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.
作者
何潇
沈青
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)
出处
《中国造纸学报》
CAS
CSCD
北大核心
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)。
关键词
纤维素
动态吸附
表面能
cellulose
dynamic adsorption
surface energy
