Natural rubber has high strength, good elasticity and low permanent deformation. It is widely used in the production of various rubber sealing products, such as O-rings, gaskets, etc., with good sealing effect and long service life. In actual production, poor aging resistance is the shortcoming of natural rubber, so not all sealing products can use natural rubber. When using natural rubber to produce sealing products, rubber product manufacturers also need to master certain skills to produce sealing products with better performance, longer life, and higher cost performance.
1. The characteristics and application scope of natural rubber sealing products
Rubber sealing products processed from natural rubber as the main raw material have high mechanical strength, good resilience, high wear resistance, tear resistance and other properties. They generally work at a temperature of -50°C-80°C and are widely used in production. Brake cups and aprons for automobile brake systems, or used with other types of rubber to produce sealing strips, gaskets, high vacuum sealing rings, etc. In the actual application process, natural rubber sealing products cannot work in mineral oil and hot air.
2. Selection of rubber raw materials for natural rubber sealing products
When using natural rubber to produce sealing products, there are different levels of requirements for the mechanical strength, compression deformation resistance, media resistance, wear resistance, aging resistance, heat resistance, and flex resistance of the rubber material used. Rubber product manufacturers need to determine whether natural rubber can be used according to actual needs. In actual production, common raw materials are selected for processing and production, such as sulfur, accelerator DM, carbon black, paraffin, solid coumarone, antioxidant RD/MB, etc.
3. Production method of natural rubber sealing products
In the production process of rubber sealing products using natural rubber as raw material, natural rubber can be used alone, or an appropriate amount of styrene butadiene rubber, butadiene rubber, and neoprene can be added to the natural rubber sealing product formula to improve the vulcanization of natural rubber sealing products Performance, aging resistance, etc. Or use appropriate amounts of latex reclaimed rubber, tire reclaimed rubber, isoprene reclaimed rubber, etc. in the formulation of natural rubber sealing products to reduce costs while improving the processing performance of natural rubber sealing products.
Reasonable selection of rubber raw materials for natural rubber sealing products and reasonable design of the production formula of sealing products can further improve the aging resistance, low temperature elasticity, and flex resistance of rubber products; when using reclaimed rubber to reduce the raw material cost of rubber sealing products, rubber product manufacturers need to adjust The formula reduces more raw material costs while keeping the physical properties unchanged. Later editors have the opportunity to continue discussing with you the production process and finished performance of rubber sealing products.
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