Perylene-Based Fluorescent Sizing Agent for Precise Evaluation of Permeability and Coating Property of Sizing Paste  

作　　者：Enqi Jin Zhengke Wang Qiaoling Hu Manli Li Jiugang Yuan 

机构地区：[1]MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China [2]College of Textiles and Apparel,Shaoxing University,Shaoxing 312000,China [3]College of Textiles and Apparel,Jiangnan University,Wuxi 214122,China

出　　处：《Advanced Fiber Materials》2020年第5期279-290,共12页先进纤维材料（英文）

基　　金：supported by Science Fund for Distinguished Young Scholars of Zhejiang Province(No.LR20E030004);National Natural Science Foundation of China(No.51873187);National Basic Research Program of China(No.2017YFE0117700 and 2018YFC1004803);Postdoctoral Science Foundation of China(No.2018M632467);Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province(No.QJRZ1902);Fundamental Research Funds for the Central Universities(No.K20200127).

摘　　要：Warp sizing is considered as the most important process of weaving preparation in the textile field.The quality of sized warp yarns is directly determined by the permeation and coating of sizing paste into/on warp yarns.However,many significant flaws of the current method of permeability and coating property of sizing paste,such as low accuracy and narrow variety adaptability for sizing agents and warp yarns,have emerged in the evaluation process.In order to eliminate the inherent flaws in the current method,the investigation chose chitosan(CS)as a representative of common sizing agents,introduced various amounts of perylene units onto molecular chains of the CS,and prepared a new functional sizing agent-fluorescent CS with different labeling degrees of perylene.Furthermore,PVA-perylene was synthesized to evaluate the permeability and coating property of PVA sizing paste.Then,three indexes to indicate the permeability and coating property of sizing paste,i.e.permeation percentage,coating percentage and integrity percentage of sizing film,were evaluated using the CS-perylene and PVA-perylene derivatives prepared.Due to the fluorescence emitted by the perylene units,the three indexes can be determined accurately and conveniently depending on only fluorescent microscope and common image processing software.The investigation efficiently solves the difficult problem of evaluating permeation and coating property of the pastes of both bio-based and petroleum-based sizing agents with appropriate degrees of labeling and has a significant guiding function on accurate determination of the quality of sized yarns.

关 键 词：Fluorescent sizing agent PERYLENE Chitosan PVA PERMEABILITY Coating property 

分 类 号：TG1[金属学及工艺—金属学]