In recent years, the application of anti-static masterbatch in styrene polymers (polystyrene, impact-resistant polystyrene) has been increasing. Unlike polyolefins, the dosage of antistatic agents in these substrates must be as high as 4% for good activity. Thus, with the exception of special products such as video casings, instrument casings, etc., cost factors limit this application.
In what is commonly known as engineering plastics (including polyethylene terephthalate, polycarbonate, and polysulfone) and polyacrylates, additive anti-static masterbatch has not found any use for two main reasons. First, these materials are formed at high, sometimes very high temperatures; Second, many of these materials have important intrinsic properties (such as the transparency of polymethacrylate and polycarbonate) that cannot be compromised under any circumstances.
For products used in environments where there is a risk of fire or explosion, filling with carbon black is increasingly used to obtain high electrical conductivity. For example, packaging materials for explosives, transmission belts for tunnels, and plastic floor materials for public activity places and chemical production plants.