Plasticizers are substances that are added to plastics to increase their flexibility and durability. The spelling of this word can be explained using the International Phonetic Alphabet (IPA) transcription, which is /ˈplæs.təˌsaɪ.zərz/. The first syllable, "plas," is pronounced with a short "a" sound, while the second syllable, "ti," is pronounced with a reduced vowel sound. The third syllable, "ci," is pronounced with a "s" sound, and the final syllable, "zers," is pronounced with a "z" sound followed by a reduced "uh" sound.
Plasticizers are chemical substances that are added to various materials, primarily polymers, to enhance their flexibility, durability, and workability. They are commonly used in the production of plastics, rubber, and other materials to make them more malleable and easier to shape and mold.
The main purpose of plasticizers is to reduce the stiffness and brittleness of these materials by creating space between the polymer chains, which allows them to move more freely. This increases the material's ability to stretch, bend, and withstand mechanical stress without breaking or cracking. Plasticizers also improve the material's resistance to temperature changes, preventing it from becoming brittle in low temperatures and overly soft in high temperatures.
There are different types of plasticizers available, including phthalates, adipates, citrates, and many others. Each type has specific properties and is chosen based on the desired characteristics of the material. Plasticizers are often added during the manufacturing process, either by directly blending them with the polymer or by incorporating them into a plastisol, a liquid form of the material that solidifies upon heating.
While plasticizers offer numerous benefits, they have raised concerns in recent years due to potential health and environmental effects. Some studies have linked certain plasticizers, such as phthalates, to adverse health effects, including hormonal disruptions and developmental issues. As a result, efforts have been made to find and use safer alternatives to traditional plasticizers in various industries.
The word "plasticizers" is derived from the noun "plastic", which comes from the Greek word "plastikos" meaning "capable of being shaped or molded". In chemistry and materials science, "plastics" refer to a group of synthetic materials that can be molded into various shapes. The suffix "-izer" is added to "plastic" to form the noun "plasticizer", which refers to a substance added to plastics or polymers to increase their flexibility, durability, or workability. The word "plasticizer" emerged in the early 20th century to describe these substances used in the manufacturing of plastics.