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Advantages of CLG powder coating machine in plastic fillers

Time:2025-06-26


Powder Surface Coating Machine

With the rapid development of the plastics industry, mineral fillers play an increasingly important role in plastic products. By adding inorganic powders such as calcium carbonate, talcum powder, and wollastonite, not only can the cost be reduced, but also the rigidity, dimensional stability, heat resistance and other properties of the product can be improved.

However, there is a natural interface incompatibility problem between these inorganic fillers and organic resins, which leads to poor dispersion and decreased mechanical properties of the products.

Cronus’s CLG series powder coating machine is a high-efficiency powder modification equipment designed to solve this industry problem. By surface activation treatment of the powder, its compatibility with the polymer matrix is significantly improved, so it is widely used in the field of plastic filling with outstanding results.

CLG powder coating machine

In the plastic industry, mineral fillers are mainly used as functional reinforcing materials. However, their hydrophilic surface is difficult to fully combine with lipophilic plastic resins, resulting in multiple challenges that affect the overall performance and quality of plastic products.

Key Issues:

  • Poor dispersibility and easy agglomeration
  • Weak interfacial bonding with resins
  • Affecting process performance such as extrusion and injection molding
  • Decreasing the impact resistance and tensile strength of products

Solution:

The solution lies in the surface modification of the filling powder, so that its surface has a certain degree of organic affinity. This allows it to form a more stable and effective interface bond with polymer resins, resulting in enhanced dispersion, processing performance, and mechanical strength of the final product.

Technical Advantages of CLG Coating Machine

The CLG powder coating machine adopts a dry continuous coating process, in which surfactants (such as stearic acid and titanate coupling agents) are evenly distributed on the powder surface through high-speed shear and intermolecular forces. This enables several critical performance advantages.

Core Advantages:

  1. Improve compatibility and dispersibility
    Modified powder transforms from hydrophilic to lipophilic, enhancing dispersion uniformity in PE, PP, PVC resins and preventing agglomeration.
  2. Improve mechanical properties
    Surface modification strengthens interfacial bonding between fillers and resin, boosting tensile strength, impact resistance, and ductility.
  3. Improve processing performance
    Coated powder lowers melt system viscosity and improves flowability, enhancing stability and efficiency in extrusion and injection molding.
  4. Reduce filler usage and improve cost performance
    Excellent performance is achievable with lower addition levels of coated powder, reducing overall raw material costs.

Typical application cases

The CLG powder coating machine is widely applied in various plastic processing industries. Through surface modification, mineral fillers become more compatible with polymer matrices, delivering improved product performance across multiple application scenarios.

Key Application Examples:

PP/PE Filler Masterbatch
After using CLG to coat calcium carbonate, the product’s rigidity and dimensional stability are enhanced. Ideal for injection molded boxes, plastic sheets, etc.
PVC Cable Material
Modified talcum powder improves both insulation performance and processing rheology, contributing to safer and more efficient cable production.
EVA Shoe Material
Surface-modified powder enhances bonding with EVA, improving foam cell uniformity and rebound performance—essential for comfort and durability in footwear.
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The CLG powder coating machine has achieved remarkable results in multiple plastic filler projects, effectively helping customers overcome interface incompatibility challenges and significantly enhancing the comprehensive performance of their products.

With its efficient, stable, and environmentally friendly coating process, the CLG machine is rapidly becoming a key piece of equipment in the field of plastic filling and surface modification.

If you are looking to enhance the added value and processing performance of your plastic fillers, the CLG coating machine is undoubtedly your ideal choice.

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