以聚丙烯腈纤维（PAN）为基体，通过水解、酰氯化及与聚乙烯亚胺（PEI）接枝反应制备得到多胺基型固态胺纤维。应用红外光谱仪、热重分析仪及扫描电子显微镜表征了纤维的官能团结构、热稳定性及表面微观形貌。在温度25.0℃、相对湿度80%、初始CO2浓度1.0%的条件下，测得纤维在30 min内对CO2的吸附量可达154.4 g/kg；105℃水蒸气再生10 min，循环吸附再生50次，纤维的再生效率为98.3%。
PAN-PEI fiber was successfully prepared from polyacrylonitrile fiber (PAN) through hydrolysis, chlorination and amidation with macromolecular PEI. The functional groups、thermal stability and morphology of the PAN-PEI were characterized with FT-IR、TG and SEM. Under the condition of temperature 25.0 ℃, relative humidity 80%, and CO2 concentration 1.0%, the sorption amount of CO2 was 154.4 g/kg in 30 minutes. The regeneration efficiency of the PAN-PEI was 98.3% through fifty times of adsorption-regeneration by water vapor of 105 ℃ in 10 minutes.
2017,39(7): 121-124 收稿日期：2016-12-13
DOI：10.3404/j.issn.1672-7649.2017.07.025
分类号：TQ342.86
作者简介：刘彦洋(1988-),男,硕士,助理工程师,主要从事空气净化及高分子材料研究
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