摘要
为解决废旧纺织品回收利用中纯聚酯的分拣问题,以聚酯、棉、锦纶、羊毛、聚酯/棉混纺、聚酯/锦纶混纺、聚酯/羊毛混纺织物共计276个样品为研究对象,利用近红外光谱仪获取样本的原始近红外光谱图,通过化学计量学软件CM-2000对样本原始近红外光谱图进行预处理,并用偏最小二乘法作为校正方法建立废旧聚酯纤维制品近红外定量分析模型。所建模型的校正集相关系数为0.994,验证集相关系数为0.989,校正标准偏差为1.832,验证标准偏差为2.065,内部预测正确率为90.58%。用未参与建模的173个样本(7种织物)对模型进行外部验证,验证正确率为88.44%,而对纯聚酯样本的外部预测正确率可达96%。结果表明,该模型可以较准确地将纯聚酯织物从废旧纺织品中鉴别出来。
In order to solve the sorting problem of pure polyester from the waste textiles,a total of 276 samples including pure polyester textile,pure cotton textile,pure nylon textile,pure wool textile,polyester/cotton textile,polyester/nylon textile and polyester/wool textile were studied. The composition of fabric was determined by Fourier transform mid-infrared spectrometer,and the accurate content of each component was measured by national standard method. Then the original near infrared spectroscopy（ NFRS） spectra of the samples were acquired. The original NIRS of samples was pretreated by chemometrics software CM-2000,and the near infrared quantitative analysis model of waste polyester fiber products was established by partial least squares as a correction method. The correlation coefficient of calibration and the correlation coefficient of prediction was 0. 994 and 0. 989,the standard errors of calibration and the standard errors of prediction are 1. 832 and 2. 065,respectively. The polyester content of the above fabric was predicted by the established model,and the correct rate of internal prediction is90. 58%. 173 samples not involved in the modeling were used for external verification. The validation accuracy is 88. 44%,and the external prediction rate for pure polyester fabrics is 96%. The result shows that the model can be used to identify pure polyester fabric from waste textiles.
作者
韦树琛
丁欣
李文霞
王华平
张朔
WEI Shuchen;DING Xin;LI Wenxia;WANG Huaping;ZHANG Shuo(School of Materials Science and Engineering,Beijing Institute of Fashion Technology,Beijing 100029,China;College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;Zhejiang Grerial Co.,Ltd.,Shaoxing,Zhejiang 312000,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2018年第7期63-68,共6页
Journal of Textile Research
基金
国家重点研发计划资助项目(2016YFB0302900)
北京市教委提升计划项目(16317)
绿宇基金项目(HXKY05160384)
关键词
聚酯纤维
废旧纺织品
近红外定量分析
纤维鉴别
polyester fiber
waste textile
near infrared quantitative analysis
fiber identification
