Three British companies have developed a 90% recyclable and reusable circuit board, whose components can be easily separated by soaking in hot water. Funded by the UK government’s Technology Strategy Board with a view to help industry conform to European electronic waste regulation, the National Physical Laboratory (NPL), In2Tec and Gwent Electronic Materials have devised an adhesive that helps manufacturers take apart electronic circuit boards and reuse their components to make new components. They call it ReUse – Reusable, Unzippable, Sustainable Electronics.
The result was a new adhesive and ink system, which allows the team to put components onto a thermoplastic substrate with a conductive adhesive and make a circuit. A substrate is a solid onto which another solid is applied and that solid adheres to the first. A thermoplastic is something quite pliable at high temperatures but cools down to a rigid solid. The thermoplastic substrate produced by the team can be recycled.