【作者】 郑培培；

【导师】 陈宇岳；

【作者基本信息】 苏州大学 ， 纺织工程， 2008， 硕士

【摘要】 麻纤维是天然纤维素纤维,具有可再生性、生物可降解性、无毒无污染等许多优良的特性,而水溶性丝素蛋白是优良的蛋白质原料,与人体有良好的亲和性。为了实现丝素蛋白在麻纤维功能化改性中的应用,本研究采用高碘酸钠溶液对麻纤维进行选择性氧化,得到了氧化麻纤维,在此基础上再用丝素蛋白溶液处理,制备了丝素蛋白麻纤维。研究了麻纤维选择性氧化、丝素蛋白麻纤维的制备原理,并研究了氧化麻纤维、丝素蛋白麻纤维的重量变化、表面形态、聚集态结构和力学性能的变化,以及丝素蛋白麻织物的抗皱、抗紫外性能和织物风格等。结果表明:(1)高碘酸浓度、氧化时间、氧化温度和溶液pH值等条件是影响氧化程度的主要因素。(2)随着氧化程度的加深,麻纤维表面的剥损条痕不断加深;麻纤维的结晶度不断降低,直至完全无定形化;热失重温度和吸热分解温度随氧化程度的加深而不断降低;麻纤维中的醛基含量增加,但麻纤维的失重率增加,同时麻纤维的断裂强度和断裂伸长率下降。(3)氧化亚麻纤维经丝素蛋白溶液处理后,其表面的氧化条痕得到修饰,纤维表面变得光滑、平整。(4)丝素蛋白亚麻织物的抗皱性能明显提高。更多还原

【Abstract】 As a natural cellulose fiber, bast fiber has a lot of excellent characteristics, including renewability, biodegradability, nontoxic and nonpollution. Meanwhile, silk fibroin is a good protein raw material, having good body affinity. In order to realize the functionalization of the bast fiber, bast fibers were firstly selectively oxidized with NaIO4 solution and then treated with silk fibroin solution to obtain silk fibroin bast fiber. In this paper, the preparation principle of oxidized bast fiber and silk fibroin bast fiber were studied, as well as the weight, surface morphology, aggregation structure and mechanical properties. The performance of silk fibroin bast fabric such as wrinkle resistance, anti-uv properties and fabric style were also researched in the paper.The results showed that the factors, such as the concentration of oxidant, oxidiation time, oxidiation temperture and pH value, mainly affected the oxidation degree of bast fiber. With the deepening oxidation degree, strips emerged on the surface of bast fiber, and the crystallinity degree dropped. Moverover, the conformation of bast fiber even completely became amorphous when the bast fiber oxidized under extreme condition. The thermal decomposition temperture and endothermic decomposition temperature continuously decreased with the enhanced oxidization degree. The aldehyde content and the rate of weight loss in flax fiber increased, but the breaking strength and breaking elongation of bast fiber declined. The surface of oxidized linen fiber became smooth after treating with fibroin protein solution. Moreover, the wrinkle resistance of silk fibroin linen fabric was significantly increased.更多还原