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The Role of Polyethylene Wax in PVC Production
2025-06-19

Polyethylene wax is a commonly used additive in PVC product manufacturing, primarily serving as a lubricant and processing aid. Below is a brief overview of its main functions:

1. Primary Functions

  1. Lubrication Effect

    • Makes PVC material flow more smoothly during processing

    • Reduces friction in machinery

    • Prevents material from sticking to equipment

  2. Improves Processing Performance

    • Makes PVC easier to mold

    • Increases production efficiency

    • Reduces energy consumption

  3. Enhances Product Quality

    • Produces smoother surfaces on finished products

    • Reduces defects

    • Improves product consistency

2. Applications in Different PVC Products

  1. Rigid PVC (e.g., pipes, window profiles)

    • Slightly higher dosage (approx. 0.5-1%)

    • Mainly prevents material from sticking to machinery

  2. Flexible PVC (e.g., wire insulation, films)

    • Lower dosage (approx. 0.1-0.3%)

    • Helps make the material softer and easier to process

  3. Transparent PVC

    • Requires high-purity polyethylene wax

    • Dosage must be precisely controlled

    • Avoids affecting transparency

3. Usage Considerations

  1. Dosage should be appropriate—excessive amounts can impair product performance

  2. Select the appropriate melting point grade

  3. Best used in combination with other additives

  4. Dosage adjustments may be needed for different products

Summary

Although polyethylene wax is used in small quantities, it plays a crucial role in PVC production. It helps factories operate more smoothly while improving product quality. When using it, it's important to select the right type and carefully control the amount added.

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