Polyester Polyol XF-270 for Controlled-Release Fertilizer Coating
Polyester Polyol XF-270 is a specialized resin designed for controlled-release fertilizer coating applications. With a hydroxyl value of 260±10 mgKOH/g and ultra-low moisture content (≤0.1%), it offers consistent reactivity and film-forming properties for durable, effective release control.
Key Selling Points
- Controlled Release Efficiency: Specifically formulated for fertilizer coating, ensuring predictable nutrient release patterns to improve crop yield and reduce environmental impact. (Source: product type)
- Low Moisture Content (≤0.1%): Minimizes unwanted side reactions during coating, leading to a more consistent and stable polymer matrix. (Source: parameter)
- Precise Hydroxyl Value (260±10 mgKOH/g): Allows formulators to achieve targeted crosslinking density and coating hardness for specific release profiles. (Source: parameter)
- Consistent Viscosity (3000±500 CPS at 25°C): Provides predictable handling and spray characteristics, enabling uniform coating application. (Source: parameter)
- ISO 9001 Certified Production: Manufactured under a certified quality management system, ensuring batch-to-batch consistency. (Source: ISO 9001 cert)
Technical Specifications
| Property | Value |
|---|
| Hydroxyl Value (mgKOH/g) | 260±10 |
| Acid Value (mgKOH/g) | ≤3±0.2 |
| Moisture (%) | ≤0.1 |
| Viscosity (CPS, 25°C) | 3000±500 |
| Raw Materials | PA, PTA, AA, DEG, GLY, etc. |
Models and Options
XF-270 is one of three polyester polyol grades offered for controlled-release fertilizer coating:
- XF-270: Hydroxyl value 260±10, moisture ≤0.1%
- XF-B-3: Hydroxyl value 300±30, moisture ≤0.15%
- XF-B-4: Hydroxyl value 370±20, moisture ≤0.15%
This grade is available in standard packaging options such as IBC drums (1200 kg or 1000 kg) and galvanized iron drums (225 kg, 200 kg, or 170 kg).
Materials and Structure
XF-270 is a polyester polyol synthesized from raw materials including phthalic anhydride (PA), purified terephthalic acid (PTA), adipic acid (AA), diethylene glycol (DEG), and glycerol (GLY). These monomers undergo polycondensation to yield a hydroxyl-terminated oligomer with a controlled architecture, designed for reactive blending with isocyanates.
Applications
- Controlled-release fertilizer coating: Provides a semi-permeable membrane that regulates nutrient diffusion, reducing leaching and improving fertilizer use efficiency.
- Polyurethane systems: As a polyol component in adhesives and sealants where tailored flexibility and adhesion are required.
Frequently Asked Questions
What is the typical delivery time for XF-270?
Delivery time varies by order size and destination. Please contact our sales team for specific lead times and shipping quotes.
What is the minimum order quantity (MOQ)?
MOQ is flexible and can be adjusted according to customer requirements. Please discuss with us for your specific needs.
Can XF-270 be customized for lower viscosity?
Yes, we offer customization services to tailor viscosity and other parameters to specific application requirements. Contact us to discuss your needs.
How is the product packaged?
XF-270 is available in IBC drums (1200kg or 1000kg) and galvanized iron drums (225kg, 200kg, 170kg). Custom packaging is available upon request.
What quality certifications does your company hold?
We are certified under ISO 9001:2015 (Quality Management System), ISO 14001:2015 (Environmental Management), and ISO 45001:2018 (Occupational Health and Safety).
Can you provide samples for testing?
Yes, samples are available for testing purposes. Please contact us to arrange sample shipment.
Inquiry Information
For pricing, availability, or technical consultation, please contact:
- Email: admin@xinfapu.com
- Phone: +86 156-3365-7995
- WhatsApp: +86 166-3389-3646
Our team is ready to assist with your polyester polyol requirements.
