Current PPTD20 Market Price Overview
PPTD20, as a mainstream grade in the modified polypropylene family, has its price influenced by raw material costs (PP base resin, talc powder, additives) and supply-demand dynamics. During 2025-2026, PPTD20 domestic market quotes in China have generally fluctuated within the 6,500-8,500 CNY/ton range.
Specific prices vary considerably based on brand, purchase volume, and supply channel: First-tier modified material manufacturers (such as Kingfa, CGN GM, etc.) typically quote PPTD20 at 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 (such as OEM-certified grades) may reach 9,000-12,000 CNY/ton. Note that the above references apply to general-purpose PPTD20; flame-retardant or heat-resistant grades are significantly higher, typically at 12,000-15,000 CNY/ton.
Core Factors Affecting PPTD20 Price
PP base resin price fluctuations are the largest cost driver for PPTD20. Polypropylene is a petroleum derivative, and its price is strongly correlated with crude oil prices. When crude oil prices fluctuate significantly, 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 also affect final quotes.
Volume discounts under conventional procurement: scattered purchases (25kg/bag, under 1 ton) command the highest unit price, potentially 10%-15% premium over wholesale; single batch of 5-10 tons can enjoy 3%-5% discount; annual framework agreements (100+ tons) typically lock in prices with 5%-10%优惠.
Key Parameter Interpretation of PPTD20 Data Sheet (TDS)
The data sheet is the key document for evaluating whether PPTD20 meets design requirements. Here are the most important indicators in a typical PPTD20 data sheet:
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 significantly 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 generally not required.
Mechanical Properties
Tensile yield strength: 20-30 MPa, typical 25 MPa. Elongation at break: 10%-50%, decreases with higher talc filler content. Flexural strength: 30-40 MPa. Flexural modulus: 1,800-2,500 MPa, typical 2,200 MPa. Charpy notched 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 (Optional)
Volume resistivity: >10¹⁵ Ω·cm. Dielectric strength: 20-25 kV/mm. PPTD20 is typically not used for high-demand electrical insulation, but is generally sufficient as a basic insulation-grade material.
Key Points for Reading PPTD20 Data Sheets
Data sheet values are typical values under standard test conditions. Actual injection-molded part performance can be significantly affected by processing conditions, mold design, and other external factors. The same PPTD20 data sheet may yield products with mechanical properties differing by 10%-20% across different injection molding machines. Therefore, data sheet values should primarily be used for initial material screening and cross-comparison, not as final design basis. Practical injection validation and component performance testing are recommended after material selection is confirmed.
