Material Characteristics and Advantages of Plastic Fillers
A brief overview of the material characteristics and advantages of plastic fillers.
Material Characteristics and Advantages of Plastic Fillers
Plastic fillers are known for their corrosion resistance, light weight, and low cost, making them one of the three mainstream filler materials. Commonly used materials include PP, PE, PVC, and PVDF.
Material Property Comparison
Material | Upper Temperature Resistance | Corrosion Resistance | Relative Cost |
PP | 80-100℃ | Resistant to acids and alkalis, resistant to organic solvents | Lowest |
PE | 60-80℃ | Resistant to acids and alkalis, resistant to low temperatures | Low |
PVC | 60-70℃ | Resistant to acids and alkalis, not resistant to oxidizing acids | Low |
PVDF | 120-150℃ | Resistant to strong acids, resistant to oxidants | High |
PP is the most versatile and cost-effective plastic packing material.
Core Advantages
Wide Corrosion Resistance: Resistant to acids, alkalis, and organic solvents, its application range exceeds that of metals and ceramics.
Lightweight: Density 0.9-1.2 g/cm³, approximately 1/7 that of stainless steel, resulting in low support costs.
Low Cost: Significantly lower than metals and ceramics, requiring less initial investment.
Impact Resistance: Good toughness, not easily broken, resulting in low packing loss.
Main Limitations
Low Temperature Resistance: PP ≤ 100℃, PVDF ≤ 150℃
Poor Wettability: Hydrophobic surface makes liquid film spreading difficult.
Low Stiffness: Prone to deformation in large-diameter towers.
Comparison with Metals and Ceramics
Comparison Items | Plastics | Metals | Ceramics |
Density | Lowest | Highest | Medium |
Temperature Resistance | Low (<150℃) | Medium-High (<600℃) | High (>800℃) |
Corrosion Resistance | Wide range of materials | Depends on Material | Acid-resistant, not alkali-resistant |
Cost | Lowest | Medium-High | Medium |
Selection Recommendations
Operating Conditions | Recommended |
Generally suitable for acids, alkalis, and organic media | PP |
Low temperature (<60℃) | PE |
Medium temperature corrosion (80-120℃) | PVDF |
Strong oxidizing acids | PVDF |
Summary
The advantages of plastic fillers can be summarized as: broad corrosion resistance, light weight, and low cost; however, temperature resistance is a weakness. For operating temperatures below 100℃, plastics offer the best cost-performance ratio. PP is the most common, while PVDF is used in high-temperature corrosive conditions. We are a Chinese supplier of plastic fillers. For more information, please contact us via email at annayu@169chem.net or WhatsApp at +8618909016373.