%0 Journal Article
%T PET Oligomer Waste to Modify CAP Characteristics
%A L. C. Mendes
%A M. L. Dias
%A P. S. C. Pereira
%A L. M. R. Albuquerque
%J Materials Sciences and Applications
%P 575-579
%@ 2153-1188
%D 2012
%I Scientific Research Publishing
%R 10.4236/msa.2012.38082
%X To develop an improved method of reusing poly(ethylene terephthalate) (PET) waste in the production chain, it was chemically modified with pentaerythritol (PENTE), resulting in PET/PENTE (60/40) oligomer. This was added to petroleum asphalt cement (CAP) in different proportions¡ª5, 10 and 20 wt%¡ªas a modifier of bitumen characteristics. The mixture was evaluated by thermogravimetry (TG/DTG), differential scanning calorimetry (DSC), infrared spectroscopy (FT-IR), optical microscopy (OM) and the adhesion-peel test. The oligomer enhanced substantially the asphalt thermal stability-Tonset. OM images showed strong compatibility between components and PET¡¯s amorphization. PET oligomer increased CAP¡¯s wettability and the mixture presented cohesive fracture through the peel test. The mixture has excellent potential as paving material.
%K PET Waste
%K Pentaerythritol
%K CAP
%K Recycling
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=21807