Extraction of plasticizers: An entire and reproducible
To be always sure that the plasticizers extraction of various CA samples is total, four extractions with methanol were chosen for all further quantifications. 5. Quantification. Following the extraction method above, the four extracts of a sample were collected in a 25 mL volumetric flask and filled up with methanol to the calibration mark.
WO2001037356A1 - Apparatus and method for extracting
An apparatus (100, 200, 300) and method for extracting plasticizer from polymer structures includes an evacuation chamber (102, 204), a heat source (144, 208, 312) and a cooling chamber (148) are all coupled to a conduit having a motorized fan (316) for cycling gases through the components.
Apparatus and method for extracting plasticizer - Google
An apparatus and method for extracting plasticizer from polymer structures includes, in one embodiment, a vacuum chamber, a heating member and a condenser, the plasticizer being vaporized from...
Accelerated Solvent Extraction of Plasticizers from Polyvinyl
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 validation. Conclusion This Application Note demonstrates that, for the extraction of the plasticizers discussed above
US Patent for Apparatus and method for extracting plasticizer
An apparatus and method for extracting plasticizer from polymer structures includes, in one embodiment, a vacuum chamber, a heating member and a condenser, the plasticizer being vaporized from the polymer structure by a combination of low temperature and heat, and in another embodiment, an evaporation chamber, a conveyer belt, and a plasticizer removal system, the plasticizer removal system
- 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.
- 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.
- 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.
