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6. Other products
6.1 Expandable polystyrene without dispersion of volatile organic compounds (VOCs)
To date, the main blowing agent for expanding polystyrene beads is pentane. Increasing pentane emissions are a growing concern in North America (Canada and USA) and Europe. Legislation to limit these VOC emissions is already planned in Switzerland, Austria and Sweden.
A new patented process has just been developed by TEUBERT Maschinenbau and Nova Chemicals (EUREKA project EI 23683 VOC FREE EPS). The new patented process consists in creating a molecular bond that encloses starch in a polystyrene "capsule". The starch bound by the chemical process absorbs micro-droplets of water, which form a safer, more environmentally-friendly blowing agent inside the beads.
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Bonding of EPS
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Syndicat National des Plastiques Alvéolaires – SNPA [email protected]http://www.snpa.fr
...Economic data
The global EPS market totalled 3.75 million tonnes in 2004, of which 46% was used in packaging.
The breakdown of the insulation and packaging markets varies from one continent to another. These are entirely representative of building traditions (whether or not to insulate) and the importance of industries using EPS packaging. In Japan, for example, a leader in the electronics sector and the world's...
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