丙烯腈-丙烯酰氧乙基三甲基氯化铵共聚物的吸湿性研究  

Study on the Hygroscopicity of Acrylonitrile-Acryloxyethyl Trimethyl Ammonium Chloride Copolymer

作　　者：张楠[1,2] 章若红[1] 李文慧[1] 陈静茹[1] ZHANG Nan;ZHANG Ruo-hong;LI Wen-hui;CHEN Jing-ru(Shanghai Institute of Quality Inspection and Technical Research,Shanghai 201114,China;College of Materials Science and Engineering,Donghua University,Shanghai 201620,China)

机构地区：[1]上海市质量监督检验技术研究院,上海201114 [2]东华大学材料科学与工程学院,上海201620

出　　处：《合成纤维》2021年第3期1-4,7,共5页Synthetic Fiber in China

摘　　要：丙烯酰氧乙基三甲基氯化铵(DAC)有良好的吸湿性,将其与丙烯腈共聚后,可以极大地改善丙烯腈共聚物的吸湿性能。研究了共聚物的回潮率和回潮效率随时间的变化规律,结果表明:DAC可以有效提高丙烯腈聚合物的吸湿能力,且回潮率与DAC的质量分数呈正比;增加相对湿度可以明显提高共聚物的平衡回潮率;提高温度会降低共聚物的平衡回潮率,但可以提高吸湿初期的回潮效率。Acryloxyethyl trimethyl ammonium chloride has good hygroscopicity. The copolymerization of ac-rylonitrile with acryloxyethyl trimethyl ammonium chloride can greatly improve the hygroscopicity of acrylo-nitrile copolymer. The change rule of the moisture regain and moisture regain efficiency of the copolymerover time are studied, and the results show that acryloxyethyl trimethyl ammonium chloride can effectivelyimprove the moisture absorption capacity of acrylonitrile polymer, and the moisture regain is directly propor-tional to the mass content of acryloxyethyl trimethyl ammonium chloride. Increasing the relative humiditycan obviously improve the constant moisture regain of the copolymer, and increasing the temperature can re-duce the constant moisture regain of the copolymer, but can improve the moisture regain efficiency at theearly stage of moisture absorption.

关 键 词：丙烯腈共聚物 吸湿性 回潮率 

分 类 号：TQ342.31[化学工程—化纤工业]