聚丙烯腈的水解及其对阳离子染料吸附作用的研究-纺织工程专业论文.docx

Study on the Hydrolysis of Polyacrylonitrile Fiber and Its Adsorption of Cationic DyeAbstractmixture solvents.5、Compared with raw polyacrylonitrile fiber, the hydrolyzed polyacrylonitrile fiber showed the rapid adsorption of cationic dye. The adsorption isotherms and kinetic adsorption can be described with Freundlich’s and Lagergren’s pseudo-second equationsrespectively. Under same condition, the cationic dye removal of raw polyacrylonitrile fiber was 47.39%, and 97.41% for the hydrolyzed version.The feature and innovation points of this thesis could include:1、In alkaline hydrolysis conditions, the cationic surfactant was found to significantly accelerate the process of hydrolysis of polyacrylonitrile fiber .2、 The conductivity and acid-base titration curve of given standard was proposed tocalculate carboxyl content of the hydrolyzed polyacrylonitrile fiber.Keywords: polyacrylonitrile fiber, surfactant, organic solvent, cationic dye, electrical conductivity, alkali hydrolysis, adsorptionWritten by Li HuiSupervised by Zhu XinshengIII目录第一章绪论....................................................................................................................11.1 聚丙烯腈纤维概述 .....................................................................................................11.1.1 聚丙烯腈纤维的性质...........................................................................................11.1.2 聚丙烯腈纤维的结构............................................................................................21.2 聚丙烯腈纤维的水解方法及应用 .............................................................................31.2.1 聚丙烯腈纤维水解方法.......................................................................................31.2.2 聚丙烯腈纤维的水解机理...................................................................................41.2.3 聚丙烯腈纤维水解产物的用途...........................................................................61.3 吸附分离纤维制备及其应用 ...............................................................................