碳纤维原丝中残留溶剂提取及测试技术研究  

Study on Techniques of Extraction and Testing of Residual Solvent in Carbon Fibers

作　　者：赵德明 张顺 丛佳玥 王丹 王陆 李常清[3] ZHAO Deming;ZHANG Shun;CONG Jiayue;WANG Dan;WANG Lu;LI Changqing(Weihai Academy of Product Quality Standard&Metrology Inspection,Weihai 264200,China;Weihai TuoZhan Fibre Co.Ltd,Weihai 264211,China;Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]威海市产品质量标准计量检验研究院,威海264200 [2]威海拓展纤维有限公司,威海264211 [3]北京化工大学,北京100029

出　　处：《计量科学与技术》2021年第12期45-48,11,共5页Metrology Science and Technology

基　　金：威海市公益类科研机构基础研究经费(山东计量测试学会2020KJ27)。

摘　　要：聚丙烯腈(PAN)基碳纤维由于具有优异力学性能,广泛应用于航空航天、一般工业及高端体育用品等领域。高性能碳纤维制备技术关键之一在于原丝的高纯化、致密化,在原丝中残留溶剂二甲基亚砜(DMSO)提取、测试时,沸水会引起二甲基亚砜(DMSO)分解,严重影响纤维中残留溶剂的准确定量。国家碳纤维产业计量测试中心针对这一难题,探讨研究准确提取、定量原丝中残留溶剂二甲基亚砜(DMSO)系统方法,以水、乙醇、丙酮和环己烷为提取剂,研究提取剂种类、纤维质量、提取温度和时间、测试仪器方法对准确定量的影响。明确了各项提取条件和定量测试方法,为制备高性能纤维改进工艺控制提供计量测试服务保障。Because of their excellent mechanical properties,polyacrylonitrile(PAN)-based carbon fibers are widely used in aerospace,general industry,high-end sports goods,etc.High purification and densification of carbon fiber precursors is one of the key techniques for the preparation of high-performance carbon fibers.During the extraction and testing of the residual solvent in carbon fiber precursors,boiling water causes the decomposition of the residual solvent in the dimethyl sulfoxide(DMSO),which seriously affects the accurate quantification of the residual solvent in the fibers.A systematic study of accurate extraction and quantification of residual solvent dimethyl sulfoxide(DMSO)in carbon fiber precursors was carried out at the National Measurement and Testing Center for Carbon Fiber Industry.Water,ethanol,acetone,and cyclohexane were used as extraction agents.The effects of extraction agent types,fiber quality,extraction temperature and time,and measuring instruments on the accurate quantification were studied.The extraction conditions and quantitative testing methods were proposed to provide measurement and testing services for improved process control of the preparation of high-performance fibers.

关 键 词：产业计量 碳纤维原丝 残留溶剂 提取剂 定量 

分 类 号：TQ342.742[化学工程—化纤工业]