What are Plasticiser?

Plasticisers (UK: Plasticizers or dispersants) are additives that increase the plasticity or fluidity of a material. The dominant applications are for plastics, especially polyvinyl chloride (PVC). The properties of other materials are also improved when blended with plasticizers including concrete, days, and related products.

Plasticizers used in PVC and other plastics are often based on esters of polycarboxylic acids with linear or branched aliphatic alcohols of moderate chain length.

These compounds are selected on the basis of many criteria including low toxicity, compatibility with the host material non-volatility, and expense. Phthalate esters of straight-chain and branched chain alkyl alcohols meet these specification and are common plasticizers. Ortho-phthalate esters have traditionally been the most dominant plasticizers, but regulatory concerns have led to pressure to change to non-phthalate plasticizers especially in Europe.