Crosslinked polystyrene, high-power pulse vacuum insulator and preparation method

A technology of cross-linked polystyrene and styrene, used in insulators, electrical components, circuits, etc., can solve the problem that the size cannot meet the requirements of large high-power pulse devices, and achieve good high-voltage breakdown performance and good vacuum performance. , the effect of stable dielectric constant

Inactive Publication Date: 2013-04-03
四川中久红宇科技有限公司
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Problems solved by technology

[0003] At present, cross-linked polystyrene products are manufactured domestically, and the size cannot meet the requirements of large-scale high-power pulse devices

Method used

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  • Crosslinked polystyrene, high-power pulse vacuum insulator and preparation method

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Embodiment Construction

[0027] The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] The invention provides a kind of cross-linked polystyrene, its raw material comprises: by mass percentage, 85%-98% styrene, 1%-10% divinylbenzene, 0.5%-5% azobisisoheptanonitrile;

[0029] The present invention also provides a preparation method for the above-mentioned cross-linked polystyrene, comprising: weighing raw materials and mixing materials; injecting the mixed materials into a mold; putting the mold into brine to cause a polymerization reaction; The product is dried...

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Abstract

The invention relates to the chemical field, and in particular relates to crosslinked polystyrene, a high-power pulse vacuum insulator and a preparation method. The crosslinked polystyrene comprises the following raw materials by mass percent: 85-98% of styrene, 1-10% of divinyl benzene, and 0.5-5% of azobisisobutyronitrile; the preparation method of the crosslinked polystyrene comprises the steps of weighing the raw materials, and mixing the raw materials; injecting the mixed raw materials into a mould; placing the mould into brine so as to conduct polymerization reaction; and drying the polymerized product. The diameter of the high-power pulse vacuum insulator is greater than 1m; the thickness of the high-power pulse vacuum insulator is greater than 0.1m; and the preparation method of the high-power pulse vacuum insulator comprises the crosslinked polystyrene preparation method, the product dried is processed into a finished product according to the size of the insulator. The crosslinked polystyrene, the high-power pulse vacuum insulator and the preparation method are applicable to insulation of the high-power pulse vacuum environment.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a cross-linked polystyrene, high-power pulse vacuum insulator and a preparation method. Background technique [0002] At present, the insulating materials used under high-power pulses in China include plexiglass, polyethylene, polyamide, etc. This solid insulating material can no longer meet the needs of engineering design, which is reflected in: on the one hand, the dielectric strength of the material cannot meet the insulation requirements under the action of high-voltage pulses, and its conductance increases nonlinearly under the action of a strong electric field, and the electric field strength reaches a certain level. When a critical value is reached, the insulating material loses its insulating properties; on the other hand, other properties of the material cannot meet the design requirements. For example: in the working environment with strong external radiation, the abil...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F212/36C08L25/08H01B17/00H01B19/00
Inventor 李信鲁伟员刘伟张先
Owner 四川中久红宇科技有限公司
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