Feature
Zinc Stearate Powder is commonly used as a heat stabilizer in plastic manufacturing processes. It is a white, fine powder
that is insoluble in water and organic solvents.
Heat stabilizers are additives that help prevent the degradation of plastics when exposed to high temperatures during
processing or end-use applications. They work by inhibiting the breakdown of the polymer chains, which can lead to
discoloration, brittleness, and loss of mechanical properties.
Zinc stearate powder acts as a heat stabilizer by forming a protective layer on the surface of the plastic, which helps to
dissipate heat and prevent thermal degradation. It also acts as a lubricant, reducing friction and improving the flow properties
of the plastic during processing.
In addition to its heat stabilizing properties, zinc stearate powder also has other benefits in plastic applications. It can act as
an Anti-blocking Agent, preventing the sticking of plastic films or sheets. It also has a synergistic effect with other additives,
such as antioxidants, UV stabilizers, and flame retardants, enhancing their performance.
Zinc stearate powder is commonly used in various plastic applications, including PVC (polyvinyl chloride) products, polyolefins, polystyrene, and other thermoplastics. It is typically added during the compounding or extrusion process, where it can be easily
dispersed and mixed with the polymer matrix.
Overall, zinc stearate powder is an effective and widely used heat stabilizer in plastic manufacturing, providing thermal protection
and improving the performance and durability of plastic products.
Specification for zinc stearate:
| Item | Index (First-Grade) |
| zinc Content % | 10.8±0.5 |
| Free Acid (stearic acid ) % | ≤ 0.5 |
| Loss on Drying ( moisture ) % | ≤ 1.0 |
| Melting Point °C | 120±5 |
| Fineness(through 0.075mm-mesh) % | all through |
Anticorrosion Pigments, Inkjet Receptive Coating, Matting Agent
