A Strategy for 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...
Phthalate Plasticizers Covalently Bound to PVC: Plasticization with
The migration of phthalate esters which are commonly employed for plasticizing poly (vinyl chloride) (PVC) is a significant problem in PVC-based medical devices as well as in packaging used for food… Expand 22 Thermal stabilization and plasticization of poly (vinyl chloride) by ester thiols : Update and current status
Poly(vinyl chloride) plasticized with mixtures of succinate di-esters
In addition to the health and environmental concerns, phthalate plasticizers are petroleum-derived, which leads to a myriad of environmental and sustainability concerns [7]. One method to prevent migration of the plasticizer from PVC is to attach the plasticizer tbo the PVC backbone using covalent linkages.
Phthalate Plasticizers Covalently Bound to PVC: Plasticization with
PVC is per sea rigid material but it is made softer by compounding with plasticizers, particularly phthalate esters such as di- (2-ethylhexyl) phthalate (DEHP). In flexible plasticizer...
Plasticizers kept from leaching out - Science News
The sulfur bumped a chlorine atom aside, double-bonding the phthalate to the PVC backbone. The scientists then tested the material by putting it in a solvent that typically prompts migration of...
- How many phthalates are in PVC plastic?
- Phthalates are the most commonly used softeners or plasticizers in PVC plastic. Medical devices made from PVC normally contain 20–40 percent of plasticizer by weight. The content can be as high as 80 percent in feeding tubes. There are at least 15 different phthalates, all with similar properties.
- What is the best non Phthalate plasticizer for PVC?
- Eastman 168 is the preferred non-phthalate plasticizer for PVC, with performance equal to or better than most ortho-phthalate plasticizers. It offers good performance properties, optimal low-temperature flexibility, resistance to extraction by soapy water, and exceptional nonmigration properties.
- What is internal plasticization of PVC?
- The internal plasticization of PVC by displacement of chlorine with phthalate-based thiol additives, that is, the covalent attachment of the plasticizer to the PVC chain, is described for the first time.
- Why are phthalates used as plasticizers in PVC?
- Most of the phthalates that are used as plasticizers in PVC have chemical properties that mimic the behaviour of our natural hormones. This means that phthalates can disrupt the human hormone system. DEHP causes a reduction in the testicular weight of laboratory animals and is classified as a reproductive toxicant and teratogeniii.
- What is nonmigratory internal plasticization of poly(vinyl chloride) (PVC)?
- Nonmigratory internal plasticization of poly (vinyl chloride) (PVC) is achieved by synthesis of poly (vinyl chloride)-co -poly (4,5-bis (2-ethylhexyl)-1- [6-prop-2-enoyloxy)hexyl]-1H-1,2,3-triazole-4,5-dicarboxylate) [PVC- co-P (DEHT-HA)] copolymers via free radical polymerization (FRP).
- Who are the authors of plasticization of poly(vinyl chloride)?
- Carlos M.R. Abreu, Talita C. Rezende, Armenio C. Serra, Ana C. Fonseca, Rebecca Braslau, Jorge F.J. Coelho. Convenient and industrially viable internal plasticization of Poly (Vinyl chloride): Copolymerization of vinyl chloride and commercial monomers.
