Guidelines for Selecting Wetting Agents for Water-based Coatings

Selection Guide for Color Paste Dispersants

Complete Selection Guide for Nano Organic/Inorganic Pigment Dispersants (Water-Based/Oil-Based Full Coverage + Pitfall Avoidance + Process)

In waterborne coating systems, the dispersion state of pigments and fillers directly dictates key properties such as fineness, gloss, tinting strength, storage stability, and overall film performance. As critical wetting and dispersing additives, dispersants bind to the interfaces of powder particles via anchoring groups; they break down powder agglomerates through mechanisms involving electrostatic repulsion, steric hindrance, or a synergy of both, while simultaneously inhibiting secondary flocculation, sedimentation, and particle coarsening during storage. Selecting the right dispersant is not merely a matter of adopting recommended product grades; rather, it requires a multidimensional assessment that systematically integrates factors such as powder type, resin system, application conditions, system pH, and formulation compatibility.

Applicable systems: Water-based inks (including packaging inks, flexographic inks, and inkjet inks; compatible with organic and inorganic pigments).

Guidelines for Selection of Defoamers for Epoxy Coatings Ink

How to Choose a Water-Based Defoamer for Water-Based Coating Ink?

Water-Based Ink Defoaming Agents

I、 First, distinguish the four types of defoamers (advantages and disadvantages+applicable scenarios)

First, clarify the powder characteristics:The surface of polysilicon powder is covered with a natural silicon dioxide oxide layer (containing silanol groups, with an isoelectric point of approximately 2 to 3), and due to its high powder density, it is highly prone to sedimentation. During the preparation process, it is strictly prohibited to introduce sodium, potassium, or heavy metal ions to prevent impurities from compromising the purity of the silicon material and interfering with subsequent smelting and battery manufacturing processes.It is divided into two major scenarios: water-based slurries and solvent-based slurries (ethanol/isopropanol system), while also distinguishing between two applications:① A wet grinding and purification process based on silicon wafer cutting waste liquid to achieve high-value regeneration of recycled silicon powder suspension② Silicon-based conductive pastes and inks suitable for high-temperature sintering processes with low residual carbon characteristics

Selection principle and scheme of water-based ink (ink wash) dispersant

Metal oxides (TiO ₂, Fe ₂ O3, Fe ∝ O3, Al ₂ O3, SiO ₂ ZnO、 The surface of cobalt blue/chromium green ceramic oxides, ITO, etc. is rich in hydroxyl groups and exhibits polarity and acidity. The core logic requirements for dispersants are: