Migration of plasticizers in flexible crosslinked PVC
Abstract In this paper, the migration of three kinds of plasticizers (terephthalate, citrate, phthalate) in flexible crosslinked PVC was studied in 40°C olive oil. The results show that...
Plasticiser loss from plastic or rubber products through
The migration of plasticiser from polymers to a gas phase is a two-step process that includes diffusion from the polymer bulk to the surface followed by evaporation from the surface to the...
Plasticizer migration from cross‐linked flexible PVC: Effects
Chemical modification of PVC structure is one of the most effective tools for reduction of plasticizer diffusion. In this work, a flexible dry blend based on cross-linked PVC was obtained using a difunctional amine, namely isophoron diamine (IPDA) as the cross-linking agent.
Plasticizer migration from cross-linked flexible PVC
Chemical modification of PVC structure is one of the most effective tools for reduction of plasticizer diffusion. In this work, a flexible dry blend based on cross-linked PVC was obtained...
Migration of plasticizers from poly(vinyl chloride) and
In addition, we evaluated the migration of plasticizers from PVC raw materials (film and grain) under controlled conditions to compare the migration levels according to Regulation 2011/10. Solid phase extraction and liquid-liquid extraction with gas-chromatography coupled to mass spectrometry were used in all tests.
- Do plasticizers migrate in flexible crosslinked PVC?
- In this paper, the migration of three kinds of plasticizers (terephthalate, citrate, phthalate) in flexible crosslinked PVC was studied in 40°C olive oil. The results show that the migration ratio increases with time, and increases quickly in initial 24 h, and then tends to be gently after 192 h, which can be attributed to two reasons.
- Does plasticizer migration affect cross-linker loading?
- caused by the plasticizer migration. Nevertheless, the turned out to be independent of the cross-linker loading. B2, and B3. This behavior was attributed to the compara- samples. TABLE 2. Weight percentage of gel and cross-linking density values for flexible PVC samples. FIG. 2. Migration tests. Weight change of rigid PVC sheets after being
- What is the migration of plasticizer?
- Migration of the plasticizer ues by a whole order of magnitude. The migration of at the interface . values. Since only DOP after a long-term aging. cross-linking agent for PVC dry blends. The increase of rable cross-linking densities. ing the mechanical properties of flexible PVC.
- Can plasticizers migrate from a PVC film to another polymer?
- The present work introduces a procedure to monitor plasticizers migration from a PVC film to another polymer with which it is in contact. The applicability of the procedure has been demonstrated using nine different plasticizers of three types: phthalates, adipates, and citrates.
- How does crosslinked PVC affect plasticizer uptake?
- Crosslinked PVC exhibits a more complex behaviour: an induction period is observed in this case. followed by a sudden increase of the plasticizer uptake, likely related to the gradual relaxation of the gelled regions. When the plasticizer is of polymeric nature, the migration process slows-down considerably and the total uptake lowers.
- How to reduce plasticizer diffusion?
- Chemical modification of PVC structure is one of the most effective tools for reduction of plasticizer diffusion. In this work, a flexible dry blend based on cross-linked PVC was obtained using a difunctional amine, namely isophoron diamine (IPDA) as the cross-linking agent.
