Researchers in South Korea have made a breakthrough in adhesive technology with an eco-friendly, smart adhesive derived from biomass materials. This innovative adhesive responds to light, making it not only reusable but also suitable for a variety of applications.
Adhesives play a significant role in many industries, from aerospace to construction. Yet, traditional options often use harmful petroleum-based chemicals that can degrade soil and water quality. This has sparked a need for safer alternatives.
Professor Kwang-Un Jeong and his team at Jeonbuk National University have developed an exciting solution—a photo-responsive adhesive built from sustainable materials. Professor Jeong noted, “We synthesized a tetrahydrogeraniol-based monomer, a derivative of rose oil, and created an adhesive that is 95% eco-friendly.” This makes it cost-effective and reusable.
The adhesive was designed to switch its adhesion based on light exposure. Under ultraviolet light, the adhesive becomes more liquid-like and its stickiness decreases. When exposed to visible light, it returns to its original strong bond. This reversible process means it can adapt to different conditions easily.
In addition to light, heat and solvents can also change its adhesion properties. Heating the adhesive to over 50°C significantly weakens its bond, allowing it to be easily removed and reapplied after cooling. Remarkably, tests show that the adhesive retains over 90% of its original strength after multiple uses.
This technology not only addresses environmental concerns but also paves the way for smart applications in fields like electronics and environmental monitoring. For example, the researchers created a UV sensor using this adhesive, which could be integrated into electrical circuits.
Adopting biomaterials in adhesives reflects a larger trend in sustainability, as seen in various industries. According to a recent survey, 70% of consumers prefer eco-friendly products, showcasing a strong market demand. Innovations like these are essential for meeting both performance and environmental needs.
By replacing harmful adhesives with this bio-based alternative, we move closer to achieving a more sustainable future.
For further reading, you can access the original study in the Chemical Engineering Journal.
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Jeonbuk National University,Chemical ,Education,Environmental Products & Services ,Green Technology,Surveys, Polls and Research
