Stirring & Defoaming Solution for High‑Viscosity Colloids and Phosphor Materials

High‑viscosity colloids and phosphor materials are widely used in LED packaging, optical coatings, phosphor display and other fields, with extremely high requirements for phosphor dispersion and bubble control. Phosphors tend to agglomerate in high‑viscosity colloids, and entrapped bubbles will impair phosphor conversion efficiency and luminous uniformity. Sienox adopts self‑developed planetary vacuum stirring‑defoaming technology to realize nano‑scale uniform dispersion of phosphors and thoroughly eliminate micro‑bubbles inside colloids, delivering a closed‑loop solution covering materials to manufacturing for the industry.

Working Condition Requirements

• Material Type: High‑viscosity colloids and phosphor materials (LED phosphor glue, optical phosphor coating, phosphor encapsulant, phosphor conversion material, YAG phosphor glue, rare‑earth phosphor glue, quantum‑dot phosphor glue, etc.)

• Initial Status: After mixing phosphors with high‑viscosity colloids, phosphor agglomeration and uneven dispersion occur, accompanied by abundant entrapped bubbles. Poor fluidity of high‑viscosity systems locks bubbles inside colloids which cannot escape naturally. Phosphor agglomeration leads to reduced luminous efficiency and inconsistent color temperature.

• Processing Target: Disperse phosphors uniformly into high‑viscosity colloids at nano‑scale and completely remove micro‑bubbles. Ensure even phosphor distribution, high luminous efficiency and consistent color temperature to satisfy high‑quality process demands for LED packaging and optical coatings.

Comparison Before and After Improvement

Before Improvement — Pain Points of Traditional Processes:

• Severe Phosphor Agglomeration: Conventional stirring produces uneven phosphor dispersion and agglomeration in high‑viscosity colloids, resulting in low luminous efficiency and inconsistent color temperature.

• Bubble Residue Impairs Luminescence: Bubbles inside colloids scatter light, lower phosphor conversion efficiency and degrade LED luminous efficacy and color rendering performance.

• Poor Color‑Temperature Consistency: Uneven phosphor distribution causes variable phosphor conversion efficiency across positions, leading to inconsistent LED output color temperature and compromised product quality.

• Accelerated Luminous‑Efficiency Degradation: Bubbles and agglomerated phosphors trigger local overheating, accelerate phosphor aging and shorten LED service life.

• Poor Batch Consistency: Unstable performance of conventional stirring‑defoaming causes large quality deviations among different batches of phosphor glue.

• Low Production Efficiency: Long static defoaming cycle fails to meet mass‑production requirements.

Solution — Sienox SIE‑MIX1000 Planetary Vacuum Stirring‑Defoaming Machine:

Leveraging the synergy of "vacuum negative pressure + dynamic stirring", it provides professional stirring and defoaming solutions for high‑viscosity colloids and phosphor materials:

1. Nano‑Scale Phosphor Dispersion: The planetary dynamic stirring system achieves nano‑scale uniform phosphor dispersion within high‑viscosity colloids, eliminates agglomeration and improves luminous efficiency.

2. Dual Defoaming via Vacuum Stirring: Dynamic stirring under vacuum rapidly throws out and completely removes micro‑bubbles from colloids, eliminating light‑scattering effects caused by bubbles.

3. Wide Volume Compatibility: Compatible with various container sizes, covering lab‑scale small‑batch testing to mass production.

4. Precise Multi‑Segment Parameter Control: Adjustable multi‑segment parameters for rotation speed, processing time and vacuum degree to adapt to stirring‑defoaming requirements for materials of different viscosities and phosphor contents.

5. Excellent Batch Consistency: Automated operation with repeatable parameters guarantees consistent defoaming performance for every phosphor glue batch.

6. Enhanced Luminous Efficiency: Uniform phosphor dispersion plus thorough bubble removal greatly boosts phosphor conversion efficiency and optimizes color‑temperature consistency.

Sample Provider: LED Packaging Enterprise

Test Conditions

Effect Comparison Before and After Stirring‑Defoaming

Proven Application Fields

• LED phosphor glue (LED packaging, LED chip packaging, LED lamps)

• Optical phosphor coating (phosphor display, fluorescent labeling, phosphor coating)

• Phosphor encapsulant (optical device packaging, phosphor sensor packaging)

• Phosphor conversion materials (phosphor conversion film, phosphor conversion plate, quantum‑dot film)

• YAG phosphor glue (YAG phosphor encapsulation, white‑light LED packaging)

• Rare‑earth phosphor glue (rare‑earth phosphor encapsulation, special‑purpose lighting)

• Quantum‑dot phosphor glue (quantum‑dot LED, quantum‑dot display)

• Special phosphor materials (anti‑counterfeiting fluorescence, safety fluorescence, biological fluorescence)