Preparation method of flame-retardant and high-temperature thermal shrinkage pipe

A heat-shrinkable tube and high-voltage-resistant technology, which is applied in the direction of plastic/resin/wax insulators, organic insulators, etc., can solve the problems of poor physical and mechanical properties and application limitations, and achieve excellent voltage resistance, strong anti-interference, and high-quality materials Good compatibility between

Inactive Publication Date: 2018-12-21
HEFEI DAZHUO ELECTRIC POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of power equipment heat shrinkable tube has good insulation, but its physical and mechanical properties are poor, and its applicability is limited

Method used

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  • Preparation method of flame-retardant and high-temperature thermal shrinkage pipe
  • Preparation method of flame-retardant and high-temperature thermal shrinkage pipe
  • Preparation method of flame-retardant and high-temperature thermal shrinkage pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] This embodiment relates to a flame-retardant and high-pressure heat-shrinkable tube and a preparation method thereof. The heat-shrinkable tube is composed of the following raw materials in parts by weight:

[0042] 64 parts of styrene-isoprene-styrene block copolymer;

[0043] 24 parts of maleic anhydride grafted EPDM rubber;

[0044] 8 parts of polyphenylene ether resin;

[0045] 5 parts red stone fat;

[0046] 10 parts of perovskite tailings powder;

[0047] 2 parts of tri(butoxyethyl) phosphate;

[0048] 0.6 parts of aluminum-zirconium double metal coupling agent;

[0049] 1.5 parts of compound crosslinking agent;

[0050] 1 part of compound anti-aging agent.

[0051] The selection and production of styrene-isoprene-styrene block copolymer, maleic anhydride grafted EPDM rubber, compound crosslinking agent and compound anti-aging agent in this example are shown in Table 1 below :

[0052] Table 1

[0053]

[0054]

[0055] The preparation method of the he...

Embodiment 2

[0059] This embodiment relates to a flame-retardant and high-pressure heat-shrinkable tube and a preparation method thereof. The heat-shrinkable tube is composed of the following raw materials in parts by weight:

[0060] 68 parts of styrene-isoprene-styrene block copolymer;

[0061] 26 parts of maleic anhydride grafted EPDM rubber;

[0062] 9 parts of polyphenylene ether resin;

[0063] 5.5 parts of red stone fat;

[0064] 11 parts of perovskite tailings powder;

[0065] 2.3 parts of tris (butoxyethyl) phosphate;

[0066] 0.65 parts of aluminum-zirconium double metal coupling agent;

[0067] 1.8 parts of compound crosslinking agent;

[0068] Compound anti-aging agent 1.4 parts.

[0069] The selection and production of styrene-isoprene-styrene block copolymer, maleic anhydride grafted EPDM rubber, compound crosslinking agent and compound anti-aging agent in this example are shown in Table 2 below :

[0070] Table 2

[0071]

[0072]

[0073] The preparation meth...

Embodiment 3

[0077] This embodiment relates to a flame-retardant and high-pressure heat-shrinkable tube and a preparation method thereof. The heat-shrinkable tube is composed of the following raw materials in parts by weight:

[0078] 72 parts of styrene-isoprene-styrene block copolymer;

[0079] 28 parts of maleic anhydride grafted EPDM rubber;

[0080] 10 parts of polyphenylene ether resin;

[0081] 6 parts red stone fat;

[0082] 12 parts of perovskite tailings powder;

[0083] 2.5 parts of tris (butoxyethyl) phosphate;

[0084] 0.7 parts of aluminum-zirconium double metal coupling agent;

[0085] 2 parts of compound cross-linking agent;

[0086] Compound anti-aging agent 1.5 parts.

[0087] The selection and production of styrene-isoprene-styrene block copolymer, maleic anhydride grafted EPDM rubber, compound crosslinking agent and compound anti-aging agent in this example are shown in Table 3 below :

[0088] table 3

[0089]

[0090] The preparation method of the heat-shr...

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Abstract

The invention discloses a preparation method of a flame-retardant and high-temperature thermal shrinkage pipe, and relates to the technical field of power thermal shrinkage pipes. The preparation method comprises the following steps of internal mixing and mixing, extruding and shaping, radiating, expanding and forming, cooling, shaping and the like. The thermal shrinkage pipe has the advantages that the preparation is simple and convenient; the tensile strength, elongation rate at break, high temperature-resistant property, aging-resisting property, flame-retardant property, insulation property, high temperature-resistant property, shielding property and the like are obviously improved; the whole property is more excellent; the application property is better; the service life is guaranteed.

Description

technical field [0001] The invention relates to the technical field of electric heat-shrinkable tubes, in particular to a preparation method of a flame-retardant and high-pressure resistant heat-shrinkable tube. Background technique [0002] Insulated heat shrinkable tubes can provide insulation and protection for wires, cables and other products. In some special fields, due to the need to experience temperature cycle changes and receive a certain amount of radiation during the use of insulating heat shrinkable tubes, it is required that the insulating heat shrinkable tubes should have excellent insulation properties at the same time. Resistant to temperature changes and resistant to radiation performance. At present, after experiencing 6.5 temperature change cycles (the temperature change process of returning to -45°C after staying at the lowest temperature of -45°C and the highest temperature of 90°C for 5 hours is regarded as one cycle), the ordinary 1 Both ends of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L51/04C08L71/12C08K13/02C08K5/521C08K5/18C08K5/526C08K3/34C08J7/12H01B3/44
CPCC08L53/02C08J7/123C08J2353/02C08J2451/04C08J2471/12C08L2201/02C08L2201/08C08L2203/18C08L2205/03H01B3/442C08L51/04C08L71/12C08K13/02C08K5/521C08K5/18C08K5/526C08K3/34
Inventor 杨自芬
Owner HEFEI DAZHUO ELECTRIC POWER CO LTD
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