Shock-absorbing rubber is mainly used to prevent vibration and shock, transmit or buffer the strength of vibration and impact, and require the rubber to have good elasticity, damping, fatigue resistance, etc., and is widely used in rubber air springs, various anti-seismic and shock-absorbing gaskets and other products. Appropriate amount of rubber powder in shock-absorbing rubber products can reduce the cost of raw materials on the premise of ensuring the performance of the finished product.
1. Application of rubber powder in rubber gas springs
Rubber gas spring is mainly used in the air chamber made of rubber material, by filling compressed air to achieve the function of elastic support and cushioning, widely used in the industrial field, the rubber part mainly retains the outer layer of glue, the inner layer of rubber and the cord glue, and the performance requirements of different rubber layers are different.
The outer layer of rubber gas spring adhesive requires good aging resistance, flexural resistance, good adhesion with the cord, and high constant tensile stress. The inner layer of rubber requires the rubber to have aging resistance, low air permeability and good adhesion E5LYY329 with the cord, mainly natural rubber; Cord adhesive requires good flexibility, heat resistance, and high adhesion among the cloth layers, and is also processed from natural rubber as the main raw material.
When each rubber spring layer is mixed with rubber powder to reduce costs, it is recommended to control the amount of rubber powder below 20 parts (the total amount of rubber is 100 mass parts), and choose fine rubber powder with small particle size and better dispersion in the rubber matrix. Use plasticizers in moderation to improve the processing performance of the rubber material and promote the uniform dispersion of rubber powder.
2. Application of rubber powder in rubber fenders
Rubber fender is a kind of buffer device used on docks and ships to mitigate the impact of ships and docks or ships when berthing or mooring, so as to protect ships and docks; The basic requirements of rubber fender compound are large energy absorption, low reaction force, small surface pressure on the hull, and at the same time require the rubber to have good wear resistance, seawater resistance, oil resistance and other properties, mostly made of natural rubber, styrene-butadiene rubber, etc.
A large amount of activated rubber powder is mixed in the rubber fender compound with styrene-butadiene rubber as the main raw material, which can reduce the production cost under the premise of ensuring the physical and mechanical properties of the compound. Activated rubber powder is chemically treated rubber powder, which has enhanced surface activity and good adhesion with the rubber matrix, which can improve the transition layer among the rubber powder and the matrix glue. The use of activated rubber powder in rubber fender compound has better comprehensive performance of the finished product.
3. Styrene-butadiene rubber production rubber fenders are mixed with a large amount of activated rubber powder formula
100 parts of styrene-butadiene rubber, 50 parts of activated rubber powder, 3.6 parts of zinc oxide, 2.2 parts of stearic acid, 1 part of anti-aging agent 4010NA, 1 part of anti-aging agent 124 0.7 parts, 1 part of paraffin, 50 parts of high wear resistant carbon black, 9 parts of aromatic oil, 1.8 parts of sulfur, 1 part of accelerator CBS, 0.4 parts of accelerator D; Total 220.7 copies.
Rubber powder is processed from waste rubber products, the price is much lower than natural rubber and synthetic rubber, and the appropriate use of rubber powder in shock-absorbing rubber can effectively reduce the cost of raw materials and improve the market competitiveness of products. The rubber powder is evenly dispersed in the matrix rubber, which can enhance the overall structural stability of the rubber, increase the friction and internal friction among the rubber molecular chains, and improve the wear resistance, tear resistance and shock absorption effect of shock-absorbing rubber products.
Exclusive original article [commercial authorization] reprint, excerpt and excerpt in any form are prohibited without written authorization. Focus on Hongyun rubber: learn the process formula and raw material technology of producing rubber products from recycled rubber to help you reduce costs and increase profits