Polyamide resin

Description

1. Product Overview
Polyamide resin is a high-performance, thermoplastic polymer derived from the condensation of diamines and dibasic acids, renowned for its exceptional mechanical strength, chemical resistance, and thermal stability. Its primary industrial use lies in high-durability coatings, adhesives, printing inks, and engineering plastics, where it serves as a binder or structural matrix. The key value proposition is its ability to deliver superior adhesion to difficult substrates (metals, plastics, films) while maintaining flexibility under extreme temperatures. Strategically, this product is critical as industries shift toward lightweighting, corrosion protection, and solvent-compliant formulations in automotive, packaging, and industrial maintenance sectors.

2. Key Specifications & Technical Characteristics

• Chemical composition: Polycondensate of dimer fatty acid (C36) and ethylenediamine (or alternative aliphatic diamines)

• Purity / Grade: Industrial grade (≥98.5% active resin); available in low-amine value (<5 mg KOH/g) and high-softening-point variants

• Physical characteristics:

  • Form: Solid granules, micronized powder, or flake

  • Color: Pale yellow to light amber

  • Softening point (ring & ball): 100–160°C (selectable by grade)

  • Particle size: 2–5 mm granules or 200–600 µm powder

  • Density (bulk): 0.98–1.05 g/cm³

  • Viscosity (melt, 160°C): 200–2,000 mPa·s

• Packaging options: 25 kg multi-wall paper bags with PE liner; 500 kg FIBC super sacks; heat-sealed aluminum foil bags for moisture-sensitive applications

• Shelf life: 24 months when stored below 40°C in original sealed packaging, away from UV and oxidizing agents

3. Core Industrial Applications

• Primary industries: Flexible packaging lamination, industrial powder coatings, hot-melt adhesives, anti-corrosion primers, and engineering thermoplastics (compounding)

• Specific use cases:

  • Printing inks (rotogravure & flexo): Enhances pigment wetting, block resistance, and adhesion to treated PE/PP films – outperforms nitrocellulose in low-VOC systems

  • Epoxy hybrid powder coatings: As a curing agent or modifier, improves flexibility and impact resistance without sacrificing chemical resistance – ideal for pipeline and rebar coatings

  • Hot-melt adhesives for automotive interiors: Provides high heat resistance (up to 180°C) and creep recovery, replacing EVA in demanding assemblies

• Performance advantage: Superior adhesion to low-energy surfaces, excellent oil/grease resistance, and lower moisture absorption (0.3–0.8% vs. 1.5–2.0% for standard polyamide 6/6)

4. Competitive Advantages

• Quality consistency: Lot-to-lot viscosity and amine value controlled within ±3% via ISO 9001:2025 certified reactors; SPC data available upon request

• Supply reliability: Dual-sourced dimer fatty acid feedstock from EU and Asia; safety stock held at three regional hubs (Rotterdam, Houston, Shanghai)

• Logistics capability: Just-in-time delivery with real-time track & trace; vacuum-pelletized packaging prevents caking in high-humidity environments

• Price competitiveness: 8–12% cost advantage over European specialty producers due to continuous-process polymerization and byproduct recycling

• Sustainability & compliance: REACH and TSCA registered; available with ISCC PLUS certified bio-circular content (up to 35%)

• Technical support: Full SDS, BOM, and formulation guides; free 100g samples for qualification; on-call application engineering

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 5 metric tons (MT) for standard grades; 1 MT for premium micronized powder grades

• Bulk 20MT loading capacity: 20 MT per 20-ft container (net weight) – 800 x 25 kg bags or 40 x 500 kg FIBCs

• Note: Full container load (FCL) pricing available at 20 MT multiples. Lead time: 14 days ex-warehouse for MOQ; 30 days for custom softening point grades.