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Ashless Dispersant Mechanism Of Action
Oct 11, 2017

ashless dispersant Mechanism of action

The non-ash dispersing agent is a kind of rheological agent, which can not only thicken the coating, but also prevent the phenomenon of flow in the construction, and can give excellent mechanical properties and storage stability. For low viscosity water - based coatings, is a very important class of auxiliaries. A non-ash dispersant is a kind of auxiliary agent which can increase the consistency of the current liquid. Food use become the ash dispersing agent, such as the ash dispersing agent of yogurt, jelly of the ash dispersing agent, ice cream in the ash dispersing agent, instant soy milk, rice paste, sesame paste, and so on in the ash dispersing agent. Industrial also often use the industrial ash dispersant - such as paint without ash dispersant, printing without ash dispersing agent, glue no ash dispersant and so on.

The actual use of non-ash dispersing agents can be divided into two categories: water-based and oil-free dispersants and oil-free dispersants. The former varieties are many, the latter are very few.

The effect of the use of non-ash dispersants in lubricants is as follows:

1. The thickening effect is obvious, with white oil heating to form a transparent soft gel, thick and thick moisturizing sensation;

2. It can be used for suspension pearl powder and bright spring onion powder;

3. Improve the application sense;

4. Increase product brightness;

The main function of non-ash dispersant is to change the rheological holding of dispersion. Anti-settling; Splash proof; No ash dispersing agent is used to improve the film leveling agent. Change the rheological properties of dispersion. This is important for fluid, which can be made into a fluid or pseudoplastic fluid, with different fluid properties directly affecting the flow and fluidity of paint or ink.

Anti-sink: the velocity of the paint is inversely proportional to the viscosity in the force of gravity, and the viscosity is slow, so the thickening is a main method for the anti-sinking. Splash proof: enhance the fullness of the film. Especially at high rate, construction, coating or ink become thin, solid content low fullness. Dispersant is a kind of surfactant that has two opposite properties, both hydrophilic and hydrophilic. It is also necessary to disperse the solid particles that are difficult to dissolve in liquid, organic pigments, and also to prevent the settling and condensation of solid particles. Dispersant of specific function embodied in the following aspects: reducing dispersion time, improve the luster, improve the tinting strength and hiding power, improve the color and color To prevent the floating color hair flower, prevent flocculation, prevent subsidence.

Most dispersants are used to achieve the purpose of dispersing the packing by wetting, grinding and dispersing, coupling and wrapping. Commonly used coating wetting dispersant has the following five categories: anionic aqueous dispersants, cationic aqueous dispersants, electrically neutral aqueous dispersants, multifunctional water dispersing agent, nonionic aqueous dispersants. The anion price is low, and the non-ions are easy to remove in the coating film.