Rodrigo Álvarez-Barajas
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Rodrigo Álvarez-Barajas has a total of 10 co-authors. Here are the top co-authors by number of shared publications:
- Peotro Partal
Pro2TecS-Chemical Process and Product Technology Research Centre, Department of Chemical Engineeing, ETSI, Campus de “El Carmen”, University of Huelva, 21071 Huelva, Spain
4 shared publications Antonio A. Cuadri
2 shared publications- Antonio Abad Cuadri
Pro2TecS-Chemical Process and Product Technology Research Centre, Department of Chemical Engineering, ETSI, Campus de “El Carmen”, Universidad de Huelva, 21071 Huelva, Spain
2 shared publications Clara Delgado-Sánchez
2 shared publications- Adrián Tenorio-Alfonso
University of Huelva
1 shared publication C. Delgado-Sánchez
1 shared publication
Latest Publications
- Open Access
- 2 April 2026
- Published by Elsevier in Construction and Building Materials
- Vol. 522
Stepwise preparation of lignin-modified bio-binders via cationic lignin-stabilized emulsification
- 2 April 2026
- Published by Elsevier in Construction and Building Materials
- Vol. 522
Open AccessStepwise preparation of lignin-modified bio-binders via cationic lignin-stabilized emulsification
- Open Access
- 21 December 2023
- Published by Elsevier in Polymer Testing
- Vol. 130
Bio and waste-based binders with hybrid rubberized-thermoplastic characteristics for roofing
- 21 December 2023
- Published by Elsevier in Polymer Testing
- Vol. 130
Open AccessBio and waste-based binders with hybrid rubberized-thermoplastic characteristics for roofing
- Open Access
- 6 February 2023
- Published by Elsevier in Journal of Cleaner Production
- Vol. 393
Non-bituminous binders formulated with bio-based and recycled materials for energy-efficient roofing applications
- 6 February 2023
- Published by Elsevier in Journal of Cleaner Production
- Vol. 393
Open AccessNon-bituminous binders formulated with bio-based and recycled materials for energy-efficient roofing applications
- Open Access
Bioethanol Production and Alkali Pulp Processes as Sources of Anionic Lignin Surfactants
Lignin is an abundant biopolymer with potential value-added applications that depend on biomass source and fractioning method. This work explores the use as emulsifiers of three native lignin-rich product coming from industrial bioethanol production and alkali or Kraft pulping. In addition to their distinctive characteristics, the different molecular organization induced by emulsification pH is expected to interact in various ways at the water-oil interface of the emulsion droplets. Initially, model oil-in-water (O/W) emulsions of a silicone oil will be studied as a function of lignin source, disperse phase concentration and emulsification pH. Once stablished the effect of such variables, emulsion formulations of three potential bitumen rejuvenators (waste vegetable cooking oil, recycled lubricating oil and a 160/220 penetration range soft bitumen). Droplet size distribution, Z-potential and viscous tests conducted on model emulsions have shown that emulsification pH strongly affects stabilization ability of the lignins tested. Regarding bitumen rejuvenators, lignin emulsification capability will be affected by surfactant source, pH and, additionally, by the dispersed phase characteristics. Lower Z-potential values shown by KL at pH 9 and 11 seem to facilitate emulsification of the less polar disperse phases formed by RLUB and bitumen. In any case, lower particle size and higher yield stress values were found for both bioethanol-derived lignins emulsifying RVO and RLUB at pH 13, which are expected to exhibit a longer stability.
Open AccessBioethanol Production and Alkali Pulp Processes as Sources of Anionic Lignin Surfactants
Lignin is an abundant biopolymer with potential value-added applications that depend on biomass source and fractioning method. This work explores the use as emulsifiers of three native lignin-rich product coming from industrial bioethanol production and alkali or Kraft pulping. In addition to their distinctive characteristics, the different molecular organization induced by emulsification pH is expected to interact in various ways at the water-oil interface of the emulsion droplets. Initially, model oil-in-water (O/W) emulsions of a silicone oil will be studied as a function of lignin source, disperse phase concentration and emulsification pH. Once stablished the effect of such variables, emulsion formulations of three potential bitumen rejuvenators (waste vegetable cooking oil, recycled lubricating oil and a 160/220 penetration range soft bitumen). Droplet size distribution, Z-potential and viscous tests conducted on model emulsions have shown that emulsification pH strongly affects stabilization ability of the lignins tested. Regarding bitumen rejuvenators, lignin emulsification capability will be affected by surfactant source, pH and, additionally, by the dispersed phase characteristics. Lower Z-potential values shown by KL at pH 9 and 11 seem to facilitate emulsification of the less polar disperse phases formed by RLUB and bitumen. In any case, lower particle size and higher yield stress values were found for both bioethanol-derived lignins emulsifying RVO and RLUB at pH 13, which are expected to exhibit a longer stability.