PET Oligomer Waste to Modify CAP Characteristics

Abstract

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—5, 10 and 20 wt%—as 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.

Share and Cite:

Mendes, L. , Dias, M. , Pereira, P. and Albuquerque, L. (2012) PET Oligomer Waste to Modify CAP Characteristics. Materials Sciences and Applications, 3, 575-579. doi: 10.4236/msa.2012.38082.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] V. Sinha, M. Patel and J. Patel, “Pet Waste Management by Chemical Recycling: A Review,” Journal of Polymers and the Environment, Vol. 18, No. 1, 2010, pp. 8-25. doi:10.1007/s10924-008-0106-7
[2] C. Piotr, “Synthesis and Modification of Epoxy Resins Using Recycled Poly(Ethylene Terephthalate),” Polymers for Advanced Tecnologies, Vol. 20, No. 3, 2008, pp. 183- 193.
[3] I. B. Grudnikov, E. V. Ippolitov and Y. I. Grudnikova, “Asphalt Production Technology. From Engineering Art to Science,” Chemistry and Technology of Fuels and Oils, Vol. 40, No. 6, 2004, pp. 370-381. doi:10.1007/s10553-005-0004-9
[4] M. C. C. Lucena, S. A. Soares and J. B. Soares, “Charac- terization and Thermal Behavior of Polymer-Modified Asphalt,” Materials Research, Vol. 7, 2004, pp. 529-534. doi:10.1590/S1516-14392004000400004
[5] A. S. Shirkunov, V. G. Ryabov, A. V. Kudinov, A. N. Nechaev and A. S. Degtyannikov, “Correlation of the Adhesive Properties of Petroleum Paving Asphalts and High-Melting Paraffin Content,” Chemistry and Technology of Fuels and Oils, Vol. 47, No. 1, 2011, pp. 48-52. doi:10.1007/s10553-011-0255-6
[6] M. G. Morales, P. Partal and F. J. Navarro, “Viscous Properties and Microstructure of Recycled EVA Modified Bitumen,” Fuel, Vol. 83, No. 1, 2004, pp. 31-38. doi:10.1016/S0016-2361(03)00217-5
[7] C. A. Cáceres and S. V. Canevarolo, “Scission in the Thermo Mechanical Degradation of Polystyrene under Multiple Extrusions,” Polímeros, Vol. 18, 2008, pp. 348- 352.
[8] L. C. Mendes, M. L. DIAS and T. C. Rodrigues, “Chemical Recycling of PET Waste with Multifunctional Pentaerythrytol in the Melt State,” Journal of Polymers and the Environment, Vol. 19, No. 1, 2011, pp. 254-262. doi:10.1007/s10924-010-0276-y
[9] H. Jin, G. Gao and Y. Zhang, “Improved Properties of Polystyrene Modified Asphalt through Dynamic Vulcanization,” Polymer Testing, Vol. 21, No. 6, 2001, pp. 633-640. doi:10.1016/S0142-9418(01)00135-0
[10] X. Lu and U. Isacsson, “Modification of Road Bitumens With Thermoplastic Polymers,” Polymer Testing, Vol. 20, No. 1, 2001, pp. 77-86. doi:10.1016/S0142-9418(00)00004-0
[11] X. Lu and U. Isacsson, “Influence of Styrene-Butadiene- Sty-Rene Polymer Modification on Bitumen Viscosity”, Fuel, Vol. 76, No. 14-15, 1997, pp. 1353-1359. doi:10.1016/S0016-2361(97)00144-0
[12] S. Alonso, L. M. Torres, R. Zitzumbo and F. Avalos, “Rheology of Asphalt and Styrene-Butadiene Blends,” Journal of Materials Science, Vol. 45, No. 10, 2010, pp. 2591-2597. doi:10.1007/s10853-010-4230-0
[13] L. M. C. Cavalcante, S. S. Aguiar and S. J. Barbosa, “Characterization and Thermal Behavior of Polymer- Modified Asphalt,” Materials Research, Vol. 7, 2004, pp. 529-534. doi:10.1590/S1516-14392004000400004
[14] M. C. Brum and M. L. Dias, “Processo de Produ??o de Asfalto Modificado,” Brasileira Patent No. 0601920-0, 2006.
[15] M. C. Brum, M. L. Dias and C. R. Nascimento, “Processo de Obten??o de Olig?meros de Poli(Tereftalato de Etileno),” Brasileira Patent No. 0605201-0, 2006.
[16] U. L. F. Isacsson and X. Lu, “Characterizaion of Bitumens Modified with SEBS, EVA and EBA Polymers,” Journal of Materials Science, Vol. 34, No. 15, 1999, pp. 3737-3745. doi:10.1023/A:1004636329521
[17] P. S. C. Pereira, L. C. Mendes, L. Sirelli and M. L. Dias, “Influence of Cobalt Complex on Thermal Properties of Poly(Ethylene Terephthalate)/Polycarbonate Blend,” Journal of Thermal Analysis and Calorimetry, Vol. 87, No. 3, 2007, pp. 667-671. doi:10.1007/s10973-006-7873-y
[18] P. S. C. Pereira, L. C. Mendes and R. E. R. Abrigo, “Changes in Properties of PET/PC Blend by Catalyst and Time,” International Journal of Polymeric Materials, Vol. 57, No. 5, 2008, pp. 494-505. doi:10.1080/00914030701816045
[19] L. C. Mendes and P. S. C. Pereira, “Optical Microscopy AS A Tool to Correlate Morphology and Thermal Properties of Extruded PET/PC Reactive Blends,” Materials Sciences and Applications, Vol. 99, No. 2, 2011, pp. 1033-1040. doi:10.1007/s10973-009-0211-4
[20] ASTM D1876-08, “Standard Test Method for Peel Resistance of Adhesives (T-Peel Test),” Annual Book of ASTM Standards, 1995.

Copyright © 2024 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.