylene or "PP". "After recycling, it can be made into decorative materials for construction projects, and most of the beverage bottles we use for drinking are made of polyester or "PET". The majority of beverage bottles, after recycling, are taken to chemical fiber factories to produce polyester and polyester clothes.
These non-biodegradable plastic products, in the natural environment, takes at least a hundred years to degrade! And because of the cost of recycling, many plastic products are not recycled, or harmlessly treated, and are left in the natural environment. As a result, there is more and more plastic waste inside rivers and oceans, because non-degradable plastic pollutes the environment.
Therefore, in order to protect the environment, many regions have introduced "plastic restriction orders", which also make biodegradable plastics due to market demand. According to statistics, in 2019, the output of plastic products in China was as high as 81.84 million tons, including 30,000 tons of plastic straws, and the per capita use of plastic straws was more than 30, but the output of biodegradable plastics only accounted for less than 1% of the total output of plastic products. In addition to PLA, scientists have developed many kinds of biodegradable plastic materials. As early as the 1970s, foreign scientists started to develop biodegradable plastics, mainly photodegradable plastics, with the aim of solving the environmental pollution problem caused by plastic waste, especially disposable plastic packaging products. Later, scientists also developed plastics that can be photodegraded and biodegraded at the same time. The degradation process of biodegradable plastics is mainly through three methods: biodegradation, photodegradation and chemical degradation, with photodegradation and chemical degradation often taking place simultaneously and promoting each other, while biodegradation is more likely to occur after photodegradation. Biodegradation is more likely to occur after the photodegradation process.
Nowadays, the most widely used biodegradable materials in the market are PLA and PBAT, both of which can be degraded completely harmlessly in the natural environment, so they are suitable for straws, plastic bags, etc. I believe that in the future, with the technological development of biodegradable plastics and the improvement of the recycling mechanism of non-biodegradable plastics, the problem of plastic waste polluting the environment can be solved. solved by human beings.
Whether for non-biodegradable plastics or degradable plastics, the engineer plastic extruder provided by our company can recycle them.Nanjing Haisi Extrusion Equipment Co., Ltd. is a high-tech enterprise consisting of a team with many years of experience in R&D, design, manufacturing technology, sales, and service in the extruder industry. If you are interested in our products, welcome to contact us!
