Plasticizers

Plasticizers

Plasticizers (pronunciation: /ˈplastɪsaɪzər/) are additives that increase the plasticity or fluidity of a material. The term 'plasticizer' is derived from the word 'plastic', which comes from the Greek word 'plastikos', meaning 'capable of being shaped or molded'.

History

The use of plasticizers dates back to the mid-19th century when castor oil was used to soften rubber. The modern understanding and use of plasticizers, however, began in the early 20th century.

Types of Plasticizers

There are several types of plasticizers, each with unique properties and uses. Some of the most common types include:

• Phthalates: These are the most commonly used plasticizers and are known for their good performance and low cost.
• Adipates: These are often used when improved low-temperature performance is required.
• Trimellitates: These are used in applications that require high-temperature resistance.
• Polymeric plasticizers: These offer permanence and improved resistance to solvents.

Uses

Plasticizers are used in a wide range of applications, including:

• PVC production: Plasticizers are used to soften PVC, making it more flexible and easier to process.
• Adhesives and sealants: Plasticizers are used to improve the flexibility and workability of these products.
• Paints and coatings: Plasticizers are used to improve the flow and leveling properties of these products.

Health and Environmental Concerns

Some types of plasticizers, particularly phthalates, have been associated with potential health and environmental concerns. As a result, there has been a shift towards the use of non-phthalate and high molecular weight plasticizers.

See Also

• Polyvinyl chloride
• Phthalate
• Adipate
• Trimellitate
• Polymeric plasticizer

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