爆破器材2017，Vol.46Issue(1)：60-64,5.DOI:10.3969/j.issn.1001-8352.2017.01.013
单基发射药生产过程中驱水棉水分含量的快速检测方法❋
Quick Measurement of Water Content of Dehydrated NC during the Manufacture of Single Base Propellant
摘要
Abstract
Water content of dehydrated nitrocellulose(NC) has a great influence on the molding process of single base propellant. Near infrared diffuse reflectance ( NIR) analysis was used in the online detection of water content of single base propellant after driving water. Spectral region 5 015. 6-5 224. 8 cm-1 and 6 525. 9-7 008. 7cm-1 were selected to con-struct the model by analyzing the spectra of pure water NC, alcohol and single base propellant samples. The pretreatment method of SNV + 1st derivative + smooth was chosen by comparing different spectral preprocessing methods. Partial Least-Squares ( PLS) method was applied to set up linear mathematical model of water content, predict the predictive sets and verify the model. Results indicate that R2 of calibration set and prediction set are 0. 995 4 and 0. 994 4 respectively. RMSEP is 0. 0390. What’s more, the average analytical error is 0. 997% and the time for detection is less than 20 s. It can meet the needs of the continuous automatic production for single base propellant.关键词
近红外/单基发射药/水分/快速检测/硝化棉(NC)Key words
NIR/single base propellant/water/quick measurement/nitrocellulose(NC)分类
化学化工引用本文复制引用
王志强,邓国栋,周帅,谷强,曾建..单基发射药生产过程中驱水棉水分含量的快速检测方法❋[J].爆破器材,2017,46(1):60-64,5.基金项目
国防火炸药科研专项项目 （）
