Waterproof flame-retardant protective jacket layer used for cable and manufacturing process of protective jacket layer

A technology of flame-retardant sheath and manufacturing process, which is applied in the field of flame-retardant sheath layer and its preparation process, and can solve the problems of unqualified thermal deformation, rising cost, difficulty in meeting the requirements of product index performance, etc.

Active Publication Date: 2014-06-11
SUZHOU HENGLI COMM MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Waterproof flame-retardant protective jacket layer used for cable and manufacturing process of protective jacket layer
  • Waterproof flame-retardant protective jacket layer used for cable and manufacturing process of protective jacket layer

Examples

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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] Example 1 Example 2 Example 3 100 parts of polyvinyl chloride 100 100 100 Trioctyl trimellitate 20~30 parts 29 25 20 15~25 parts of isodecyl phthalate 25 20 15 Environmental calcium zinc composite stabilizer 5~10 parts 9 8 6 Composite rare earth stabilizer 5~10 parts 10 5 7 4~8 parts of antimony trioxide 4 8 6 Lubricant 0.3~1 part 0.5 0.9 0.3 Antioxidant 0.1~0.5 parts 0.1 0.3 0.5 Nano barium sulfate 3.5~7 parts 3.8 6.5 5.2 2.6~5.2 parts of calcined kaolin 2.8 4 5 Nano silicon dioxide 3.5~7 parts 5 6.8 4...

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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 Applications(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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