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Resin-base nonlinear composite material for low temperature environment and preparation method of resin-base nonlinear composite material

A composite material, low temperature environment technology

Pending Publication Date: 2017-01-25
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Changing the electrode structure, adding equalizing components, etc. increase the complexity and difficulty of equipment manufacturing, and the equalizing effect is often not ideal
The parallel voltage equalizing capacitor scheme is more difficult to design and manufacture, and parallel voltage equalizing capacitor measures cannot be used in many occasions. In addition, the high voltage capacitors introduced have potential safety hazards that are prone to breakdown accidents
The superconducting lead wire terminal works in a liquid nitrogen environment, its temperature gradient is large, and the high-voltage insulation occasion is complicated. The low-temperature and high-voltage insulation achieved by traditional methods cannot achieve the ideal effect

Method used

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  • Resin-base nonlinear composite material for low temperature environment and preparation method of resin-base nonlinear composite material
  • Resin-base nonlinear composite material for low temperature environment and preparation method of resin-base nonlinear composite material
  • Resin-base nonlinear composite material for low temperature environment and preparation method of resin-base nonlinear composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation process of resin-based nonlinear composite materials for low temperature environment is as follows:

[0027] (1) First add a weighed functional filler into the flask with a particle size of 10-100nm, then add an appropriate amount of anhydrous ethanol and a silane coupling agent in turn, and stir the above mixture for 2.5 hours with a magnetic stirrer until it is evenly mixed Afterwards, the solution was suction-filtered, put into a drying oven, and dried at about 100°C for 10 hours for later use.

[0028] (2) Add the weighed epoxy resin matrix and the above-mentioned functional fillers into the four-necked flask, and stir the mixed solution with a mixer for about 0.5h, so that the epoxy resin matrix and the functional fillers are fully mixed evenly.

[0029] (3) Add the weighed toughening agent and curing agent in sequence to the above mixed solution, and stir the mixture with a mixer for 40 minutes until the mixture becomes transparent without bubbles....

Embodiment 2

[0033] The preparation process of resin-based nonlinear composite materials for low temperature environment is as follows:

[0034] (1) First, add a weighed functional filler into the flask with a particle size of 10-100nm, then add an appropriate amount of anhydrous ethanol and a silane coupling agent in turn, and stir the above mixture for 3.5 hours with a magnetic stirrer until it is evenly mixed Afterwards, the solution was suction-filtered, put into a drying oven, and dried at about 100°C for 12 hours for later use.

[0035] (2) Add the weighed epoxy resin matrix and the above-mentioned functional fillers into the four-necked flask, and stir the mixed solution with a mixer for about 1 hour to fully mix the epoxy resin matrix and the functional fillers.

[0036] (3) Add the weighed toughening agent and curing agent in sequence to the above mixed solution, and stir the mixture for 1 hour with a stirrer until the mixture becomes transparent without bubbles.

[0037] (4) Use...

Embodiment 3

[0040] The preparation process of resin-based nonlinear composite materials for low temperature environment is as follows:

[0041] (1) First, add a weighed functional filler into the flask with a particle size of 10-100nm, then add an appropriate amount of anhydrous ethanol and a silane coupling agent in turn, and stir the above mixture for 3 hours with a magnetic stirrer, and wait until it is evenly mixed Suction filter the solution, put it in a drying oven, and dry it at about 100°C for 11 hours for later use.

[0042] (2) Add the weighed epoxy resin matrix and the above-mentioned functional fillers into the four-necked flask, and stir the mixed solution with a mixer for about 50 minutes to fully mix the epoxy resin matrix and the functional fillers.

[0043] (3) Add the weighed toughening agent and curing agent in sequence to the above mixed solution, and stir the mixture with a mixer for 50 minutes until the mixture becomes transparent without bubbles.

[0044] (4) Use a...

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Abstract

The invention provides a resin-base nonlinear composite material for a low temperature environment and a preparation method of the resin-base nonlinear composite material. The resin-base nonlinear composite material is prepared from the following components in parts by weight: 50-60 parts of epoxy resin, 15-25 parts of a curing agent, 20-40 parts of a flexibilizer, 2-5 parts of a silane coupling agent and 5-10 parts of functional fillers. The preparation method has the advantages that the operation process is simple, and the preparation cost is relatively low. According to the technical scheme, polymer epoxy resin and functional inorganic fillers (such as silicon carbide and zinc oxide) are composited so as to obtain the nonlinear composite material capable of automatically uniformizing the distribution of non-uniform electric fields, so that the generation of space charges is effectively inhibited, and the electrical performance of an insulation structure is improved.

Description

technical field [0001] The invention relates to a nonlinear composite insulating material, in particular to a resin-based nonlinear composite material for low-temperature environments and a preparation method thereof. Background technique [0002] Through the organic combination of superconducting technology and modern electrical / power technology, advanced power equipment such as cables, transformers, current limiters, and energy storage can be constructed, which have the characteristics of large capacity, low loss, high current-carrying density, etc., and have self-control, self-healing, etc. Features. The superconducting power device works in a liquid nitrogen environment, and the electrical connection and temperature transition with the conventional power grid need to be realized through high-voltage leads. As a general component of superconducting power devices, superconducting lead terminals are one of the core technologies that must be faced and solved in the developm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K9/06C08K3/22C08K3/34C08G59/50
CPCC08G59/5033C08K2201/003C08K2201/011C08L63/00C08L2205/025C08L2205/03C08K9/06C08K3/34C08K2003/2296
Inventor 杨艳芳张宏杰黄晓华李松冯鑫丘明
Owner CHINA ELECTRIC POWER RES INST
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