What reasons affect the lifespan of silicone gasket?

In daily life, it’s believed that many people have heard of product aging, but in the rubber and plastic products industry, silicone products compared with other rubber products in terms of service life has more significant performance, although the performance is significant, but it can not avoid the destruction of time and environment, as well as a wide range of reusing.

In recent years, the aging degree of the service life of silicone rubber gasket has gradually attracted the attention of the majority of consumers. Many people understand that once there are signs of aging of the silicone gasket, its service life will be greatly reduced, and if it is not replaced in time, it will have a great impact and harm to the machine. At the same time, in the mechanical production and processing industry, it is also very troublesome to disassemble and replace gaskets. Therefore, how to improve the service life of silicone rubber gasket materials has become a concern of many relevant personnel in the industry.

As for how to improve the service life of silicone rubber gasket, we should first understand what factors directly or indirectly affect its service life in the process of use, so as to avoid extending the service life of the gasket as much as possible.

 

Environmental impact:

The silicone rubber products used in our daily production process will cause local aging of parts due to stress problems. The influence of stress is mostly due to deformation of silicone rubber parts caused by long-term overstocking and wear or damage in the process of stress. In the mechanical industry, a silicone rubber accessory may be used for decades, such as the O-ring used in the silicone oil press. Because of long-term stress and friction, it belongs to the nature of oil seal. Because of the environmental impact of use, the performance will gradually disappear after a period of use, and the life will be reduced.

 

Temperature effect:

Compared with other material, silicone products in high and low temperature resistance has very good effect, but the environment of high temperature for a long time to use still will produce very big effect on the silicone gasket, to join the hardness of silicone rubber raw materials on the low side, back glue material of low melting point, so in the process of temperature rise, back glue is close to the temperature effect, refer to the plastic flow to get bigger, This leads to the demoulding dissolution of the gum, but the silicone rubber is different from the gum in material, their key problem is the reduction of the strength of the silicone rubber material caused by thermal oxidation and high temperature decomposition.

 

Effect of oily liquid:

If only used in the water for a long time, under the long-term stationary state of silicone rubber products will not have a special effect, its service life can be as much as five to ten years, but in the situation of oily liquid, silica gel can't like rubber has a very good oil resistant effect, at the same time under the motion state, the density of water density is lower than silicone, silicone rubber gasket stress when in the water or oily liquid, Silicon chains can be weakened by water or oily liquids and are not recommended for use in moving liquids.

 

Impact of materials and finished goods:

Superiority and inferiority of some raw materials is the most important factor of influence, because of different silicone rubber products factory in the production process used in the formulation of raw materials is different, and the characteristics of raw materials is also have certain differences, so different material of silicone rubber gaskets used in the same environment the same place in the life also can appear a lot of differences. Therefore, special attention should be paid to material selection, performance and detection.

 

The quality of finished products is very important. In the production and processing of products, the control of time and temperature has a great influence on the softness and brittle hardness of silica gel products, and the difference in hardness of finished products will directly lead to the consumption of service life of product accessories under the influence of stress and other reasons.

 

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