Discrimination and Classification of Sneaker Sole by Combination of Differential Raman Spectroscopy and Cluster Analysis

doi:10.19491/j.issn.1001-9278.2020.07.013

Abstract

Abstract:

In order to establish a fast, accurate and non?destructive method for distinguishing the sneaker soles, a differential Raman spectrometer combined with cluster analysis was used to examine the sole samples obtained from 40 different brands and different series of white sports shoes. The experimental results indicated that these samples could be divided into five categories according to the different main components of the sole samples. The same types of samples could be grouped according to the different main filler components added in the sole materials, and the same group of samples could be distinguished based on different relative peak height ratios of characteristic peaks. The data from these samples was processed by a cluster analysis method. When the parallel distance was 2, the samples were divided into five categories with an ideal classification result. This method was found to be simple and quick for operation, the obtained results were accurate and reliable, and there was no destruction in the inspected materials. The method developed by this work can provide help for police offices to handle the criminal cases.

Key words: differential raman spectroscopy, sole, filler, cluster analysis

CLC Number:

TQ322

Jin ZHANG, Hong JIANG, Jingshun ZHANG, Feng LIU, Bin DUAN. Discrimination and Classification of Sneaker Sole by Combination of Differential Raman Spectroscopy and Cluster Analysis[J]. China Plastics, 2020, 34(7): 80-85.

Figures/Tables 10

References 20

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分类	主要成分	样品编号
第Ⅰ类	EVA	1^#、3^#、8^#、9^#、10^#、11^#、12^#、14^#、16^#、17^#、18^#、20^#、21^#、22^#、23^#、24^#、26^#、27^#、28^#、29^#、31^#、32^#、33^#、35^#、38^#、39^#
第Ⅱ类	NR	2^#、4^#、7^#、13^#、19^#、25^#、30^#、36^#、40^#
第Ⅲ类	PVC	34^#、37^#
第Ⅳ类	BR	6^#、15^#
第Ⅴ类	SBR	5^#

分类	主要成分	样品编号
第Ⅰ类	EVA	1^#、3^#、8^#、9^#、10^#、11^#、12^#、14^#、16^#、17^#、18^#、20^#、21^#、22^#、23^#、24^#、26^#、27^#、28^#、29^#、31^#、32^#、33^#、35^#、38^#、39^#
第Ⅱ类	NR	2^#、4^#、7^#、13^#、19^#、25^#、30^#、36^#、40^#
第Ⅲ类	PVC	34^#、37^#
第Ⅳ类	BR	6^#、15^#
第Ⅴ类	SBR	5^#

填料名称	拉曼特征峰/cm^-1
碳酸钙	153、280、711、1 085
高岭土	140、393、636
二氧化钛	142、240、449、612
滑石粉	106、192、289、360、430、464、674、1 048、1 096
氧化锌	330、436
硫酸钡	279、459、616、986、1 085、1 138
二氧化硅	126、203、262、352、400、463

填料名称	拉曼特征峰/cm^-1
碳酸钙	153、280、711、1 085
高岭土	140、393、636
二氧化钛	142、240、449、612
滑石粉	106、192、289、360、430、464、674、1 048、1 096
氧化锌	330、436
硫酸钡	279、459、616、986、1 085、1 138
二氧化硅	126、203、262、352、400、463

分组	主要填料	样品编号
1	碳酸钙	9^#、31^#
2	滑石粉	1^#、24^#
3	高岭土	3^#、11^#、20^#、39^#
4	二氧化钛	14^#、28^#、38^#
5	滑石粉+高岭土	8^#、35^#
6	二氧化钛+二氧化硅	10^#、16^#、18^#
7	碳酸钙+二氧化钛	12^#、22^#、26^#
8	二氧化钛+氧化锌	23^#、27^#、29^#、33^#
9	滑石粉+氧化锌	17^#、21^#、32^#