Structure and properties of photo-biodegradable polyethylene fiber

In order to get a fiber which has photo-biodegradability and certain mechanical strength simultaneously,the photo-biodegradable polyethylene fiber was prepared by melt spinning.The mechanical properties were characterized with fiber tensile tester,and it was found that the breaking strength of the photo-biodegradable polyethylene fiber is close to that of the regular polyethylene fiber,which can be used as the general fiber material.The photodegradability and biodegradability of the fiber were studied by UV aging degradation and soil burial biodegradation,respectively.The results indicated that the decomposition rate of photo-biodegradable polyethylene fiber increases as the ultraviolet light period prolongs,much higher than that of the low density polyethylene fiber.With prolonging of the biological degradation time,the degradation rates increases gradually until up to 27.65%.