纤维素纤维的生物降解性能  

Biodegradability of cellulose fibers

作　　者：曲腾云 于伟东[1] 

机构地区：[1]东华大学纺织学院,上海201620

出　　处：《纺织学报》2015年第11期20-26,共7页Journal of Textile Research

摘　　要：为了解纤维素纤维的生物降解性能,选取棉、粘胶、竹浆纤维、Modal、Lyocell 5种纤维素纤维,填埋于自然环境的土壤中,通过对降解前后纤维的颜色、表观形态、质量、力学性能、结晶度、组分变化的综合评价来表征其生物降解性,并对影响降解性的因素进行了探讨。经过90 d的填埋,5种纤维均发生了降解,但棉纤维的降解速率明显高于其他再生纤维素纤维,降解速率高低的排序为:棉>粘胶>竹浆纤维>Modal>Lyocell。结果表明,纤维的表观形态和内部结晶结构对纤维素纤维的降解速率有重要影响,天然纤维素纤维的生物降解性优于可再生纤维素纤维。The biodegradability of cellulose fibers including cotton, viscose, bamboo fiber, Modal and Lyocell, was characterized by the changes of color, morphology, weight, mechanical properties, crystallinity, and chemical properties after buried in nature soil for a period of time. The influences on biodegradability were discussed. After 90 days, the experimental results indicated that all five cellulose fibers experienced a rapid degradation. However, cotton, as the nature cellulose fiber, presented the fastest degradation rate . The order of degradation rate was cotton 〉 viscose 〉 bamboo fiber 〉 Modal 〉 Lyocell. Analyses show the morphology and internal crystal structure have significant influence on the biodegradability, and biodegradability of natural cellulose fiber is better than that of regenerated cellulose fiber.

关 键 词：纤维素纤维 生物降解 表观形态 结晶结构 

分 类 号：TS102.1[轻工技术与工程—纺织工程]