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Adhesive for crosslinked polyethylene and silicone rubber, preparation method and use method thereof

A cross-linked polyethylene and adhesive technology, applied in the directions of adhesives, bonding methods, adhesive additives, etc., can solve the problems of low installation efficiency and complex process, and achieve improved installation efficiency, simple process, and excellent anti-pollution flashover. sexual effect

Active Publication Date: 2020-04-21
HANGZHOU XINENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned patent uses the process of applying polyethylene special adhesive and RTV to replace the traditional silicone grease application process. The original one-step process is increased to two processes. The process is complicated and the installation efficiency is low.

Method used

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  • Adhesive for crosslinked polyethylene and silicone rubber, preparation method and use method thereof
  • Adhesive for crosslinked polyethylene and silicone rubber, preparation method and use method thereof
  • Adhesive for crosslinked polyethylene and silicone rubber, preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0096] 2. Preparation of cross-linked polyethylene and silicone rubber adhesive:

[0097] The first preparation method:

[0098] A preparation method of an adhesive of polyethylene and silicone rubber, comprising the following steps:

[0099] Preparation of A:

[0100] SA-1, weigh each component in A in proportion;

[0101] SA-2, first add the basic polymer and basic crosslinking agent in A to the planetary mixer, and mix at low pressure for 15 minutes;

[0102] SA-3, add additional cross-linking agent and continue to stir for 30 minutes with nitrogen gas;

[0103] SA-4, add filler and stir for 30 minutes;

[0104] SA-5, vacuum sealed and stored;

[0105] Preparation of B:

[0106] SB-1, weigh each component in B in proportion;

[0107] SB-2, first add the basic polymer in B to the planetary mixer, and stir at low pressure for 15 minutes;

[0108] SB-3, add filler and stir for 30 minutes;

[0109] SB-4, add catalyst and mix for 30 minutes;

[0110] SB-5, vacuum seale...

Embodiment 1

[0128] An adhesive of cross-linked polyethylene and silicone rubber, comprising A and B, wherein,

[0129] A comprises the following components by weight:

[0130] 100 parts of hydroxyl silicone oil, 10 parts of basic crosslinking agent, 10 parts of additional crosslinking agent and 5 parts of hydrophobic fumed silica;

[0131] The basic crosslinking agent consists of 2 parts of methyltrimethoxysilane, 2 parts of methyltriethoxysilane, 2 parts of vinyltrimethoxysilane, 2 parts of vinyltriethoxysilane, 2 parts of Composition of phenyltrimethoxysilane; additional crosslinking agent consists of 2 parts of isocyanatopropyltriethoxysilane, 2 parts of vinyltriisopropenoxysilane, 2 parts of methyltriisopropenoxysilane , 2 parts of phenyl triisopropenyloxysilane, 2 parts of tetramethylguanidinopropyl trimethoxysilane;

[0132] B comprises the following components by weight:

[0133] 100 parts of hydroxy silicone oil, 5 parts of hydrophobic fumed silica and 0.2 part of catalyst;

[0...

Embodiment 2

[0137] An adhesive of cross-linked polyethylene and silicone rubber, comprising A and B, wherein,

[0138] A comprises the following components by weight:

[0139] 100 parts of hydroxyl silicone oil, 20 parts of basic crosslinking agent, 20 parts of additional crosslinking agent and 10 parts of hydrophobic fumed silica;

[0140] The basic crosslinking agent consists of 4 parts of methyltrimethoxysilane, 4 parts of methyltriethoxysilane, 4 parts of vinyltrimethoxysilane, 4 parts of vinyltriethoxysilane, 4 parts of Composed of phenyltrimethoxysilane; additional crosslinking agent consists of 4 parts of isocyanatopropyltriethoxysilane, 4 parts of vinyltriisopropenoxysilane, 4 parts of methyltriisopropenoxysilane , 4 parts of phenyl triisopropenyloxysilane, 4 parts of tetramethylguanidinopropyl trimethoxysilane;

[0141] B comprises the following components by weight:

[0142] 100 parts of hydroxy silicone oil, 10 parts of hydrophobic fumed silica and 0.3 part of catalyst;

[...

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Abstract

The invention relates to the field of adhesives, in particular to an adhesive for crosslinked polyethylene and silicone rubber, a preparation method and a use method. Key points of a technical schemeof the invention are as follows: the adhesive comprises: A, which comprises the following components in parts by weight: 100 parts of a base polymer, 10-25 parts of a base crosslinking agent, 10-30 parts of an additional crosslinking agent and 5-15 parts of a filling material; and B, which comprises the following components in parts by weight: 100 parts of a base polymer, 5-15 parts of a filling material and 0.2-0.5 part of a catalyst; wherein the base polymers in the A and the B are hydroxyl silicone oil. The adhesive provided by the invention can be crosslinked with the crosslinked polyethylene and the silicone rubber, so the crosslinked polyethylene and the silicone rubber can be bonded to repair scratches and air gaps on the main insulation of a cable; meanwhile, water vapor can be prevented from permeating from a wire core and the outside along a pressing interface to cause breakdown accidents; and the reliability and stability of the cable during operation are improved.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to an adhesive of cross-linked polyethylene and silicone rubber, a preparation method and a use method. Background technique [0002] Due to its reasonable structure and excellent electrical properties, XLPE has been widely used in distribution networks and has gradually replaced traditional oil-paper insulated structural cables. However, factors such as rough cable manufacturing technology, poor construction technology, man-made damage, and harsh operating environment will cause insulation defects of XLPE cables and affect their insulation performance. The State Grid Corporation of China has made statistics on the operation failures and defects of power cable equipment. The statistics show that more than 95% of the operation failures of power cables are caused by the substandard quality of the cable accessories installers during installation. [0003] Due to limited transportation conditi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/04C09J11/04C09J11/06C09J5/04
CPCC09J183/04C09J11/04C09J11/06C09J5/04C08L83/04C08K13/02C08K3/36C08K5/5419C08K5/5425C08K5/544C08K5/5435C08K5/5465
Inventor 胡克勍佘晓峰刘文斌
Owner HANGZHOU XINENG NEW MATERIAL CO LTD
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