polyacrylonitrile price

When sourcing PAN, the price is heavily influenced by molecular weight (Mw) and polydispersity index (PDI). For fiber spinning, a high molecular weight is essential for tensile strength. You must also verify the purity level (typically >99%) and the residual monomer content (Acrylonitrile), as high residuals can affect downstream polymerization and safety. Additionally, check the moisture content, which should be less than 0.5% to prevent clumping and processing defects.

PAN is categorized into Homopolymer and Copolymer grades. Homopolymer PAN is generally more expensive due to its use in high-performance carbon fiber production. Copolymers (often containing methyl acrylate or vinyl acetate) are priced differently based on the comonomer ratio, which improves solubility and dyeability for textile applications. Industrial-grade PAN for filtration membranes will have a lower price point compared to Specialty-grade PAN used in aerospace-grade carbon fiber precursors.

Suppliers must provide a Material Safety Data Sheet (MSDS/SDS) and comply with REACH regulations for the European market or TSCA for the US. Since PAN is a chemical precursor, ensure the manufacturer holds ISO 9001 for quality management and ISO 14001 for environmental management. For specific applications like water treatment membranes, look for NSF/ANSI certifications to ensure the material is safe for contact with drinking water.

The primary driver is the Carbon Fiber industry, where PAN serves as the precursor for over 90% of global production. Other major scenarios include Acrylic Fiber production for textiles (sweaters, blankets), Outdoor Awnings due to its UV resistance, and Technical Textiles like high-efficiency air and liquid filtration membranes. Understanding the end-use helps in negotiating the right viscosity and particle size with the supplier.

The biggest risks are quality inconsistency between batches and shipping delays due to hazardous material classifications. To mitigate this, always request a Pre-Shipment Inspection (PSI) and a Certificate of Analysis (COA) for every batch. Use Made-in-China.com's secured payment services to ensure funds are only released after the quality is verified by a third-party inspector like SGS or Intertek.

Negotiation should focus on volume-based pricing tiers and payment terms. For orders exceeding 10 tons, aim for a 5-10% discount off the spot price. Request Annual Quantity Contracts to lock in prices against the volatility of raw Acrylonitrile (AN) market prices. Additionally, negotiate for customized packaging (e.g., 500kg big bags vs. 25kg bags) to reduce labor costs during unloading.

While PAN powder is generally stable, it must be kept in a cool, dry, and well-ventilated warehouse away from heat sources. Ensure the supplier uses moisture-proof vacuum packaging to prevent degradation during sea freight. For shipping to specific regions, confirm the HS Code (typically 3906.90) with your customs broker to accurately calculate anti-dumping duties or VAT exemptions that may apply to chemical polymers.

Always conduct a factory audit or use the 'Audit Finished' supplier status on Made-in-China.com to verify the manufacturer's production capacity and legal existence. Avoid direct wire transfers to private accounts; instead, utilize Letter of Credit (L/C) for large volumes or Escrow services for smaller trial orders to protect your capital against non-delivery or sub-standard goods.