Methods for determination of plasticizer migration
Plasticizer migration is responsible for premature coating failure in polyvinyl chloride (PVC) synthetic materials that continue to benefit our daily life as a reliable and cost-efficient simulant of genuine leather. In this context, the establishment of standard assays that measure the migration rate of plasticizers under varying scenarios plays a pivotal role in comparing durability of those
Common Signs Of Plasticizer Migration - Chaffee Industrial
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. If you can see the roofing material lifting in places, especially at the edges, then you have a problem.
Know your Plasticizers: A New Study on Plasticizer Migration
In such applications, according to the study, certain plasticizers can cause softening, cracking, or other defects in the non-PVC components as they migrate across the interface between the PVC and the connecting material. In contrast, other plasticizers exhibit little or no effect.
PVC Plasticizer Migration - Chaffee Industrial Roofing
Plasticizer migration occurs as a result of the PVC membrane formulation. Most PVC products, like PVC pipe, PVC trim, and PVC decking, are solid, rigid products. In order to make PVC a flexible membrane sheet, the formulation needs to be altered.
Plasticizer Migration - an overview | ScienceDirect Topics
plasticizer migration to optical fiber coating may result in decreased coating adhesion and possible delamination5. leaching of plasticizer may cause degradation of properties of encapsulated fiber in telecommunication cable 14. when diisooctyl phthalate was used in telecommunication cable strip force was reduced by 90% after 6 months aging at
- What happens if a plasticizer migrates?
- Serious migration may result in substantial loss of plasticizer with resultant stiffening of the PVC. An example of plasticizer migration is softening of nitrocellulose or acrylic lacquer following prolonged contact with plasticized PVC.
- What is plasticizer migration?
- Plasticizer migration is the unwanted net movement of a plasticizer component out of a compound (like an adhesive or plastic). It can occur through gas volatilisation, liquid extraction, or solid migration. Collectively these are known as plasticizer migration. Plasticizers are often put into materials to make them more flexible or malleable.
- Can plasticizer migration cause flooring failures?
- Photo: Gary Sheidker. Plasticizer migration is a common cause of flooring failures. Plasticizers can come from the flooring, sound control underlayment, maintenance products and even some concrete substrates. These plasticizers can attack the polymers in some adhesives, causing them to degrade over time.
- Why do plasticizers migrate from PVC to adhesives?
- Plasticizers are often put into materials to make them more flexible or malleable. As an example, PVC is heavily-plasticized to increase its flexibility. So when bonding PVC with adhesives, those plasticizers can migrate from the PVC into the adhesive. Plasticizer migration is more likely to happen in certain circumstances.
- Does plasticizer migration affect adhesive performance?
- Plasticizer migration can cause other additives to migrate too. Typical examples of these additives are UV stabilisers or Anti-Oxidants. If plasticizer migration causes these additives to migrate, the overall performance of the adhesive will deteriorate. There are several occasions where plasticizer migration can have aesthetic effects.
- Can plasticizer migration cause environmental stress cracking?
- Migration of plasticizers through these other components to the surface of a plastic under stress is a likely culprit to blame for environmental stress cracking. So in the right conditions, plasticizer migration can cause environmental stress cracking to take place. A plasticizer’s main purpose is to increase a product’s flexibility.
