Antioxidant DSTDP
What is Antioxidant DSTDP?
Antioxidant DSTDP stands for Distearyl Thiodipropionate. It is a secondary antioxidant primarily used to prevent the degradation of polymers during processing and long-term use
Antioxidant DSTDP
Antioxidant DSTDP: Anti-Aging Solutions for PE,PP,PS,ABS,PET, PBT,PA
Chemical Name:
Distearyl thiodipropionate
| Formula | C42H82O4S | ![]() |
| Molecular Weight | 683 | |
| CAS# | 693-36-7 |
Specification:
| Appearance | White crystalline powder | |
| Ash | Max.0.10% | |
| Melting point | 63.5-68.5℃ | |
| Solubility(20℃) | Water | <0.1 |
| MeoH | <0.01 | |
| EtoH | <0.01 | |
| Acetone | U | |
| Ch2Cl2 | S | |
| Hexane | S | |
RELATED ANTIOXIDANT
The Role of Antioxidant in Plastic
Antioxidants play a critical role in maintaining the stability, durability, and performance of plastic materials throughout their lifecycle. Without antioxidant protection, plastics are prone to degradation during processing and long-term use, which can result in discoloration, brittleness, loss of mechanical strength, and reduced lifespan.
Key Functions of Antioxidants in Plastics:
Thermal Stabilization:
During high-temperature processing like extrusion or molding, plastics are exposed to oxygen which can cause oxidative degradation. Antioxidants help neutralize free radicals and prevent this damage.
Long-Term Aging Resistance:
In end-use environments, especially under heat, light, or oxygen exposure, antioxidants maintain the polymer’s integrity and appearance over time.
Preservation of Properties:
Helps in retaining color, elasticity, tensile strength, and other key physical properties of plastic materials.
Antioxidants
| Name | CAS No. | Application |
ANTIOXIDANT | ||
| Ecochem AO -1010 | 6683-19-8 | PP, PE, EVA, PVC, EPDM, ABS,PA,SBS, PU,TPU,POM,PET, PBT |
| Ecochem AO -1076 | 2082-79-3 | PP,PE,PVC,PC,ABS, PS,SBS,POE,EVA,EPDM,TPE,TPU, PMMA |
| Ecochem AO -3114 | 27676-62-6 | PP,PE,ABS,PS,PA,PU |
| Ecochem AO -1098 | 23128-74-7 | PP,PE,PA,Elastomer |
| Ecochem AO -1035 | 41484-35-9 | PE,PVC,PA,PU,ABS,SBS,PS,PET,PBT,PVA |
| Ecochem AO -1024 | 32687-78-8 | PP,PE,PA,PU,Polyacetals, Elastomer |
| Ecochem AO -168 | 31570-04-4 | PP,PE,EVA,PA,PC,PC/ABS,PS,ABS, PMMA, PET, PBT, POM, Elastomer |
| Ecochem AO -626 | 26741-53-7 | PE,PE,EVA,PS,ABS,PA,PC, Elastomer |
| Ecochem AO-DSTDP | 693-36-7 | PE,PP,PS,ABS,PET,PBT,PA |
| Ecochem AO-DLTDP | 123-28-4 | PE,PP,ABS,PA,PET,PBT |
Antioxidant DSTDP
Antioxidant DSTDP (also known as AO DSTP) is an effective secondary antioxidant, widely used in polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), ABS, and lubricating oils. It features a high melting point and low volatility, making it suitable for high-temperature processing applications.
When used in combination with phenolic antioxidants and UV absorbers, Antioxidant DSTDP exhibits a synergistic effect, significantly enhancing the overall thermal and light stability of polymer systems.
Ecochem offers a full range of
Application

Agricultural Film Application
Elevate the performance of your agricultural films with our premium polymer additives, designed to enhance durability, flexibility, and UV resistance. Ensure lasting protection for your crops and invest in sustainable farming success with solutions tailored for the agricultural challenges. Discover the difference with our additives today.

Automotive Plastic Application
Optimize your automotive components with our innovative polymer additives, designed for superior durability, heat resistance, and UV stability. Elevate performance, enhance safety, and ensure longevity in every ride. Drive innovation with our advanced solutions today.

Packing Application
Transform your packaging materials with our advanced polymer additives, engineered for enhanced strength, flexibility, and durability. Experience superior protection and performance in every package, ensuring product safety and extending shelf life. Revolutionize your packaging with our innovative additives today.

Artifical Grass Application
Ecochem LS-119 is the finest option on the market for ensuring light durability and acid rain resilience in polymers used in artificial grass applications

Building & Construction Application
Plastic additives are essential components in the production of Wood Plastic Composite (WPC) plastic floors. WPC plastic floors are a popular choice among homeowners and business owners due to their durability, easy maintenance, and resistance to moisture, insects, and rotting.

Coating & Elastomers Application
The coating of a lens or camera with a UV absorber decreases the amount of light that passes through, which is why it is used in sunglasses to protect the eyes from the damaging effects of the sun.
The Antioxidant DSTDP You Need









