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Antistatic agents are also added to some military jet fuels, and to nonpolar organic solvents, to impart electrical conductivity, thus avoid buildup of static charge that could lead to sparks igniting fuel vapors. The static dissipator additive Stadis 450 is the agent added to some distillate fuels, commercial jet fuels, and to the military JP-8.
Static Dissipative Anti-Static Insulative: Description Carbon powders and fiber: No initial charge. Provides path for charge to bleed off. Typically black color. No or low initial charge. Prevents discharge to or from human contact Initial charges are suppressed. Typically pink color. Insulators and Base Polymers. Not an ESD material
Static electricity is an imbalance of electric charges within or on the surface of a material. The charge remains until it can move away by an electric current or electrical discharge. The word "static" is used to differentiate it from current electricity, where an electric charge flows through an electrical conductor. [1]
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The usual ratio of masterbatch to base polymer is 1–5%. Several masterbatches (colors and various additives) can be used together. [2] Processing machines are usually fed with premixed granules of the host polymer and the masterbatch, where the final mixing takes place in the screw and extrusion parts of the processor.
Pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate): A primary antioxidant consisting of sterically hindered phenols with para-propionate groups. Primary antioxidants (also known as chain-breaking antioxidants) act as radical scavengers and remove peroxy radicals (ROO•), as well as to a lesser extent alkoxy radicals (RO•), hydroxyl radicals (HO•) and alkyl radicals (R•).
For example, antistatic additives can be added to help polypropylene surfaces resist dust and dirt. Many physical finishing techniques can also be used on polypropylene, such as machining . Surface treatments can be applied to polypropylene parts in order to promote adhesion of printing ink and paints.
AMPS is made by the Ritter reaction of acrylonitrile and isobutylene in the presence of sulfuric acid and water. [2] The recent patent literature [3] describes batch and continuous processes that produce AMPS in high purity (to 99.7%) and improved yield (up to 89%, based on isobutene) with the addition of liquid isobutene to an acrylonitrile / sulfuric acid / phosphoric acid mixture at 40°C.