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Thermoplastic elastomer composition for crane cable sheath

A thermoplastic elastomer and cable protection technology, applied in the direction of insulated cables, plastic/resin/wax insulators, cables, etc., can solve problems such as elusiveness, and achieve the effect of simplifying the process and reducing costs

Inactive Publication Date: 2014-01-29
SHANGHAI QIFAN CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cables for cranes require cables to have certain tensile strength, flexibility, fatigue resistance, and weather resistance. In conventional crane cables, neoprene rubber or chlorinated polyethylene rubber is often used as the cable sheath. Rubber is used in crane cables. The process must have its advantages, but there are also shortcomings. Neoprene or chlorinated polyethylene rubber must use a large internal mixer in the rubber mixing process, and a continuous high-temperature steam vulcanization line must be used in the extrusion process. And the production scale puts forward strict requirements, and it is beyond the reach of ordinary cable manufacturers who do not have this production capacity.

Method used

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  • Thermoplastic elastomer composition for crane cable sheath

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Embodiment Construction

[0033] A thermoplastic elastomer composition for a crane cable sheath, which comprises the following parts by weight:

[0034] PVC resin: 30~35,

[0035] Light calcium carbonate 1250 mesh: 8-10,

[0036] TOTM: 28~30,

[0037] DOS: 2~3,

[0038] Epoxidized soybean oil 1~1.5,

[0039] Environment-friendly calcium zinc stabilizer 2~2.5,

[0040] Low molecular weight polyethylene wax, molecular weight 2500-4000, 0.2-0.5;

[0041] Among them, the PVC resin is a mixture of PVC2500 type and PVC1300 type with a weight ratio of 4:1.

[0042] The thermoplastic elastomer composition for crane cable sheathing, preferably, it comprises the following parts by weight:

[0043] PVC resin: 32~34,

[0044] Light calcium carbonate 1250 mesh: 9~10,

[0045] TOTM: 29.5~30,

[0046] DOS: 2.5~3,

[0047] Epoxidized soybean oil 1~1.5,

[0048] Environment-friendly calcium zinc stabilizer 2~2.5,

[0049] Low molecular weight polyethylene wax, molecular weight 2500-4000, 0.2-0.5;

[00...

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Abstract

The invention relates to a crane cable, particularly a composition for a crane cable sheath. The thermoplastic elastomer for a crane cable sheath comprises the following components in parts by weight: 30-35 parts of PVC (polyvinyl chloride) resin, 8-10 parts of light calcium carbonate, 28-30 parts of TOTM (trioctyl trimellitate), 2-3 parts of DOS (dioctyl sebacate), 1-1.5 parts of epoxy soybean oil, 2-2.5 parts of environment-friendly calcium zinc stabilizer and 0.2-0.5 part of low-molecular polyethylene wax. The components are subjected to extrusion molding to obtain the cable sheath. The composition saves the cost, simplifies the technique, enhances the production efficiency, and satisfies the operational requirements of the customers.

Description

technical field [0001] The present invention relates to a crane cable, in particular to a composition for a crane cable sheath. Background technique [0002] Cables for cranes require cables to have certain tensile strength, flexibility, fatigue resistance, and weather resistance. Neoprene rubber or chlorinated polyethylene rubber is often used as the sheath of cables in conventional crane cables. Rubber is used in crane cables. The process must have its advantages, but there are also shortcomings. Neoprene or chlorinated polyethylene rubber must use a large internal mixer in the rubber mixing process, and a continuous high-temperature steam vulcanization line must be used in the extrusion process. Strict requirements are put forward for the production scale and production capacity, and it is beyond the reach of ordinary cable manufacturers who do not have such production capacity. Contents of the invention [0003] The present invention aims to solve the above defects, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08K13/02C08K3/26C08K5/12C08K5/11C08K5/1515H01B3/44H01B7/17
Inventor 孙学鹏高俊威高文起
Owner SHANGHAI QIFAN CABLE CO LTD
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