[1]李延a,钟名丽a,辛明东b,等.近红外光谱结合偏最小二乘回归法快速无损测定高密度聚乙烯的熔体流动速率[J].石化技术与应用,2024,6:469-472.
LI Yana,ZHONG Ming-lia,XIN Ming-dongb,et al.Rapid nondestructive testing of melting flow rate of high-density polyethylene by near-infrared spectroscopy and partial least squares regression method[J].Petrochemical technology & application,2024,6:469-472.
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近红外光谱结合偏最小二乘回归法快速无损测定高密度聚乙烯的熔体流动速率(PDF)
《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]
- 期数:
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2024年6期
- 页码:
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469-472
- 栏目:
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- 出版日期:
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2024-11-10
文章信息/Info
- Title:
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Rapid nondestructive testing of melting flow rate of high-density polyethylene by near-infrared spectroscopy and partial least squares regression method
- 文章编号:
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1009-0045(2024)06-0469-04
- 作者:
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李延a; 钟名丽a; 辛明东b; 翟德宏b; 崔嘉敏a; 张建平a; 李玮b; 赵秀娟b
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中国石油兰州石化公司 a.研究院,甘肃 兰州 730060; b.榆林化工有限公司,陕西 榆林 719111
- Author(s):
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LI Yana; ZHONG Ming-lia; XIN Ming-dongb; ZHAI De-hongb; CUI Jia-mina; ZHANG Jian-pinga; LI Weib; ZHAO Xiu-juanb
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a. Research Institute,Lanzhou 730060; b. Yulin Chemical Co Ltd,Yulin 719111, Lanzhou Petrochemical Company,PetroChina,China
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- 关键词:
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高密度聚乙烯; 熔体流动速率; 近红外光谱; 定量分析模型; 快速无损检测; 偏最小二乘回归法
- Keywords:
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high density polyethylene; melt flow rate; near-infrared spectroscopy; quantitative analysis model; rapid nondestructive testing; partial least squares regression method
- 分类号:
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TQ 325.1+2;O 657. 3
- DOI:
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10.19909/j.cnki.ISSN1009-0045.2024.06.0469
- 文献标识码:
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B
- 摘要:
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选择使用多元散射校正(MSC)、一阶导数(D 1)、二阶导数(D 2)、卷积平滑(Savitzky-Golay)等方式对3个牌号高密度聚乙烯(HDPE)粉料样本的近红外光谱进行预处理,使其经预处理后的近红外光谱与相应牌号熔体流动速率(MFR)之间的关联性良好;然后,采用偏最小二乘回归法拟合,建立相应匹配HDPE牌号的MFR定量分析模型,旨在实现快速无损检测。结果表明:上述近红外光谱结合偏最小二乘回归法所建立的匹配于相应3种HDPE粉料的MFR定量分析模型的测试结果均具有很好的复现性,牌号1、牌号2、牌号3的MFR标准偏差依次为0.015 8,0.014 7,0.000 6 g/min,而且该方法快速测定得到的MFR与GB/T 3682.2—2018标准方法测定的均相近。
- Abstract:
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Methods such as multiple scattering correction (MSC), first derivative(D1), second derivative(D2),and convolution smoothing (Savitzky-Golay) were chosen to preprocess the near-infrared(NIR) spectra of three grades of high-density polyethylene (HDPE) powder samples, so that the correlation between the preprocessed NIR spectra and the melt flow rate (MFR) of the corresponding HDPE grade was good. Then, the MFR quantitative analysis model matching HDPE grade was established by coupling with partial least squares regression(PLSR)method to achieve rapid nondestructive testing. The results indicated that the test results from above corresponding MFR quantitative analysis models matching above three grades of HDPE powders established by NIR spectroscopy coupling with PLSR method had good reproducibility, and MFR standard deviation of HDPE Grade 1, Grade 2 and Grade 3 was 0.015 8,0.014 7,0.000 6 g/min, respectively. Moreover, the MFR obtained by such rapid testing were similar to those determined by GB/T 3682.2—2018 standard method.
参考文献/References
[1] 王俊,田波,刘军平,等. 高密度聚乙烯生产工艺对比分析与研究[J]. 聚酯工业,2024,37(1):58-60.[2] Zhao Z,Ma B. Resin quality estimation for industrial polyethylene process based on suboptimal strong tracking filter[J]. Journal of Chemical Industry and Engineering (China),2008,59 (7):1635-1638.[3] 陈杰勋,王靖岱,阳永荣. 基于拉曼光谱的高密度聚乙烯质量检测[J]. 化工学报,2009,60(9):2365-2371.[4] 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.[5] 严衍禄,陈斌,朱大洲. 近红外光谱分析的原理、技术与应用[M]. 北京:中国轻工业出版社,2013:1.[6] 陆婉珍. 现代近红外光谱分析技术[M]. 北京:中国石化出版社,2007:23.[7] 陈玥瑶,夏静静,韦芸,等. 近红外光谱法无损检测平谷产大桃品质方法研究[J]. 分析化学,2023,51(3):454-462.[8] 褚小立,史云颖,陈瀑,等. 近五年我国近红外光谱分析技术研究与应用进展[J]. 分析测试学报,2019,38(5):603-611.[9] Jerry Workman,Jr. Lois Weyer. 近红外光谱解析实用指南[M]. 褚小立,许育鹏,田高友,译. 北京:化学工业出版社,2009:87.
备注/Memo
- 备注/Memo:
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中国石油兰州石化公司资助项目(项目编号: LZSH 202221)
更新日期/Last Update:
2024-11-10