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Protective jacket rubber for marine cable

A technology for sheathing rubber and marine cables, applied in the field of sheathing rubber, can solve problems such as limited use range and large permanent deformation, and achieve the effects of improving large permanent deformation, improving elasticity, and good resistance to chemical medium corrosion

Inactive Publication Date: 2013-04-24
FAR EAST CABLE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its large permanent deformation, its scope of use is also limited.

Method used

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  • Protective jacket rubber for marine cable
  • Protective jacket rubber for marine cable
  • Protective jacket rubber for marine cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The composition of the marine cable sheath rubber of the present embodiment, proportioning number and model are shown in Table 1:

[0029] Table I

[0030]

[0031]

[0032] In this example:

[0033] Properties of mixed film:

[0034] Mooney viscosity M(1+4) at 100°C is: 36.0Mv

[0035] The maximum torque MH at 170℃*15min on the rheometer is: 2.60N.m

[0036] The process scorch time t10 at 170℃*15min on the rheometer is: 1.10min

[0037] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 8.40min

[0038] Tensile strength: 15.5N / mm 2

[0039] Elongation: 350%

[0040] Oxygen Index: 33.5

[0041] Specific gravity: 1.51g / cm 3

[0042] After weighing according to Table 1, perform mastication, kneading, tableting, extrusion molding, and steam vulcanization to obtain the finished product, and its properties are shown in Table 2:

[0043] Table II

[0044]

Embodiment 2

[0046] The composition of the marine cable sheath rubber of the present embodiment, proportioning number and model are shown in Table 3:

[0047] Table three

[0048]

[0049] In this example:

[0050] Properties of mixed film:

[0051] Mooney viscosity M(1+4) at 100°C is: 39.0Mv

[0052] The maximum torque MH at 170℃*15min on the rheometer is: 3.00N.m

[0053] The process scorch time t10 at 170℃*15min on the rheometer is: 1.01min

[0054] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 8.04min

[0055] Tensile strength: 14.1N / mm 2

[0056] Elongation: 340%

[0057] Oxygen Index: 34.0

[0058] Specific gravity: 1.54g / cm 3

[0059] After weighing according to Table 3, carry out mastication, kneading, tableting, extrusion molding, and steam vulcanization to obtain the finished product, and its properties are shown in Table 4:

[0060] Table four

[0061]

Embodiment 3

[0063] The composition of the marine cable sheath rubber of the present embodiment, proportioning number and model are shown in Table five:

[0064] Table five

[0065]

[0066]

[0067] In this example:

[0068] Properties of mixed film:

[0069] Mooney viscosity M(1+4) at 100°C is: 44.0Mv

[0070] The maximum torque MH at 170℃*15min on the rheometer is: 3.40N.m

[0071] The process scorch time t10 at 170℃*15min on the sulfur rheometer is: 1.62min

[0072] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 12.2min

[0073] Tensile strength: 12.5N / mm 2

[0074] Elongation: 370%

[0075] Oxygen Index: 35.0

[0076] Specific gravity: 1.60g / cm 3

[0077] After weighing according to Table 5, carry out mastication, kneading, tableting, extrusion molding, and steam vulcanization to obtain the finished product, and its properties are shown in Table 6:

[0078] Table six

[0079]

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Abstract

The invention relates to a protective jacket rubber for a marine cable. The protective jacket rubber comprises the following components in parts by weight: 90-100 parts of chlorosulfonated polyethylene, 5-15 parts of active agent, 1-3 parts of anti-aging agent, 15-20 parts of fire retardant, 10-20 parts of plasticizer, 25-45 parts of reinforcing agent, 5-55 parts of filling agent and 1-3 parts of vulcanizing agent, wherein the gel content of the protective jacket rubber is 40-50%, and the gel content is (the weight of the chlorosulfonated polyethylene + the weight of natural rubber) / the total weight*100%. According to the invention, the chlorosulfonated polyethylene and the natural rubber are used simultaneously to carry out the property complementation, and the protective jacket rubber can meet the requirements of SH type relative indexes in an international standard Sheathing Materials for Shipboard Power and Telecommunication Cables IEC 60092-359.

Description

technical field [0001] The invention relates to a sheath rubber for cables, in particular to a sheath rubber for marine cables. Background technique [0002] At present, natural rubber and styrene-butadiene rubber are mostly used for cable sheath rubber. This kind of cable sheath rubber has good elasticity, but its weather resistance is poor, and it is easy to crack during actual use. [0003] Chlorosulfonated polyethylene (CSM) is a chlorine-containing special elastomer material with a highly saturated chemical structure obtained from the main raw material of polyethylene through chlorination and chlorosulfonation reactions. It is a special rubber variety with high performance and quality. Its appearance is white or milky white elastic material, thermoplastic. Due to the chlorosulfonyl active group in the molecular structure, it exhibits high activity, especially in chemical medium corrosion resistance, ozone oxidation resistance, oil erosion resistance, flame retardancy, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/34C08L7/00C08K13/02C08K5/39C08K3/04C08K3/34C08K3/26C08K5/40
Inventor 田维生
Owner FAR EAST CABLE
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