There are many types of rubber sealing strip products, including rubber O-ring, gasket, rubber sealing strip, rubber sheath gasket, leather cup, leather ring, diaphragm, rubber sheath, oil seal, etc. The recycled rubber materials used for rubber sealing products in different applications are different. Natural latex reclaimed rubber can be used in the production of rubber sealing products using natural rubber as the main raw material, or in combination with styrene-butadiene rubber, cis-1,4-polybutadiene rubber, isoprene rubber, etc. Today, I will share with you the tips for mixing latex reclaimed rubber with rubber sealing strips and brake cups.
1. Techniques for producing rubber sealing strips with latex recycled adhesive
Most rubber sealing strips are used for sealing doors and windows of various vehicles, aircraft, and buildings. They require good weather resistance, aging resistance, ozone resistance, and cold resistance, as well as certain strength elongation 2SLY327 performance, and small compression deformation. Natural rubber can be used together with styrene-butadiene rubber and neoprene rubber, or with polyethylene to produce rubber sealing strips. Some rubber sealing strips can also be processed using natural rubber/ethylene-propylene rubber.
To improve the aging resistance of rubber sealing strips containing latex reclaimed rubber, antioxidant and antioxidant can be added together; In order to ensure the appearance quality and structural dimension stability of rubber sealing strips, supportive additives can be added to the formula to ensure good stiffness and small deformation of the finished rubber strips, such as ointment, polymer wax modified plastics, etc. When using latex reclaimed rubber to produce sponge rubber sealing strips, it is necessary to fully consider the balance among the pore forming speed and vulcanization speed of the product to maintain a stable density and uniform porosity of the product.
2. Techniques for producing brake cups with latex reclaimed rubber
Rubber brake cups are mainly used for pressure transmission and sealing in brake mechanisms. It is required that the rubber must have good strength and elongation properties, good resistance to brake fluid, compression deformation, and especially excellent elasticity and low temperature resistance. The brake cup used for alcohol type brake fluid can be made of natural rubber or a combination of natural rubber, styrene-butadiene rubber, and cis-1,4-polybutadiene rubber. Its rubber compound has good elasticity and low-temperature performance.
When natural rubber, styrene-butadiene rubber, cis-1,4-polybutadiene rubber, or neoprene rubber are used in the production of brake cups in a suitable proportion together with latex reclaimed rubber, a sulfur accelerator system is often used, along with accelerator M/D/DM, etc; Properly increasing the amount of zinc oxide can increase the thermal conductivity of the adhesive and reduce the heat generation; Use high wear-resistant carbon black, semi reinforced carbon black, and when necessary, it can be used together with spray carbon black, air mixed carbon black, etc; Use an appropriate amount of anti-aging agent to increase the anti-aging performance of rubber, such as anti-aging agent A, anti-aging agent D, etc. It is recommended to use non polluting anti-aging agent for light colored latex reclaimed rubber seals.
When using latex reclaimed rubber to reduce the production cost of rubber sealing strips and rubber cups, rubber product manufacturers must fully consider their use occasions and physical property index requirements, select appropriate rubber and reclaimed rubber products, and reasonably determine the amount of latex reclaimed rubber. The following editor will continue to share with you the key points of the production process for producing various types of rubber sealing products using latex reclaimed rubber.
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