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Silicone hydride crosslinked non-halogen flame-proof smoke-restraining polyvinyl chloride cable material and manufacturing process thereof

A polyvinyl chloride cable, silane cross-linking technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of material processing performance and mechanical performance deterioration, large addition of inorganic flame retardants, and uneven cable surface. The effect of improving degradation and product surface roughness, low smoke density and good smoke suppression performance

Inactive Publication Date: 2010-09-29
LIAOCHENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pre-crosslinking problem of silane crosslinked PVC cable materials has always restricted the application of this type of material, mainly because the surface of the processed cable is not smooth
However, inorganic flame retardants are generally added in a large amount, which leads to deterioration of the processing performance and mechanical properties of the material

Method used

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  • Silicone hydride crosslinked non-halogen flame-proof smoke-restraining polyvinyl chloride cable material and manufacturing process thereof
  • Silicone hydride crosslinked non-halogen flame-proof smoke-restraining polyvinyl chloride cable material and manufacturing process thereof
  • Silicone hydride crosslinked non-halogen flame-proof smoke-restraining polyvinyl chloride cable material and manufacturing process thereof

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Embodiment Construction

[0020] The technical solution proposed by the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, but is not limited thereto.

[0021] The invention provides a silane cross-linked halogen-free flame-retardant and smoke-suppressing polyvinyl chloride cable material, which uses the following materials: PVC resin, heat stabilizer, lubricant, cross-linking agent, flame retardant and synergist, Plasticizer, anti-pre-crosslinking agent, catalyst dibutyltin dilaurate.

[0022] The plasticizer can be selected from one or more of dioctyl phthalate, dibutyl phthalate, trioctyl trimellitate, and chlorinated paraffin. Silane crosslinking agent can choose γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane, β-(aminoethyl)γ-aminopropylmethyldimethoxysilane, β-( Aminoethyl)γ-aminopropylmethyldiethoxysilane, N-β-(aminoethyl)γ-aminotrimethoxysilane, N-phenyl-γ-aminopropyltrimethoxysilane, 3 - One or more of mercaptopropyl...

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Abstract

The invention discloses a silane crosslinking HFFR flame retardant polyvinyl chloride cable material and a preparation technique thereof. The compositions by weight portion of the cable material are: 100 portions of polyvinyl chloride resin, 10 to 100 portions of a plasticizer, 0.5 to 10 portions of a silane cross-linking agent, 0.5 to 6 portions of a heat stabilizer, 30 to 100 portions of a metal hydroxide flame retardant, 1 to 10 portions of a metallic compound flame retardant synergist, 0.1 to 5 portions of a preventing cross-linking agent, 0.1 to 5 portions of a lubricant, 0.1 to 0.5 portion of an antioxidizer, 0.05 to 0.1 portion of dibutyl tin dilaurate and appropriate amount of a colorant. The cable material has the characteristics that the mechanical property is good, the mechanical intensity is increased by 20 to 30 percent compared with the uncrosslinked PVC cable material, the heat resistance is good, the electrical property is good, the specific volume resistance is increased by 3 to 5 times compared with the uncrosslinked PVC cable material, the insulating property of the cable is improved and the aging property is good.

Description

technical field [0001] The invention belongs to the technical field of cable materials, and in particular relates to a silane-crosslinked halogen-free flame-retardant smoke-suppressing polyvinyl chloride cable material and a preparation process thereof. Background technique [0002] In recent years, with the development of my country's electric power industry and communications, the demand for cable materials has increased rapidly. Among the types of cable materials, polyvinyl chloride (PVC) cable materials are the most used varieties, accounting for about 80% of the total cable materials. According to preliminary statistics, in 2007, the total domestic demand for cable materials was around 500,000 tons. In order to reduce the space occupied by cables, it is the general trend to increase the laying density of cables. The non-cross-linked varieties of PVC cable materials currently used in China are difficult to meet this demand. Compared with non-cross-linked cable materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08K13/02C08K5/54C08K3/22C08K5/57C08K3/24C08K3/34B29B9/12B29C47/92H01B7/295B29C48/92
CPCB29C48/9185B29C48/04B29C48/92B29C2948/9259B29C2948/92704B29C2948/92828B29C2948/92866B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 滕谋勇邵鑫徐保良冷海强
Owner LIAOCHENG UNIV
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