Insulating Composites Made from Sulfur, Canola Oil, and Wool**
- 25 February 2021
- journal article
- research article
- Published by Wiley in ChemSusChem
- Vol. 14 (11), 2352-2359
- https://doi.org/10.1002/cssc.202100187
Abstract
An insulating composite was made from the sustainable building blocks wool, sulfur, and canola oil. In the first stage of the synthesis, inverse vulcanization was used to make a polysulfide polymer from the canola oil triglyceride and sulfur. This polymerization benefits from complete atom economy. In the second stage, the powdered polymer was mixed with wool, coating the fibers through electrostatic attraction. The polymer and wool mixture were then compressed with mild heating to provoke S−S metathesis in the polymer, which locks the wool in the polymer matrix. The wool fibers imparted tensile strength, insulating properties, and reduced the flammability of the composite. All building blocks are sustainable or derived from waste and the composite is a promising lead on next‐generation insulation for energy conservation.Keywords
Funding Information
- Australian Research Council (DP200100090)
- Royal Society
- Royal Society (IES\R3\170364)
This publication has 32 references indexed in Scilit:
- High strength, acid‐resistant composites from canola, sunflower, or linseed oils: Influence of triglyceride unsaturation on material propertiesJournal of Polymer Science, 2020
- Natural Fibers as Sustainable and Renewable Resource for Development of Eco-Friendly Composites: A Comprehensive ReviewFrontiers in Materials, 2019
- Valorisation of waste to yield recyclable composites of elemental sulfur and ligninJournal of Materials Chemistry A, 2019
- Preparation and processing of porous sulfur foams having low thermal conductivityRSC Advances, 2019
- Porous sulphur copolymer for gas-phase mercury removal and thermal insulationChemical Engineering Journal, 2018
- A review on current advances in the energy and environmental performance of buildings towards a more sustainable built environmentRenewable and Sustainable Energy Reviews, 2017
- Circular economy for the built environment: A research frameworkJournal of Cleaner Production, 2017
- A review of unconventional sustainable building insulation materialsSustainable Materials and Technologies, 2015
- Application of agro-waste for sustainable construction materials: A reviewConstruction and Building Materials, 2013
- Sulfur Foam and Commercial-Scale Field Application EquipmentPublished by American Chemical Society (ACS) ,1978