General new plastic materials R & D and classification of traditional materials

The world is developing rapidly, and the science of plastic materials is progressing. Some emerging technologies emerge endlessly. Traditional and innovative plastic materials are what we need to face in the application.

General new plastic materials R & D

University of Massachusetts Amherst Paul J. Dauenhauer led research team found that the new method, production of biomass plastic, low-cost. Most of the biomass as a raw material can be to 75% the yield of xylene (biomass plastic raw materials), the study results were published in the journal of the American Chemical Society (ACS), the “catalyst”.

Xylene was used to produce PET (polyethylene terephthalate) plastic, the scope of uses including many products. Such as carbonated beverage bottles, food packaging, synthetic clothing, and even auto parts. At present, the plastics industry is oil as raw material to produce para-xylene.

The new method is a renewable way of biomass raw materials of the chemical. thereby producing marked with the triangular recycling logo “1 #” plastic products. This method uses a molecular sieve catalyst, through the three-step reaction can be the conversion of glucose to para-xylene in the high-temperature bioreactor. The nanostructure of the catalyst has a great effect on the biological response, the catalyst of this particular design is the key to success. it has been a series of optimization improvements, used to promote the reaction of p-xylene and improve yield.

This is a major breakthrough, because of the other method for the production of renewable xylene, or expensive (eg fermentation), or low reaction efficiency, low production yield. In the future, the method can be further optimized to improve the yield of para-xylene and reduce costs. This finding is part of the innovative energy catalytic center (CCEI), breakthrough research to the manufacture of biofuels and chemicals from lignocellulosic biomass program.

Traditional plastic materials classification

There are 2 kinds of classification methods, in accordance with the possibility of recycling is divided into

1, thermoplastic plastic material.

Means can once again recycled plastic. Such as ABS, PPS, PE, PS,.

thermosetting plastics that it can recycle the heat after molding can not be recovered.

Such as phenolic resin, urea resin. In accordance with the classification of use:

General plastic field: the use of general plastics in daily life. In recent years, pointing to the general plastic changes generally refers to the pure resin, not through enhanced or modified plastics, such as ordinary ABS, PP, PE, PS, PC,.

2, engineering plastic.

Refers to the high-performance plastics used in industry and other high-end applications. The more recognized industry argument is, plus fiber, fireproof, high-temperature resistance, chemical corrosion resistance, weather resistance, and so on.

For example, LCP, PPS, PEEK, PTFE, and so on. That is general plastic material such as ABS, PP, PE, etc. such as Fruit through the modification, the formation of the ABS fiber, ABS fire, ABS heat resistance, we also called engineering plastic material. The same applies to the PP, PE, PS, and other plastic materials.