Car Tires Made From Trees

Wood science researchers at Oregon State University (OSU) have made some surprising findings that may result in car owners around the world driving around on tires made partly from trees in the not so distant future.

Their findings involve the potential of microcrystalline cellulose, which is a product that is easily made from most types of plant fibers, to partially replace silica as the reinforcing filler in the manufacture of rubber tires. This silica replacement could cost less, perform better and save on fuel and energy.

The new study suggests that this approach might decrease the energy required to produce the tire, reduce costs, and better resist heat buildup. Early tests indicate that the product would have comparable traction on cold or wet pavement, be just as strong, and provide even higher fuel efficiency than traditional tires in hot weather.

Associate Professor of Wood Science and Engineering at OSU College of Forestry Kaichang Li said, “We were surprised at how favorable the results were for the use of this material.”

While cellulose fiber has been used in the past as reinforcement in some types of rubber and automotive products, such as belts, hoses and insulation, it has never been used in tires. More research is needed to confirm the long-term durability of tires made with partial replacement of silica but this is very promising.