Performance of various surfactants
Overview: Comparison of alkali resistance, cleaning, oil removal, and wax removal performance between the two most commonly used types of surfactants in the current market, including non ionic and anionic surfactants
Various surfactants resistant to alkalinity
The alkali resistance of surfactants includes two aspects. On the one hand, the stability of the chemical structure is mainly manifested by the destruction of hydrophilic genes by strong alkalis; On the other hand, the stability of the aggregation state in aqueous solution is mainly manifested by the salt effect disrupting the solvation of surfactants, causing them to float or sink and separate from water.
Test method: Take 10g/L of surface active agent, add flake alkali, and leave at the specified temperature for 120 minutes. Observe, and the amount of alkali used when layering or oil bleaching occurs is the maximum alkali resistance.
（1） The market for special and customized surfactants is gradually expanding: With the development of fine chemicals, customers will put forward higher requirements and more diverse and specific demands for the performance of surfactants, which will promote the development direction of the surfactant industry towards more specialization and customization. This is mainly reflected in the following two aspects: special functional surfactants will be vigorously developed. For example, silicon-containing surfactants not only have the characteristics of high temperature resistance, weather aging resistance, non-toxic, corrosion-free, and high physiological inertness, but also have high surface activity, emulsification, dispersion, wetting, anti-static, defoaming, and foam stability, making them important special surfactants. Surfactants such as polysiloxanes can be used as both defoamers and stabilizers in different temperature ranges, and have important application value.
With the increasing diversification of downstream customer demands, the surfactant industry will gradually show a trend of customized development. At present, some large-scale and technologically advanced surface active agent manufacturers in China have begun to develop and customize special surface active agent products with different functions according to customer needs, which puts higher requirements on the technology and process of the entire industry. Manufacturers must be able to adjust the production process in a timely manner according to customer orders, including raw material scheduling, personnel configuration, production process, and other aspects, To meet the increasing needs of customers.
（2） The development and application of new surfactants: With the widespread application of surfactants known as “industrial monosodium glutamate” in various fields of national economic development and the increasing attention of the country to environmental protection, the research and development of mild, safe, efficient functional and environmentally friendly new surfactants have become a hot topic in recent years. The development direction of surfactants in the future market mainly includes the following points:
Green mild surfactant. With the improvement of living standards and the progress of human civilization, people are paying more and more attention to environmental protection and their own health. People tend to use natural green products that do not pollute the environment but are gentle and safe. This puts higher requirements on the biodegradability, irritation, and ecological toxicity of surfactants, such as oils, starch Green surfactants and their derivative products based on natural renewable resources such as rosin and amino acids represent the development direction of the new generation of green surfactants.
Polymer surfactants. Polymer surfactants are polymer compounds with surface active functions, which are
