DOP PLASTICIZER – DIOCTYL PHTHALATE

1. Product Description

DOP (Dioctyl Phthalate) is a traditional and widely used plasticizer in the production of flexible PVC.
It is a clear, colorless liquid, insoluble in water but highly soluble in most organic solvents and polymers.

DOP is used to enhance flexibility, softness, elasticity, and processability of plastics. It shows excellent compatibility with PVC, PS, PU, cellulose acetate (CA), and NBR, helping materials resist brittleness and cracking under bending or thermal stress.

Chemical Formula: C₂₄H₃₈O₄
Chemical Name: Bis(2-ethylhexyl) phthalate
Molecular Weight: 390.56 g/mol
Boiling Point: ~ 384 °C
Density: 0.982 – 0.986 g/cm³ (at 25 °C)
CAS No.: 117-81-7

DIOCTYL PHTHALATE

2. Key Features

Enhances flexibility and softness, especially for flexible PVC applications
Good thermal and UV stability, extending product service life
Broad compatibility with various polymers: PVC, PS, PU, NBR, EVA
Low volatility, minimizing plasticizer loss during long-term use
Cost-effective, easy to blend and process – a standard industrial choice

3. Typical Applications

DOP plasticizer is widely used across multiple industries:

Flexible PVC: electrical wires and cables, hoses, vinyl flooring, synthetic leather, films
Rubber industry: improves elasticity, flexibility, and crack resistance in synthetic rubber
Inks & adhesives: enhances softness, adhesion, and film-forming properties
Construction & interior materials: waterproof membranes, roofing materials, electrical insulation
Consumer products: packaging films, toys, and medical items where phthalate-free compliance is not required

4. Selection & Usage Guidelines

For optimal performance when using DOP Plasticizer, consider the following:

Base polymers: PVC, PS, PU, EVA, synthetic rubber
Recommended dosage: typically 20 – 40 phr (parts per hundred resin), depending on desired softness
Processing temperature: optimal range 160 – 200 °C
Additive compatibility: can be combined with heat stabilizers, antioxidants, and lubricants to optimize performance
Safety precautions: avoid inhalation, prolonged skin contact, or environmental release; follow chemical handling regulations

5. Why Choose Our DOP

High purity ≥ 99.5%, compliant with ISO 9001:2015 standards
Clear appearance, controlled viscosity, and excellent compatibility with PVC
Stable supply, fast delivery, and competitive pricing
Technical support, formulation guidance, and free sample testing available
Available from domestic sources or imported origins (Korea, Malaysia, Taiwan, China)