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Low-cost high-performance ethylene-propylene-diene monomer (EPDM) cable sheathing material for mines

A technology of EPDM rubber and cable sheath, which is applied in the direction of rubber insulators, plastic/resin/wax insulators, organic insulators, etc., to achieve the effects of reduced electrical properties, good physical and mechanical properties, and improved tear strength

Inactive Publication Date: 2015-11-25
ANHUI TIANCAI CABLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of China's economy, the contradiction of tight energy supply has become more and more prominent. In order to meet this demand, major coal mines have adopted high-power coal mining equipment to increase production capacity, and the supporting cables for power transmission Ethylene-propylene rubber insulation has high operational reliability and other advantages, such as high moisture resistance, almost no decline in electrical and mechanical properties after immersion in water, and good water resistance, electrical resistance and heat resistance. With the production of rubber With the development of technology, processing and other aspects, the amount of ethylene-propylene rubber in cable production is also increasing. The existing ethylene-propylene rubber materials are increasingly unable to meet the social needs of rapid development. How to prepare a temperature-resistant, tear-resistant Excellent performance, small compression deformation, low production cost, and good economic benefits for mining EPDM materials have become technical problems that need to be solved at present

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of low-cost high-performance mining EPDM cable sheath material, 42 parts of EPDM rubber, 40 parts of ethylene-butylene elastomer and 10 wt% chlorine based on EPDM rubber in parts by weight Plasticized polyethylene together for 2min; then add 30 parts of white carbon black, 40 parts of superfine talcum powder, 36 parts of modified calcined clay, 10 parts of nano silicon dioxide, 3.5 parts of zinc oxide, 3 parts of stearic acid, 21 parts Paraffin oil, 6 parts of paraffin wax, 1 part of accelerator MB and 1 part of accelerator RD are mixed uniformly and then discharged at a mixing temperature of 110°C; then 2.45wt% 2,5-Di Methyl-di(tert-butylperoxy)-3-hexane, 1.15wt% cross-linking coagent HVA-2 for vulcanization, the vulcanization temperature is 165°C, the vulcanization time is 1min, and the discharge is cooled to obtain low cost and high performance Mining EPDM cable sheath material.

Embodiment 2

[0017] A kind of low-cost high-performance mining EPDM cable sheath material, 50 parts of EPDM rubber, 33 parts of ethylene-butylene elastomer and 14wt% chlorine based on EPDM rubber in parts by weight Plasticized polyethylene together for 1min; then add 35 parts of white carbon black, 30 parts of superfine talcum powder, 38 parts of modified calcined clay, 12 parts of nano-silica, 4 parts of zinc oxide, 1 part of stearic acid, 23 parts Paraffin oil, 4 parts of paraffin, 1.2 parts of accelerator MB and 0.8 parts of accelerator RD are mixed evenly and discharged at a mixing temperature of 115°C; then 2.12wt% 2,5-Di Methyl-di(tert-butylperoxy)-3-hexane, 1.5wt% cross-linking coagent HVA-2 for vulcanization, the vulcanization temperature is 160°C, the vulcanization time is 2min, and the material is cooled to obtain low cost and high performance Mining EPDM cable sheath material.

Embodiment 3

[0019] A kind of low-cost high-performance mining EPDM cable sheath material, by weight, 47 parts of EPDM rubber, 32 parts of ethylene-butylene elastomer and 12 wt% chlorine based on EPDM rubber Plasticized polyethylene together for 1.5min, ethylene-butylene elastomer Mooney viscosity (ML121°C, 1+4) 13.35, ethylene content is 72.5wt%; then add 32 parts of white carbon black, 35 parts of superfine talcum powder, 38 parts of modified calcined clay, 10 parts of nano silicon dioxide, 3.5 parts of zinc oxide, 1.5 parts of stearic acid, 22 parts of paraffin oil, 5.5 parts of paraffin wax, 1.1 parts of accelerator MB and 0.8 parts of accelerator RD are mixed evenly and then discharged material, the mixing temperature is 112°C; then add 2.3wt% 2,5-dimethyl-di(t-butylperoxy)-3-hexane based on EPDM rubber, 1.2wt% crosslinking activity Auxiliary HVA-2 is vulcanized, the vulcanization temperature is 160-165°C, the vulcanization time is 1-2min, and the material is cooled to obtain low-cost...

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Abstract

The invention discloses a low-cost high-performance ethylene-propylene-diene monomer (EPDM) cable sheathing material for mines. The low-cost high-performance EPDM cable sheathing material for the mines is prepared through the steps: plastifying 40-50 parts (by weight) of EPDM, 30-40 parts (by weight) of ethylene-butylene elastomer and 10-14wt% (based on EPDM) of chlorinated polyethylene together for 1-2 minutes; then, adding 30-35 parts (by weight) of white carbon black, 30-40 parts (by weight) of ultrafine talcum powder, 35-40 parts (by weight) of modified calcined clay, 10-12 parts (by weight) of nano-silica, 3-4 parts (by weight) of zinc oxide, 1-3 parts (by weight) of stearic acid, 21-23 parts (by weight) of paraffin oil, 4-6 parts (by weight) of paraffin, 1-1.2 parts (by weight) of accelerant MB and 0.8-1 part (by weight) of accelerant RD into the plastified material, carrying out uniform milling, and then, carrying out material discharging; and then, adding 2-2.5wt% (based on EPDM) of 2,5-dimethyl-di (tert-butylperoxy)-3-hexane and 1-1.5wt% (based on EPDM) of crosslinking-activity assistant HVA-2 into the discharged material for vulcanization, discharging the vulcanized material, and cooling the vulcanized material.

Description

technical field [0001] The invention relates to the field of EPDM materials, in particular to a low-cost, high-performance mine-used EPDM cable sheath material. Background technique [0002] In recent years, with the rapid development of China's economy, the contradiction of tight energy supply has become more and more prominent. In order to meet this demand, major coal mines have adopted high-power coal mining equipment to increase production capacity, and the supporting cables for power transmission Ethylene-propylene rubber insulation has high operational reliability and other advantages, such as high moisture resistance, almost no decline in electrical and mechanical properties after immersion in water, and good water resistance, electrical resistance and heat resistance. With the production of rubber With the development of technology, processing and other aspects, the amount of ethylene-propylene rubber in cable production is also increasing. The existing ethylene-prop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/08C08L23/28C08K13/02C08K3/36C08K3/34C08K3/22C08K5/09C08K5/14H01B3/28H01B3/44
Inventor 林新国
Owner ANHUI TIANCAI CABLE GRP
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