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Novel UV-LED ultraviolet crosslinked polyethylene cable material and preparation method thereof

Inactive Publication Date: 2018-12-25
合肥光冉高分子材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a new type of UV-LED ultraviolet crosslinked polyethylene cable material and its preparation method, the main purpose of which is to solve the problem of low crosslinking efficiency of ultraviolet crosslinked polyethylene under UV-LED irradiation

Method used

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  • Novel UV-LED ultraviolet crosslinked polyethylene cable material and preparation method thereof

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Embodiment 1

[0021] Each raw material is prepared according to the following formula: 100 parts of linear low density polyethylene (7042), 1.8 parts of TPO, 1.2 parts of TAC, 1.3 parts of epoxybutane, 0.2 part of antioxidant 1010 and 0.1 part of DLTP; Stir in the feeder at a speed of 250rpm for 5 minutes to obtain the mixture; preheat the extruder to 170°C, put in the above mixture, make the mixture fully plasticized, extrude and enter the water tank to cool, and then enter the UV-LED ultraviolet light Irradiation is carried out in the irradiation cross-linking equipment, and the irradiation time is 3s to obtain ultraviolet light irradiation cross-linked polyethylene wires and cables.

Embodiment 2

[0023] Prepare raw materials according to the following formula: 80 parts of high-density polyethylene (5000s), 20 parts of linear low-density polyethylene (7042), 1.2 parts of ITX, 1.2 parts of TMPTA, 1.0 parts of epoxybutane, 0.3 parts of antioxidant 1010 and 0.1 part of DLTP; the above raw materials were stirred in a mixer at a speed of 250rpm for 5 minutes to obtain a mixture; the extruder was preheated to 165°C, and the above mixture was put in to make the mixture fully plasticized, extruded and entered The water tank is cooled, and then enters the UV-LED ultraviolet light irradiation crosslinking equipment for irradiation, and the irradiation time is 3s to obtain ultraviolet light irradiation crosslinked polyethylene wires and cables.

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Abstract

The invention discloses a novel UV-LED ultraviolet crosslinked polyethylene cable material and a preparation method thereof and relates to the technical field of chemical materials. Crosslinked polyethylene for ultraviolet radiation comprises, by weight, 100 parts of polyethylene, 0.1-0.3 part of free radical photoinitiator, 0.1-3.0 parts of polyfunctional group crosslinking agent, 0.1-3.0 parts of initiation adjuvant and 0.1-2.0 parts of composite antioxidant. Crosslinked polyethylene is quite suitable for ultraviolet radiation and forming ultraviolet crosslinked polyethylene, crosslinking degree of crosslinked polyethylene is increased, crosslinking time is shortened, and production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a novel UV-LED ultraviolet light cross-linked polyethylene cable material and a preparation method thereof. Background technique [0002] Polyethylene has excellent electrical insulation, chemical resistance and good processing performance, so it is widely used in various fields of national production. However, in some special occasions, polyethylene cannot fully meet people's requirements for material properties, such as heat resistance and so on. Therefore, it is necessary to carry out a series of modifications to polyethylene materials, and the most effective way is to crosslink polyethylene. After polyethylene is cross-linked, its molecular structure becomes linear into a three-dimensional network structure, and its mechanical strength, heat resistance, environmental resistance and chemical resistance have been improved to varying degrees, expanding the scope of p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/02C08J7/18H01B3/44C08F255/02C08F226/06C08F2/46
CPCC08F2/46C08F255/02C08J7/18C08L23/06C08L2203/202C08L2207/062C08L2312/06H01B3/441C08L23/0815C08F226/06
Inventor 叶磊叶繁吴强华
Owner 合肥光冉高分子材料科技有限公司
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