Analytical methods for the determination of DEHP plasticizer
Plasticizers are by far the most common additives because they are less expensive than the others used in polymer processing and applications (e.g., flame retardants, heat stabilizers, lubricants, organic peroxydes, etc.).
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
Extraction of plasticizers: An entire and reproducible
After each extraction step, resulting extract was analysed by GCMS for remaining plasticizers. This was considered to be important for a reliable quantitative analysis. The analysis was performed by a Shimadzu GCMS-QP2025 with direct inlet and a DB5 column (30 m x 0.25 mm x 25 μm).
Specialty Plasticizers for Rubber/Elastomers | Hallstar
Plasthall 7050 – Fuel B resistance, LT, HT, oil resistance, limited use with low ACN. Poor water resistance. Plasthall 83SS – Fuel C resistance, LT, HT. Plasthall 4141 – Good unaged and heat aged LT, #3 oil resistance, FDA Regulation 177.2600. Good for low ACN Plasthall 7006 – Comparable to TP-90B, especially good LT in peroxide cured NBR.
US6223449B1 - Apparatus for extracting plasticizer - Google
Apparatus for extracting plasticizer Abstract An apparatus for extracting plasticizer from polymer structures includes, in one embodiment, a evacuation chamber, a heat source and a cooling...
- 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.
