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Environment-friendly halogen-free rubber sheath for flame-retardant cable

A rubber sheath and flame-retardant cable technology, applied in the field of flame-retardant rubber, can solve the problems of oil resource depletion cost, secondary disaster, and large amount of combustion smoke, and achieve the effects of wide application prospects, cost reduction, and performance improvement

Active Publication Date: 2013-04-03
河北檀台科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Antimony trioxide and decabromodiphenyl ether have good flame retardant effects, but they generate a large amount of smoke and release toxic gases, which may easily cause secondary disasters; carbon black and carbon black have good reinforcing effects, but their raw materials come from petroleum. Petroleum resources are increasingly depleted and costly, so there is a need for a material that is environmentally friendly, flame-retardant, and has high reinforcement performance to replace them, reduce social costs, and promote productivity improvements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An environmentally friendly halogen-free flame-retardant cable rubber sheath, which consists of the following materials in parts by weight:

[0024] Chlorinated polyethylene 135B 100

[0025] Calcium Stearate 1.8

[0026] Paraffin 4

[0027] Chlorinated paraffins 56

[0028] Nano flame retardant reinforcing agent 120

[0029] Magnesium oxide 10

[0030] Silica 16

[0031] Dicumyl peroxide (DCP) 2.4

[0032] Silane coupling agent A-172 0.4

[0033] Carbon black N330 3

[0034] Triallyl isocyanurate 2

[0035] Total: 315.6

[0036] Glue content 31.6%

[0037] Tensile strength: 12.5

[0038] Elongation at break: 610%

[0039] Tear strength: 8.5KN / m

[0040] Oxygen index: 39%;

[0041] The preparation method of environmentally friendly halogen-free flame-retardant cable sheath rubber: Weigh the raw materials according to the proportion, put the above raw materials into the internal mixer for mixing, when mixing, first put in various powders, carbon black maste...

Embodiment 2

[0049] An environmentally friendly halogen-free flame-retardant cable rubber sheath, which consists of the following materials in parts by weight:

[0050] Chlorinated polyethylene 135B 100

[0051] Calcium Stearate 1.8

[0052] Paraffin 4

[0053] Chlorinated paraffin 60

[0054] Nano flame retardant reinforcing agent 100

[0055] Magnesium oxide 16

[0056] Silica 20

[0057] Dicumyl peroxide DCP 2.4

[0058]Coupling agent A-172 0.4

[0059] Carbon black N330 3

[0060] Triallyl isocyanurate TAIC 2

[0061] Total: 309.6

[0062] Glue content 32.2%

[0063] Tensile strength: 14.1MPa

[0064] Elongation at break: 600%

[0065] Tear strength: 8.7kN / m

[0066] Oxygen Index: 38%.

[0067] The preparation method of the environment-friendly halogen-free flame-retardant cable sheath adhesive is the same as that in Example 1;

[0068] The nano-flame retardant reinforcing agent is formed by mixing kaolin and brucite, the particle size is greater than 5000 mesh, the weig...

Embodiment 3

[0070] An environmentally friendly halogen-free flame-retardant cable rubber sheath, which consists of the following materials in parts by weight:

[0071] Chlorinated polyethylene 135B 100

[0072] Calcium Stearate 1.8

[0073] Paraffin 4

[0074] Chlorinated paraffin 60

[0075] Nano flame retardant reinforcing agent 110

[0076] Magnesium oxide 16

[0077] Silica 20

[0078] Dicumyl peroxide DCP 2.4

[0079] Coupling agent A-172 0.4

[0080] Carbon black N330 3

[0081] Triallyl isocyanurate TAIC 2

[0082] Total: 319.6

[0083] Glue content 31.3%

[0084] Tensile strength: 12.1MPa

[0085] Elongation at break: 605%

[0086] Tear strength: 8.5kN / m

[0087] Oxygen Index: 37%.

[0088] The preparation method of the environment-friendly halogen-free flame-retardant cable sheath adhesive is the same as that in Example 1;

[0089] The nano-flame retardant reinforcing agent is formed by mixing kaolin and brucite, the particle size is greater than 5000 mesh, the wei...

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Abstract

The invention discloses an environment-friendly halogen-free rubber sheath for a flame-retardant cable, belonging to the technical field of flame-retardant rubber. The environment-friendly halogen-free rubber sheath for the flame-retardant cable comprises a rubber base body and nanometer flame-retardant reinforcing agent, wherein the nanometer flame-retardant reinforcing agent is formed by mixing kaolin and brucite, wherein the particle size of the nanometer flame-retardant reinforcing agent is bigger than 5000 meshes; and the weight ratio of the kaolin to the brucite is 1:(0.5-1.5). The conventional rubber method for preparing the environment-friendly halogen-free rubber sheath for flame-retardant cable comprises the following steps: weighing the materials in proportion, adding the material to an internal mixer for mixing; and cooling, drying, folding and batching off the mixed materials. The cable rubber sheath provided by the invention is free of harmful flame-retardant substances, and adopts the nanometer flame-retardant reinforcing agent which is formed by mixing the kaolin and the brucite, so that the tensile strength of the mineral flame-retardant cable sheath and tear strength of the pants-shaped sample are increased, and the elasticity, the elongation and the oxygen index are greatly improved.

Description

technical field [0001] The invention relates to the technical field of flame-retardant rubber. Background technique [0002] The formula of the traditional flame-retardant cable sheath is complicated, ranging from a dozen or more ingredients to more than 20 ingredients, and each raw material has a single function. There are many kinds of ingredients and the batching process is also complicated. When encountering problems, it takes a long time to check all kinds of materials one by one, and there are many problems with the mutual reaction of various ingredients, which brings a lot of trouble to the sheath production. [0003] The flame retardants commonly used in traditional mining flame-retardant cables are flame retardants such as antimony trioxide and decabromodiphenyl ether, and white carbon black and carbon black are used as reinforcing agents. Antimony trioxide and decabromodiphenyl ether have better flame retardant effects, but they generate a lot of smoke and release...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08K13/02C08K3/34C08K3/22H01B7/295
Inventor 刘江波
Owner 河北檀台科技有限公司