The wires and cables commonly used in the fields of life and construction are generally made of EPDM rubber or EPDM reclaimed rubber. The nitrile reclaimed rubber with excellent oil resistance is poor in electrical insulation and cannot be used as a raw material for the production of wire and cable. However, except for one type of cable product, there is a wire and cable sheath that has oil resistance requirements. What are the characteristics of the production of wire and cable jackets using nitrile reclaimed rubber?
1. Performance characteristics of nitrile reclaimed rubber wire and cable sheath. Production of nitrile rubber reclaimed rubber mainly uses nitrile reclaimed rubber for good oil resistance and solvent resistance. It is used for cable sheathing that has oil resistance requirements for rubber raw materials. For example, a cable jacket for electric submersible pumps. When nitrile reclaimed rubber is used to produce cable sheaths, the acrylonitrile content is different, and the performance of nitrile reclaimed rubber cable is also different: Acrylonitrile reclaimed rubber cables with low acrylonitrile content (acrylonitrile content below 24%) are resistant to low temperatures The performance is good; the cable produced from acrylonitrile content of 25%-30% nitrile reclaimed rubber has good physical and mechanical properties at low temperature, good oil resistance, solvent resistance, good abrasion resistance and excellent thermal stability Oxygen resistance and ozone resistance; high acrylonitrile content of nitrile reclaimed cable cable has excellent oil resistance, excellent solvent resistance, abrasion resistance, and ozone resistance.
2. The way of production of wire and cable sheath by nitrile reclaimed rubber
The use of nitrile reclaimed rubber for the production of oil-resistant wire and cable sheaths is mostly used with polyvinyl chloride. The hose produced has good flame retardant properties. The nitrile reclaimed rubber with medium and high acrylonitrile content is used together with PVC to produce cable sheaths used in textile equipment. , Combined with hard nitrile reclaimed rubber to produce long-term high-hardness, high-oil-resistant cable sheathing working in oil media.
3, on the nitrile reclaimed rubber cable sheath formula
Nitrile reclaimed rubber, like nitrile rubber, has hard nitrile reclaimed rubber and soft nitrile reclaimed rubber. In addition, powdered nitrile rubber can be used as soft nitrile rubber/reclaimed rubber, and can be used for cable sheathing. In production, the processing technology of powdered nitrile rubber when producing wire and cable sheaths is simpler. When nitrile reclaimed rubber is used to produce cable sheaths, it is best to select a low-sulfur, high-strength system for the vulcanization system to significantly increase the heat and aging resistance of the rubber cable sheath; if the flame retardancy is required, it is necessary to add an appropriate amount of the formula in the formula. Flame Retardant; If nitrile regenerated rubber cable sheathing requires particularly high oil resistance, oil-resistant plasticizers must be used.
In addition to nitrile rubber/reclaimed rubber as the main raw material for the production of cable jackets, liquid nitrile rubber can also be used as an oil-resistant plasticizer for PVC cable materials, which is more cost-effective.
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