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Protective jacket rubber without peculiar smell for marine cable

A technology for sheath rubber and marine cables, which is applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of high price, low price, and rubber odor, etc., achieve good vulcanization effect and reduce cost

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

[0004] Commonly used vulcanizing agents for CPE rubber are organic peroxides DCP and BIPB. Among them, DCP will produce odorous by-products after vulcanizing CPE, which will cause the rubber to have a peculiar smell; BIPB will not produce peculiar smell after vulcanizing CPE, but the price is higher, and Organic peroxide bis-25 (2,5-dimethyl-2,5-bis(tert-butylperoxy)-3-hexyne) is less expensive
Double 25 is often used as a vulcanizing agent for ethylene-propylene rubber. Chinese patent 200710036333.x discloses a preparation method for radiation-resistant low-smoke halogen-free flame-retardant ethylene-propylene rubber cable material, that is, using double 25 as a vulcanizing agent. Implementation with double 25 vulcanized CPE

Method used

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  • Protective jacket rubber without peculiar smell for marine cable
  • Protective jacket rubber without peculiar smell for marine cable
  • Protective jacket rubber without peculiar smell for marine cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The composition, proportioning number and model of the odor-free sheath rubber for marine cables of this embodiment are shown in Table 1:

[0045] Table I

[0046]

[0047]

[0048] In this example:

[0049] Properties of mixed film:

[0050] Mooney viscosity M(1+4) at 100°C is: 55.0Mv

[0051] The maximum torque MH at 170℃*15min on the rheometer is: 2.0N.m

[0052] The process scorch time t10 at 170℃*15min on the rheometer is: 1.20min

[0053] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 8.12min

[0054] Tensile strength: 15.5N / mm 2

[0055] Elongation: 550%

[0056] Specific gravity: 1.50g / cm 3

[0057] Oxygen Index: 35.0

[0058] After weighing according to Table 1, perform mastication, kneading, tableting, extrusion molding, and vulcanization to obtain finished products, and their properties are shown in Table 2:

[0059] Table II

[0060]

[0061]

Embodiment 2

[0063] The composition, proportioning number and model of the odor-free sheath rubber for marine cables of this embodiment are shown in Table 3:

[0064] Table three

[0065]

[0066] In this example:

[0067] Properties of mixed film:

[0068] Mooney viscosity M(1+4) at 100°C is: 58.0Mv

[0069] The maximum torque MH at 170℃*15min on the rheometer is: 2.5N.m

[0070] The process scorch time t10 at 170℃*15min on the rheometer is: 1.10min

[0071] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 7.80min

[0072] Tensile strength: 14.0N / mm 2

[0073] Elongation: 480%

[0074] Specific gravity: 1.55g / cm 3

[0075] Oxygen Index: 34.0

[0076] After weighing according to Table 3, carry out mastication, kneading, tableting, extrusion molding, and vulcanization to obtain finished products, and its properties are shown in Table 4:

[0077] Table four

[0078]

Embodiment 3

[0080] The composition, proportioning number and model of the no-odor sheath rubber for marine cables of the present embodiment are shown in Table 5:

[0081] Table five

[0082]

[0083]

[0084] In this example:

[0085] Properties of mixed film:

[0086] Mooney viscosity M(1+4) at 100°C is: 60Mv

[0087] The maximum torque MH at 170℃*15min on the rheometer is: 2.85N.m

[0088] The process scorch time t10 at 170℃*15min on the sulfur rheometer is: 0.95min

[0089] The process positive vulcanization time t90 at 170℃*15min on the rheometer is: 7.20min

[0090] Tensile strength: 12.5N / mm 2

[0091] Elongation: 430%

[0092] Specific gravity: 1.60g / cm 3

[0093] Oxygen Index: 33.0

[0094] After weighing according to Table 5, carry out mastication, kneading, tableting, extrusion molding, and vulcanization to obtain finished products, and its properties are shown in Table 6:

[0095] Table six

[0096]

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Abstract

The invention relates to a protective jacket rubber without peculiar smell for a marine cable. The protective jacket rubber comprises following components in parts by weight: 90-100 parts of chlorinated polyethylene, 10-15 parts of active agent, 1-3 parts of anti-aging agent, 2-6 parts of stabilizing agent, 20-25 parts of fire retardant, 5-20 parts of plasticizer, 20-30 parts of reinforcing agent, 10-70 parts of filling agent, 2-4 parts of lubricating agent, 2-4 parts of vulcanizing agent and 3-5 parts of vulcanizing adjuvant, wherein the gel content of the protective jacket rubber is 40-50%, and the gel content is (the weight of the chlorinated polyethylene (CPE)+the weight of chlorosulfonated polyethylene (CSM)) / the total weight*100%. According to the invention, 2,5-dimethyl-2,5-di (tert-butyl peroxide) hexane is used for realizing an aim that the CPE and CSM co-used protective jacket rubber does not have a peculiar smell, and the protective jacket rubber can meet the requirements of SH type relative indexes in the international standard Sheathing Materials for Shipboard Power and Telecommunication Cables IEC 60092-359.

Description

technical field [0001] The invention relates to a sheath rubber, in particular to an odor-free sheath rubber for marine cables. Background technique [0002] Chlorinated polyethylene (CPE) is a polymer material obtained from high-density polyethylene (HDPE) through a chlorination substitution reaction. It is a saturated polymer material with excellent weather resistance, ozone resistance, chemical resistance and aging resistance. , has good oil resistance, flame retardancy, coloring performance and toughness, has good compatibility with other polymer materials, and has a high decomposition temperature; in the rubber industry, CPE can be used as a high-performance, high-quality special rubber, It can also be blended with ethylene-propylene rubber (EPR), natural rubber (NR), nitrile rubber (NBR), chlorosulfonated polyethylene (CSM) and other rubbers; rubber-type CPE is a kind of comprehensive performance, heat-resistant Oxygen ozone aging, special synthetic rubber with good f...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08L23/34H01B3/44H01B7/17C08K13/02C08K5/14
Inventor 田维生
Owner FAR EAST CABLE
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