The role of hydrogen peroxide stabilizers is to control the decomposition rate of hydrogen peroxide during oxygen bleaching or degumming, scouring, and bleaching processes, preventing premature catalytic decomposition of hydrogen peroxide, which can lead to the failure of the bleaching agent and damage to the fibers. At this point, an additive that slows down the decomposition of hydrogen peroxide is needed, and this additive is referred to as a hydrogen peroxide stabilizer.
The mechanism of hydrogen peroxide stabilizers mainly includes two theories: adsorption theory and complexation theory. The micelle adsorption theory primarily achieves stability by高分子micelles adsorbing heavy metal ions through electrostatic forces or hydrogen bonds. In contrast, the complexation theory forms stable water-soluble complexes by the chelating action of polyvalent chelating agents with metal ions, thereby preventing the catalytic action of heavy metals.
The stabilizer components of hydrogen peroxide vary according to each stabilizer formula. The following examples of two formulas' components are provided for reference:
Magnesium Salts (0.05%~1%), Aminopropyl Phosphonic Acid (0.01%~0.1%), Picolinic Phosphonic Acid (0.01%~0.1%)
Three: Stabilizers for bleaching textiles: alkaline non-silicate inorganic salts such as borates, stannates, and 1,10-diphosphaphenanthrene.
