PP vs PVC Tube Settlers: JUNTAI's Corrosion Resistance & Lifespan Lab Test Report

Why Material Matters in Harsh Environments

Industrial wastewater often contains acids (pH <3), alkalis (pH >10), oils, and chlorides. Traditional Pvc Tube Settlers face rapid degradation under such conditions, leading to:

• Frequent replacements (every 5-8 years)

• Structural deformation from chemical swelling

• Biofilm contamination due to surface cracks

JUNTAI conducted a 24-month accelerated aging test to compare PP and PVC performance.

Experimental Design

1. Test Conditions

• Chemical Exposure: 10% HCl, 20% NaOH, 5% NaCl solutions (simulating mining/chemical wastewater)

• Temperature: 60°C (accelerated aging factor: 4x real-world conditions)

• Duration: 0-24 months

2. Key Metrics

• Weight change (swelling ratio)

• Surface hardness (Shore D scale)

• Crack formation (SEM imaging)

Results: PP vs PVC Performance Breakdown

Key Findings:

1. Chemical Stability: PP maintained structural integrity in HCl/NaOH, while PVC showed 12.3% weight gain from polymer chain breakdown.

2. Thermal Resistance: PP retained 97% hardness at 60°C vs PVC's 78% (critical for tropical regions).

3. UV Resistance: PP with carbon additives showed <5% yellowness index change vs PVC's 35% after 2000h xenon lamp exposure.

Why JUNTAI Pp Tube Settlers?

1. Nano-Coated Surface

   • Reduces biofilm adhesion by 60% (SEM data)

   • Self-cleaning with 0.03mm roughness (vs PVC's 0.15mm)

2. Customizable Design

   • 55° tilt angle optimized via CFD (92% TSS removal)

   • Modular PP panels for rapid field assembly

3. Global Certifications

   • NSF/ANSI 61, ISO 14001 compliant

   • 15-year warranty with IoT corrosion monitoring

Case Study: Chilean Copper Mine Wastewater Plant

• Replaced PVC settlers failing in 2 years with JUNTAI PP units

• Achieved 8-year continuous operation with 0 maintenance