近红外光谱法测定端羟基环氧乙烷-四氢呋喃共聚醚的羟值
NIRS Determination of Hydroxyl Value of PET
摘 要
提出了用近红外光谱测定端羟基环氧乙烷-四氢呋喃共聚醚(PET)的羟值,结合主成分回归和偏最小二乘法建立了PET羟值与其近红外光谱之间的关联模型。结果表明,近红外光谱法与化学分析法的测定结果一致;近红外光谱法测定PET羟值的相对误差在5％以内;利用遗传算法选择部分波长建立校正可以降低模型的预测误差。
端羟基环氧乙烷-四氢呋喃共聚醚
羟值
NIRS
PET
Hydroxyl value
Abstract
A method of NIRS for the determination of hydroxyl value of hydroxyl-terminated ethylene oxide and tetrahydrofuran copolymer (PET) was proposed. Based on the spectral data of PET and by the application of principal component regression (PCR) and partial least square (PLS), a calibration model relating the hydroxyl value of PET to the respective NIR spectra was established. It was found that the results obtained by the present method were in consistency with those obtained by the chemical method. The relative error of results of hydroxyl value obtained by NIRS was within 5%. Error of prediction of the calibration model was reduced by selecting part of wavelengths by the genetic algorithm (GA).
中图分类号 O657.33
所属栏目 试验与研究
基金项目
收稿日期 2011/9/1
修改稿日期
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作者单位点击查看
联系人作者刘发龙(lflsun@163.com)
备注刘发龙(1978-),男,湖北枣阳人,硕士,工程师,主要从事固体推进剂分析测试技术研究。
引用该论文: LIU Fa-long,HU Wei,CHENG Fu-yin,LIU Zhi-guo. NIRS Determination of Hydroxyl Value of PET[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2012, 48(6): 634～637
刘发龙,胡伟,程福银,刘治国. 近红外光谱法测定端羟基环氧乙烷-四氢呋喃共聚醚的羟值[J]. 理化检验－化学分册, 2012, 48(6): 634～637
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参考文献
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【14】褚小立,袁洪福,陆婉珍.近红外分析中光谱预处理及波长选择方法进展与应用［J］.化学进展, 2004,16(4):528-542.
【2】王多加,周向阳,金同铭,等.近红外光谱检测技术在农业和食品分析上的应用［J］.光谱学与光谱分析, 2004,24(4):447-450.
【3】MEAGHER L P, HOLROYD S E. At-line near-infrared spectroscopy for prediction of the solid fat content of milk fat from new zealand butter［J］. J Agric Food Chem, 2007,55:2791-2796.
【4】徐广通,袁洪福,陆婉珍.近红外光谱技术快速测定柴油物理性质［J］.石油学报, 1999,15(5):64-68.
【5】汤彦丰,张卓勇,范国强.中草药大黄的近红外光谱和人工神经网络鉴别研究［J］.光谱学与光谱分析, 2004,24(11):1348-1351.
【6】王家俊.FT-NIR光谱分析技术测定烟草中总氮、总糖和烟碱［J］.光谱实验室, 2003,20(2):181-185.
【7】王洪,傅志红,彭玉成.聚合物合成及成型过程研究的近红外光谱技术［J］.工程塑料应用, 2002,30(10):57-59.
【8】JUDGE M D. The application of near-infrared spectroscopy for the quality control analysis of rocket propellant fuel pre-mixes［J］.Talanta, 2004,62:675-679.
【9】FEIGLEY R, FENG Jin, LORENZO J, et al. Monitoring of chemical degration in propellants using AOTF spectrometer［C］//Proceedings of SPIE. Belingham WA: SPIE, 2004:96-103.
【10】吴联相,刘勤勤,贾月,等.近红外光谱法快速测定单推-3液体推进剂组分含量的研究［J］.导弹与航天运载技术, 2008(4):51-55.
【11】程福银,秦芳,曹庆伟,等.近红外光谱测定NEPE胶组分含量［J］.固体火箭技术, 2009,32(6):706-710.
【12】HEIKKA R A, IMMONEN K T, MINKKINEN P O, et al. Determination of acid value, hydroxyl value and water content in reactions between dicarboxylic acids and diols using near-infrared spectroscopy and non-linear partial least squares regression［J］. Anal Chim Acta, 1997,349:287-294.
【13】袁永朝,肖恒,黄瑞,等.近红外光谱法同时测定聚醚羟值和伯羟基相对含量［J］.化学推进剂与高分子材料, 2008,6(5):52-54.
【14】褚小立,袁洪福,陆婉珍.近红外分析中光谱预处理及波长选择方法进展与应用［J］.化学进展, 2004,16(4):528-542.
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