In the field of new materials, there exists a key additive known as the “MSG of industry” — PTFE wax bột. This white, powdery resin is produced by coagulating, washing, and drying a dispersion obtained through the controlled polymerization of tetrafluoroethylene. It possesses exceptional properties such as heat resistance, weatherability, cold resistance, low friction, non-stick characteristics, hóa chất stability, and electrical insulation. In addition, due to its small average kích thước hạt, PTFE wax powder has excellent dispersibility and can easily blend uniformly with other materials.
Production Processes of Wax Powder
Phương pháp vật lý
Wax powder can be obtained through mechanical or máy nghiền phản lực, evaporation and precipitation, or melting processes. For example, paraffin and sáp polyethylene can be ground and classified to achieve micron-level particle sizes. This method is simple but often results in products with wide kích thước hạt distribution, irregular shapes, and poor dispersibility.
Chemical Reagent Method
This process uses chemical agents to gradually generate wax microparticles from a dissolved molecular state. It can produce nano-scale micronized wax, but the process is complex and costly.
Polymerization or Degradation Method
Micronized wax can also be prepared via polymerization or degradation, such as PMMA micronized wax, controlled molecular weight PP, PE, PTFE micronized wax, Và acrylate wax.
For instance, polyethylene wax can be synthesized through high-pressure or low-pressure polymerization.
- High-pressure polymerization produces branched PE wax with lower density and melting point.
- Low-pressure polymerization yields linear PE wax with lower specific gravity.
Even among PE waxes produced by low-pressure methods, physical properties vary with density. Lower-density (higher crystallinity, fewer branches) PE wax tends to be harder and more wear-resistant, while its slip and friction-reducing properties are slightly weaker.
Application Scenarios
Wax powder is widely used across various industries:
1. Coatings Industry
- Matting Agent: Scatters light to reduce gloss and achieve a matte finish.
- Anti-Wear Agent: Improves abrasion resistance and extends lớp phủ life.
- Anti-Blocking Agent: Lowers surface energy to prevent adhesion between layers.
2. Plastics Industry
- Lubricant: Enhances processing flow and production efficiency.
- Mold Release Agent: Prevents sticking between products and molds.
- Antistatic Agent: Reduces surface resistance to prevent static buildup.
3. Textile Industry
- Softening Agent: Provides soft and smooth touch to fabrics.
- Water Repellent: Improves water resistance.
- Flame Retardant: Enhances flame resistance of fabrics.
4. Other Fields
- Mỹ phẩm: Enhances stability and lubricity of formulations.
- Food: Used as a glazing and anti-sticking agent in candies and chocolates.
- Dược phẩm: Serves as a carrier in controlled-release or targeted drug delivery systems.
Bột Epic
Epic Powder specializes in advanced grinding and classification technologies for micronized wax production. With over 20 years of experience in ultrafine powder processing, we provide customized solutions for PTFE, PE, and other micronized waxes — ensuring consistent particle size, superior dispersibility, and high-performance results tailored to each customer’s needs.