1. Application of antioxidant agent in cables

Common high-temperature cables are wrapped with a "rubber protective layer". When such a protective layer is damaged, the interior of the high-temperature cable will be damaged, making it impossible to continue to use it. Therefore, manufacturers will protect the outer rubber protective layer from aging. Anti-aging agent is involved in this process.

① Aging performance

Due to the different characteristics of each antioxidant, and the aging properties of different rubber formulations are different. Therefore, the most effective antioxidant for one rubber may be ineffective or even harmful to another. Therefore, the selection of antioxidants must be considered and reasonably selected according to the aging properties of various rubber materials, anti-aging requirements and the characteristics of various antioxidants.

②Combined use

When one anti-aging agent is difficult to meet the requirements, two or more anti-aging agents should be used together to make them have a coordinated effect and ensure the anti-aging effect.

③ Pollution

Some antioxidants have a coloring effect and contamination on the rubber. Generally speaking, phenolic antioxidants have poor protective effect, but do not contaminate or contaminate very little. The amine antioxidants with higher protective effect will contaminate the rubber and cause serious discoloration. These contradictions should be considered in the selection process.

④Dosage

The amount of antioxidant should not exceed the solubility in rubber to prevent frost spray and contaminate the surface quality of rubber.

⑤ Function

Amine antioxidants have adverse effects on rubber scorch; phenolic antioxidants can delay vulcanization and should be paid attention to when selecting them. As an important protective measure for high-temperature cables, the treatment of the rubber protective layer by antioxidants requires everyone to pay attention. Only with solid protection can the service life of high-temperature cables be further ensured and the erosion of various hazards can be resisted.

 2. Anti-aging agent products and types

At present, the domestic consumption is relatively large. Amine antioxidants account for a large proportion, accounting for about 55% of domestic antioxidants, of which p-phenylenediamine antioxidant 4020/6PPD accounts for about 87.5%, accounting for about 48% of all antioxidants, and quinoline antioxidants account for about 87.5%. 29% or so.

① Ketoamine antioxidants

Has a good antioxidant effect. There are: antioxidant RD, antioxidant AW, antioxidant BLE.

② Diaryl secondary amine antioxidants

This is one of the ancient varieties, and it still ranks first among all antioxidants, including: Antioxidant D (D), Antioxidant A (A), and Antioxidant DNP.

③p-phenylenediamine antioxidant

Including the most important class of antioxidants, but also a promising class of antioxidants. Representative companies include Shengao, Nanhua, and Sunsine. There are antioxidant 4010NA/IPPD, antioxidant 4020/6PPD, antioxidant 4010/CPPD, antioxidant ODA, antioxidant DPPD, antioxidant 7PPD, antioxidant 8PPD, antioxidant 3100/DTPD, antioxidant 445.

④ Phenolic antioxidants and other antioxidants

The protective effect is not as good as that of amine antioxidants, but it has outstanding non-polluting properties, including: antioxidant 2246, antioxidant BHT (264), antioxidant SP, and antioxidant BHA.

⑤Heterocyclic antioxidants (sulfur-containing type)

There are anti-aging agent MB, anti-aging agent MMB, anti-aging agent MBZ, anti-aging agent MMB, and the representative enterprise is Hebi Yuanhao New Materials Co., Ltd. Anti-aging agent MB is an important variety of non-polluting anti-aging agent. It is non-toxic and bitter in taste. It is not suitable for products in contact with food. It has a moderate protective effect on oxygen aging, post-aging and static aging. The efficacy of single use is low, and it produces synergistic effect when used in combination with antioxidant D, 4010NA or antioxidant RD. It is also a copper ion passivator, which has a delaying effect on the acid accelerator. When the dosage is more than 2 parts, it will spray frost, generally 1~1.5 parts. The performance of MBZ is similar to that of MB, but its influence on the vulcanization characteristics of the compound is smaller than that of MB, and it is not necessary to adjust the vulcanization system. Can also be used as an accelerator for neoprene.

Contact information:

Jason
Henan Xuannuo Chemical Co., Ltd
Email: info@hnxuannuo.com
Skype:0086-13526552024
Wechat:0086-13526552024
Whatsapp:0086-13526552024
TeL:+86-371-55255119