High flame retardant super low temperature resistant environmental flexible cable

Abstract

The invention relates to the technical field of novel material application, in particular to an environment-friendly flexible cable with high flame retardance and super low temperature resistance. The environment-friendly flexible cable with the high flame retardance and the super low temperature resistance comprises a flexible twisted conductor, an insulating layer and an outer protective layer, wherein the insulating layer is wrapped outside the flexible twisted conductor to form single insulated wires; the outer protective layer wraps at least two single insulated wires; the insulating layer and the outer protective layer are made from the same materials, take an ethylene-propylene-diene monomer as a disperse phase and take polypropylene as a continuous phase; the insulating layer contains a plasticizer which is cold-resistant, and also contains 30 to 40 parts of paraffin oil, 2 to 6 parts of cross linking agent and 50 to 70 parts of flame retardant; and the outer protective layer contains the plasticizer which is cold-resistant, and also contains 30 to 40 parts of paraffin oil, 2 to 6 parts of cross linking agent and 50 to 70 parts of flame retardant. Due to the adoption of the technical scheme, the environment-friendly flexible cable with the high flame retardance and the super low temperature resistance has high torsion resistance, the super low temperature resistance and flame retardance, is difficult to age and crack and environment-friendly, and can work stably in low temperature environments of below -60 DEG C.

Description

technical field

[0001] The invention relates to the technical field of new material application, in particular to a highly flame-retardant, ultra-low temperature resistant and environment-friendly soft cable. Background technique

[0002] With the development of my country's economy, communication technology, radio and television, railway transportation, petrochemical industry, construction and other fields have also made great progress. All kinds of wires and cables, communication cables, etc. are widely used in these fields and become one of the essential components.

[0003] However, facilities in alpine regions or under cold environmental conditions have put forward higher requirements for the flame retardancy, low temperature resistance, service life, quality and applicability of such products.

[0004] Cables used in places where people frequently move, such as buildings or rail transit, are required to have excellent flame retardancy, which can prevent fires, and be ...

Examples

Embodiment 1

[0036] A highly flame-retardant, ultra-low temperature resistant and environment-friendly soft cable, comprising a stranded soft conductor, an insulator and an outer sheath, the insulating layer covers the outside of the stranded soft conductor to form an insulated single wire, the outer sheath covers at least two insulated single wires, and the insulated The layer is made of the same material as the outer sheath, with EPDM as the dispersed phase and polypropylene as the continuous phase.

[0037] Among them, the insulating layer and the outer protective layer are composed of: EPDM 70 parts, polypropylene 30 parts, paraffin oil 30~40 parts, crosslinking agent 2~6 parts, crosslinking auxiliary agent 1~4, activator 1~ 4 parts, cold-resistant plasticizer 10-20 parts, flame retardant 50-70 parts, accelerator 1-4 parts, filler 5-20 parts.

[0038] Among them, the flame retardant is a non-halogen flame retardant.

[0039] Among them, the non-halogen flame retardant is 10 parts of a...

Embodiment 2

[0052] The high flame-retardant, ultra-low temperature resistant and environment-friendly flexible cable of the present invention has the same main content as that of the above-mentioned embodiment 1, and the difference lies in:

[0053] Through experiments, preferably, the basic composition of the insulating layer and the outer protective layer is: 70 parts of EPDM, 30 parts of polypropylene, 33-38 parts of paraffin oil, 3-5 parts of cross-linking agent, 1-3 parts of cross-linking auxiliary agent 1-3 parts of activator, 13-17 parts of cold-resistant plasticizer, 55-65 parts of flame retardant, 1-3 parts of accelerator, and 8-15 parts of filler.

[0054] The high-flame-retardant, super-low-temperature-resistant and environmentally-friendly flexible cable adopting the above-mentioned technical solution has strong torsion resistance, is not easy to age, and is super-low-temperature-resistant. It can work in a low-temperature environment below -60°C, is not easy to crack, and is f...

Embodiment 3

[0056] The high flame-retardant, ultra-low temperature resistant and environment-friendly flexible cable of the present invention has the same main content as that of the above-mentioned embodiment 1, and the difference lies in:

[0057] See Table 1 through experiments. Preferably, the basic composition of the insulating layer and the outer sheath is: 70 parts of EPDM, 30 parts of polypropylene, 35 parts of paraffin oil, 4 parts of cross-linking agent, 1 part of cross-linking auxiliary agent, activation 1 part of plasticizer, 15 parts of cold-resistant plasticizer, 60 parts of flame retardant, 1 part of accelerator, and 10 parts of filler.

technical field

[0001] The invention relates to the technical field of new material application, in particular to a highly flame-retardant, ultra-low temperature resistant and environment-friendly soft cable. Background technique

[0002] With the development of my country's economy, communication technology, radio and television, railway transportation, petrochemical industry, construction and other fields have also made great progress. All kinds of wires and cables, communication cables, etc. are widely used in these fields and become one of the essential components.

[0003] However, facilities in alpine regions or under cold environmental conditions have put forward higher requirements for the flame retardancy, low temperature resistance, service life, quality and applicability of such products.

[0004] Cables used in places where people frequently move, such as buildings or rail transit, are required to have excellent flame retardancy, which can prevent fires, and be ...

Examples

Embodiment 1

[0036] A highly flame-retardant, ultra-low temperature resistant and environment-friendly soft cable, comprising a stranded soft conductor, an insulator and an outer sheath, the insulating layer covers the outside of the stranded soft conductor to form an insulated single wire, the outer sheath covers at least two insulated single wires, and the insulated The layer is made of the same material as the outer sheath, with EPDM as the dispersed phase and polypropylene as the continuous phase.

[0037] Among them, the insulating layer and the outer protective layer are composed of: EPDM 70 parts, polypropylene 30 parts, paraffin oil 30~40 parts, crosslinking agent 2~6 parts, crosslinking auxiliary agent 1~4, activator 1~ 4 parts, cold-resistant plasticizer 10-20 parts, flame retardant 50-70 parts, accelerator 1-4 parts, filler 5-20 parts.

[0038] Among them, the flame retardant is a non-halogen flame retardant.

[0039] Among them, the non-halogen flame retardant is 10 parts of a...

Embodiment 2

[0052] The high flame-retardant, ultra-low temperature resistant and environment-friendly flexible cable of the present invention has the same main content as that of the above-mentioned embodiment 1, and the difference lies in:

[0053] Through experiments, preferably, the basic composition of the insulating layer and the outer protective layer is: 70 parts of EPDM, 30 parts of polypropylene, 33-38 parts of paraffin oil, 3-5 parts of cross-linking agent, 1-3 parts of cross-linking auxiliary agent 1-3 parts of activator, 13-17 parts of cold-resistant plasticizer, 55-65 parts of flame retardant, 1-3 parts of accelerator, and 8-15 parts of filler.

[0054] The high-flame-retardant, super-low-temperature-resistant and environmentally-friendly flexible cable adopting the above-mentioned technical solution has strong torsion resistance, is not easy to age, and is super-low-temperature-resistant. It can work in a low-temperature environment below -60°C, is not easy to crack, and is f...

Embodiment 3

[0056] The high flame-retardant, ultra-low temperature resistant and environment-friendly flexible cable of the present invention has the same main content as that of the above-mentioned embodiment 1, and the difference lies in:

[0057] See Table 1 through experiments. Preferably, the basic composition of the insulating layer and the outer sheath is: 70 parts of EPDM, 30 parts of polypropylene, 35 parts of paraffin oil, 4 parts of cross-linking agent, 1 part of cross-linking auxiliary agent, activation 1 part of plasticizer, 15 parts of cold-resistant plasticizer, 60 parts of flame retardant, 1 part of accelerator, and 10 parts of filler.

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