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Workshop
2024-10-02
CEN Workshop on characterizing polyvinyl butyral (PVB) recyclates: public consultation on draft CWA is open!

The CEN Workshop on ‘Characterizing polyvinyl butyral (PVB) recyclates’ was kicked off on 12 April 2024. The public commenting phase on the draft CWA is now open.

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Workshop
2024-03-04
CEN Workshop on characterizing polyvinyl butyral (PVB) recyclates

Laminated glass is obtained by bonding glass layers using a polymeric interlayer. One polymer used as interlayer is polyvinyl butyral (PVB). Up to now, most of the post-consumer PVB material in laminated glass is incinerated or landfilled, and only 9 % are recycled in secondary uses. Recycling of PVB presents several difficulties related with the contents of glass, humidity, mixing of compositions and polymer optical degradation.

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