In the global flexible PVC and polymer compounding industries, finding a dependable balance between performance economy and compound longevity is essential. Plasticizer DINP (Diisononyl phthalate) is established worldwide as a major high-molecular-weight vinyl softener. Chemically recognized under CAS No. 28553-12-0 (and 68515-48-0), DINP delivers a larger molecular footprint than traditional low-molecular alternatives like DEHP (DOP). This heavy molecular chain structure yields reduced volatility during thermal extrusion, superior cold flexibility, and an extended outdoor service life for various everyday commercial and industrial products.
Technical Product Specifications
| Property / Parameter | Standard Specification |
|---|---|
| Chemical Name | Diisononyl phthalate (DINP) |
| CAS Number | 28553-12-0 / 68515-48-0 |
| Molecular Formula | C26H42O4 |
| Appearance | Clear, colorless, oily liquid, free of suspended matter |
| Ester Content (%) | ≥ 99.5% |
| Density at 20°C (g/cm³) | 0.970 – 0.975 g/cm³ |
| Color (APHA / Hazen) | ≤ 25 |
| Acid Value (mg KOH/g) | ≤ 0.04 |
Why Choose Our DINP Plasticizer?
- ✓ Superb Polymer Compatibility: DINP exhibits excellent fusion properties and optimal solvency with PVC resins, reducing gelation times and energy consumption during compounding.
- ✓ Low Volatility & Lasting Softness: With a higher molecular weight than standard commodities, it resists premature evaporation and thermal extraction, ensuring long-term elasticity of the vinyl matrix.
- ✓ Outstanding Electric Insulation: Due to its low moisture permeability and high volume resistivity parameters, it functions as an excellent insulating plasticizer base for wiring components.
Primary Applications
DINP serves as a highly versatile component across multiple processing techniques, including extrusion, calendering, injection molding, and plastisols:
Wire, Cable & Automotive
Perfect for standard building wires, power cable insulation sheets, flexible automotive electrical tape coverings, and molded mechanical vinyl fixtures.
Industrial Sheets & Building Materials
Extensively applied to manufacture high-durability roofing membranes, waterproof tarpaulins, synthetic leather coverings, vinyl flooring layers, and flexible garden hoses.
Plastisols & Coated Fabrics
Highly favored for slush molding, industrial glove dipping, screen-printing textile pastes, protective underbody vehicle seals, and soft sealants.
Quality Assurance & Global Compliance
As a leading international supplier, we understand that substance purity, molecular consistency, and strict regulatory tracking directly safeguard your production lines. Our advanced chemical refineries operate under strict control standards to ensure stable international integration:
- Advanced Analytical Quality Control: Every delivery batch of our DINP plasticizer liquid undergoes strict gas chromatography (GC) verification, moisture verification, and colorimetric index monitoring to maintain unyielding batch purity metrics.
- Comprehensive Regulatory Alignment: We maintain up-to-date tracking structures across continents. Our DINP comes with fully integrated multilingual GHS Safety Data Sheets (SDS), technical datasheets, and certificates matching EU REACH parameters and regional criteria.
- Flexible Logistics Infrastructure: We provide diverse logistics delivery choices, including stainless steel ISO tank containers, intermediate bulk containers (IBC drums, 1000kg), and standard steel drums (200kg) packed under dry nitrogen padding to prevent ambient moisture intake.
⚠ Storage & Handling Guidelines
Maintaining appropriate climate controls is necessary to safeguard the long-term chemical purity of Plasticizer DINP liquid. While naturally stable, improper moisture or temperature exposure can cause a slow trace rise in acidity.
- • Warehouse Environment: Store the chemical containers in a cool, dry, and well-ventilated space. Keep storage zones separated from strong oxidizers, open spark risks, and high-heat processing equipment.
- • Moisture Protection: Phthalate liquids can absorb trace ambient humidity. Keep bung caps and container seals securely closed when not actively dispensing liquid to avoid atmospheric water absorption.
- • Inventory Shelf Life: Under appropriate sealed warehouse storage, our premium DINP carries a certified shelf life of 24 months from the date of manufacture. Utilizing a strict First-In, First-Out (FIFO) warehouse workflow is strongly recommended.
Frequently Asked Questions
What is the difference between DINP and low-molecular-weight phthalates like DEHP (DOP)? +
Is DINP authorized for use under international environmental frameworks? +
How does DINP function inside flexible PVC plastisol mixtures? +
Partner with a Reliable Chemical Supplier
We provide premium-grade, high-purity Plasticizer DINP liquid meticulously refined to meet your most demanding technical formulations. Available in ISO tanks, flexible bulk IBC containers (1000kg), and standard steel drums (200kg) under strict quality control to integrate seamlessly into your liquid dosing workflows.
