Precipitated silica is indeed a "moisture-proof expert" in electronic packaging materials. Its moisture absorption and stability performance directly relate to the lifespan and reliability of electronic components. Let me summarize the key points for you:

Moisture Absorption Performance: Efficient Adsorption, Reduced Humidity
The porous structure of precipitated silica allows it to quickly adsorb and lock in water molecules, effectively reducing environmental humidity. In electronic packaging, this prevents moisture intrusion, avoiding short circuits or oxidation of circuits. Hydrophobic precipitated silica (with a hydrophobic surface treatment) performs even better, significantly improving the water resistance of packaging materials.

Stability Performance: High Temperature Resistance, Anti-Aging
Precipitated silica is high-temperature resistant and non-flammable, and it can also enhance the mechanical and chemical stability of materials. In electronic packaging, it can improve tensile strength, hardness, and wear resistance, extending the service life of devices. In addition, it can adsorb harmful gases and impurities, improving environmental purification capabilities.

Application Advantages: Improved Efficiency, Reduced Costs
After adding precipitated silica, the curing time of packaging materials can be shortened to 2-2.5 hours, and the curing temperature can be reduced to room temperature, significantly improving production efficiency and reducing costs. It can also optimize the mechanical and electrical properties of silicone rubber, improving tensile strength, hydrophobicity, and arc resistance.

Summary
Through its efficient moisture absorption and stability performance, precipitated silica provides reliable moisture protection for electronic packaging materials, while also improving production efficiency and material performance. It is an indispensable functional material in electronic packaging.