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A kind of cold-resistant insulating resin composition and preparation method thereof

A technology of insulating resin and composition, which is applied in the field of cold-resistant insulating resin composition and its preparation, which can solve the problems of cold resistance and poor mechanical properties, and achieve the effects of water vapor resistance, improved rebound performance, and excellent low-temperature performance

Inactive Publication Date: 2018-09-28
国网河南省电力公司社旗县供电公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned patented cable materials are still poor in cold resistance and mechanical properties

Method used

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  • A kind of cold-resistant insulating resin composition and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A cold-resistant insulating resin composition, made of the following raw materials in parts by weight:

[0027] German Lanxess EPT6850 EPDM rubber (53% ethylene mass fraction) 70 parts, low cis-butadiene rubber 10 parts, styrene-butadiene rubber 22 parts, wood fiber 5 parts, flame retardant 5 parts, filler 80 parts, anti-aging 3 parts of curing agent, 4 parts of vulcanizing agent, 1 part of crosslinking agent, 12 parts of softener and 4 parts of accelerator.

[0028] The flame retardant is antimony trioxide.

[0029] The filler is carbon black N550.

[0030] The anti-aging agent is MB and 4010NA, and the weight ratio of the two is 0.5:1.

[0031] Described vulcanizing agent is dicumyl peroxide.

[0032] The crosslinking agent is N-N m-phenylene bismaleimide.

[0033] Described softening agent is hydroxyl silicone oil.

[0034] Described accelerator is magnesium oxide and stearic acid, both weight ratios are 2:1.

[0035] The preparation method of above-mentioned c...

Embodiment 2

[0040] A cold-resistant insulating resin composition, made of the following raw materials in parts by weight:

[0041] 72 parts of German Lanxess EPT6650 EPDM rubber (53% by mass of ethylene), 12 parts of low cis-butadiene rubber, 24 parts of styrene-butadiene rubber, 6 parts of wood fiber, 6 parts of flame retardant, 85 parts of filler, anti-aging 4 parts of curing agent, 4.5 parts of vulcanizing agent, 1 part of crosslinking agent, 15 parts of softener and 5 parts of accelerator.

[0042] The flame retardant is molybdenum dioxide.

[0043] The filler is carbon black N220.

[0044] The anti-aging agent is MB and 4010NA, and the weight ratio of the two is 0.8:1.

[0045] Described vulcanizing agent is dicumyl peroxide.

[0046] The crosslinking agent is triallyl isocyanurate.

[0047] Described softening agent is naphthenic oil.

[0048] Described accelerator is magnesium oxide and stearic acid, both weight ratios are 3:1.

[0049] The preparation method of above-mentioned...

Embodiment 3

[0054] A cold-resistant insulating resin composition, made of the following raw materials in parts by weight:

[0055] 78 parts of German Lanxess EPT6850 EPDM rubber (53% by mass of ethylene), 15 parts of low cis-butadiene rubber, 25 parts of styrene-butadiene rubber, 8 parts of wood fiber, 6.5 parts of flame retardant, 90 parts of filler, anti-aging 5 parts of curing agent, 5 parts of vulcanizing agent, 1.1 parts of crosslinking agent, 18 parts of softener and 6 parts of accelerator.

[0056] The flame retardant is antimony trioxide and calcium carbonate, and the weight ratio of the two is 1:1.

[0057] The fillers are carbon black N550 and carbon black N330 with a weight ratio of 1:1.

[0058] The anti-aging agent is MB and 4010NA, and the weight ratio of the two is 1:1.

[0059] Described vulcanizing agent is dicumyl peroxide.

[0060] The crosslinking agent is N-N m-phenylene bismaleimide and triallyl isocyanate, and the weight ratio of the two is 1:1.

[0061] Describ...

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Abstract

The invention belongs to the technical field of high polymer material and specifically relates to a cold-resistant insulating resin composition and a preparation method thereof. The cold-resistant insulating resin composition is prepared from the following raw materials (by weight): 70-85 parts of EPDM rubber, 10-23 parts of BR, 22-34 parts of Styrene Butadiene Rubber, 5-15 parts of wood fiber, 5-8 parts of a fire retardant, 80-100 parts of a filler, 3-6 parts of an anti-aging agent, 4-8 parts of a vulcanizing agent, 1-2 parts of a cross-linking agent, 12-25 parts of a softener and 4-10 parts of an accelerant. Through cooperation of the various raw materials, the insulating resin composition has excellent tensile property, aging resistance, oil resistance, cold resistance and flame retardant property.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a cold-resistant insulating resin composition and a preparation method thereof. Background technique [0002] Polyvinyl chloride resin (PVC) is the most widely used insulating material on cables. The advantage of PVC insulating material is that it has high practical characteristics and is cheap. However, this insulating material is a halogen-containing material, which will release toxic and harmful gases when burned And the amount of smoke is large, it is easy to damage the environment and there are secondary hazards, such as poisonous and harmful gases at the scene of a fire, which can easily cause people to suffocate and die. At present, most of the production of halogen-free low-smoke flame-retardant cable materials is to add a large amount of magnesium hydroxide or magnesium hydroxide to the polyolefin substrate to achieve the flame-retardant effect. How...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/16C08L9/00C08L9/06C08L97/02C08L91/00C08L83/06C08K13/02C08K3/22C08K3/26C08K3/04C08K5/18C08K5/14C08K5/3492C08K5/09C08K5/3417
CPCC08K2201/014C08L23/16C08L2201/02C08L2205/02C08L2205/035C08L2205/16C08L9/00C08L9/06C08L97/02C08L91/00C08L83/06C08K13/02C08K3/2279C08K3/22C08K2003/2224C08K2003/265C08K3/04C08K5/18C08K5/14C08K5/3492C08K2003/222C08K5/09C08K5/3417
Inventor 薛宇石岩王伟张菲
Owner 国网河南省电力公司社旗县供电公司
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