PPTD20 Current Market Price Overview
PPTD20, as a flagship grade in the modified polypropylene family, has its price affected by raw material costs (PP base resin, talc powder, additives) and supply-demand dynamics. During 2025-2026, the domestic Chinese market price for PPTD20 has generally fluctuated within the 6500-8500 RMB/ton range.
Specific prices vary significantly by brand, purchase volume, and supply channel: First-tier compounders (Kingfa, CGN Juner, etc.) typically quote 7500-8500 RMB/ton; mid-to-small compounders or regional suppliers quote 6500-7500 RMB/ton; for special requirements such as low VOC or low odor (e.g., OEM original certifications), prices may rise to 9000-12000 RMB/ton. Note that the above are for general-grade PPTD20; flame-retardant or heat-resistant grades are significantly higher, typically reaching 12000-15000 RMB/ton.
Key Factors Affecting PPTD20 Price
PP base resin price fluctuation is the largest factor affecting PPTD20 cost. Polypropylene (PP) is a petroleum derivative with strong price correlation to crude oil. When crude oil prices fluctuate sharply, PPTD20 prices adjust accordingly. Additionally, talc powder price fluctuations (typically 800-2000 RMB/ton depending on mesh size and purity), compounding processing fees, packaging, and transportation costs all affect the final quote.
Volume discounts: Under standard procurement, small-lot purchases (25kg/bag, under 1 ton) have the highest unit price, potentially 10%-15% above wholesale; single batches of 5-10 tons can receive 3%-5% discount; annual framework agreements (over 100 tons) can typically lock in prices with 5%-10% savings.
PPTD20 Material Data Sheet (TDS) Key Parameters
The data sheet is essential for evaluating whether PPTD20 meets design requirements. Below are the most important parameters in a typical PPTD20 TDS:
Physical Properties
Density: 1.04-1.08 g/cm³, typical 1.06 g/cm³. Melt Flow Index (MI/230°C/2.16kg): 10-30 g/10min, varying significantly by grade; injection molding grades typically 15-25 g/10min. Mold shrinkage: 1.0%-1.2% (flow direction), 1.2%-1.5% (perpendicular direction). Water absorption: 0.01%-0.03%, very low, pre-drying usually not required.
Mechanical Properties
Tensile yield strength: 20-30 MPa, typical 25 MPa. Elongation at break: 10%-50%, decreasing with higher talc content. Flexural strength: 30-40 MPa. Flexural modulus: 1800-2500 MPa, typical 2200 MPa. Charpy notched impact strength (23°C): 3-6 kJ/m². Rockwell hardness (R scale): 80-95.
Thermal Properties
Heat Deflection Temperature (HDT, 0.45 MPa): 120-135°C. Heat Deflection Temperature (HDT, 1.82 MPa): 55-70°C. Vicat Softening Temperature (VST, B50): 145-155°C. Service temperature range: -20°C to 110°C (continuous).
Electrical Properties (Optional)
Volume resistivity: >10¹⁵ Ω·cm. Dielectric strength: 20-25 kV/mm. PPTD20 is not typically used for high-demand electrical insulation but is adequate as a basic insulating material.
How to Read the PPTD20 Data Sheet
All data sheet values are typical results under standard test conditions. Actual injection molded part performance is significantly affected by process conditions, mold design, and other external factors. The same PPTD20 grade can produce parts with 10%-20% mechanical property variation across different injection molding machines. Therefore, data sheet values should be used for preliminary material selection and cross-comparison, not as final design criteria. Always conduct actual injection trials and part performance testing after material selection.
