Weatherability of biodegradable polybutylene succinate(PBS) monofilaments

摘要: Biodegradable polybutylene succinate(PBS) is an environment friendly plastics for fisheries, because it can mitigate the ghost fishing problem caused by gill-net and trap fisheries. To evaluate photodegradability of PBS monofilament in comparison with polyamide(PA) polyethylene(PE) monofilament, these 3 types monofilaments were spun exposed to ultraviolet light(UV) weather-ometer 900 hours, then their modification, crystal structure, strength, extensibility analysed. did not show any crack maintained its structure after hour exposure UV whereas PE began showing cracks modification 600 exposure. Under exposure, strength decreased more rapidly than PA PE. We estimate that gill nets made endure about 1 year. The breaking elongation linearly time monofilaments. derived regression equations residual tenacity(RT, kg/) extensibility(RE, %) year(Y) each were; : RT