Water-based glow powder is a type of material that can absorb and emit light. Glow powder also has many different names, such as glow in the dark powder, glow in the dark pigment, luminous powder, phosphorescent powder, or strontium aluminate powder. iSuoChem glowing powder is commonly used in various applications such as safety signs, clothing, toys, inks, paints, injections, and novelty items. However, this material may experience flocculation, which can affect its performance and quality.

In this article, we will discuss the causes of water-based glow powder flocculation and how to detect and prevent it.

Causes of Water-based glow Powder Flocculation

1. Physical factors

There are various causes of water-based glow powder flocculation, including physical and chemical factors. One of the physical factors is the long-term storage of the emulsion, which can cause the collision between latex particles due to Brownian motion, resulting in emulsion coagulation. Additionally, the effect of gravity can cause latex particles to settle or rise to form a coacervate, resulting in irreversible aggregates that can break the emulsion.

Another physical factor that can cause flocculation is simultaneous freezing and thawing, which can affect the stability of the emulsion. These physical changes are irreversible and do not lead to an increase in the pH of the system.

2. Chemical factors

On the other hand, a chemical factor that can cause flocculation is the destruction of the waterproof layer of the glow powder by a certain substance in the system. This can cause a chemical reaction of the glow powder, resulting in the acrylic resin changing from small molecules to large molecules. The larger molecules stick together with the powder, causing it to precipitate and wrap the macromolecules together to form a solid and blocky substance. The reaction also produces aluminum hydroxide, which can significantly increase the pH value of the system.

Detection and Prevention of Water-based glow Powder Flocculation

To detect water-based glow powder flocculation, a simple inventory powder detection method can be used. This method involves taking a sample of the orange and yellow-green glow powder in stock, mixing each powder with lotion, and then testing them separately. After mixing 50% of the yellow-green and orange powders with the emulsion, a pH and viscosity test can be performed, and the sample can be sealed and put in 50-60 degree warm water or an oven for 12-13 days. After this period, the pH and viscosity changes can be observed using an electronic pH value tester.

1. If the viscosity rises but the pH does not change, there may be a problem with the emulsion system. In this case, the pH value of the emulsion can be adjusted to 6.5 to 7, and the test can be repeated.

2. If the pH value rises, the viscosity rises, and the glow powder is hydrolyzed, then this batch of goods cannot be used. In this case, each additive can be mixed with the glow powder separately, and the change in pH value can be observed to determine which additive reacts with the glow powder. The additive can then be adjusted accordingly.

To prevent water-based glow powder flocculation, proper storage and handling of the material are necessary. The material should be stored in a cool and dry place, away from direct sunlight, and should not be exposed to extreme temperatures or moisture. Additionally, the emulsion should be properly formulated and stabilized to prevent coagulation and settling of the latex particles.

In conclusion, water-based glow powder flocculation can be caused by physical and chemical factors, and it can affect the quality and performance of the material. Proper detection and prevention methods can help ensure the quality of the product and prevent wasted resources.

As an established supplier of Chinese glow powder since 2007, iSuoChem can provide glow pigment powder for plastics-resin-cement-concrete-color runs-epoxy-shoe-cars. We also can supply Skin safe glow in the dark powder for soap-slime-nails. Fair&lovely glow powder is everyone's love.