|Most adhesives used today are made with formaldehyde, a toxic, volatile, cancer-causing compound. As a result, the adhesives industry is under pressure to develop a safer, environmentally-friendly alternative to current formaldehyde-based adhesives. Most of the work in this field has been centered on the use of soybean protein. Unfortunately, methods for making these protein adhesives typically require extensive protein modifications or functionally modified resins, both complex, expensive processes. As a result, the use of soybean protein as a safe, green replacement for formaldehyde-based adhesives is currently not a financially viable alternative.
Researchers at Purdue University have developed a formaldehyde free soy-based adhesive. It is synthesized by a simple, single-step process to cross-link soybean proteins with other naturally occurring proteins, greatly increasing overall cohesion. This system does not require any additional purification or processing and yields a high-strength adhesive that can be used at room temperature without additional pressure. This new soy adhesive will be competitive in existing adhesive markets, while offering a safer, nontoxic, renewable alternative to formaldehyde-based adhesives.
-Cures at room temperature
-Environmentally friendly adhesives
Apr 27, 2018
Oct 24, 2016
Oct 27, 2015
Purdue Office of Technology Commercialization
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