Sinanox® DLTDP / Dilauryl thiodipropionate CAS 123-28-4

(1 customer review)

Chemical NameAntioxidant DLTDP; Dilauryl thiodipropionate

CAS:123-28-4

Formula:C30H58O4S

MW:514.84

Structure:

Description

Sinanox® DLTDP / Dilauryl thiodipropionate CAS 123-28-4

Item Specifications
Appearance White  powder
Crystallization point ℃ 39.5~41.5
Volatile % ≤0.05%
Ash % ≤0.01%

Application:
Sinanox® DLTDP is an excellent auxiliary antioxidant, widely used in polypropylene, polyethylene, ABS, PBT and other synthetic materials, and can also be used in rubber processing and lubricating grease. This product is mostly used in combination with phenolic main antioxidants to produce a synergistic effect, which can greatly increase the antioxidant effect of the main antioxidant and improve the processing performance and service life of the product. Because of its low toxicity, it can be used to make food packaging films.

Storage:

Avoid exposure to the sun or high temperature storage, and should be stored in a cool, dry and ventilated place to prevent moisture, water, and heat.

Package:
Use carton lined with plastic bag, net weight of each box is 25kg

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Sinanox® TBHQ CAS 1948-33-0 Antioxidant TBHQ
Sinanox® SEED CAS 42774-15-2 Antioxidant SEED
Sinanox® PEPQ CAS 119345-01-6 Antioxidant PEPQ
Sinanox® PEP-36 CAS 80693-00-1 Antioxidant PEP-36
Sinanox® MTBHQ CAS 1948-33-0 Antioxidant MTBHQ
Sinanox® DSTP CAS 693-36-7 Antioxidant DSTP
Sinanox® DSTDP CAS 693-36-7 Distearyl thiodipropionate
Sinanox® DLTDP CAS 123-28-4 Dilauryl thiodipropionate
Sinanox® DBHQ CAS 88-58-4 Antioxidant DBHQ
Sinanox® 9228 CAS 154862-43-8 Irganox 9228 / Antioxidant 9228
Sinanox® 80 CAS 90498-90-1 Irganox 80 / Antioxidant 80
Sinanox® 702 CAS 118-82-1 Irganox 702 / Antioxidant 702 / Ethanox 702
Sinanox® 697 CAS 70331-94-1 Antioxidant 697 / Irganox 697 / Naugard XL-1 / Antioxidant 697
Sinanox® 626 CAS 26741-53-7 Ultranox 626 / Irgafos 126
Sinanox® 5057 CAS 68411-46-1 Irganox 5057 / Antioxidant 5057 / Omnistab AN 5057
Sinanox® 330 CAS 1709-70-2 Irganox 330 / Antioxidant 330
Sinanox® 3114 CAS 27676-62-6 Irganox 3114 / Antioxidant 3114
Sinanox® 3052 CAS 61167-58-6 IRGANOX 3052 / 4-methylphenyl Acrylate / Antioxidant 3052
Sinanox® 300 CAS 96-69-5 Irganox 300 / Antioxidant 300
Sinanox® 245 CAS 36443-68-2 Irganox 245 / Antioxidant 245
Sinanox® 2246 CAS 119-47-1 Irganox 2246 / BNX 2246
Sinanox® 1790 CAS 40601-76-1 Antioxidant 1790/ Cyanox 1790 / Irganox 1790
Sinanox® 1726 CAS 110675-26-8 Antioxidant 1726 / Irganox 1726 / Omnistab AN 1726
Sinanox® 168 CAS 31570-04-4 Irganox 168 / Antioxidant 168
Sinanox® 1520 CAS 110553-27-0 Irganox 1520 / Antioxidant 1520
Sinanox® 1425 CAS 65140-91-2 Irganox 1425 / Dragonox 1425 / Antioxidant 1425 / BNX 1425
Sinanox® 1330 CAS 1709-70-2 Irganox 1330 / Ethanox 330
Sinanox® 1222 CAS 976-56-7 Antioxidant 1222 / Irganox 1222
Sinanox® 1135 CAS 125643-61-0 Irganox 1135 / Antioxidant 1135
Sinanox® 1098 CAS 23128-74-7 Irganox 1098 / Antioxidant 1098
Sinanox® 1076 CAS 2082-79-3 Irganox 1076 / Antioxidant 1076
Sinanox® 1035 CAS 41484-35-9 Irganox 1035 / Antioxidant 1035
Sinanox® 1024 CAS 32687-78-8 Irganox 1024 / Antioxidant 1024
Sinanox® 1010 CAS 6683-19-8 Irganox 1010 / Antioxidant 1010

 

Phenolic antioxidant coordination effect
1, synergistic effect

When two chain-terminating antioxidants such as hindered phenols and used, the high activity of the antioxidant gives hydrogen atoms, so that the free radicals are inactive; and low activity of the antioxidant can be for the high activity of the antioxidant supply of hydrogen atoms to regenerate it, so that the long-term effectiveness of the effectiveness of the antioxidant effect is better. Different spatial obstruction of the antioxidant when used in conjunction, but also inhibit the free radical transfer effect. For example, after the termination of peroxyl radicals (ROO・) by highly active hindered phenols, the aryloxyl radicals generated can easily trigger oxidative aging of macromolecules. The low activity hindered phenol can make the aryloxyl radicals to generate the high activity hindered phenol, thus avoiding the chain transfer effect caused by the interaction of aryloxyl radicals and macromolecules.

 

Hindered phenol and hydroperoxide decomposer and use, on the one hand, can make the main antioxidant regeneration, on the other hand, can decompose hydroperoxide, synergistic effect is stronger, is the current plastics antioxidant is often used in the ‘golden partner’, such as antioxidant 1010 and antioxidant 168 of the use of the antioxidant. The same molecule with two or more different stabilisation mechanisms and the synergistic reaction, known as self-synergistic effect. For example, the antioxidant 300 and the antioxidant 2246-S, simultaneously function as primary and secondary antioxidants.

In addition, the main antioxidant and ultraviolet absorber, metal ion passivator may also produce synergistic effect. Composite stabiliser of the main antioxidant for phenolic antioxidants, such as antioxidant 1010, antioxidant 1076, antioxidant 264, etc., the secondary antioxidant for the phosphite, antioxidant 168, the mainstream composite antioxidant varieties on the market are mostly imported products.

2, against the effect

Two kinds of antioxidants and with each other to weaken their beneficial effects, there is a confrontation effect, such as amines and phenolic antioxidants on polyethylene plastics is the main antioxidant is effective, carbon black is also very effective antioxidant, but when amines or hindered phenolic antioxidants added to the polyethylene containing carbon black, the two are not only no synergistic effect, but rather than the original stability of their respective effects are worse, that is, the antagonistic effect is produced. This antagonistic effect is not only related to the type of antioxidant, but also with the resin varieties also have a relationship, such as in ABS plastics and carbon black and hindered phenol, not only no antagonistic effect, but also showed a greater synergistic effect.

3, strong oxidation effect

When the concentration of antioxidant in the polymer system exceeds a certain value, the antioxidant directly with the molecular oxygen reaction increased, antioxidant molecules are prone to the formation of new free radicals and produce a strengthened oxidation reaction. Therefore, the general use of antioxidants have a critical concentration of the best use of the concentration range, otherwise the dosage is too much instead of producing a strengthened oxidation reaction, thereby accelerating the aging of polymers.

1 review for Sinanox® DLTDP / Dilauryl thiodipropionate CAS 123-28-4

  1. Henry Cooper

    Outstanding service, quick responses, seamless logistics, wonderful shopping!

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