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Preparation and Characterization of Cellulose acetate carbamate as Membrane materials

Authors： CHEN Fu-shan, SU Lin-hai, SONG Xiao-ming,SUN Zhong-hua

Units： College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

KeyWords： Cellulose acetate; urea; Cellulose acetate carbamate; degree of substitution; Membrane performance

ClassificationCode：O636.1+1

year,volume(issue):pagination： 2013,33(3):59-63

Abstract：

Using urea to cellulose acetate (CA) for soaking pretreatment, and then transfer CA into o-xylene inert system for reaction. These factors have been explored at the process of synthesis and the results were shown as follows: Pretreatment concentration was 25%, pretreatment temperature was 55 ℃, pretreatment time was 5 h, and the reaction time was 3.5 h. On this condition, the degree of substitution of CAC was able to be 0.1. FT-IR characterization proved that the CAC was successful synthetized. Use the CAC and CA for casting film, the tensile strength and water flux of CAC membrane is better than that of CA membrane. The study concluded that with the degree of substitution increases, CAC film tensile strength and water flux shows increase trend.

Funds：

国家自然科学基金项目(No.21176131).

AuthorIntro：

苏林海（1987-），男，山东淄博，主要研究方向：天然高分子的改性及应用

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