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Water-resistant and flame-retardant sheath layer for cables and its manufacturing process

A flame-retardant sheath and cable technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of unqualified thermal deformation, rising costs, and difficulty in meeting the requirements of product index performance.

Active Publication Date: 2016-08-10
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to find the existing technology from the literature, but generally using high-quality plasticizers, reducing or not using fillers, the product index performance is still difficult to meet the requirements, and it is easy to cause thermal deformation and other indicators to fail, and the cost rises and other problems

Method used

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  • Water-resistant and flame-retardant sheath layer for cables and its manufacturing process
  • Water-resistant and flame-retardant sheath layer for cables and its manufacturing process
  • Water-resistant and flame-retardant sheath layer for cables and its manufacturing process

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Embodiment 1

[0041] Embodiment 1: A water-resistant and flame-retardant sheath layer used on a cable, the cable includes a cable core 1 and a water-resistant and flame-resistant sheath layer 2 coated on the outer surface of the cable core 1, the water-resistant and flame-retardant sheath Layer 2 consists of the following components by weight, as shown in Table 1:

[0042] Table 1

[0043]

[0044] All the above are parts by weight.

[0045] The above-mentioned silane coupling agent is vinyl tris(β-methoxyethoxy) silane, vinyl trimethoxy silane or γ-glycidyl etheroxypropyl trimethoxy silane.

[0046] The above-mentioned silane coupling agent is vinyl tris (β-methoxyethoxy) silane, vinyl trimethoxy silane and γ-glycidyl etheroxypropyl trimethoxy silane mixed in a ratio of 10:5:3 by weight .

[0047] Above-mentioned lubricant embodiment 1 is polyethylene wax, lubricant embodiment 2 is stearic acid, lubricant embodiment 3 is the compound of polyethylene wax and stearic acid.

[0048] Th...

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Abstract

The invention discloses a waterproof flame-retardant protective jacket layer used for a cable and a manufacturing process of the protective jacket layer. The waterproof flame-retardant PVC (Polyvinyl Chloride) cable material consists of the following components in parts by weight: 100 parts of polyvinyl chloride, 20-30 parts of trioctyl trimellitate, 15-25 parts of phthalate, 5-10 parts of an environment-friendly calcium-zinc composite stabilizer, 5-10 parts of a composite rear-earth stabilizer, 4-8 parts of antimonous oxide, 0.3-1 part of a lubricant, 0.1-0.5 part of an antioxidant, 3.5-7 parts of nano-barium sulfate, 2.6-5.2 parts of calcined kaolin, 3.5-7 parts of nanosilicon dioxide and 0.18-0.36 part of silane coupling agent, wherein the silane coupling agent is vinyl tri(beta-methoxyl ethyoxyl) silane, ethenyl trimethoxy silane or beta- glycidyl ether oxypropyl trimethoxy silane. According to the invention, water absorption of the cable protective jacket layer is greatly lowered, the products are applied in a moist or water-soaking environment, so that electrical performance stability is further improved almost without generating changes, and therefore, compactness of products is improved, and material micropores are removed.

Description

technical field [0001] The invention relates to a flame-retardant sheath layer and a preparation process thereof, in particular to a water-resistant flame-retardant sheath layer for cables and a manufacturing process thereof. Background technique [0002] PVC cable insulation material is one of the general-purpose synthetic plastics, and it is the second largest plastic species in the world after polyethylene. Due to its good mechanical and physical properties, electrical properties, simple processing technology, excellent processing performance and low price, PVC cable material has always been in the forefront of the cable material industry and is widely used. PVC cable materials are generally used in medium and low voltage, data communication cables and other products, general-purpose wire and cable products, PVC cable materials can basically meet the requirements of insulation and sheathing. However, with the expansion of wire and cable applications, the requirements for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K13/06C08K5/12C08K3/22C08K3/30C08K3/34C08K3/36H01B7/295
CPCC08K3/2279C08K3/30C08K3/346C08K3/36C08K5/12C08K9/00C08K9/10C08K13/06C08K2003/3045C08K2201/011C08K2201/014C08L27/06C08L2201/02C08L2203/202C08L2205/025C08L2205/03C08L23/06C08K9/06C08K5/09
Inventor 程晓松张贤灵于德宝孙玉萍王小菲
Owner SUZHOU HENGLI COMM MATERIAL
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