NIR Spectral Imaging for Industrial Detection of Flame-Retardant Additives in Polymers

摘要

Most commercial polymers will inflame easily in the presence of oxygen, requiring flame retardants to be added to reduce this danger. Recycling of polymers containing flame retardants is problematic for a number of reasons. Polymers are usually recycled in one of two ways, through (i) material recycling or (ii) thermal recycling, i.e. they are burned as fuel. Flame retardants are problematic in both cases. For these reasons, the EC waste guidelines require that in particular polymers containing halogenated flame retardants (e.g. from electrical or electronic products) are recycled separately.