moji 22 May, 2025
Production of Compound 3840 Green
Abstract
Polyethylene color compounds—especially those designed for rotational molding—play a vital role in the mass production of industrial, household, and medical plastic products. This study focuses on the manufacturing process of Compound 3840 Green, a polyethylene-based material combined with antibacterial additives and mineral pigments. This compound is produced as a powder with controlled particle size (under 800 microns) and possesses excellent mechanical, thermal, and surface properties. Its characteristics have been evaluated according to ASTM standards, and its potential applications in healthcare and structural fields are also analyzed.
Production of Compound 3840 Green
Introduction
Rotational molding is recognized as a cost-effective and versatile method for producing hollow plastic parts in various sizes. However, the success of this process largely depends on the quality and consistency of the polymer compound used. In this context, Compound 3840 Green is an engineered material based onLinear high density polyethylene (HDPE), green mineral pigments, and antibacterial agents.
Production of Compound 3840 Green
Raw materials for Compound 3840 Green
The formulation of Compound 3840 Green is based on the careful selection of the following materials:
Base Polymer: Linear polyethylene with a density of 0.938 g/cm³ and a melt flow index (MFI) of 4 g/10 min
Green Pigment: Heat- and UV-resistant mineral pigments (e.g., chromium oxide-based)
Titanium Dioxide: For increased whiteness and UV stability
Antibacterial Additive: Silver-ion-based or certified organic compounds
Stabilizers and Processing Aids: To enhance thermal stability and processability
Each of these components plays a crucial role in defining the final properties of the compound.
Production of Compound 3840 Green
Technical Properties and Quality Tests
| Property | Value | Unit | Test Method |
|---|---|---|---|
| Melt Flow Index | 4 | g/10 min | ASTM D-1238 |
| Density | 0.938 | g/cm³ | ASTM D-1505 |
| Pigment & Additive Content | < 3 | % | – |
| Yellowness Index | -1 | – | ASTM E-313 |
| Whiteness Index | 60 | – | ASTM E-313 |
| Contamination (Foreign Particles) | 5 | count | BP-137 |
| Vicat Softening Point | 115 | °C | ASTM D-1525 |
| Tensile Strength at Yield | 15 | MPa | ASTM D-638 |
| Elongation at Break | 900 | % | ASTM D-638 |
| ESCR (Environmental Stress Crack Resistance) | 350 | hours | ASTM D-1693 |
| Charpy Impact Resistance | 18 | kJ/m² | ASTM D-6110 |
These data indicate that the compound is highly suitable for applications requiring strength, hygiene, and aesthetic appeal.
Production of Compound 3840 Green
Industrial and Hygienic Applications
Medical and Hygienic Products
Due to its antibacterial properties, this compound is ideal for manufacturing hospital equipment, reusable containers, and products in contact with food, ensuring consumer safety and product longevity.
Storage Tanks
With its high stress crack resistance and UV stability, the compound is suitable for outdoor water and chemical storage tanks.
Toys and Playground Equipment
Its impact resistance, smooth surface, and long-lasting color make it an excellent choice for outdoor benches, slides, and other playground items.
Discussion
The use of heat- and UV-resistant pigments ensures color stability in harsh environmental conditions. High elongation and tensile strength indicate its suitability for mechanically demanding environments. Moreover, the optimized powder form offers good flowability and surface quality during the rotational molding process.
Conclusion
Compound 3840 Green is a modern polyethylene-based material designed specifically for rotational molding applications where hygiene, aesthetics, and mechanical performance are essential. Its controlled particle size, powder form, and antibacterial additives make it a competitive and high-quality alternative to imported products. Complying with ASTM standards, it provides a sustainable and efficient solution for domestic manufacturers.
