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PCL-2000 Series Polycaprolactone Diols

Categories Polyester Polyol
Series: PCL-2000
Payment Terms: T/T,L/C
Appearance at 25°C: Liquid to Waxy Solid
Product Name: Polycaprolactone Diols
Model Number: PCL-2000
Delivery Time: 7-15 working days
Place of Origin: Shandong, China
Brand Name: EXCEEDCHEM
MOQ: 200 Kilograms
CAS Number: 24980-41-4
Shelf Life: 12 months in sealed original packaging
Certification: ISO 9001:2015
Packaging Details: Standard 200kg painted steel drum with moisture-proof inner liner; 20kg pail available upon request; ISO tank container for bulk delivery
Molecular Weight Range: 400-4000 g/mol
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PCL-2000 Series Polycaprolactone Diols

PCL-2000 Series Polycaprolactone Diols
The PCL-2000 Series represents a premium family of polycaprolactone diols synthesized via ring-opening polymerization of ε-caprolactone monomer. Engineered for demanding polyurethane applications, this series combines the advantages of conventional polyester, polyether, and polycarbonate polyols into a versatile, high-performance chemical intermediate.
With molecular weights ranging from 400 to 4,000 g/mol across 11 precisely engineered grades, each variant features exceptionally narrow molecular weight distribution, low acid values, and minimal water content for consistent processing behavior and reliable end-product performance.
Technical Specifications
GradeMW (g/mol)Appearance (@25°C)Color (APHA)OHV (mg KOH/g)Acid Value (mg KOH/g)Water (wt%)M.P. (°C)Viscosity (mPa*s @65°C)
2044400Liquid≤30280±10≤0.5≤0.03N/A45
2053530Liquid≤30212±8≤0.05≤0.03N/A60
2083830Pasty Solid≤30135±4≤0.05≤0.0335-50115
21021000Waxy Solid≤30112±4≤0.03≤0.0335-50150
21051000Waxy Solid≤30112±4≤0.03≤0.0335-50160
22022000Waxy Solid≤3056±2≤0.03≤0.0345-55400
22042000Waxy Solid≤3056±2≤0.03≤0.0345-56400
22052000Waxy Solid≤3056±2≤0.03≤0.0345-56400
23023000Waxy Solid≤3037±2≤0.03≤0.0350-58830
23043000Waxy Solid≤3037±2≤0.03≤0.0350-58950
24044000Waxy Solid≤3028±2≤0.03≤0.0350-601700
Key Performance Advantages
Superior Hydrolytic Stability
Outperforms conventional polyester polyols in humid environments, extending end-product service life.
Excellent Mechanical Toughness
Delivers high tensile strength, tear resistance, and flex fatigue endurance for demanding applications.
Low-Temperature Flexibility
Maintains elasticity and impact resistance at sub-zero temperatures for automotive and outdoor use.
Narrow MW Distribution
Precisely controlled polymerization ensures consistent viscosity, reactivity, and polyurethane network architecture.
Low Acid & Water Content
Strict quality control minimizes side reactions during prepolymer synthesis for reliable performance.
Broad Grade Selection
11 grades from 400 to 4000 MW, covering liquid, pasty solid, and waxy solid forms for every formulation need.
Key Applications
  • Thermoplastic Polyurethanes (TPU): High-performance elastomeric parts, automotive components, cable jackets, and pneumatic hoses requiring high toughness and flex fatigue resistance.
  • PU Elastomers & Castings: Industrial wheels, rollers, seals, and gaskets exposed to humid and high-wear environments where conventional polyester polyols fail prematurely.
  • CASE Applications: Premium polyurethane coatings, reactive hot-melt adhesives (HMA), synthetic leather finishes, and flexible surface coatings with extended outdoor durability.
  • Microcellular Foams: Shoe sole midsoles, automotive interior foams, and specialty cushioning materials demanding resilience and compression set resistance.
Packaging, Storage & Handling
Packaging
Standard packaging in specialized painted steel drums (200 kg net weight). Small pails (20 kg) available upon request. Bulk delivery via ISO tank containers supported for high-volume requirements.
Storage
PCL diols are hygroscopic. Store in cool, dry, well-ventilated areas away from direct sunlight, air contact, moisture, and heat sources. Keep containers tightly closed and consume immediately upon opening. Recommended storage temperature: 10-35°C.
Shelf Life
12 months from date of manufacture when stored in original sealed packaging under recommended conditions.
Transportation
Protect against moisture, rain, mechanical shock, package damage, and contamination. Transport must adhere to relevant local chemical transportation regulations.
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