Study of the migration of PVC plasticizers - ScienceDirect
The PVC resin was dispersed into the plasticizer and the thermal stabilizer in a high-speed mixer in the following proportions: 55.3% of PVC, 41.4% of plasticizer and 3.3% of the thermal stabilizer; mixing operation was carried out under vacuum in order to avoid the presence of air bubbles in the final product.
Migrability of PVC plasticizers from medical devices into a
Plasticizers are added to the PVC matrix to provide and maintain flexibility, increasing the matrix’s free volume by attenuating the attractive forces between the PVC chains (Bernard et al., 2014). Over the past few years, new concerns have been raised about the toxicological impact of the most frequently used PVC plasticizer in medical
Migrability of PVC plasticizers from medical devices into a
The plasticizers in the PVC matrix can leach out into the infused solutions and may enter into contact with the patients. In order to assess the risk of patient exposure to these plasticizers we evaluated the migration performance of DEHP, DEHT, DINCH, and TOTM using a model adapted to the clinical use of the MDs.
Migrability of pvc plasticizers | Semantic Scholar
This paper reviews the current trends in replacing commonly used plasticizers in poly (vinyl chloride), PVC, formulations by new compounds with reduced migration, leading to the enhancement in… Expand 29 PDF Biopolyurethane/Diethylhexyl Phthalate Hybrid Plasticizer for Flexible Polyvinyl Chloride C. Park, Jun Hyuk Jung, S. Kim Materials Science
Plasticizers for PVC | POLYNT
About Plasticizers for PVC. The plasticizers are organic substances with various characteristics, whose main function is to intercalate the rigid polymer structures of material such as PVC for an easy movement and flexibility, making them more precisely "plastics." The presence of plasticizers in the PVC structure will influence different
- Can PVC plasticizers migrate to a polymer in contact with flexible PVC?
- The ability of different PVC plasticizers to migrate towards a polymer in contact with flexible PVC has been investigated. A procedure based on the monitoring of the plasticizer concentration by infrared spectroscopy has been employed.
- Why is plasticizer migration a problem?
- The plasticizer migration from the plastic item to its surroundings may involve the appearance of problems, namely the modification of flexibility of the PVC and the contamination of the media in contact with PVC.
- Do plasticizers migrate from PVC to DOP?
- As expected, the migration of plasticizers was equal to zero. Mechanical properties of the material with modified PVC were compared to a material plasticized by DOP. The commonly used plasticizer provided significantly lower tensile strength and higher elongation at break than the modified one.
- How do we detect plasticizer migration from PVC synthetic materials?
- To this end, this review is compiled as a general review of the methods now available for detecting plasticizer migration from PVC synthetic materials via three different mechanisms (i.e., volatilization, exudation, and extraction), with an emphasis on the instrumentation, methodology, advantages, and limitations of each method.
- How can PVC plasticizers be released from flexible PVC?
- PVC plasticizers can be released from flexible PVC in several ways: through volatilization from the PVC surface to the air, extraction to a liquid in contact, migration to a solid or semi-solid in contact, and exudation under pressure.
- Do plasticizers migrate from PVC to distilled water?
- Nevertheless, plasticizer migration from PVC blends with only one plasticizer, including extraction in distilled water, exudation and volatility, was investigated, showing the highest volatility of PVC/CA (about three times higher than for PVC/DOTP) and comparable extraction in distilled water.
