Migration of phthalate and nonâphthalate plasticizers out
The plasticized PVC (p-PVC) films are obtained by gelation at 160°C for 15 min. The p-PVC films were heat treated at 50, 85, 100, 130, and 160°C up to 420 min to follow the mass loss to find out diffusivity of plasticizer out of films into air and to determine related activation energies.
Methods for determination of plasticizer migration
In general, plasticizer migration from PVC synthetic materials can proceed via three different mechanisms, namely volatilization, exudation or extraction, depending on the environment where the PVC coatings are located.
J. Braz. Chem. Soc. Article - ResearchGate
74 Migration of Phthalate-based Plasticizers from PVC and non-PVC Containers and Medical Devices J DEHP alone, the mobile phase was acetonitrile:methanol (9:1, -1v/v) at a flow rate of 0.8 mL min
Study of the migration of PVC plasticizers | Semantic Scholar
Migration of phthalate and non-phthalate plasticizers out of plasticized PVC films into air A. Demir, S. Ulutan Materials Science 2012 The aim of the present work is to provide information about the migration of phthalate and non-phthalate plasticizers generally used in flexible polyvinyl chloride (PVC) applications. Plastisols⌠Expand 68
Plasma treatment reduces migration of plasticizers from blood
The researchersâ tests showed that plasticizer migration from soft PVC could be reduced by 95 percent. To determine the barrier effect, the treated PVC films are stored in n-decane, a solvent, for two hours to identify the quantity of migrated plasticizers. To test the long-term stability of the barriers, the treated soft PVC films were
- Do plasticizers migrate from PVC products?
- Due to the tendency of plasticizers like di-2-ethylhexyl phthalate (DOP) and bis (2-ethylhexyl)adipate (DOA) to migrate from PVC products, which pose serious health risks, and have therefore been increasingly restricted in many countries. Enhancing the migration resistance of plasticizers in PVC remains a critical challenge.
- Are phthalate plasticizers better than phthalates?
- Phthalate plasticizers contact with an unplasticized surface showed more easier to migration. The further studies suggested that all ILs showed good thermodynamic compatibility, excellent leaching and migration resistance than phthalates .
- Does PVC have phthalate based plasticizers?
- DEHP is also found in PVC medical devices, subject to scrutiny from European authorities [ 20 ], resulting in strict controls over its use. based plasticizers originating from PVC products is increasing. Further, as the detection migration of phthalate-based plasticizers from PVC items has raised additional alarms.
- Which phthalate is used in plasticizers?
- Dioctyl phthalate (DEHP) as one of the mostly used phthalates, accounts for more than 50 % of phthalate ester plasticizers. PVC products plasticized with DEHP have been widely used to produce medical products since 1955.
- Do polymeric plasticizers migrate?
- The related researches on polymeric plasticizer and macromolecule plasticizers mainly focus on molecular structure design and migration in different solvents [, , ]. It is effective to prevent plasticizers migration via introducing branched chains and polar groups in their chemical structure [78, 79].
- Does PBA absorption affect plasticizer migration from flexible PVC?
- Integrating the profiles in terms of weight ratios, it is found that DEHP is adsorbed 300 % more than PBA, which justifies that gravimetry is insensitive towards PBA absorption. 4. Conclusions In this study, the plasticizer migration from flexible PVC in contact with rigid PVC sheets was investigated.
