Nitrile Rubber Encyclopedia

The optimum amount of reclaimed rubber in nitrile sealing products

Create Date:2019-06-06 08:39:06Click volume:351
The optimum amount of reclaimed rubber in nitrile sealing products

Nitrile reclaimed rubber is the preferred raw material for the production of oil-resistant sealing rubber products instead of nitrile rubber. It can not only achieve excellent oil and sealing performance of nitrile sealing products, but also reduce production cost. However, compared with nitrile rubber, nitrile The performance of reclaimed rubber is still slightly insufficient; therefore, the manufacturer of nitrile sealing products often uses the method of using nitrile reclaimed rubber and nitrile rubber as the same, which can ensure the quality of the product and reduce the cost; then the nitrile reclaimed rubber is in the product. How much is the best added? How much production cost can you reduce?

The strength of the nitrile reclaimed rubber is lower than that of the original rubber. When the nitrile reclaimed rubber and the nitrile rubber are used to seal the product with nitrile, the tensile strength, hardness and tensile stress of the rubber will follow the nitrile reclaimed rubber. The amount of use is gradually decreased, and the elongation at break is increased; this is because the nitrile reclaimed rubber does not separate the softener in the waste nitrile rubber product during the production process, so this softener will also be produced. The function of softening and plasticizing is such that the elongation at break of the rubber is gradually increased.

The aging resistance of nitrile reclaimed rubber is higher than that of the original rubber. The use of nitrile reclaimed rubber instead of nitrile rubber to produce sealing products can improve the anti-aging performance of the product, but when the amount of nitrile reclaimed rubber is increased, the compression permanent deformation of the rubber compound It becomes larger, which affects the sealing performance and service life of the nitrile sealing products. Therefore, after several tests, when the original rubber is added in an amount of 100 parts, 60 parts of nitrile reclaimed rubber is used instead of the original rubber, so that the rubber material can be in physical index. The oil resistance performance is up to standard while improving the anti-aging performance of the sealing product, the compression permanent deformation reaches the minimum value, and the product sealing effect is the best.

The use of nitrile reclaimed rubber instead of nitrile rubber not only solves the problem that China's waste rubber is difficult to digest, but also alleviates the lack of resources for nitrile rubber in China and its dependence on foreign imports. The use of nitrile reclaimed rubber has saved a lot of money for the country. The social and economic benefits are improved; at the same time, the production method using the nitrile reclaimed rubber and the original rubber also reduces the production cost of the nitrile sealing product manufacturer. After comparison, the nitrile is produced by using all of the nitrile rubber. Compared with the sealed product, adding 60 parts of nitrile reclaimed rubber can save the company about 30% of production cost.

There are many manufacturers of nitrile reclaimed rubber on the market. The indexes of nitrile reclaimed rubber produced by different raw materials are also different. Manufacturers of nitrile sealing products should go to the regular manufacturers to select products with similar requirements for product indexes. It is best to take more samples. Secondary samples to achieve the best use and performance of the sealed product.