Surfactants are almost used in the whole process of organic ink pigment preparation

2020-07-20 16:53:28

The mechanism of biosurfactant promoting the degradation of organic pollutants and the interaction between biosurfactants and degrading bacteria and substrates are still unclear. Although biosurfactants promote microbial degradation, they also have some inhibitory factors. For example, some surfactants are toxic to microorganisms when the concentration is above CMC, and some biosurfactants colloidal particles can interfere with cell processes. As a result, the degradation rate of organic pollutants can also be reduced by competing with the organic pollutants. In addition, surfactants may cause the dispersion of microbial population and lead to different results. These mechanisms need to be further explored. A kind of

Biosurfactant is a kind of multifunctional and excellent treatment agent, which has the characteristics of biodegradation and low toxicity. It has a wide application prospect in environmental remediation. But up to now, due to the high production cost, it is still unable to compete with the synthetic chemical products on the market, which also affects its wide application. It is necessary to improve the production process of microbial surfactant, increase the yield and reduce the production cost. A kind of

Zwitterionic type: according to different media, amphoteric surfactants can be ionized in aqueous solution and produce compounds with the characteristics of cationic or anionic surfactants. For example, imidazoline, amino carboxylic acid, amino sulfonic acid and substituted derivatives of aminophosphoric acid. Zwitterionic surfactants can be either anionic or cationic, depending on the pH value of the solution.

The production of pigment dispersion phase is the theme of ink. It is very important to keep the pigment fine and uniform dispersion without flocculation. Dispersing pigment can be realized by adding dispersant, surfactant is usually used as dispersant. Whether it is to produce water-based or solvent-based ink, surfactants are added as an important dispersant and grinding additive in the pigment dispersion stage, which takes advantage of the wetting and stable dispersion of surfactants. Surfactants are almost used in the whole process of organic ink pigment preparation. Almost all kinds of organic ink pigments are treated by surfactants to achieve the purpose of modification.