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首页> 外文期刊>Journal of Applied Polymer Science >Aminating modification of viscose fibers and their CO2 adsorption properties
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Aminating modification of viscose fibers and their CO2 adsorption properties

机译：粘胶纤维的胺化改性及其对二氧化碳的吸附性能

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摘要

An adsorbent for CO2 capture was prepared by the grafting of acrylonitrile (AN) onto viscose fibers (VFs); this was followed by amination with triethylene tetramine (TETA). The effects of the reaction conditions, such as the concentrations of the monomer, initiator, and nitric acid, on the grafting degree and grafting efficiency were studied. The adsorption performance of the adsorbent for CO2 was evaluated by fixed-bed adsorption. The highest dynamic adsorption capacity of the adsorbent for CO2 was 4.35 mmol/g when the amine content of the adsorbent VF-AN-TETA reached 13.21 mmol/g. Compared with the polypropylene (PP)-fiber-based adsorbent (PP-AN-TETA), VF-AN-TETA with hydroxyl groups on the fibers facilitated the diffusion of CO2 and water and led to a higher CO2 adsorption capacity than that of PP-AN-TETA. The VF-AN-TETA adsorbent also showed good regeneration performance: its CO2 adsorption capacity could still retain almost the same capacity as the fresh adsorbent after 10 adsorption-desorption cycles. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 132, 42840.
机译：通过将丙烯腈（AN）接枝到粘胶纤维（VFs）上来制备用于捕获CO2的吸附剂。然后用三亚乙基四胺（TETA）胺化。研究了反应条件，如单体，引发剂和硝酸的浓度对接枝度和接枝效率的影响。通过固定床吸附评价了CO 2吸附剂的吸附性能。当吸附剂VF-AN-TETA的胺含量达到13.21 mmol / g时，吸附剂对CO2的最大动态吸附容量为4.35 mmol / g。与聚丙烯（PP）纤维基吸附剂（PP-AN-TETA）相比，纤维上带有羟基的VF-AN-TETA促进了CO2和水的扩散，并导致了比PP更高的CO2吸附能力-安泰塔VF-AN-TETA吸附剂还显示出良好的再生性能：经过10次吸附-解吸循环后，其CO2吸附容量仍可保持与新鲜吸附剂几乎相同的容量。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，132，42840。

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