3-(3,5-Di-tert-butyl-4-hydroxyphenyl)propionic Acid Stearyl Ester, 99%

Product Introduction

Antioxidant 1076 is a high-efficiency sterically hindered phenolic primary antioxidant widely used in plastics, polymers, elastomers, adhesives, engineering materials, lubricants, and specialty formulations.

Chemically known as Octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, Antioxidant 1076 provides effective protection against thermal oxidation, processing degradation, and long-term oxidative aging in organic materials.

Due to its excellent compatibility, low volatility, high extraction resistance, light stability, and non-discoloring characteristics, Antioxidant 1076 is widely applied in polyolefin stabilization systems, engineering plastics, rubber compounds, coatings, and industrial additive packages.

Chemical Properties and Reaction Mechanism

Antioxidant 1076 functions primarily as a primary phenolic antioxidant and radical scavenger.

In oxidation systems:

• The hindered phenolic hydroxyl group donates hydrogen atoms to neutralize free radicals
• Interrupts autoxidative degradation chain reactions
• Reduces thermo-oxidative damage during polymer processing and service life

Key stabilization properties:

• Sterically hindered phenolic antioxidant structure
• Good polymer compatibility
• Low volatility and high permanence
• Excellent resistance to extraction and discoloration 

Antioxidant 1076 is frequently used together with secondary antioxidants such as phosphites and thioesters to achieve enhanced stabilization performance.

Key Research Applications

1.Polymer and Plastics Stabilization

Antioxidant 1076 is widely used in polymer antioxidant systems.

Typical applications include:

• Polyethylene (PE) stabilization
• Polypropylene (PP) processing protection
• Engineering plastic antioxidant systems
• Long-term thermal aging studies

2.Rubber and Elastomer Applications

Useful in rubber and elastomer formulations.

Applications include:

• Rubber oxidation inhibition
• Elastomer thermal stabilization
• Aging resistance enhancement
• Processing stabilization studies

3.Adhesives, Fibers, and Coatings

The compound is commonly used in organic material formulations.

Applications include:

• Hot-melt adhesive stabilization
• Synthetic fiber antioxidant systems
• Resin and coating durability improvement

4.Industrial Additive Development

Widely used in industrial formulation and additive research.

Applications include:

• Antioxidant package optimization
• Polymer additive compatibility studies
• Materials lifetime and performance evaluation

Recommended Experimental Conditions

Recommended dosage should be optimized according to substrate type, processing conditions, and target performance.

Advantages in Stabilization Applications

• Highly efficient hindered phenolic primary antioxidant
• Excellent thermal and oxidative protection
• Low volatility and low migration behavior
• High compatibility with polymer matrices
• Good color retention and non-staining performance
• Suitable for long-term stabilization applications

Storage & Handling

Research Areas

Researchers working in the following fields may benefit from this compound:

• Polymer and plastics stabilization research
• Rubber and elastomer chemistry
• Industrial additive formulation science
• Materials durability and aging studies
• Coatings, adhesives, and specialty materials research

Frequently Asked Questions (FAQ)

What is Antioxidant 1076 used for?
It is widely used as a primary phenolic antioxidant for protecting polymers and organic materials against thermal and oxidative degradation.

How does Antioxidant 1076 work?
It functions by scavenging free radicals and interrupting oxidation chain reactions, helping reduce degradation during processing and long-term use.

Which materials commonly use Antioxidant 1076?
Typical applications include polyolefins, engineering plastics, elastomers, adhesives, coatings, fibers, and specialty polymers.

Can Antioxidant 1076 be used with other stabilizers?
Yes, it is frequently combined with phosphite antioxidants, UV stabilizers, and thioester co-stabilizers for improved performance.

Why is Antioxidant 1076 widely used in polymer processing?
Because it offers good compatibility, low volatility, extraction resistance, light stability, and effective thermal oxidation protection.

Does antioxidant performance depend on formulation conditions?
Yes, parameters such as polymer type, additive concentration, processing temperature, and stabilizer combinations may influence final performance.