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Plasticizers: Types, Uses, Classification, Selection & Regulation
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- What is a primary plasticizer?
- 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.
- How do polystyrene microplastics Leach phthalate acid ester plasticisers?
- Diphenol and phthalate acid ester plasticiser leaching from polystyrene microplastics displayed different leaching dynamics. Polymeric free volume and the hydrophobicity of the plasticiser influenced leaching. Water agitation and temperature enhanced leaching. Smaller microplastics leached more plasticiser.
- What are plasticisers used for?
- Plasticisers are some of the most common plastic additives incorporated into polymers during manufacturing, and are used to enhance polymer flexibility, elasticity and plasticity (Geyer et al., 2017).
- Why are plasticizers used in polyvinyl chloride?
- Plasticizers increase the flow and thermoplasticity of a polymer. This is done by decreasing the viscosity of the polymer melt, Tg, Tm, and elastic modulus of the finished product. During this process, the fundamental chemical character of the plasticized material remains unaltered. Plasticizers are most often used in Polyvinyl chloride.
- How to choose a general-purpose plasticizer for PVC?
- While selecting a general-purpose plasticizer for PVC, the main attributes to be checked are: Among them, regulation is an important decision factor while selecting plasticizers. In recent years, there has been a lot of discussion on phthalate plasticizers. But in fact, not all phthalates are prohibited.
- What is a polymeric plasticizer?
- Polymeric plasticizers are typically made from aliphatic dibasic acids such as adipic acid and diols. They are primarily valued for their permanence. These plasticizers are generally classified as polyesters, not adipates. Many have low solvency for PVC and high viscosity. Both these factors can make processing f-PVC compounds difficult.
