Diverging trends of plasticizers (phthalates and non
Plasticizer selection: legacy phthalates and substitutes of DEHP At present, about 50 substances with plasticizing properties are in commercial use [ 60 ]. Used in combination or individually, plasticizers improve flexibility, extensibility and processability of polymer plastics [ 23 ].
Handbook of Plasticizers - 3rd Edition
6.3 methods of plasticizer selection based on principles of compatibility; 6.4 practical approaches in using theory of compatibility for plasticizers selection; 6.5 experimental data illustrating effect of compatibility on plasticized systems; chapter 7: plasticizer motion and diffusion . 7.1 plasticizer diffusion rate and the methods of study
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
PVC Plasticizer Selection Strategies
Anyone with a need to know how PVC formulations are varied to achieve a cost/performance optimized compound Outline 1. PVC plasticization theory 2. Strategy 1: Compounding for performance o Resin and plasticizer dominant properties o The plasticizer performance spectrum o The chemistry and structure of the commercial can pose questions to
A targeted review of bio-derived plasticizers with flame
For decades, a wide variety of products have benefitted from the use of flexible PVC, ranging from healthcare to cable to packaging & household items. The uniqueness of PVC rises from its growth as polymer from monomers and the final structure. Due to the presence of chlorine atoms, PVC is inherently flame retardant, but it cannot always meet all fire safety requirements and maintain a needed
- Can phthalate be used as a secondary plasticizer in PVC?
- In this study, we attached DOP to chlorinated paraffin (CP), acting as a secondary plasticizer in PVC, to prepare a new compound giving PVC highly plasticization without migration. Unlike other reported methods, our approach covalently attaches phthalate to chlorinated paraffin, a low molecular weight compound with a structure similar to PVC.
- Do Plasticizers improve the migration resistance of plasticized PVC material?
- This indicates that a moderate increase in the relative molecular weight of the plasticizer can effectively improve the migration resistance of the plasticized PVC material, a finding consistent with the results from the resistance tests. There has been no clear evidence observed regarding the plasticization process of plasticizers in PVC.
- Is PVC a plasticizer?
- The low molecular weight compound was defined as a plasticizer by The Council of the International Union of Pure and Applied Chemistry. Internally plasticized PVC can maintain its performance over long-term use because there is no plasticizer migration.
- What makes a good plasticizer?
- A good plasticizer must blend uniformly with the PVC matrix, ensuring that it does not phase-separate or lead to inconsistency in the material properties. An effective means to evaluate compatibility is through the analysis of: Solubility: The plasticizer should dissolve in PVC without forming precipitates.
- Are green plasticizers good for PVC?
- The new blends of PVC made with green plasticizers show attractive properties in terms of thermal stability, migration resistance, mechanical properties, etc. making them appropriate for the medical and industrial applications.
- Which plasticizer has a low plasticizing efficiency?
- Polymeric plasticizer generally has low plasticizing efficiency. Navarro et al. 35 replaced the chlorine on the PVC backbone via nucleophilic substitution of thiol groups attached to the benzene ring of di (2-ethylhexyl)phthalate (also known as dioctyl phthalate, DOP, the most common plasticizer), to give totally nonleachable PVC.
