|本期目录/Table of Contents|

[1]李 延,钟名丽,竺士勇,等.用近红外光谱法无损快速检测丁苯胶乳的结合苯乙烯量[J].合成橡胶工业,2024,6:447-450.
　LI Yan,ZHONG Ming-li,ZHU Shi-yong,et al.Non-destructive and rapid determination of bound styrene content of styrene-butadiene rubber latex using near-infrared spectroscopy[J].China synthetic rubber industy,2024,6:447-450.
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用近红外光谱法无损快速检测丁苯胶乳的结合苯乙烯量(PDF)

《合成橡胶工业》[ISSN:1000-1255/CN:62-1036/TQ]

期数:
2024年6期
页码:
447-450
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Non-destructive and rapid determination of bound styrene content of styrene-butadiene rubber latex using near-infrared spectroscopy
文章编号:
1000-1255（2024）06-0447-04
作者:
李 延; 钟名丽; 竺士勇; 崔嘉敏; 张建平; 陈世龙
中国石油兰州石化公司 研究院，兰州 730060
Author(s):
LI Yan;  ZHONG Ming-li;  ZHU Shi-yong;  CUI Jia-min;  ZHANG Jian-ping;  CHEN Shi-long
Research Institute, Lanzhou Petrochemical Company, PetroChina, Lanzhou 730060, China
关键词:
近红外光谱; 丁苯胶乳; 结合苯乙烯量; 化学计量学; 无损快速检测; 间隔偏最小二乘算法
Keywords:
near-infrared spectroscopy;  styrene-butadiene rubber latex;  bound styrene content;  chemometrics;  non-destructive and rapid determination;  interval partial least squares algorithm
分类号:
TQ 331.4+1
DOI:
DOI:10.19908/j.cnki.ISSN1000-1255.2024.06.0447
文献标识码:
A
摘要:
采用近红外光谱漫透射法结合化学计量学的方法对丁苯胶乳的结合苯乙烯量进行了无损快速检测研究，通过折光指数法测定了丁苯胶乳的结合苯乙烯量，使用傅里叶变换近红外光谱分析仪采集了丁苯胶乳的近红外光谱数据，采用Kennard-Stone算法划分校正集和验证集，结合多元散射校正法、二阶导数、Norris平滑等光谱预处理方法，建立了偏最小二乘回归定量分析模型，最终考察了通过间隔偏最小二乘算法筛选光谱特征变量对定量分析模型的影响。结果表明，所建模型的校正集相关系数、验证集相关系数、交互验证均方根误差和验证集均方根误差分别为0.988 7、0.818 0、0.357和0.319；采用近红外光谱漫透射法结合化学计量学算法建立的方法可以实现丁苯胶乳的结合苯乙烯量的无损快速检测，从而为近红外光谱分析技术在合成橡胶中间质量控制领域的应用提供了技术支持。
Abstract:
A non-destructive and rapid determination of bound styrene content in styrene-butadiene rubber latex was studied using near-infrared spectroscopy diffuse transmission method combined with chemometrics, bound styrene content in styrene-butadiene rubber latex was determined by refractive index method, near-infrared spectral data of styrene-butadiene rubber latex were collected using Fourier transform near-infrared spectrometer, Kennard-Stone algorithm was used to divide the calibration set and validation set, partial least squares regression quantitative analysis model was established by combining the spectral preprocessing methods, such as multiple scattering correction method, second-order derivatives and Norris smoothing, etc, and the influence of screening spectral feature variables by interval partial least squares algorithm on the quantitative ana-lysis model was finally investigated. The results showed that the calibration set correlation coefficient, validation set correlation coefficient, interactive validation root mean square error and validation set root mean square error of the established model were 0.988 7, 0.818 0, 0.357 and 0.319, respec-tively. The method established by combining near-infrared spectroscopy diffuse transmission method with chemometric algorithm could realise non-destructive and rapid determination of bound styrene content in styrene-butadiene rubber latex, providing the technical support for the application of near-infrared spectroscopy analysis technology in the field of synthetic rubber intermediate quality control.

参考文献/References

［1］ 陈波宇， 顾瑛， 陈生. 热裂解气相色谱法测定丁苯橡胶中苯乙烯含量［J］. 轮胎工业， 2022， 42（5）： 316-319.［2］ 熊文强， 任广宝， 刘国强，等. FTIR-ATR法测定溶聚丁苯橡胶中总苯乙烯的含量［J］. 分析仪器， 2023， 51（1）： 51-53.［3］ 王绮轩. 羧基丁苯胶乳中结合苯乙烯含量的红外光谱测定法［J］. 光谱实验室， 1994， 11（5）： 40-43.［4］ 中国石油化工总公司. GH/T 8658—1998 乳液聚合型苯乙烯-丁二烯橡胶生胶结合苯乙烯含量的测定 折光指数法［S］. 北京： 中国标准出版社， 1999： 1-5.［5］ 陈瀑， 戴嘉伟， 李敬岩， 等. 近红外光谱分析中的化学计量学方法进展［J］. 化学试剂， 2023， 45（6）： 105-111.

备注/Memo

备注/Memo:
兰州石化公司科研项目（LZSH 202221）。
更新日期/Last Update: 1900-01-01