Machine learning-assisted non-destructive plasticizer
Based on these general market trends, plasticizer identification could also serve as a rough estimate for the age of objects with unknown histories. Loss of plasticizers in PVC is a significant
Analytical methods for the determination of DEHP plasticizer
The choice of the extraction solvent is essential, and can partly predict the diffusion of the plasticizers due to its solubility parameters. Head-space (HS) extraction methods enable the identification and quantification of analytes from solid samples like PVC medical devices. HS methods are often coupled online with gas chromatography (HS–GC).
Machine learning-assisted non-destructive plasticizer
in plasticizer type and content, thickness, llers, stabilizers and other additives, degradation stage and storage history, so they are considered representative of objects in heritage collections
The Epoxidized Vietnam Rubber Seed Oil as a Secondary
Firstly, PVC and additives (see Table 1) were premixed at 100°C in a mixing device at a mixing speed of 2400 rpm for 10 min then cool quickly to 50°C and continue to mix for 5 min and then incubate at room temperature in 24 hours. Secondly, the Haake PoLylab System Rheomix was used to mix.
Extraction and identification of a plasticizer, di-(2
Extraction and identification of a plasticizer, di- (2-ethylhexyl)phthalate, from a plastic bag containing contaminated corn Huguette Cohen, Claude Charrier & Jacqueline Sarfaty Archives of Environmental Contamination and Toxicology 20 , 437–440 ( 1991) Cite this article 567 Accesses 7 Citations 3 Altmetric Metrics Abstract
- Can machine learning be used to identify plasticizers?
- Efficacy of ML algorithms such as CNN, RF, SVM, and LDA was critically evaluated. Vibrational spectroscopic techniques, such as Raman spectroscopy, as a non-destructive method combined with machine learning (ML), were successfully tested as a quick method of plasticizer identification in poly (vinyl chloride) − PVC objects in heritage collection.
- Can liquid-state NMR spectroscopy discriminate plasticizers in medical PVC products?
- Liquid-state NMR spectroscopy at a high magnetic field strength was identified as an outstanding method for this purpose and has been utilized to discriminate plasticizers precisely in commercial medical PVC products .
- Is plasticizer migration from PVC a problem?
- Therefore, plasticizer migration from PVC is a serious concern that can affect the long-term stability of plastic objects in art collections and cause the loss of their aesthetic value , .
- Can Raman spectroscopy be used to identify plasticizers in heritage objects?
- The main goal of this study is to test Raman spectroscopy combined with ML as a non-destructive method of plasticizer identification in objects made of PVC. From a long-term perspective, this might be developed into an accessible tool for conservators and practitioners to identify plasticizers in heritage objects.
- What spectroscopic techniques are used in plasticizers?
- In general, vibrational spectroscopic techniques such as infrared (IR) and Raman spectroscopy are widely employed , . Plasticizers can constitute up to 50 % of the total mass of PVC objects .
- How much plasticizer can be detected in PVC?
- With only four scans, detection limits down to 2.49 wt% of plasticizer in PVC were achieved by utilizing a simple workflow and non-deuterated solvents. This detection limit was only three times larger than in a comparative high-field NMR spectroscopy study [38, 51].
