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In industrial chemistry, a stabilizer or stabiliser is a chemical that is used to prevent degradation. [1] Above all, heat and light stabilizers are added to plastic and rubber materials because they ensure safe processing and protect products against aging and weathering.
It is added as a stabilizer and polymerisation inhibitor to butadiene, styrene, [5] vinyl acetate, divinylbenzene [6] and other reactive monomer streams. [7] TBC is also used as a stabilizer in the manufacture of polyurethane foam. [8] It also can be used as an antioxidant for synthetic rubber, polymers and oil derivatives. [7]
Light stabilizer are used to inhibit polymer photo-oxidation, which is the combined result of the action of light and oxygen. Like autoxidation this is a free radical process, hence the antioxidants described above are effective inhibiting agents, however additional classes of additives are also beneficial, such as UV absorbers, quenchers of ...
Polyelectrolytes are made up of positively or negatively charged repeat units.The charge on a polyelectrolyte depends on the different properties of the solution, such as the degree of dissociation of the monomer units, the solvent properties, salt concentration, pH, and temperature.
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas.The reactant entities are given on the left-hand side and the product entities are on the right-hand side with a plus sign between the entities in both the reactants and the products, and an arrow that points towards the products to show the direction of the reaction. [1]
Sodium stannate, formally sodium hexahydroxostannate(IV), is the inorganic compound with the formula Na 2 [Sn(OH) 6].This colourless salt forms upon dissolving metallic tin or tin(IV) oxide in sodium hydroxide and is used as a stabiliser for hydrogen peroxide. [2]
The chemical compounds in smokeless powder can decompose over time. This is especially true when exposed to heat, moisture, and age. The decomposition can create acidic byproducts. These byproducts can speed up the breakdown of the powder. This can compromise the powder's stability. Ethyl centralite acts as a stabilizer.
Chemical formula (C 6 H 9 NO) n Molar mass: 2,500–2,500,000 g·mol −1 ... As a food additive, PVP is a stabilizer and has E number E1201. PVPP (crospovidone) is ...