European PVC recycling industry development trend briefing
At the recent Identiplast meeting, the organization published a report on PVC recycling last year: a total of 19,4950 tons of PVC was recycled in 2008, a 30% increase from 2007. Wasted PVC is recycled through Recovinyl. In 2008, PVC recovered from PVC pipes rose by 20% to 22,000 tons. However, the recycling of PVC profiles has nearly doubled, approaching 80,000 tons. At the same time, the number of PVCs that used other products instead of lead stabilizers increased by 50%, reaching the target originally set in 2010.
Jean-Pierre DeGrève, manager of Vinyl2010, said: "We have fulfilled our commitment to reduce the use of lead stabilizers, which is a microcosm of our work."
Between 2000 and 2008, Europe reduced its use of lead stabilizer by 52%, with more than 66,000 tons. During the same period, the use of calcium stabilizers increased by 50,000 tons.
Vinyl2010's next goal is to phase out the use of lead stabilizers in 2015, including the 27 member states of the European Union.
Not only is Europe reducing lead stabilizer use, but at the end of July, US material supplier TeknorApex announced that it will stop selling lead stabilizers for wires and cables. MikePatel, industry director at TeknorApex, said: "The introduction of new replacement stabilizers alone will not solve the problem of lead stabilizers. The big challenge is to develop a stable system for PVC wire and cable that can work with other components. â€
In addition to the management meeting, European companies are also making their own contribution to reducing the use of lead stabilizers. For example, the Baerlocher company in Italy has developed a series of “almost environmentally friendly†PVC stabilizers. Covers the application of calendered polyvinyl chloride plastics and plastisols. In addition, the company has developed a new generation of solid calcium and zinc products for hard calendering products and PVC blown film products.
Arkema has developed a range of propylene impact modifiers for PVC door and window profiles. Durastrength360 is the product of this series. Durastrength360 reduces the use of acrylic impact modifier by up to 15% in PVC formulations, enabling door and window profile manufacturers to increase productivity and provide better economics.
In addition to the high-elasticity external Durastrength360 can also help reduce the frequency of repair and cleaning of extrusion equipment and increase the speed of production profiles.
According to Arkema, this new technology platform has achieved great success in Eastern European countries.
Chelsea Building Products, a US subsidiary of the Belgian chemical and plastics processing group Tessenderlo, has developed a new type of powerful PVC doors and windows. Its proprietary "PVC composite" can be used instead of metal reinforcement by extrusion.
The company claims that the product offers the same advantages as metal reinforcement and has no constraints or restrictions on steel and aluminum. It is said to be filled with minerals and is currently being applied for.
ChelseaBuildingProducts uses new products in buildings in the United States
Chelsea claims that the composite PVC reinforcement has 730 times the thermal performance of aluminum and 191 times that of steel. The material is fully filled and reduces air convection. Condensation reactions - which can cause frost in aluminum and rust in steel, have limited impact on the composite reinforcement.
At the same time, the structural characteristics of the product are similar to aluminum, and the mold standard is five times that of the PVC standard. A spokesperson for the company said that the composite PVC reinforced modified material provides strength and rigidity and allows for void-free filling.
Noise reduction, enjoy a quiet life
Polypipe is Europe's largest supplier of piping systems solutions, using the principles of terrain and acoustics to develop DB12 piping systems to help British residents enjoy a quiet life. The system has been used to build soil pipelines and waste drainage channels to prevent the spread of noise.
MarkRadcliffe of the Polypipe R&D Center said: "We have used this system in many ways and have achieved good results. This system has a lot of market space, such as hotels, apartments and schools, where the requirements for sound insulation are Very high, our three-layer structure meets noise standards and meets fire protection standards. Currently, the application range of three-layer sound insulation piping system is expanding.
PVC molecular orientation technology
Molecor has improved the molecular orientation technology of PVC pipes.
Molecor demonstrated the technology at NPE in the United States, saying that many improvements have been made in the production system.
The company said: on the one hand to improve the flexibility of PVC pipe, so that the extruder can produce PVC-O pipe, other improvements include the system can be completely dry, can be matched with the traditional extruder and improve energy efficiency.
The PVC-O pipe developed by molecular orientation technology has high water pressure bearing capacity, extremely small pressure loss, and the wall thickness is significantly reduced, thereby reducing weight and facilitating transportation and installation costs. This equipment can be incorporated into any pipe production line for PVC-O pipe production.
Molecular orientation technology can be used to impart properties to plastic tubes such as excellent impact resistance, high crack resistance, high rigidity and fatigue resistance, response to external loads, and extremely high flex resistance.
Citing data from a magazine, South African engineer Mike Osry calculated the compressive capacity of PVC-O over a 50-year lifespan compared to PVC or PVC-M without molecular orientation (modified with chlorinated polyethylene and acrylic) The material is 80% better and four times better than the PE100.
About PVC-O: Biaxially oriented polyvinyl chloride (PVC-O) pipe is a pipe made by a special orientation plus 22212 process. The process is to axially stretch the PVC-U pipe produced by extrusion. And radial stretching, so that the long-chain PVC molecules in the pipe are arranged in a biaxial direction, and the new PVC pipe with high strength, high toughness, high impact resistance and fatigue resistance is obtained, and the performance is far superior to ordinary PVC-U pipe.
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