Application skills of rubber antioxidant IPPD in synthetic rubber

In the synthetic rubber industry, the rubber antioxidant IPPD (N-Isopropyl-N'-phenyl-p-phenylenediamine) is a popular additive. Its main function is to prevent oxidative aging of rubber materials, thereby extending their service life. This article will discuss in detail the chemical characteristics, mechanism of action, application advantages of IPPD, and specific operational suggestions in actual production.

Chemical properties and mechanism of action of IPPD

IPPD is an amine antioxidant with strong antioxidant and anti-aging properties. Its chemical structure contains active groups that easily react with oxygen, which enables it to effectively capture free radicals and prevent oxidative degradation of rubber materials. In addition, IPPD can also form a protective film in the rubber microstructure to further enhance its antioxidant properties.

Application advantages

Compared with other antioxidants, the application advantages of IPPD are mainly reflected in the following aspects:

• High efficiency: IPPD has significant antioxidant effect and can greatly extend the service life of rubber products.
• Stability: IPPD remains stable under high temperature and light conditions and is not easy to decompose.
• Economy: Due to its excellent performance, IPPD is used less in practical applications and the cost is relatively lower.

Operational suggestions in actual production

Although IPPD has a variety of excellent properties, in practical applications, you still need to pay attention to the following operating recommendations:

1. Reasonable addition amount: The addition amount of IPPD should be determined according to the rubber formula and specific use environment. In general, it is most effective to control the addition amount between 0.5% and 2%.

2. Timing of addition: During the mixing process, IPPD should be added after the rubber material is sufficiently uniform to avoid uneven distribution of antioxidants.

3. Storage conditions: IPPD should be stored in a dry, cool environment to prevent moisture and direct sunlight to avoid changes in its chemical properties.

Application cases

A rubber manufacturing company uses IPPD as the main antioxidant when producing automobile tires. By optimizing formulas and controlling processing conditions, the company not only effectively improved the anti-aging properties of rubber products, but also significantly extended the service life of the products. More importantly, the product's market recognition and competitiveness have also been significantly improved.

Summary: The application of rubber antioxidant IPPD in synthetic rubber not only effectively improves the performance and service life of the product, but also brings considerable economic benefits to the enterprise. Through scientific and reasonable operating methods and experience summarization, the industry can further optimize the use effect of IPPD and maintain the sustainable and healthy development of the industry.