{"title":"确定压敏胶带证据的存储:长期研究。","authors":"Susan T. Gross MSFS","doi":"10.1111/1556-4029.15590","DOIUrl":null,"url":null,"abstract":"<p>Tape is a type of trace evidence commonly seen in forensic science. Little to no research has been published regarding the optimal storage material for pressure-sensitive adhesive (PSA) tape. The purpose of this project was to determine the substrate with the least amount of interference for storing PSA tape. Interferences such as difficulty removing tape from the substrate or substrate components leaching into the adhesive can affect the analysis. This was a long-term study in which samples were stored on various substrates for nearly 10 years. Ten different tape samples were placed on eight different substrates for a total of 80 samples. The substrates included typical materials currently used for tape storage as well as other, less common materials. The tape samples were evaluated for ease of removal at various time intervals. The adhesives from each tape were analyzed at similar time intervals by Fourier transform infrared spectroscopy (FTIR). In addition, the adhesives were analyzed by pyrolysis gas chromatography–mass spectrometry (PyGC-MS), scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS), and x-ray fluorescence (XRF) at the last time interval (112 months) and compared to the adhesive tape samples from the original rolls of tape to determine if there was any adverse effect from the substrates during storage. The FedEx backing was the only substrate that had no adverse effects regarding ease of removal. The substrates that had the least effect on the adhesive for both short-term and long-term storage included FedEx backings, adhesive sheet backings, and polyester transparency sheets.</p>","PeriodicalId":15743,"journal":{"name":"Journal of forensic sciences","volume":"69 6","pages":"2240-2257"},"PeriodicalIF":1.5000,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Determining storage for pressure-sensitive tape evidence: A long-term study\",\"authors\":\"Susan T. Gross MSFS\",\"doi\":\"10.1111/1556-4029.15590\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Tape is a type of trace evidence commonly seen in forensic science. Little to no research has been published regarding the optimal storage material for pressure-sensitive adhesive (PSA) tape. The purpose of this project was to determine the substrate with the least amount of interference for storing PSA tape. Interferences such as difficulty removing tape from the substrate or substrate components leaching into the adhesive can affect the analysis. This was a long-term study in which samples were stored on various substrates for nearly 10 years. Ten different tape samples were placed on eight different substrates for a total of 80 samples. The substrates included typical materials currently used for tape storage as well as other, less common materials. The tape samples were evaluated for ease of removal at various time intervals. The adhesives from each tape were analyzed at similar time intervals by Fourier transform infrared spectroscopy (FTIR). 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引用次数: 0
摘要
胶带是法医学中常见的一种痕迹证据。关于压敏胶(PSA)胶带的最佳储存材料,几乎没有任何研究成果。本项目的目的是确定对储存 PSA 胶带干扰最小的基质。从基材上取下胶带困难或基材成分浸入胶粘剂等干扰都会影响分析结果。这是一项长期研究,样品在不同的基底上存放了近 10 年。十种不同的胶带样品被放置在八种不同的基底上,共计 80 个样品。这些基材包括目前用于磁带存储的典型材料以及其他不太常见的材料。在不同的时间间隔内对胶带样本的易撕性进行了评估。在类似的时间间隔内,用傅立叶变换红外光谱(FTIR)对每种胶带的粘合剂进行分析。此外,在最后一个时间间隔(112 个月),通过热解气相色谱-质谱法(PyGC-MS)、扫描电子显微镜与能量色散光谱法(SEM-EDS)和 X 射线荧光法(XRF)对粘合剂进行分析,并与原始胶带卷的胶带样本进行比较,以确定储存期间基材是否会产生任何不利影响。联邦快递背衬是唯一一种在易撕性方面没有不良影响的基材。在短期和长期储存中对粘合剂影响最小的基材包括联邦快递背胶、胶片背胶和聚酯透明片。
Determining storage for pressure-sensitive tape evidence: A long-term study
Tape is a type of trace evidence commonly seen in forensic science. Little to no research has been published regarding the optimal storage material for pressure-sensitive adhesive (PSA) tape. The purpose of this project was to determine the substrate with the least amount of interference for storing PSA tape. Interferences such as difficulty removing tape from the substrate or substrate components leaching into the adhesive can affect the analysis. This was a long-term study in which samples were stored on various substrates for nearly 10 years. Ten different tape samples were placed on eight different substrates for a total of 80 samples. The substrates included typical materials currently used for tape storage as well as other, less common materials. The tape samples were evaluated for ease of removal at various time intervals. The adhesives from each tape were analyzed at similar time intervals by Fourier transform infrared spectroscopy (FTIR). In addition, the adhesives were analyzed by pyrolysis gas chromatography–mass spectrometry (PyGC-MS), scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS), and x-ray fluorescence (XRF) at the last time interval (112 months) and compared to the adhesive tape samples from the original rolls of tape to determine if there was any adverse effect from the substrates during storage. The FedEx backing was the only substrate that had no adverse effects regarding ease of removal. The substrates that had the least effect on the adhesive for both short-term and long-term storage included FedEx backings, adhesive sheet backings, and polyester transparency sheets.
期刊介绍:
The Journal of Forensic Sciences (JFS) is the official publication of the American Academy of Forensic Sciences (AAFS). It is devoted to the publication of original investigations, observations, scholarly inquiries and reviews in various branches of the forensic sciences. These include anthropology, criminalistics, digital and multimedia sciences, engineering and applied sciences, pathology/biology, psychiatry and behavioral science, jurisprudence, odontology, questioned documents, and toxicology. Similar submissions dealing with forensic aspects of other sciences and the social sciences are also accepted, as are submissions dealing with scientifically sound emerging science disciplines. The content and/or views expressed in the JFS are not necessarily those of the AAFS, the JFS Editorial Board, the organizations with which authors are affiliated, or the publisher of JFS. All manuscript submissions are double-blind peer-reviewed.