A plasticizer is a substance that is added to a material, typically a polymer, to increase its flexibility, workability, and durability. It functions by reducing the intermolecular forces and improving the mobility of the polymer chains, allowing them to slide past each other more easily. This results in enhanced deformability, softness, and pliability of the material.
Plasticizers are commonly used in the manufacturing of various products, such as plastics, rubbers, paints, adhesives, and coatings, to enhance their physical properties. They are typically added during the production process and can be either chemically bound to the polymer or physically mixed with it. Phthalates, such as diethylhexyl phthalate (DEHP), are widely used plasticizers due to their excellent plasticizing effects.
The use of plasticizers offers several advantages, including increased flexibility, decreased brittleness, improved impact resistance, and reduced processing temperatures. Additionally, plasticizers can contribute to the material's resistance against heat, light, and aging. They are crucial in creating products that require flexibility, such as plastic films, PVC pipes, artificial leather, and wire insulation.
However, it is important to note that some plasticizers, particularly phthalates, have been associated with potential health and environmental concerns. Therefore, there is a growing demand for alternative plasticizers that offer similar benefits without the associated risks.
