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:

How to choose dispersants for carbon black?Carbon black dispersant, commonly referred to as carbon black dispersant, is a special additive used to solve the problem of easy agglomeration and difficult dispersion ofcarbon black in coatings, inks and other systems. Its core function is to

The following provides a complete explanation of the principles, classification, material matching, scene pain points, and screening methods for adapting pigments, carbon black, metal oxides, and inorganic fillers.

Water based digital inkjet dispersants require the selection of polymer block/comb dispersants (anionic/nonionic), mainly depending on the type, particle size, and system viscosity of the dispersed pigment, its nozzle compatibility, storage stability, and environmental requirements.

How to Choose a Water-Based Silicone Defoamer That Won't Cause Pinholes?I. The Principle of Pinholes Caused by Water-Based Silicone Defoamers

When selecting a defoamer for high-viscosity ink systems, it is necessary to consider the system characteristics(high viscosity, high solid content, multi-component), the performance of the defoamer, and its impact on the finalquality of the ink. The following are key selection points an

Selecting a water-based paint dispersant requires comprehensive consideration of the dispersion system characteristics(pigment type, resin, pH value, etc.), performance requirements (dispersion efficiency, stability, compatibility), and applicationscenarios (latex paint, industrial paint

How to Choose Defoamers for Water-Based Coatings and Inks?During the production and application of water-based coatings and inks, air is often introduced due tooperations such as mixing, dispersion, and coating, or surfactants (such as dispersants and emulsifiers) in thesystem stabilize