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Substancje bitumiczne pochodzenia węglowego, ze względu na dużą zawartość wielopierścieniowych węglowodorów aromatycznych o właściwościach kancerogennych, w ostatnich latach znajdują praktyczne zastosowanie jedynie w przemysłach elektrodowym, grafitowym i materiałów ogniotrwałych. Ich modyfikacja dodatkami polimerów stwarza możliwości poprawy jakości między innymi paków węglowych i rozszerzenia zakresu...
Results are described of the studies intended to establish the effect of the PET process glycol recovery step waste fraction composed of terephthalates and mono and diethylene glycols used as additive, on the thermorheological properties of coal tar pitch and on the reduction of benzo[a]pyrene (B[a]P) content in the pitch. When added to coal tar pitch, the glycol recovery residue was found to plastify...
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