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Low temperature resistant EPDM (ethylene-propylene-diene monomer) cable material and preparation method thereof

An EPDM100, low temperature resistance technology, applied in the field of EPDM cable material, can solve the problems of performance decline and low temperature resistance, and achieve the effect of reducing embrittlement temperature, improving low temperature resistance and improving low temperature resistance.

Active Publication Date: 2015-08-26
王鸳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the embrittlement temperature of the sheath is minus 40°C, and its performance drops significantly in an environment lower than this temperature, and the low temperature resistance is not good enough

Method used

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  • Low temperature resistant EPDM (ethylene-propylene-diene monomer) cable material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Low temperature resistant EPDM cable material, its composition in parts by weight is: 100 parts of EPDM, 9 parts of ECO rubber, 4.5 parts of MMA, 0.5 parts of peroxyketal, 11 parts of EVA, 4 parts of EPDM-g-MAH, 3.5 parts of DTDM, 1.8 parts of TAIC parts, 84 parts of talcum powder, 0.1 parts of KH5500, and 1.5 parts of antioxidant MB.

[0025] The steps of its preparation method are as follows:

[0026] (1) Add EPDM, MAH, and DCP to a high-speed kneader and mix for 10 minutes, then transfer to a twin-screw extruder for melt extrusion. The temperature is 170°C, the extruded pellets are dried and dissolved in xylene, refluxed at 60°C for 2 hours, cooled and filtered, the filter cake is washed with ethanol for 3 times and then dried in a vacuum oven at 90°C for 3 hours , get compatibilizer;

[0027] (2) According to the formula, add the compatibilizer obtained in step (1) and other components except DTDM and TAIC into the internal mixer at 100°C for 12 minutes to obtain ...

Embodiment 2

[0029] Low temperature resistant EPDM cable material, its composition in parts by weight is: 100 parts of EPDM, 12 parts of ECO rubber, 4.2 parts of MMA, 0.3 parts of peroxyketal, 12 parts of EVA, 3 parts of EPDM-g-MAH, 4 parts of DTDM, 2.5 parts of TAIC parts, calcined kaolin 85 parts, KH5500.1 parts, antioxidant MB 1.8 parts.

[0030] Its preparation method is the same as Example 1.

Embodiment 3

[0032] Low temperature resistant EPDM cable material, its composition in parts by weight is: 100 parts of EPDM, 11 parts of ECO rubber, 4.8 parts of MMA, 0.3 parts of peroxyketal, 9.5 parts of EVA, 7 parts of EPDM-g-MAH, 2.5 parts of DTDM, 2 parts of TAIC parts, calcined kaolin 75 parts, KH5500.2 parts, antioxidant MB 1.4 parts.

[0033] Its preparation method is the same as Example 1.

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Abstract

The present invention provides a low temperature resistant EPDM (ethylene-propylene-diene monomer) cable material comprising the following components by weight: 100 parts of EPDM, 9-14 parts of ECO rubber, 4-5 parts of MMA, 0.3-0.5 parts of a crosslinking agent, 8-12 parts of EVA, 3-8 parts of a compatilizer, 2.5-4.5 parts of a vulcanizing agent, 1.5-3 parts of a co-vulcanizing agent, 70-90 parts of a packing, 0.1-0.2 part of a coupling agent and 1-2 parts of an antiager. The present invention also provides a preparation method of the cable material. The low temperature resistant EPDM (ethylene-propylene-diene monomer) cable material has good low temperature resistance.

Description

Technical field: [0001] The invention relates to an EPDM cable material, in particular to a low-temperature resistant EPDM cable material and a preparation method thereof. Background technique: [0002] EPDM is the abbreviation of Ethylene-Propylene-Diene Monomer, translated into Chinese as EPDM, which is a terpolymer of ethylene, propylene and non-conjugated dienes. Dienes have a special structure. During the copolymer reaction, only one active double bond participates in the reaction, while the remaining double bond with less activity remains on the copolymer molecular chain as an unsaturation point for supply. vulcanized use. The main chain of EPDM is saturated, which makes it resistant to heat, sunlight and ozone. EPDM is non-polar in nature, resistant to polar solutions and chemicals, has low water absorption, and has good insulating properties, so it can be used as a cable material. [0003] For example, the Chinese patent application with the publication number CN1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L23/08C08L71/03C08L51/04C08L33/12C08F255/06C08F222/06C08F120/14C08K13/02C08K3/34C08K5/14C08K5/544H01B3/28
CPCC08F120/14C08F255/06C08L23/16C08L2203/202C08L2205/035H01B3/28C08F222/06C08L23/0853C08L71/03C08L51/04C08L33/12C08K13/02C08K3/34C08K5/14C08K5/544C08K3/346
Inventor 邬月良
Owner 王鸳
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