Problems to Be Paid Attention to in the Use of Rubber Antioxidant

Because each kind of antioxidant protective effect has the limitation, but the rubber product in the actual use of aging is affected by many factors, so the choice of antioxidant should pay attention to the following points

1.Due to the different characteristics of each antioxidant, and the aging properties of different formulations of different formulations. Thus, the most effective antioxidant for a particular rubber may be ineffective or even detrimental to another. Therefore, the selection of anti-aging agents must be based on a variety of aging properties of the rubber, anti-aging requirements and the characteristics of a variety of antioxidants to take into account, a reasonable choice.

2.When an anti-aging agent is difficult to meet the requirements, two or more antioxidants should be used in combination, to produce a coordinating role to ensure that anti-aging effect.

3. Some anti-aging agent on the rubber coloring and pollution. In general, phenolic antioxidant protection is poor, but not pollution or pollution is very small. While the protective role of the higher amine antioxidant, will make the rubber pollution, discoloration serious. These contradictions in the selection should be considered.

4. Antioxidant dosage should not exceed the solubility in rubber to prevent spray frost, pollution, rubber surface quality.

5. Amine antioxidant on the rubber scorch have adverse effects; phenolic antioxidant can delay the curing, in the selection should be noted.