商业纤维素产品的动态吸附行为和表面能  

Dynamic Adsorption Behavior and Surface Properties of Commercial Celluloses

作　　者：何潇[1] 沈青[2] HE Xiao;SHEN Qing(Publication and Media Department,Chongqing Business Vocational College,Chongqing,401331;State Key Lab for Modification of Chemical Fiber and Polymer Materials,Donghua University,Shanghai,201620)

机构地区：[1]重庆商务职业学院出版传媒学院,重庆401331 [2]东华大学纤维材料改性国家重点实验室,上海201620

出　　处：《中国造纸学报》2023年第1期33-37,共5页Transactions of China Pulp and Paper

基　　金：重庆市教委科学技术研究项目(KJQN20224402)。

摘　　要：利用毛细管上升法研究3种商业纤维素产品(纯纤维素C8002、315过滤纸和加拿大木浆)对极性和非极性液体的动态吸附行为,并进一步据此估算3种商业纤维素的表面能。结果表明,纯纤维素(C8002)比另外2种商业纤维素具有更强的溶剂吸附能力,各纤维素产品对二碘甲烷(非极性)的吸附量均为最高。商业化生产过程使得纤维素产品的Lewis酸碱反应能力增强,主要原因是其Lewis碱性成分的增加。This study investigated the dynamic adsorption behaviors of commercial celluloses,i.e.,C8002,315 filter paper,and Canada wood pulp,towards polar and non-polar fluids and further deduced their surface energies via capillary rise method.Results showed that the pure cellulose,C8002,had stronger adsorption capacity compared with the other two commercial cellulose samples,while the mostly adsorbed solvent for all cellulose samples was the non-polar diiodomethane.The commercial production process would endow the cellulosic products with increased Lewis acid-base interaction ability due to the increase in Lewis base component.

关 键 词：纤维素 动态吸附 表面能 

分 类 号：TS71[轻工技术与工程—制浆造纸工程]