The Degradation of Polylactic Acid Aiber
نویسندگان
چکیده
Polylactic acid (PLA) fiber, also known as corn fiber, is made of corn and other grains through fermentation, polymerization and spinning. Thus it is biodegradable and environmentally friendly. Three kinds of buffer solutions with PH values of 4, 7.2 and 11 were made for the investigation of the degradation properties of PLA. The experimental results showed that the degradation of polylactic acid fiber was degraded rapidly in the buffer solution. After 10 days, significant degradation was observed from the fiber in the buffer solution of PH 11. However, little change occurred for the fibers in the other two solutions, which evidently revealed that alkali level was the dominate factor for the degradation of PLA fibers.
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