Comparison of high-performance liquid chromatography and
Extraction of plasticizers from plasticized-PVC. The ability of the method to measure the amount of plasticizer from plasticized-PVC was assessed using standard PVC tubings kindly gifted by Raumedic GmbH (Helmbrechts, Germany) and using standard PVC plates of 2 mm thickness purchased from Floridienne Chimie (Ath, Belgium). Each PVC tubing
Accelerated Solvent Extraction of Plasticizers from Polyvinyl
solvent extraction or Soxhlet conditions described above. AN70640_E 07/13S Application Note 336 Method Validation When developing extraction methods, one way to validate extraction efficiency is to re-extract the same sample and check for remaining analytes. The Dionex ASE system allows the analyst to automate re-extraction for easy method
Current Status of Plasticizer Research | SpringerLink
DPHP plasticization grants PVC with a better low-temperature tenacity than DOP and with a lower brittle temperature than DIDP, indicating the better low-temperature performance of DPHP. Based on its high mechanical performance, DPHP can be used in PVC as a primary plasticizer.
Quantification of five plasticizers used in PVC tubing
The extraction yields of plasticizers (from 91 to 120%) were similar to results presented in our paper (from 91 to 104%), but with greater variability. Our extraction method demonstrates that it is possible to estimate the amounts of plasticizer in PVC tubing for all the plasticizers tested and should be suitable as a screening method for
Plasticizers: Types, Uses, Classification, Selection & Regulation
The most widely used internal plasticizer monomers are: Vinyl acetate Vinylidene chloride But this technique is limited: every copolymer is only suited to certain flexibility requirements Also, the complexity of the reaction can lead to longer reaction times and increased costs.
- How are plasticizers extracted from PVC?
- Plasticizers may account for 30–35% of the PVC formulation. Extraction and determination of plasticizers in PVC material are critical steps in evaluating a polymer for an intended use. Traditionally, plasticizers are extracted from PVC using a 6-h Soxhlet method and identified using infrared spectrometry or gas chromatography.
- What is a plasticizer in PVC?
- Plasticizers soften the polymer, aid in the manufacturing process, and provide form and function to various PVC materials. Plasticizers may account for 30–35% of the PVC formulation. Extraction and determination of plasticizers in PVC material are critical steps in evaluating a polymer for an intended use.
- What is accelerated solvent extraction?
- Accelerated solvent extraction is recognized as an oficial extraction method in U.S. EPA Method 3545. This Application Note outlines the basic principles of using accelerated solvent extraction to extract plasticizers such as dioctyl adipate (DOA), trioctyl phosphate (TOP), dioctyl phthalate (DOP), and trioctyl trimellitate (TOTM) from PVC.
- How are PVC samples extracted?
- PVC samples were extracted using a 6-h Soxhlet extraction method (ASTM D 2124) and the accelerated solvent extraction method described above. Both methods used petroleum ether as the extraction solvent. Each extract was thoroughly dried, reconstituted using methy-lene chloride, and analyzed using the GC method described above.
