Patent for new wood adhesive

Friday 28 Aug 2020

The University of Maine has received a patent for a process that creates construction materials using an environmentally friendly binding agent.

The process developed by UMaine researchers eliminates the use of formaldehyde as a binding agent for construction materials such as particleboard, and replaces it with a slurry of cellulose nanofibrils, according to a news release. The use of the slurry increases durability and eliminates formaldehyde off-gassing.

The technology can be used to create a variety of commonly used building materials. The primary application for the patent focuses on a replacement for particleboard.

“CNF technology could transform the way we make not only building materials, but a host of other products,” said the UMaine inventor, professor of chemical and biomedical engineering, Doug Bousfield. “Particleboard is only one potential application. A similar process could be used to create composite fibre board for insulation, cements, and even paint. We are also researching alternatives to single-use plastics for applications such as food packaging, drink lids and utensils.”

UMaine’s PDC is the only publicly accessible U.S. facility that can manufacture CNF at a rate of one ton per day. The centre supplies CNF and cellulose nanocrystals to academic, public and private research groups interested in evaluating and developing applications for the materials.

Photo: University of Maine, Particleboard whose binding is an environmentally friendly cellulose nanofibrils slurry, developed by the University of Maine


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