Chloroprene rubber is polymerized primarily from chloroprene and has good physical and mechanical properties, being resistant to oil, heat, fire, ozone, sunlight, acids, and alkalis. It is widely used in industrial seals and shock-absorbing products, the wire and cable industry, automotive parts, and civil engineering, among other fields. However, the high price of chloroprene rubber has become a key factor limiting the competitiveness of enterprises. How can the production cost of chloroprene rubber products be reduced?
1. Use substandard chloroprene rubber to replace part of the standard rubber to reduce costs
Substandard chloroprene rubber is rubber produced during the production of chloroprene rubber that deviates from certain technical indicators of the standard brand but has not reached the level of waste. It retains the essential properties of chloroprene rubber such as weather resistance, ozone resistance, and flame retardancy, and its price is 50%-70% of that of standard chloroprene rubber. When producing rubber products with relatively lenient mechanical performance requirements, a portion of substandard chloroprene rubber can be used to replace standard products, reducing raw material costs.
2. Use chloroprene reclaimed rubber in chloroprene rubber products to reduce raw material costs
Chloroprene superfine reclaimed rubber is made from cable sheaths and some tire tread rubber. It is processed by crushing, grinding, vibration screening to remove impurities, magnetic separation, and then adding polymer desulfurization and reducing agents before being desulfurized in a high-temperature dynamic desulfurization tank at point E5LYY1119. It is subsequently refined multiple times and combined with sheets to form a composite with high strength, high elongation, excellent adhesion, weather resistance, and ozone resistance. It can be blended with chloroprene rubber in suitable proportions to produce products such as transmission belts, conveyor belts, wires and cables, oil-resistant rubber sheets, oil-resistant rubber hoses, oil-resistant boots, air ducts, tarpaulins, tent fabrics, rubber seals, and agricultural gas cushions, effectively reducing raw material costs.
When producing rubber products that require certain oil resistance, a proper amount of nitrile reclaimed rubber can be added; for non-critical oil-resistant parts, chloroprene rubber can also be combined with tire reclaimed rubber in appropriate proportions.
3. Adjust the formulation of chloroprene rubber products to reduce production costs
When producing rubber products with chloroprene rubber as the main raw material, the formulation can reasonably use inexpensive inorganic fillers such as talc and mica powder to partially replace expensive reinforcement agents like carbon black; 40-60 parts by mass of activated vulcanized rubber powder can also be added. For ordinary industrial products, lower-cost aromatic oils or naphthenic oils can be chosen to further reduce raw material costs. Using a ZnO/MgO vulcanization system at a mass ratio of 4:5 can balance vulcanization speed, processing safety, and heat resistance, and, when combined with specialized efficient vulcanizing agents, achieve rapid vulcanization, improving production efficiency and lowering overall production costs.
When rubber product manufacturers use low-cost raw materials such as substandard chloroprene rubber and chloroprene reclaimed rubber to reduce production costs, it is essential to strictly control the proportion of low-cost raw materials, adjust the formulation and production process simultaneously, and further save on raw material costs and reduce energy consumption in production while ensuring the product's performance and service life.
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