Polish version
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New generation engineering polymers from PET waste

This innovative, ecologic technology, counted among „top 10 export hits” – most interesting Polish technical achievements in recent years, considerably reduces an overflow of non-degradable environmentally waste. It allows to produce engineering polymers used as material for practically all technical products.

Application of the new polymer in the electric and electronic appliance sector includes high precision bearings, levers, cog wheels and device housings with specified mechanical and electrical functions, e.g. office devices, computers, monitors, printers, cooking equipment, light bowls, photographic accessories and also electric sockets, plugs and capacitor cores (resistant to creeping current). Automotive industry can make use of the new polymer to manufacture such products as fuel system parts (fuel pumps and filters) or parts of braking system and air conditioners. This polymer can also be used to produce sports equipment, e.g. ski bindings and sailing gear.


A brief description of the technology

The technology utilizes the method of reactive extrusion using a modifier, facilitating creation of compatible heterogenic structures with enhanced adhesion at phase boundaries. Processing in a co-rotating twin-screw extruder results in chemical reactions between functional groups of processed polymers and functional groups of the modifier, creating permanent covalent or ionic bonds. Hence, the resulting polymer presents properties of engineering polymers.


Advantages of the technology offered

New generation engineering polymers made of secondary PET materials are equivalent and simultaneously cheap replacements of conventional polymers like poly(butylene terephthalate), high impact polystyrenes or reinforced with glass fiber species of polyamide 6, polyamide 66 or polycarbonates. They are also competitive to products of world leading companies.


Equipment

A co-rotating twin-screw extruder.


Patents

Patent application No P-183 370 (1996) „Thermoplastics recycling method”.


Market competitiveness

At present no engineering polymers from PET bottles are produced in Poland.


References

Awards received on prestigious international invention and innovation exhibitions: 3 gold medals (Geneva 2000, Brussels 2002), including a WIPO gold medal for a woman inventor (Brussels 2002), 2 silver medals (Nuremberg 1999, Gdañsk 2001), a distinction in the VIth edition of the competition „Polish Product of the Future” in the technology category, Vth International Competition „EKO-2003” on solutions in the area of environment protection and Grand Prix of the VIth International Plastic Fair PTS 2003 (Warsaw 2003).


Information

Dr. Regina Jeziórska, D.Sc., Eng., prof. of ICRI

phone: + 48 22 568 24 91, fax: + 48 22 568 21 84