Licowax PE 520 complies with the food regulations of many countries and can be used in food contact applications such as BgVV and FDA.
Titration point °C : 117-122
Acid value mg KOH/g : 0
Saponification value mg KOH/g ：0
Density (20℃)g/cm3 :0.92-0.94
Viscosity（140℃）M Pa .s :-650
Molecular structure: Branched chain type
Physical form: Granules or fine grains or powder
Some latex paint formulations add a film-forming aid to make it demulsified and unstable. It can be pre-mixed with surfactants and propylene glycol and then added.
Compatibility Commercially available inorganic fillers are generally not used as emulsion colloids
After surface treatment, many organic pigment pastes
Taking into account the requirements of water dispersibility, 4 water is also added)-resistant to standing, hydrophilic
A lot of hydrophilic surfactants. Modified associative colloid
The combined effect will also have a certain impact, and at the same time
It also affects the color development. This leads to the necessity of colloidal modification of the slurry in Figure 28-8, and the problem of hydrophobic modification, as shown in Figure 28-8.
①Improve the suspension of pigments and fillers;
②Improve the storage stability and reduce the water separation tendency of the coating;
③Significantly reduce the amount of hydrated thickener (water retention agent);
④Increase the gloss of the coating film;
⑤Improve the water resistance and wet rub resistance of the coating film;
⑥ Combined use with hydrophobically modified associative enhancer improves the leveling of the coating film;
⑦ It has good color development.
Corning, Ciba, San Nopco, and Rohm and Haas all have some hydrophobically modified dispersants. In view of the great differences in the variety and performance of inorganic substances, byk wax emulsions, and associative thickeners used in coating formulations, we tried to find out the effects of dispersants adsorbed by pigments and fillers on suspension and rheological properties and their For the inherent law, the following takes the newly developed hydrophobically modified dispersant (colloid modifier) of Cognis as an example to analyze the contribution of hydrophobically modified dispersant to the rheological properties of medium and low PVC latex paints.
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