The penetration of oil will cause the rubber to swell, destroy the network structure of the vulcanizate, and cause the mechanical properties of the rubber to decline. Therefore, oil-resistant rubber should be used for rubber sheets that work in oil media for a long time, and nitrile rubber is a general-purpose oil-resistant rubber. When using nitrile rubber as the main raw material to produce oil-resistant rubber sheets, the rational use of reclaimed rubber can not only ensure the oil resistance of the product, but also effectively reduce the cost of raw materials.
1. Recycled nitrile rubber reduces the production cost of nitrile oil-resistant rubber sheet
In the latest general specification for recycled rubber, recycled nitrile rubber is defined as follows: recycled rubber made from various waste vulcanized rubber products with butadiene and acrylonitrile rubber as the main body. The nitrile reclaimed rubber on the market is generally processed from waste nitrile gloves as the main raw material, or a small amount of sub-brand nitrile, nitrile water glue, etc. is added in the production process. It has a large oil resistance coefficient, high strength, and good elasticity. Nitrile rubber has good compatibility, and can directly replace all nitrile rubber or be used together with nitrile rubber to produce oil-resistant rubber sheets, effectively reducing the cost of raw materials.
2. Recycled tread rubber reduces the production cost of nitrile oil-resistant rubber sheet
Compared with ordinary tire reclaimed rubber, it has higher effective rubber hydrocarbon content and greater mechanical strength, and can be mixed into nitrile rubber oil-resistant rubber sheet. In actual production, since the tread reclaimed rubber 2ELYY47 itself does not have good oil resistance, it is necessary to reasonably control the amount of reclaimed rubber. Generally, 100 parts of nitrile rubber can be mixed with 20-50 parts of tread reclaimed rubber. High cost oil resistant plywood.
Tread reclaimed rubber can also be used with nitrile rubber and nitrile reclaimed rubber to produce oil-resistant rubber sheets.
3. Recycled rubber for rubber shoes reduces the production cost of nitrile oil-resistant rubber sheets
In the latest general specification for recycled rubber, the definition of recycled rubber for rubber shoes is as follows: recycled rubber made from the rubber part of waste rubber shoes and cloth shoes. Rubber shoe reclaimed rubber can be mixed in a small amount in high-quality oil-resistant rubber sheets, or in large quantities in the production of ordinary oil-resistant rubber sheets, with a dosage ranging from 20 to 200 parts. In actual production, nitrile rubber oil-resistant rubber sheet, nitrile rubber/nitrile reclaimed rubber oil-resistant rubber sheet, nitrile rubber/tread reclaimed rubber oil-resistant rubber sheet can be mixed with rubber shoe reclaimed rubber.
4. The combination of nitrile rubber and reclaimed rubber can produce low-cost formula of oil-resistant rubber sheet
Nitrile rubber/nitrile reclaimed rubber/rubber shoe reclaimed rubber combined to produce oil-resistant rubber sheet formula: nitrile rubber 100 parts, nitrile reclaimed rubber 50 parts, rubber shoe reclaimed rubber 200 parts, zinc oxide 7 parts, stearic acid 3 parts, anti-aging 3 parts of agent RD, 2 parts of paraffin wax, 40 parts of carbon black N330, 40 parts of clay, 120 parts of light calcium, 140 parts of heavy calcium, 12 parts of dibutyl phthalate, 8 parts of pine tar, 4 parts of industrial grease, promoting 2.4 parts of DM, 0.6 parts of accelerator TMTD, 2 parts of sulfur; total: 734 parts.
Nitrile rubber/tread reclaimed rubber combined to produce oil-resistant rubber sheet formula: 100 parts of nitrile rubber, 50 parts of tread reclaimed rubber, 5 parts of zinc oxide, 1 part of anti-aging agent D, 100 parts of carbon black N774, 35 parts of clay, o 35 parts of dibutyl phthalate, 0.4 parts of accelerator D, 1.1 parts of accelerator M, 2.5 parts of sulfur; total: 330 parts.
As the mainstream raw material for reducing costs in the rubber product industry, reclaimed rubber is reasonably mixed into the production of nitrile oil-resistant rubber sheets, which can not only ensure product quality, but also effectively reduce the cost of raw materials; The main points of the production process of the combination of reclaimed rubber and the production of low-cost oil-resistant rubber sheets.
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