AI Insight
Researchers at Newcastle University have developed an electrically conductive reversible adhesive capable of bonding electronic components in a manner comparable to conventional solder. Unlike solder, which requires high-temperature processes and produces permanent bonds, this adhesive can be dissolved using acetone or an alkaline solution, allowing components to be separated cleanly. The technology builds on prior work by the same team on reversible adhesives for packaging applications, now extended to include electrical conductivity.
Why it matters
This adhesive could significantly reduce electronic waste by enabling easier disassembly, repair, and material recovery from discarded devices. It also introduces a more environmentally considerate alternative to soldering, using relatively benign solvents in the separation process.
A collaboration between electrical and chemical engineers at Newcastle University is responsible for a reversible glue that can change how we recycle electronic waste. The team has already demonstrated reversible adhesive technology with wide applicability in general packaging applications, but this new glue is electrically conductive. This means that it can join electronic components, just like solder does. Unlike solder, however, a simple wash with a green solvent like acetone, or using an alkaline solution, will allow the components to be separated for reuse or recycling.
Source: New reversible conductive glue could reshape electronics repair, recycling, and material recovery