{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/72809"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/72809","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Dispersion of graphene nanoplatelets in water with surfactant and reinforcement of mortar with graphene nanoplatelets","abstract":"This research investigated the dispersion behavior of graphene nanoplatelets (GNPs) in water with water reducing admixture (WRA), a type of surfactant. The dosage of GNPs was fixed at 0.2wt% of water, and the dosage of the WRA functioned as the controlled variable. Sedimentation experiments qualitatively characterized the stability of the dispersion. The team characterized the time evolution of particle size with dynamic light scattering (DLS). Ultraviolet-visible spectroscopy (UV-vis) measured the time evolution of the opacity of the suspension. Scanning electron microscopy (SEM) gave a qualitative set of micrographs of the particles taken out of the suspension. The team characterized the surface forces with point of zero charge (PZC) experiments. This research has the potential to improve the future application of GNPs to composite materials. The author also carried out mechanical testing. Notched beams were prepared and tested in three-point bending. The data were then analyzed in keeping with the two-parameter fracture model. The mechanical results were inconclusive, but they suggested a path forward to continued research.","abstract_html":"This research investigated the dispersion behavior of graphene nanoplatelets (GNPs) in water with water reducing admixture (WRA), a type of surfactant. The dosage of GNPs was fixed at 0.2wt% of water, and the dosage of the WRA functioned as the controlled variable. Sedimentation experiments qualitatively characterized the stability of the dispersion. The team characterized the time evolution of particle size with dynamic light scattering (DLS). Ultraviolet-visible spectroscopy (UV-vis) measured the time evolution of the opacity of the suspension. Scanning electron microscopy (SEM) gave a qualitative set of micrographs of the particles taken out of the suspension. The team characterized the surface forces with point of zero charge (PZC) experiments. This research has the potential to improve the future application of GNPs to composite materials. The author also carried out mechanical testing. Notched beams were prepared and tested in three-point bending. The data were then analyzed in keeping with the two-parameter fracture model. The mechanical results were inconclusive, but they suggested a path forward to continued research.","abstract_has_math":false,"creators":["Wotring, Erik"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Civil Engineering","degree_department":null,"school":null,"contributors":["Mondal, Paramita"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-01-21T19:48:25Z","date_published":"2015-01-21T19:48:25Z","updated_at":"2026-07-22T22:26:07Z","subjects":["graphene","nanoplatelet","water reducing admixture","superplasticizer","mortar","two parameter fracture model","dynamix light scattering (DLS)","ultraviolet-visible spectroscopy (UV-vis)","scanning electron microscopy (SEM)","sedimentation","point of zero charge (PZC)"],"languages":["en"],"rights":["Copyright 2014 Erik Wotring"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/72809","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mondal, Paramita"]},{"key":"dc:creator","label":"Author","values":["Wotring, Erik"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-01-21T19:48:25Z","2014-12","2015-01-21"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civil Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["graphene","nanoplatelet","water reducing admixture","superplasticizer","mortar","two parameter fracture model","dynamix light scattering (DLS)","ultraviolet-visible spectroscopy (UV-vis)","scanning electron microscopy (SEM)","sedimentation","point of zero charge (PZC)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2014 Erik Wotring"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/72809"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This research investigated the dispersion behavior of graphene nanoplatelets (GNPs) in water with water reducing admixture (WRA), a type of surfactant. The dosage of GNPs was fixed at 0.2wt% of water, and the dosage of the WRA functioned as the controlled variable. Sedimentation experiments qualitatively characterized the stability of the dispersion. The team characterized the time evolution of particle size with dynamic light scattering (DLS). Ultraviolet-visible spectroscopy (UV-vis) measured the time evolution of the opacity of the suspension. Scanning electron microscopy (SEM) gave a qualitative set of micrographs of the particles taken out of the suspension. The team characterized the surface forces with point of zero charge (PZC) experiments. This research has the potential to improve the future application of GNPs to composite materials. The author also carried out mechanical testing. Notched beams were prepared and tested in three-point bending. The data were then analyzed in keeping with the two-parameter fracture model. The mechanical results were inconclusive, but they suggested a path forward to continued research.","Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2014-12-08T17:52:46Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Wotring_Erik.pdf: 1440869 bytes, checksum: 486fbe5de0fc4a83099cc3c957d98c0d (MD5)","Made available in DSpace on 2015-01-21T19:48:25Z (GMT). No. of bitstreams: 1 Erik_Wotring.pdf: 2992099 bytes, checksum: c76d55a3851bb84fae1211d51e999185 (MD5)"]},{"key":"dc:title","label":"Title","values":["Dispersion of graphene nanoplatelets in water with surfactant and reinforcement of mortar with graphene nanoplatelets"]}]}],"canonical_facts":{"dc:contributor":["Mondal, Paramita"],"dc:creator":["Wotring, Erik"],"dc:date":["2015-01-21T19:48:25Z","2014-12","2015-01-21"],"dc:description":["This research investigated the dispersion behavior of graphene nanoplatelets (GNPs) in water with water reducing admixture (WRA), a type of surfactant. The dosage of GNPs was fixed at 0.2wt% of water, and the dosage of the WRA functioned as the controlled variable. Sedimentation experiments qualitatively characterized the stability of the dispersion. The team characterized the time evolution of particle size with dynamic light scattering (DLS). Ultraviolet-visible spectroscopy (UV-vis) measured the time evolution of the opacity of the suspension. Scanning electron microscopy (SEM) gave a qualitative set of micrographs of the particles taken out of the suspension. The team characterized the surface forces with point of zero charge (PZC) experiments. This research has the potential to improve the future application of GNPs to composite materials. The author also carried out mechanical testing. Notched beams were prepared and tested in three-point bending. The data were then analyzed in keeping with the two-parameter fracture model. The mechanical results were inconclusive, but they suggested a path forward to continued research.","Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2014-12-08T17:52:46Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Wotring_Erik.pdf: 1440869 bytes, checksum: 486fbe5de0fc4a83099cc3c957d98c0d (MD5)","Made available in DSpace on 2015-01-21T19:48:25Z (GMT). No. of bitstreams: 1 Erik_Wotring.pdf: 2992099 bytes, checksum: c76d55a3851bb84fae1211d51e999185 (MD5)"],"dc:identifier":["http://hdl.handle.net/2142/72809"],"dc:language":["en"],"dc:rights":["Copyright 2014 Erik Wotring"],"dc:subject":["graphene","nanoplatelet","water reducing admixture","superplasticizer","mortar","two parameter fracture model","dynamix light scattering (DLS)","ultraviolet-visible spectroscopy (UV-vis)","scanning electron microscopy (SEM)","sedimentation","point of zero charge (PZC)"],"dc:title":["Dispersion of graphene nanoplatelets in water with surfactant and reinforcement of mortar with graphene nanoplatelets"],"dc:type":["text"],"thesis:degree_discipline":["Civil Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:07Z"}