Immobile plasticizer in flexible PVC - Nature
When the surfaces of flexible PVC sheets were similarly modified, we found that plasticizer migration could be prevented completely, as it was in PVC tubes. How-ever, modification led to a
Immobile plasticizer in flexible PVC | Nature
Plasticized poly (vinyl chloride) (PVC) is one of the most widely used polymeric materials in medical and related applications, and usually contains up to 40 per cent di- (2-ethylhexyl)phthalate...
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Bio-Based Plasticizers for Polyvinylchloride (PVC) | SpringerLink
The conventional petroleum-derived plasticizers used in many flexible PVC products are phthalate esters (also known as “phthalates”). The literature reported that phthalates represent more than 85% of world plasticizers production, of which 90% is annually used in PVC manufacturing . They are used in amount of maxim 40% from the overall
Plasticizers: Types, Uses, Classification, Selection & Regulation
A primary plasticizer enhances elongation, softness and flexibility of polymer. They are highly compatible with polymers and can be added in large quantities. For example: up to 50% of vinyl gloves are made up of plasticizers, which make the PVC flexible and soft enough to wear.
- Does flexible PVC reduce plasticizer leaching?
- In this study, the plasticizer migration from flexible PVC in contact with rigid PVC sheets was investigated. Various formulations of flexible PVC were compared, highlighting reduced plasticizer leaching when pPVC was chemically crosslinked or when the monomeric plasticizer, DEHP, was replaced with the polymeric plasticizer, PBA.
- What is a plasticizer in PVC?
- Introduction Plasticizers are additives that can improve the flexibility and workability of poly (vinyl chloride) (PVC) by forming secondary bonds (dipole–dipole interactions) with the polymer chains. The high density of the ends of the plasticizer chains introduces additional free volume into the PVC matrix .
- 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 important?
- Plasticizer is not only a processing aid but also an important component to determine the performance and application of PVC. Therefore, plasticizers are the most important commercial application of PVC. However, plasticizers can leach out of flexible PVC, changing the performance of PVC with age and contaminating the environment.
- What are flexible PVC (pPVC) formulations?
- Several flexible PVC (pPVC) formulations were compared in this study, including: pPVC@DEHP, using the monomeric plasticizer di (2-ethylhexyl) phthalate (DEHP); pPVC@PBA, using the polymeric plasticizer poly (butylene adipate) (PBA); and crosslinked pPVC (cPVC@DEHP), where isophorone diamine (IPDA) served as the crosslinker.
- Which plasticizers are used in flexible PVC?
- In flexible PVC formulations, esters derived from phthalic acid are the most common monomeric plasticizers, although other compounds based on various organic acids (phosphates, trimellitates, citrates, sebacates, and adipates) can also be used [6, 7].
