“Bioinspired Polymeric Woods.”

Water and fire-resistant artificial wood

#Technology

Sun, Oct 21st, 2018 11:00 by capnasty NEWS

According to Scientific American, material chemists at the University of Science and Technology of China have developed artificial wood that is as strong as its counterpart but lacks the vulnerabilities to fire and water. The material is made with a polymer resin and chitosan, a linear polysaccharide derived from the shells of shrimp and crabs.

The resulting material, described in August in Science Advances, is as crush-resistant as wood, says author Shu-Hong Yu, a materials chemist at the University of Science and Technology of China in Hefei. Faster freeze-drying creates even smaller channels and pores, which further strengthens the material, Yu says. And higher curing temperatures increase bonding within the resin and increase the material's strength, the team found. Adding human-made or natural fibers to the mix could also help.

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