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Article: Lactic acid formed into biodegradable polymer. (Materials Progress: Polymers/Ceramics).
- Article from:
- Advanced Materials & Processes
- Article date:
- May 1, 2002
CopyrightCOPYRIGHT 2002 ASM International. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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A biodegradable plastic made by transforming lactic acid into a polylactide polymer has reportedly been developed by Fortum Corp., Finland. The polymer is said to be easily broken down by normal soil bacteria. It is easily manufactured by the same equipment and processes as conventional plastics, yet it requires less energy. The polymer can reportedly be formed into fibers, thermoformed products, and extruded and blown films, and is suitable for a range of commercial, industrial, medical, and agricultural applications.
Studies have shown that polylactide plastics are converted into humus, carbon dioxide, and water after exposure to light, humidity, oxygen, and ...