PMID- 33264897 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201203 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 403 DP - 2021 Feb 5 TI - Physical and thermal insulation properties of the composites based on seawater-neutralised bauxite residue. PG - 123723 LID - S0304-3894(20)31709-X [pii] LID - 10.1016/j.jhazmat.2020.123723 [doi] AB - The objective of this study is to evaluate the possibility of using bauxite residue (BR), which is a highly hazardous waste, as a filler in thermoset polymer matrices for applications in insulating construction materials to minimise heat loss in buildings. Unsaturated polyester resin (UPR) blended with the seawater-neutralised BR in a ratio of 0-60 vol.% was transformed into a solid via a crosslinking process at room temperature. The pristine polyester and BR-UPR composites were characterised to ascertain their structural, physical and thermal properties. The results indicate that BR is a good filler that can be used with UPR to develop thermal insulation/construction materials. The UPR composite containing 40 vol.% BR is considered to be the optimum mixture with respect to the tested physical and thermal properties because it utilises a large amount of filler and shows promising thermal insulation characteristics with a thermal conductivity of 0.096 W/(m∙K), a thermal diffusivity of 0.161 mm(2)/s, a 24-h water retention of 0.15 % and a bulk density of 1484 kg/m(3). Furthermore, the thermal stability of the prepared composites is positively influenced by the incorporation of BR. The overall weight loss upon heating to 900 degrees C decreased from 99.85 % (pristine polyester) to 46.68 % (60 vol.% BR composite). CI - Copyright (c) 2020 Elsevier B.V. All rights reserved. FAU - Abu-Jdayil, Basim AU - Abu-Jdayil B AD - Chemical & Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates. Electronic address: babujdayil@uaeu.ac.ae. FAU - Adi, Maissa AU - Adi M AD - Chemical & Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates. FAU - Al Ghaferi, Fatima AU - Al Ghaferi F AD - Chemical & Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates. FAU - Al Yahyaee, Sara AU - Al Yahyaee S AD - Chemical & Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates. FAU - Al Jabri, Maryam AU - Al Jabri M AD - Chemical & Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates. LA - eng PT - Journal Article DEP - 20200819 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 SB - IM OTO - NOTNLM OT - Bauxite residue OT - Construction composite OT - Hazardous waste OT - Thermal insulation OT - Unsaturated polyester EDAT- 2020/12/04 06:00 MHDA- 2020/12/04 06:01 CRDT- 2020/12/03 01:02 PHST- 2020/05/10 00:00 [received] PHST- 2020/07/20 00:00 [revised] PHST- 2020/08/13 00:00 [accepted] PHST- 2020/12/03 01:02 [entrez] PHST- 2020/12/04 06:00 [pubmed] PHST- 2020/12/04 06:01 [medline] AID - S0304-3894(20)31709-X [pii] AID - 10.1016/j.jhazmat.2020.123723 [doi] PST - ppublish SO - J Hazard Mater. 2021 Feb 5;403:123723. doi: 10.1016/j.jhazmat.2020.123723. Epub 2020 Aug 19.