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Modified ethylene-propylene diene copolymer cable material and preparation method thereof

A technology of EPDM rubber and cable material, which is applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of low oxygen index of EPDM rubber and limit popularization and application, and achieve excellent elongation at break, good Effect of volume resistivity and high mechanical strength

Inactive Publication Date: 2014-06-18
TONGLING CITY TONGDOU SPECIAL CABLE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low oxygen index of EPDM rubber itself (the oxygen index is only 17), its promotion and application in the field of mining cables are limited.

Method used

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  • Modified ethylene-propylene diene copolymer cable material and preparation method thereof

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Embodiment 1

[0017] Example 1: Modified EPDM rubber cable material, the parts by weight of the raw materials are:

[0018] Mixture A: EPDM rubber 100, anti-aging agent RD 2, zinc oxide 3, dioctyl ester 10, ethylene bisstearamide 5, 3-aminopropyl trimethoxysilane 2, triallyl isotri Polycyanate 3, Nano-montmorillonite 20, Nano-alumina 30, Nano-magnesia 20;

[0019] Mixture B: maleic anhydride grafted ethylene-ethyl acetate copolymer 60, methyl vinyl silicone rubber 25, modified nano powder 25, poly-4-methyl-1-pentene 0.4, polycaprolactone 8. N, N'-m-phenylene bismaleimide 2, vinyl tris(β-methoxyethoxy) silane 2, sodium dibutylnaphthalene sulfonate 2.5, acrylic emulsion 2 and zinc borate 12 .

[0020] The preparation method of modified EPDM rubber cable material comprises the following steps:

[0021] First, weigh all the raw materials of mixture A and B according to the weight of the raw materials; mix the raw materials of mixture A and B respectively at a temperature of 105-115°C for 4-...

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Abstract

The invention discloses a modified ethylene-propylene diene copolymer cable material and a preparation method thereof. The cable material is composed of a mixture A and a mixture B, wherein the mixture A comprises, by weight, 90-110 parts of ethylene-propylene diene copolymer, 1-3 parts of antiager RD, 2-4 parts of zinc oxide, 8-12 parts of dioctyl phthalate, 4-6 parts of ethylenebisoctadecanamide, 1-3 parts of 3-aminopropyltrimethoxysilane, 2-4 parts of triallyI isocyanurate, 18-22 parts of nano-montmorillonite, 28-32 parts of nano-aluminum oxide and 18-22 parts of nano-magnesium oxide; the mixture B comprises, by weight, 50-70 parts of maleic anhydride grafted ethylene-ethyl acetate copolymer, 20-30 parts of methyl vinyl silicon rubber, 20-30 parts of modified nano-powder, 0.3-05 part of poly(4-methyl-1-pentene), 5-10 parts of polycaprolactone, 1-3 parts of N, N'-m-phenylenedimaleimide, 1.5-2.5 parts of vinyl-tri-(beta-methoxyethoxy)- silicane, 2-3 parts of sodium dibutylnaphthalenesulfonate, 1-3 parts of acrylic emulsion and 10-15 parts of zinc borate. Compared with the conventional ethylene-propylene diene copolymer cable material, the modified ethylene-propylene diene copolymer cable material has the advantages of high oxygen index, high mechanical strength, excellent elongation at break and high volume resistivity.

Description

technical field [0001] The invention relates to the field of rubber material processing, in particular to a modified EPDM cable material and a preparation method thereof. Background technique [0002] EPDM rubber is widely used in the cable industry because of its excellent electrical properties, mechanical and physical properties and excellent processing properties. Due to the low oxygen index of EPDM rubber itself (the oxygen index is only 17), its promotion and application in the field of mining cables are limited. Therefore, improving the flame retardant oxygen index of EPDM rubber has practical significance for the application of EPDM rubber in the field of mining cables. Substituting nano-montmorillonite, nano-alumina, and nano-magnesia for calcium carbonate and clay in the formula of EPDM can fully improve the oxygen index of EPDM and solve the bottleneck of its application in the field of mining cables. Nano-montmorillonite is an excellent reinforcement and flame r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L51/00C08L83/07C08L23/20C08K13/06C08K9/04C08K3/26C08K3/22C08K5/20C08K5/544C08K5/3492C08K3/34C08K5/42C08K3/38H01B7/295
Inventor 赵家玉
Owner TONGLING CITY TONGDOU SPECIAL CABLE CO LTD
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