A Strategy for Nonmigrating Highly Plasticized PVC - Nature
Phthalate esters are still the most powerful plasticizers and dominate the plasticizer market due to their great plasticizing effect and low-cost, although phthalate plasticizers can migrate to...
Plasticiser loss from plastic or rubber products through
Plasticisers are commonly added to polymers to lower their glass transition temperature and increase their processability, mechanical flexibility, ductility and toughness. 1, 2, 3, 4, 5 They...
Wheat bran addition as potential alternative to control the
often involves problems related to the plasticizer release during the plastic’s life via migration of liq-uids or volatilization [35, 36]. The plasticizer migra-tion can affect the human health and can contaminate soils and water [37, 38]. There are special cases in which the migration is desired and controlled like for
Plasticizers – Benefits, Trends, Health, and Environmental
Plasticizers are colorless and odorless esters, mainly phthalates, that increase the elasticity of a material (e.g., polyvinylchloride (PVC)). Plasticizers soften the PVC to make it flexible and bendable. This opens up a huge range of possibilities for new applications. One of the main benefits of plasticizers is the durability they confer onto
Common Signs Of Plasticizer Migration - Chaffee Industrial
Combining plasticizer migration with foul weather means disaster for your roof. Early spotting of the common signs of plasticizer migration helps protect your roof. Let’s take a look at some of the telltale indicators. Lifting at the edges is a bad sign Take a look at your PVC roof.
- 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.
- 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.
- Do plasticisers migrate from polymers to a gas phase?
- This paper addresses the kinetics and predictions of plasticiser migration from polymers to a surrounding gas phase, an important issue for plastic and rubber products exposed to high service temperature conditions and during accelerated ageing and testing.
- How is plasticizer migration controlled?
- Thus, plasticizer migration is controlled by both diffusion coeffi- cients at the same time as by the mass transfer between both phases (PVC and polystyrene), given by a partition coefficient. Due to the fact that this is a non-lineal problem, it is necessary to use a numeric procedure, as for example the finite differences method.
- What determines the degree of plasticizer migration?
- The degree of plasticizer migration depends on the compatibility of the plasticizers with PVC, the polarity and structure of the plasticizer, temperature, and the surrounding media, and other conditions.
- 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.
