Current PPTD20 Market Price Overview
PPTD20, as a flagship grade in the modified polypropylene family, has its price influenced by raw material costs (PP base resin, talc powder, additives) and supply-demand dynamics. Between 2025 and 2026, PPTD20 market prices in China's domestic market have generally fluctuated within the range of 6,500-8,500 CNY/ton.
Specific prices vary significantly based on brand, purchase volume, and supply channel: First-tier modified resin manufacturers (Kingfa, CGN etc.) typically quote 7,500-8,500 CNY/ton; small-to-medium manufacturers or regional suppliers quote 6,500-7,500 CNY/ton; special performance grades with VOC and odor requirements (OEM-certified) may reach 9,000-12,000 CNY/ton. Note that the above prices are for general-purpose PPTD20; flame-retardant or heat-resistant grades are considerably higher, typically 12,000-15,000 CNY/ton.
Key Factors Affecting PPTD20 Price
PP base resin price fluctuation is the most significant factor affecting PPTD20 cost. Polypropylene is a petroleum derivative, so its price is strongly correlated with crude oil prices. When crude oil prices fluctuate sharply, PPTD20 prices adjust accordingly. Additionally, talc powder price fluctuations (typically 800-2,000 CNY/ton depending on mesh size and purity), modification processing fees, packaging, and transportation costs all contribute to the final quoted price.
Volume discount tiers: retail purchases (25kg/bag, under 1 ton) command the highest unit price with 10%-15% premium over wholesale; single orders of 5-10 tons can enjoy 3%-5% discount; annual framework agreements (100+ tons) typically lock in prices with 5%-10%优惠.
PPTD20 Material Data Sheet (TDS) Key Parameters
The data sheet is critical for evaluating whether PPTD20 meets design requirements. Here are the most important parameters:
Physical Properties
Density: 1.04-1.08 g/cm³, typical value 1.06 g/cm³. Melt Index (MI/230℃/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%, decreases with higher talc content. Flexural strength: 30-40 MPa. Flexural modulus: 1,800-2,500 MPa, typical 2,200 MPa. Notched Charpy impact strength (23℃): 3-6 kJ/m². Rockwell hardness (R scale): 80-95.
Thermal Properties
Heat deflection temperature (HDT, 0.45 MPa): 120-135℃. Heat deflection temperature (HDT, 1.82 MPa): 55-70℃. Vicat softening temperature (VST, B50): 145-155℃. Service temperature range: -20℃ to 110℃ (continuous).
Electrical Properties
Volume resistivity: >10¹⁵ Ω·cm. Dielectric strength: 20-25 kV/mm. PPTD20 is not typically used for high-demand electrical insulation but suffices for basic insulation applications.
Data Sheet Interpretation Key Points
All values in the data sheet are typical values under standard test conditions. Actual injection-molded part performance can be significantly affected by processing conditions and mold design. The same PPTD20 data sheet may yield parts with mechanical properties differing by 10%-20% on different injection molding machines. Therefore, data sheet values should primarily be used for initial material screening and comparative evaluation, not as final design basis. Practical injection validation and component testing are recommended after material selection.
