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Specialty Plasticizers: DOP, DOA, TOTM

A&D Polymers offers high-performance specialty plasticizers—DOP, DOA, and TOTM—tailored for superior flexibility, thermal stability, and chemical resistance in diverse polymer applications across PVC, rubber, and specialized high-temperature processing.

Description

Plasticizers are essential additives used to modify the physical properties of polymers, primarily enhancing flexibility, workability, and processability. A&D Polymers provides a specialized portfolio of plasticizers including Dioctyl Phthalate (DOP), Dioctyl Adipate (DOA), and Trioctyl Trimellitate (TOTM), each engineered for targeted applications in PVC, rubber, and high-performance plastics.

As part of our commitment to technical excellence and customer-driven solutions, these plasticizers are selected for their ability to improve product softness, durability, and thermal behavior in both standard and demanding industrial applications.

Functional Properties

DOP (Dioctyl Phthalate)

DOP is the most widely used phthalate plasticizer for PVC applications. It provides excellent compatibility, low volatility, and cost-efficiency, making it a reliable choice in flexible PVC formulations.

Key Functions:

  • Enhances flexibility in soft PVC

  • Maintains consistent performance over a wide temperature range

  • Provides balanced plasticizing efficiency and permanence

DOA (Dioctyl Adipate)

DOA is an aliphatic ester known for its low-temperature flexibility and UV resistance. It’s commonly used in outdoor applications and plastic films that demand long-term clarity and softness.

Key Functions:

  • Offers excellent low-temperature performance

  • High resistance to cold and UV degradation

  • Superior compatibility with light-sensitive compounds

TOTM (Trioctyl Trimellitate)

TOTM is a high-performance plasticizer for high-temperature and long-term applications. It provides superior extraction resistance and is highly suited for medical, automotive, and electrical insulation uses.

Key Functions:

  • Outstanding thermal stability and permanence

  • Excellent resistance to chemical migration

  • High retention of properties in high-heat environments

Areas of Application

DOP Applications

  • Flexible PVC cables and wires

  • Synthetic leather

  • Flooring and wall coverings

  • Footwear soles

  • Automotive interiors

DOA Applications

  • Food-grade cling films and packaging

  • Outdoor vinyl products

  • Flexible tubing and hoses

  • Waterproof clothing

  • Automotive seals

TOTM Applications

  • Medical-grade vinyl (tubing, blood bags)

  • Automotive wire insulation

  • High-temp electrical cables

  • Gaskets and seals

  • Aerospace and defense-grade materials

Key Benefits and Performance Enhancements

  • Enhanced Flexibility: All three plasticizers improve the plasticity of polymers, allowing for better shaping and molding during processing.

  • Improved Processability: Optimize melt flow and reduce processing temperature requirements.

  • Thermal & UV Stability: DOA and TOTM significantly extend product lifespan in outdoor and high-heat environments.

  • Migration Resistance: TOTM exhibits superior resistance to leaching, ideal for critical applications like healthcare and wiring.

  • Cost-Effectiveness: DOP remains a preferred economic solution for general-purpose flexible PVC formulations.

  • Regulatory Compliance: Select grades of DOA and TOTM meet regulatory requirements for food contact and medical use, depending on formulation.

Technical Characteristics

Property DOP DOA TOTM
Chemical Structure Di-ester of phthalic acid Di-ester of adipic acid Tri-ester of trimellitic acid
Molecular Weight (g/mol) ~390 ~370 ~546
Flash Point (°C) > 195 > 196 > 230
Boiling Point (°C) ~386 ~417 ~410
Specific Gravity (20°C) ~0.985 ~0.920 ~0.985
Compatibility with PVC Excellent Very Good Excellent
Cold Flexibility Moderate Excellent Good
Heat Resistance Moderate Good Excellent
Migration Resistance Moderate Moderate Excellent

Why Choose A&D Polymers?

At A&D Polymers, we go beyond supplying additives—we partner with our clients to deliver customized, application-driven solutions. With a global supply network and a commitment to localized customer support, we ensure rapid delivery, technical guidance, and sustainable formulations.

Our specialty plasticizers are carefully sourced and quality-controlled to meet the most demanding industrial specifications. Whether your application requires economic versatility, cold-weather performance, or high-heat endurance, our expert team is ready to recommend the ideal plasticizer solution tailored to your production goals.

Partner with A&D Polymers to enhance your polymer systems with reliable, innovative plasticizer solutions—engineered for performance, driven by precision.

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