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Moisture-proof PVC insulating sheath

An insulating sheath, muscovite technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problems of moisture, dull and rough surface of wires, affecting production speed, etc., to achieve good softness and smooth product surface. delicate effect

Inactive Publication Date: 2018-01-19
ZHEJIANG WELLSCOM PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the cable industry usually uses PVC insulating sheaths as insulation protection, and PVC insulating sheaths use PVC injection molding as raw materials. However, due to the shortcomings of PVC resin, PVC cable materials are easily affected by moisture, so damp cable materials are used to make The surface of the wire is dull and rough, and there are many honeycomb pores on the surface and cross section of the wire, which greatly reduces the mechanical properties and insulation properties of the wire.
Before using the damp cable material, it needs to be dried, which adds a process, which not only affects the production speed, but also wastes manpower and energy
Conventional PVC insulating materials are usually filled with ordinary calcium carbonate. The surface of insulating cable particles made of ordinary calcium carbonate looks uneven and has pinhole-like gaps under a microscope. These gaps are very easy to absorb water vapor, which leads to moisture.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A moisture-proof PVC insulating sheath, which is made of moisture-proof PVC injection molding;

[0025] Moisture-proof PVC injection molding is prepared from the following raw materials in parts by weight: 80 parts of PVC resin, 20 parts of PE resin, 120 parts of inorganic filler, 25 parts of composite rubber, 2 parts of fluidity modifier, 10 parts of plasticizer, and 5 parts of lubricant Parts, 6 parts of heat stabilizer; Composite rubber comprises the following components by weight percentage, nitrile rubber 35wt%, EPDM rubber 10wt%, silicone rubber 10wt%, neoprene 45wt%; Plasticizer is made of p-phenylene Dioctyl dicarboxylate and dioctyl phthalate in a weight ratio of 1:0.5; the lubricant is stearic acid; the fluidity modifier is composed of talcum powder, graphite and EMI resin in a weight ratio of 1:1:0.5 Composition; the film forming agent is composed of oxidized polyvinyl alcohol and polyethylene wax in a weight ratio of 1:0.6;

[0026] The inorganic filler whe...

Embodiment 2

[0029] A moisture-proof PVC insulating sheath, which is made of moisture-proof PVC injection molding;

[0030] Moisture-proof PVC injection molding is prepared from the following raw materials in parts by weight: 82 parts of PVC resin, 25 parts of PE resin, 125 parts of inorganic filler, 27 parts of composite rubber, 2.2 parts of fluidity modifier, 10.5 parts of plasticizer, and 5.5 parts of lubricant Parts, heat stabilizer 6.5 parts; Composite rubber comprises the following components by weight percentage, nitrile rubber 37wt%, EPDM rubber 12wt%, silicone rubber 12wt%, neoprene 39wt%; Plasticizer is made of p-phenylene Dioctyl dicarboxylate and dioctyl phthalate in a weight ratio of 1:0.6; the lubricant is stearic acid; the fluidity modifier is composed of talcum powder, graphite and EMI resin in a weight ratio of 1:1:0.6 Composition; the film forming agent is composed of oxidized polyvinyl alcohol and polyethylene wax in a weight ratio of 1:0.65;

[0031] The inorganic fill...

Embodiment 3

[0034] A moisture-proof PVC insulating sheath, which is made of moisture-proof PVC injection molding;

[0035] Moisture-proof PVC injection molding is prepared from the following raw materials in parts by weight: 85 parts of PVC resin, 30 parts of PE resin, 130 parts of inorganic filler, 27.5 parts of composite rubber, 2.5 parts of fluidity modifier, 11 parts of plasticizer, and 6 parts of lubricant Parts, 7 parts of heat stabilizer; Composite rubber contains the following components in weight percentage, nitrile rubber 37.5wt%, EPDM rubber 15wt%, silicone rubber 12.5wt%, neoprene 35wt%; plasticizer is made of Dioctyl terephthalate and dioctyl phthalate in a weight ratio of 1:0.65; the lubricant is stearic acid; the fluidity modifier is composed of talcum powder, graphite and EMI resin in a weight ratio of 1:1 : 0.65 composition; the film-forming agent is composed of oxidized polyvinyl alcohol and polyethylene wax in a weight ratio of 1:0.7;

[0036] The inorganic filler wher...

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PUM

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Abstract

The invention belongs to the technical field of cable insulating sheaths. The invention discloses a moisture-proof PVC insulating sheath which is made by injection molding of a moisture-proof PVC injection molding material. The moisture-proof PVC injection molding material is made from the following raw materials in parts by weight: 80-90 parts of PVC resin, 20-40 parts of PE resin, 120-140 partsof an inorganic filler, 25-30 parts of composite rubber, 2-3 parts of a fluidity modifier, 10-12 parts of a plasticizer, 5-7 parts of a lubricant and 6-8 parts of a thermal stabilizer. The moisture-proof PVC insulating sheath in the invention has the characteristics of moisture resistance and moisture-proofness, as well as smooth and delicate product surface and better softness, and the like.

Description

technical field [0001] The invention relates to the technical field of cable insulation sheaths, in particular to a moisture-proof PVC insulation sheath. Background technique [0002] In the prior art, the cable industry usually uses PVC insulating sheaths as insulation protection, and PVC insulating sheaths use PVC injection molding as raw materials. However, due to the shortcomings of PVC resin, PVC cable materials are easily affected by moisture, so damp cable materials are used to make The surface of the wire produced is dull and rough, and there are many honeycomb pores on the surface and cross-section of the wire, which greatly reduces the mechanical properties and insulation properties of the wire. Before using the damp cable material, it needs to be dried, which adds a process, which not only affects the production speed, but also wastes manpower and energy. Conventional PVC insulating materials are usually filled with ordinary calcium carbonate. The surface of insu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/06C08L9/02C08L23/16C08L83/04C08L11/00C08K13/06C08K9/04C08K3/34C08K5/12C08K5/09H01B3/44
Inventor 李晓东余立峰赵亚琼
Owner ZHEJIANG WELLSCOM PLASTIC CO LTD
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