Rubber insulating glue for mine cables
A rubber insulation and cable technology, which is applied in the field of cable insulation glue, can solve the problems affecting the commercial development of EPDM mining cable rubber insulation glue, the cost increase of EPDM as mining cable rubber insulation glue, and the restriction of the use of EPDM mine cable rubber insulation glue and other issues, to achieve good chemical stability, improve processing safety, improve flame retardancy and oil resistance
Inactive Publication Date: 2012-04-18
ANHUI LAND GRP
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Problems solved by technology
The cable insulation rubber can meet the use standards, but its base rubber is all made of EPDM rubber, which leads to an increase in its cost and affects its commercialization
[0009] As the price of EPDM continues to rise, the cost of using EPDM as mining cable rubber insulation has risen, which has seriously affected the commercial development of EPDM mine cable rubber insulation, and greatly limited the use of EPDM as mine cable rubber insulation. It is very important to study a mine cable rubber insulating glue that can meet the requirements of mine cables and has a low cost.
Method used
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Embodiment
[0034] According to the conventional method in this field, the CPE base rubber is first kneaded on a small open mill, and after molding, the EPDM base rubber is added for mixing and masticating. After being fully mixed, all auxiliary materials except the vulcanizing agent and vulcanization aid are added for mixing. Refining, adding vulcanizing agent and vulcanizing aids after molding, kneading, uniform, cooling to obtain insulating rubber, and then insulating extrusion according to conventional methods to obtain mining cable rubber insulating rubber.
[0035] Shown below is the specific formula of each embodiment.
Embodiment 1
[0037]
[0038]
[0039] Wherein, the mass ratio of EPDM rubber to chlorinated polyethylene is 3:1.
Embodiment 2
[0041]
[0042] Wherein, the mass ratio of EPDM rubber to chlorinated polyethylene is 3:1.
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Abstract
The invention relates to rubber insulating glue for mine cables. Raw materials for the glue comprise, by weight, 24 to 84 of ethylene-propylene terpolymer rubber, 8 to 28 of chlorinated polyethylene, 2 to 4 of a vulcanizing agent, 1 to 6 of a vulcanization aid, 5 to 40 of a strengthening agent, 1 to 8 of an anti-aging agent, 80 to 120 of a filling agent, 5 to 35 of a plasticizer, 0.5 to 3 of a coloring agent, 4 to 12 of a stabilizing agent and 1 to 3 of an active agent, wherein, the mass ratio of ethylene-propylene terpolymer rubber to chlorinated polyethylene is 3:1. According to the invention, chlorinated polyethylene is employed to substitute a part of ethylene-propylene terpolymer rubber, a formula for the raw materials is properly adjusted, and therefore, the prepared rubber insulating glue for mine cables shows the advantage of reduced utilization cost under the prerequisite that the glue meets utilization requirements for mine cables.
Description
technical field [0001] The invention relates to a cable insulating glue, in particular to a mining cable rubber insulating glue. Background technique [0002] Mining cables refer to wire and cable products for ground equipment and underground equipment used in the coal mining industry. These include cables for coal mining machines, conveyors, communications, lighting and signaling equipment, as well as cables for electric drills, cap lamp wires and power cables for underground mobile substations. The best working performance and safety performance of cables are closely related to mining conditions, which require materials with good dielectric properties, heat resistance, chemical properties and mechanical properties. Mining cables are mainly composed of two parts: rubber insulating glue and rubber sheath glue. [0003] Ethylene-propylene-diene rubber (EPDM) is a kind of rubber with good comprehensive properties. There is no unsaturated bond in its molecular main chain, so ...
Claims
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IPC IPC(8): C08L23/16C08L23/28C08K13/02C08K5/14C08K3/26C08K3/34C08K5/12C08K5/11H01B3/44
Inventor 张祖经高昌林刘芹
Owner ANHUI LAND GRP
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