摘要
为改善聚丙烯腈纳米纤维的亲水性,先采用细菌纤维素进行混合静电纺丝,再使用等离子体技术进行亲水性表面改性,研究了等离子体处理细菌纤维素/聚丙烯腈纳米纤维的时效性。通过测试纺丝溶液性质及纤维形貌,确定其最佳纺丝参数;通过观察等离子体处理前后静态接触角,获得最佳等离子体处理参数;比较了等离子体处理后纳米纤维分别在空气及真空环境中放置相同时间的接触角及形貌变化,说明材料产生时效性的原因。试验结果表明:当溶液质量分数为10%时,细菌纤维素/聚丙烯腈纤维分布均匀。等离子体处理的最佳参数为:功率150 W,处理速度90 mm/s。该材料的等离子体时效性表现为接触角先增大后减小,其原因可归结于等离子体的接枝作用及细菌纤维素的强吸水性的共同作用,特别是放置于真空环境中时亲水性表现最佳。
In order to improve the hydrophilic property of PAN nannfibers, the BC is firstly mixed electrospun, and followed by plasma treatment to modify its hydrophilic property. The optimum parameters of electrospinning are decided upon solution property and morphologies of the fiber. The static contact angle of samples is measured to select the optimal parameters of plasma treatment, and the aging characteristics of plasma treatment is also confirmed by the contact angle tests and the morphological observation of the samples treated in air and vacuum respectively. The results show that the uniform BC/PAN nanofibers is formed when used 10% eleetrospinning solution; the optimal parameter of plasma treatment is power of 150 W and treated speed of 90 mm/s; the aging characteristics of plasma treatment exhibits with a first increase then decrease in the contact angle due to the effect of grafting of plasma and strong absorption of BC, and the aging characteristics of plasma is especially good in vacuum.
出处
《上海纺织科技》
北大核心
2017年第2期1-4,共4页
Shanghai Textile Science & Technology
基金
新疆维吾尔自治区自然科学基金青年科学基金项目(2015211C287)
关键词
纳米纤维
制备参数
等离子体处理
时效性
nano fiber
preparation parameter
plasma treatment
aging characteristics
