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Epoxidized Soybean Oil (ESBO) from WSD CHEMICAL is a bio-based, non-phthalate plasticizer and highly effective secondary heat stabilizer for PVC and other chlorinated polymers. Derived from renewable soybean oil, it acts as a "green" stabilizer by scavenging hydrochloric acid (HCl) released during PVC processing, thereby synergistically enhancing the performance of primary stabilizer systems (like calcium-zinc or organotin from WSD CHEMICAL). It is the ideal choice for manufacturers seeking to improve product thermal stability, migration resistance, and environmental profile.
Item | Index | Test Method |
Appearance | Clear, Pale Yellow, Viscous Liquid | Visual |
Oxirane Oxygen Content | ≥ 6.5% | GB/T 1677 / AOCS Cd 9-57 |
Iodine Value | ≤ 3.0 g I₂/100g | GB/T 1676 |
Acid Value | ≤ 0.5 mg KOH/g | GB/T 1668 |
Moisture Content | ≤ 0.1% | Karl Fischer |
Density (25°C) | 0.985 - 1.000 g/cm³ | GB/T 4472 |
Flash Point (COC) | ≥ 280 °C | GB/T 3536 |
Excellent Secondary Heat Stabilizer: The epoxy groups in WSD CHEMICAL's ESBO effectively react with and neutralize HCl generated during PVC degradation. This "scavenging" action significantly extends the initial color hold and long-term thermal stability of the compound, especially when used with WSD CHEMICAL's primary Ca/Zn or organotin stabilizers.
Bio-based & Non-Phthalate Plasticizer: As a derivative of renewable soybean oil, ESBO is a sustainable, non-toxic alternative to phthalates. It imparts good flexibility and low-temperature properties to PVC, aligning with global trends towards greener materials.
Superior Migration & Extraction Resistance: Exhibits very low volatility and excellent resistance to migration and extraction by water, oils, and solvents. This ensures the long-term flexibility and stability of the final product, preventing surface stickiness or hardening.
Enhanced Light Stability & Weatherability: Contributes to improved UV resistance and weatherability in finished products, making it beneficial for outdoor applications.
Good Compatibility & Synergistic Effect: Compatible with a wide range of PVC resins and additives. When combined with metal soap stabilizers from WSD CHEMICAL, it creates a powerful synergistic effect, often allowing for a reduction in the primary stabilizer dosage without compromising performance.
· PVC Products: Rigid and flexible PVC profiles, pipes, tubes, films, sheets, flooring, and synthetic leather.
· Wire & Cable: Used in non-toxic, low-smoke, and halogen-free flame-retardant (LSZH) cable compounds to improve thermal stability.
· Food Contact & Medical Applications: Approved for use in many food contact and medical device applications due to its non-toxic, bio-based nature (subject to regional compliance verification).
· Adhesives & Sealants: As a non-migrating plasticizer and stabilizer.
· Other Polymers: Can be used as a stabilizer/plasticizer in polyvinyl butyral (PVB) and other chlorine-containing polymers.
· As a Secondary Stabilizer: Typically used at 2 - 5 phr (parts per hundred resin).
· As a Co-plasticizer: Can be used at 5 - 10 phr to impart flexibility and reduce formulation cost.
· Synergistic Formulations: For optimal results, combine with WSD CHEMICAL's primary heat stabilizers (e.g., calcium-zinc complexes). Our technical team can provide tailored advice on the ideal ratio for your specific application.
· Packaging: Available in 200 kg drums, 1000 kg IBC totes, and flexi tank loads. WSD CHEMICAL offers reliable and secure packaging solutions.
· Storage: Store in a cool, dry, well-ventilated area away from direct sunlight and heat sources. Keep containers tightly sealed to prevent moisture absorption, which can affect oxirane content.
· Shelf Life: 24 months from the date of manufacture when stored under recommended conditions.
· Safety Profile: ESBO from WSD CHEMICAL is generally recognized as safe for many applications. It is non-toxic and has a high flash point. Standard industrial hygiene practices are recommended during handling.
· Regulatory Compliance: Compliant with many international regulations for food contact materials (e.g., EU, FDA). WSD CHEMICAL recommends verifying specific regulations (such as migration limits) for your intended use and market. A comprehensive Safety Data Sheet (SDS) is available upon request.
1.Epoxidized soybean oil/ESBO is good result, compitive price plasticizer, PVC stabilizer
2.Epoxidized soybean oil have many applications on plastics
3.Epoxidation of soybean oil usually used with other plasticizer and PVC stabilizer together