The value of recycled polyester waste

In the past two months, the waste polyester used in the courtyard of the eastern suburb of Beijing Research Institute of Chemical Industry has become the focus of discussion. This issue, which has been a headache for the leadership of the hospital for many years, has now been profitable.

This batch of waste polyester material was left over from many years of experimentation, with many varieties, large quantities, lots of chaos, and poor quality. From the beginning of this year, Zhao Weijiang, the director of the experimental plant, led the employees of the base and began the hard work of recycling the used polyester.

There are more than a dozen of these used polyester light grades, with each product ranging from five to six barrels, and as many as several dozen barrels. Most of the signs have disappeared due to long-term open storage. This group of polyesters is quite different. Some of them have become dark red and have become thicker and have become paste-like. In order to find out the indicators of each barrel of polyester, Zhao Weijiang and the comrades of the technical department have spent a lot of time. Through careful analysis and statistics, the situation of the backlog of polyester is finally thoroughly understood.

They start with polyesters that are easier to recycle and can be used directly in production to design new products to meet new uses based on their specific specifications. The benefits of doing so not only recycled and used polyester, but also developed new products, opened up new markets, and added new economic growth points for companies. The new product UK2875 developed under this idea has the ability to enter the low-end market due to low production costs.

For those polyesters that have already developed and are basically scrapped, Zhao Weijiang and the comrades of the technical department have not given up. After testing, they found that after heating to a certain temperature, the polyester can be returned to the clear and transparent, so that this part of the polyester has been recycled. Reuse.

For those parts of the polyester where the initial response was not thorough enough and the indicators deviated from the standard, they conducted a polycondensation reaction again through tests to achieve or close to qualified indicators that could be used in low-end products. The original backlog of waste polyester in the hospital was nearly 90 tons, which was about 15 tons. Through the efforts of this period of time, there is less and less waste polyester, and more and more products are produced. This one-to-many change has created a new economic interest for companies that have used idle assets.