Antioxidant ST - 300

Molecule Weight:358.5                                   Molecular Formula: C₁₁H₁₆O

Chemical structural formula：

Quality Standard:

 Product Introduction:

Antioxidant 300 is a typical thiobisphenol antioxidant. Due to the particularity of its structure, it has the double functions of free radical terminator and hydrogen peroxide decomposition agent, and shows excellent synergistic effect when it is shared with carbon black, which is incomparable with common antioxidants. It is an effective main antioxidant for rubber, polyolefin, plastic and other products, especially for polyethylene cable and wire. Therefore, this kind of antioxidant is widely used in cable and wire industry at home and abroad. 

This antioxidant is used as an antioxidant for polyene food packaging materials. Its limit is: 0.05% for low-density polyethylene, 0.25% forhigh-density polyethylene.

Performance advantages: the use of 300 antioxidants in polyethylene has the following advantages:

1. Better maintain the physical properties of its raw materials (such as tensile strength, elongation, melting index, etc.).

2. Its electrical properties are well preserved.

3. Good thermal stability.

4. Enhance the weather resistance of products.

5. Anti-aging effect is four times that of general anti-aging agent.

6. Less volatile than other commonly used antioxidants.

7. It has special synergistic effect when shared with carbon black.

The crystalline product of antioxidant 300 has the following advantages:

1, light color 2, high crystallinity 3, tasteless 4, in polyethylene in the efficiency of crude products increase 10-15%

 Recommend dosage：

Packing: Paper tube lined with plastic bag, net weight: 25Kg/ drum, or kraft paper bag lined with plastic bag, 25Kg per bag.