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高压静电场纺丝法制备羟丙基甲基纤维素邻苯二甲酸酯超细纤维
  • 期刊名称：纤维素科学与技术，2007, 15, 1-8
  • 时间：0
  • 分类：O636.11[理学—高分子化学;理学—化学]
  • 作者机构：[1]中国科学院广州化学研究所纤维素化学重点实验室,广东广州510650, [2]中国科学院研究生院,北京100039, [3]中国科学院化学研究所高分子物理与化学国家重点实验室,北京100080
  • 相关基金：国家自然科学基金（No.50521302）,中国科学院优秀博士学位论文启动基金项目
  • 相关项目：高分子材料多层次结构及结构调控
关键词： 静电纺丝, 羟丙基甲基纤维素邻苯二甲酸酯, 超细纤维, 形态, electrospinning, hydroxypropyl methyl cellulose phthalate, ultrafine fiber, morphology
中文摘要：

通过高压静电场纺丝法制备了羟丙基甲基纤维素邻苯二甲酸酯（HPMCP）的超细纤维,并详细研究了溶液浓度、纺丝电压及混合溶剂的配比对纤维形态和直径的影响。当混合溶剂中的无水乙醇与二氯甲烷为1∶1（V/V）时,在纺丝电压为30kV的条件下,HPMCP可纺丝的浓度范围为7%～16%（wt）。溶液浓度为7%时,电纺得到珠状纤维;浓度大于8%时,得到表面光滑的圆柱状纤维。随着纺丝溶液浓度的增大,所得纤维的平均直径逐渐增大。在HPMCP溶液浓度（8%）和溶剂组成（无水乙醇/二氯甲烷=1∶1）保持一定时,随着纺丝电压的增大,所得纤维的平均直径呈下降的趋势。而在纺丝浓度和电压一定的情况下,随着混合溶剂中二氯甲烷体积分数的增大,所得纤维的平均直径先增大后减小,无水乙醇与二氯甲烷体积比为1∶1和1∶2时,所得纤维的直径分布相对集中。

英文摘要：

Ultrafine fibers of hydroxypropyl methyl cellulose phthalate （HPMCP） were prepared by electrospinning, the effects of the concentration of polymer, applied voltage and the solvent mixing ratio （ethanol and CH2Cl2） on the morphology and diameter of the fibers were investigated. The results showed that for mixed solvent system （ethanol/CH2Cl2= 1 ： 1, applied voltage=30 kV）, the concentration range suitable for electrospinning was between 7% and 16%（wt）. Bead fiber was found when the HPMCP concentration at 7%（wt）, and the normal cylindrical fibers were produced when the concentration above 8%（wt）. The average fiber diameter increased with increasing concentration however, it decreased with increasing applied voltage. Moreover, the average fiber diameter decreased firstly and then increased with increasing the volume ratio of CH2Cl2 in the mixture solvent. At the ratios of ethanol/CH2Cl2= 1 ： 1 or 1 ： 2, the distribution of fiber＇s diameter were found quite uniform.

同期刊论文项目
高分子材料多层次结构及结构调控
期刊论文 160 会议论文 70 著作 5
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