Sheath rubber for rubber sheath flexible cables

A sheath rubber and flexible cable technology, which is applied in the field of sheath rubber for rubber sheathed flexible cables, can solve problems such as a single rubber type, and achieve the effect of good vulcanization effect.

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

[0006] The purpose of the present invention is to solve the shortage of a single type of rubber, to provide a rubber sheath flexible cable sheath rubber

Method used

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  • Sheath rubber for rubber sheath flexible cables
  • Sheath rubber for rubber sheath flexible cables
  • Sheath rubber for rubber sheath flexible cables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The composition, proportion and model of the sheath rubber for the rubber sheathed flexible cable of the present embodiment are shown in Table 1:

[0029] Table I

[0030]

[0031]

[0032] In this example:

[0033] The performance of the mixed film:

[0034] Mooney viscosity M(1+4) at 100℃: 56.0Mv

[0035] The highest torque MH at 170℃*15min on the sulfur change meter is: 3.50N.m

[0036] The process scorch time t10 of 170℃*15min on the sulfur change meter is: 0.91min

[0037] The positive curing time t90 of the process at 170℃*15min on the sulfur change meter is: 7.9min

[0038] Tensile strength: 10.5N / mm 2

[0039] Elongation: 420%

[0040] Specific gravity: 1.58g / cm 3

[0041] After weighing according to Table 1, carry out plasticizing, kneading, sheeting, extrusion molding and vulcanization to obtain the finished product, and its properties are shown in Table 2:

[0042] Table II

[0043]

Embodiment 2

[0045] The composition, proportion and model of the sheath rubber for the rubber sheathed flexible cable of the present embodiment are shown in Table 3:

[0046] Table 3

[0047]

[0048]

[0049] In this example:

[0050] The performance of the mixed film:

[0051] Mooney viscosity M(1+4) at 100℃: 51.0Mv

[0052] The highest torque MH at 170℃*15min on the sulfur change meter is: 3.2N.m

[0053] The process scorch time t10 at 170℃*15min on the sulfur change meter is: 0.95min

[0054] The positive curing time t90 of the process at 170℃*15min on the sulfur change meter is: 8.30min

[0055] Tensile strength: 9.8N / mm 2

[0056] Elongation: 490%

[0057] Specific gravity: 1.61g / cm 3

[0058] After weighing according to Table 3, carry out plasticizing, kneading, sheeting, extrusion molding, and vulcanization to obtain the finished product, and its properties are shown in Table 4:

[0059] Table 4

[0060]

Embodiment 3

[0062] The composition, proportion and model of the sheath rubber for the rubber sheathed flexible cable of the present embodiment are shown in Table 5:

[0063] Table 5

[0064]

[0065]

[0066] In this example:

[0067] The performance of the mixed film:

[0068] Mooney viscosity M(1+4) at 100℃: 47Mv

[0069] The highest torque MH at 170℃*15min on the sulfur change meter is: 3.0N.m

[0070] The process scorch time t10 at 170℃*15min on the sulfur change meter is: 0.88min

[0071] The positive curing time t90 of the process at 170℃*15min on the sulfur change meter is: 7.60min

[0072] Tensile strength: 11.5N / mm 2

[0073] Elongation: 390%

[0074] Specific gravity: 1.52g / cm 3

[0075] After weighing according to Table 5, carry out plasticizing, kneading, sheeting, extrusion molding, and vulcanization to obtain the finished product, and its properties are shown in Table 6:

[0076] Table 6

[0077]

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Abstract

The invention relates to a sheath rubber for rubber sheath flexible cables, which is prepared from the following components in parts by mass: 30-70 parts of natural rubber, 10-30 parts of styrene-butadiene rubber, 5-10 parts of activating agent, 0.5-2 parts of anti-aging agent, 2-45 parts of plasticizer, 30-60 parts of reinforcing agent, 80-180 parts of filler, 2-8 parts of lubricating assistant and 1.5-6.5 parts of composite vulcanizing agent. The gel content in the sheath rubber is 30-40%, wherein the gel content is (weight of natural rubber+weight of styrene-butadiene rubber+weight of chlorinated polyethylene) / total weight*100%. The invention adopts a natural rubber / styrene-butadiene rubber / chlorinated polyethylene three-element sharing method to improve the properties of the sheath rubber for rubber sheath flexible cables, thereby achieving the goal of property complementation and satisfying the property requirements for SE3 rubber in national standard.

Description

technical field [0001] The invention relates to a sheath rubber, in particular to a sheath rubber for a rubber sheathed flexible cable. Background technique [0002] Natural rubber has high elasticity at room temperature, a little plasticity, very good mechanical strength, low hysteresis loss, low heat generation during multiple deformations, and good flex resistance; because it is a non-polar rubber, it is electrically insulating. Good performance; and because of the unsaturated double bond, natural rubber is a substance with strong chemical reaction ability, light, heat, ozone, radiation, flexural deformation and copper, manganese and other metals can promote the aging of rubber, do not Aging resistance is the Achilles heel of natural rubber, and its oil and solvent resistance is poor. [0003] SBR is a general-purpose synthetic rubber with the largest output. It is a light yellow-brown elastic solid. Its density increases with the increase of styrene content. It has poor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/06C08L23/28H01B3/28H01B3/44H01B7/17C08K13/02
Inventor 田维生
Owner FAR EAST CABLE
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