RSC Advances - Royal Society of Chemistry
crosslinking have been shown to successfully inhibit plasticizer migration.7 For example, peroxides, azides,8-10 sulfides,11 or acrylates have been used to modify the surface of flexible PVC materials. But the physicochemical properties of PVC materials will decline.11 Polymeric plasticizers and oligomers have a
US4045600A - Method of inhibiting plasticizer migration
Migration of plasticizer from plasticized PVC substrate is inhibited by coating the surface of the substrate by the steps of (1) applying to the surface of the plasticized polyvinyl chloride a...
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.
A potentially general approach to aliphatic ester-derived PVC
The safety of flexible polyvinyl chloride (PVC) materials is now being questioned, partially due to allegations that di-(2-ethylhexyl) phthalate (DEHP), the dominant PVC plasticizer, is an endocrine disruptor and a probable carcinogen. As sustainable alternatives, aliphatic ester-derived plasticizers feature
chloride) films prepared by multi-layer co- extrusion technology
helpful to inhibit plasticizer migration.6,7 Post treatment includes surface cross linking, surface modication and surface coating, which successfully inhibits plasticizer migration. 8–10
- Do plasticizers migrate?
- To observe the migration of plasticizers, the migration behaviour of the new DOP-like plasticizer in PVC was tested through extraction experiments with n-heptane at room temperature 35. As a comparison, migration of DOP was also measured under the same conditions.
- Can irradiated PVC reduce plasticizer migration by network formation?
- Hypothesis of irradiated, crosslinked, and plasticized PVC can reduce plasticizer migration by network formation, which is presented in Fig. 13. Azidation reactions are shown in Fig..14, which is practical for the surface derivatization of commercial PVC tubing .
- How can we measure plasticizer migration in coextruded PVC pipes?
- Technologically relevant for plasticizer migration studies in coextruded PVC pipes. This study introduces and validates an effective approach for monitoring the plasticizer amount and its concentration profile in polyvinyl chloride (PVC) formulations. The method combines gravimetric measurements with confocal Raman depth profiling analysis.
- 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.
- What is nonmigrating highly plasticized PVC?
- Nonmigrating highly plasticized PVC was prepared based on a new compound that acts as a plasticizer that was derived from di (2-ethylhexyl) 4-hydrophthalate and chlorinated paraffin-52. The as-prepared PVC has a plasticizing efficiency as high as DOP and its migration is totally suppressed.
- Why is plasticizer migration a threat to human health?
- Since the 1970s, scientists had discovered the DEHP would migrate to the blood from PVC blood bags, which caused blood contamination and potentially harmful to human health [, , , ]. Potential security issues caused by plasticizer migration have aroused widespread attention.
