PPTD20 Current Market Price Overview
PPTD20, as a mainstream grade in the modified polypropylene family, is priced based on raw material costs (PP base, talc powder, additives) and market supply-demand dynamics. During 2025-2026, PPTD20 domestic market quotes in China generally fluctuated within the 6,500-8,500 CNY/ton range.
Prices vary significantly by brand, purchase volume, and supply channel: First-tier modified plastic manufacturers (Kingfa, CGNM, etc.) typically quote 7,500-8,500 CNY/ton; small-to-medium manufacturers or regional suppliers quote 6,500-7,500 CNY/ton; grades with special VOC or odor requirements (such as OEM-certified materials) may rise to 9,000-12,000 CNY/ton. Note that the above refers to general-purpose PPTD20; flame-retardant or heat-resistant grades are significantly higher, typically 12,000-15,000 CNY/ton.
Key Factors Affecting PPTD20 Pricing
PP base resin price fluctuations are the biggest cost driver for PPTD20. Polypropylene is a petroleum derivative, and its price correlates strongly with crude oil prices. When crude oil prices fluctuate sharply, PPTD20 prices adjust accordingly. Additionally, talc powder pricing (typically 800-2,000 CNY/ton depending on mesh size and purity), compounding processing fees, packaging, and transportation costs all influence the final quote.
Volume discounts: small orders (25kg/bag, under 1 ton) carry the highest unit price, potentially 10%-15% above wholesale; single orders of 5-10 tons can enjoy 3%-5% discount; annual framework agreements (100+ tons) typically lock in 5%-10% savings.
PPTD20 Material Data Sheet (TDS) Key Parameters
The data sheet is critical for evaluating whether PPTD20 meets design requirements. Below are the most important parameters and their interpretations:
Physical Properties
Density: 1.04-1.08 g/cm³, typical value 1.06 g/cm³. Melt Index (MI/230°C/2.16kg): 10-30 g/10min, varies by grade; injection grades typically 15-25 g/10min. Molding shrinkage: 1.0%-1.2% (flow direction), 1.2%-1.5% (perpendicular). Water absorption: 0.01%-0.03%, extremely low; 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: 1,800-2,500 MPa, typical 2,200 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. 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 typically not used for high-demand electrical insulation, but suffices as general insulation grade.
Data Sheet Interpretation Key Points
All values in the data sheet are typical values under standard test conditions. Actual injection-molded part performance is significantly influenced by processing conditions and mold design. The same PPTD20 data sheet can yield products with mechanical properties differing by 10%-20% across different injection molding machines. Therefore, data sheet values should be used primarily for initial material screening and cross-comparison, not as final design basis. Actual injection trials and part performance testing are recommended after material selection.
