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Flame-retardant and insulating epoxy noise-reducing plate and preparation method for same

A technology of insulating rings and plates, applied in chemical instruments and methods, paper/cardboard layered products, lamination, etc., can solve the problems of poor impact strength, collapse, and poor bending strength of laminated boards, and achieve less space occupation. High flame retardancy, easy installation effect

Active Publication Date: 2013-01-09
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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  • Abstract
  • Description
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Problems solved by technology

However, although the laminate produced by the production method provided by this invention has good flame retardancy and insulation performance, it does not have good noise reduction performance, so it is not suitable for power plants and various voltage levels. Treatment of Noise Pollution in Substations
[0012] In addition, the impact strength of the existing laminates made of flame-retardant epoxy resin is poor. cracking, or even crumbling

Method used

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  • Flame-retardant and insulating epoxy noise-reducing plate and preparation method for same

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preparation example Construction

[0044] At the same time, the present invention also provides a method for preparing a flame-retardant insulating epoxy noise-reducing laminate, said method comprising the following steps:

[0045] (1) Preparation of cured flame retardant epoxy resin glue:

[0046] Add 20-30 parts by weight of dimethylformamide into the container, then add 2.4-3.6 parts by weight of dicyandiamide to dissolve, then add 80-120 parts by weight of flame-retardant epoxy resin, and react at room temperature for 1.5- After 2.5 hours, add 20-30 parts by weight of xylene methylamine, 0.08-0.12 parts by weight of dimethylimidazole, 4-6 parts by weight of acetone and 1.6-2.4 parts by weight of ethanol, and react for 1.5-2.5 hours. Then take a sample test, at 150~170°C, when the polymerization time is in the range of 3.5~4.5min, the preparation of the cured flame retardant epoxy resin glue is completed;

[0047] (2) Preparation of rubber sheet:

[0048] Soak the treated glass cloth in the cured flame-ret...

Embodiment 1

[0058] (1) Preparation of cured flame retardant epoxy resin glue:

[0059] Add 20 parts by weight of dimethylformamide into the container, then add 2.4 parts by weight of dicyandiamide to dissolve, then add 120 parts by weight of flame-retardant epoxy resin, react at room temperature for 1.5 hours, then add 0.08 parts by weight Parts of dimethylimidazole, 4 parts by weight of acetone and 2.4 parts by weight of ethanol, reacted for 1.5 hours, and then sampled and tested. At 150 ° C, when the polymerization time was 3.5 minutes, the cured flame-retardant epoxy resin glue was prepared Complete; wherein, in the cured flame retardant epoxy resin glue solution, the cured flame retardant epoxy resin content is 77.5%.

[0060] (2) Preparation of rubber sheet:

[0061] Soak the treated glass cloth in the cured flame retardant epoxy resin glue prepared in step (1), put the soaked glass cloth into an oven for heating, the steam pressure is 0.7MPa, the temperature is 170°C, and the speed...

Embodiment 2

[0067] (1) Preparation of cured flame retardant epoxy resin glue:

[0068] Add 26.1 parts by weight of dimethylformamide, 3 parts by weight of dicyandiamide, and 100 parts by weight of flame-retardant epoxy resin, react at room temperature for 1.6 hours, then add 0.12 parts by weight of dimethylimidazole, 5.2 parts by weight Parts of acetone and 2 parts by weight of ethanol, reacted for 1.5 hours, at 150 ° C, when the polymerization time was 4.5 minutes, the preparation of the cured flame-retardant epoxy resin glue was completed; wherein, the cured flame-retardant epoxy resin glue In the solution, the cured flame retardant epoxy resin content is 81%.

[0069] (2) Preparation of rubber sheet:

[0070] The steam pressure is 0.65MPa, the temperature is 165°C, and the vehicle speed is 3.4m / min;

[0071] (3), compression molding:

[0072] The pressing pressure is 5.8MPa, the steam pressure is 0.55MPa, the temperature is 155°C, the pressing time is hot pressing for 160 minutes, c...

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Abstract

The invention relates to a flame-retardant and insulating epoxy noise-reducing plate, which is characterized in that the plate comprises a flame-retardant and insulating epoxy noise-reducing laminated plate and a sound-absorbing material, wherein the flame-retardant and insulating epoxy noise-reducing laminated plate is prepared via a glass silk cloth and flame-retardant and insulating epoxy curing glue solution; and the flame-retardant and insulating epoxy curing glue solution comprises the constituents in parts by weight: 80-120 parts of flame-retardant epoxy resin, 2.4-3.6 parts of dicyandiamide, 20-30 parts of dimethyl formamide, 0.08-0.12 parts of dimethyl imidazole, 4-6 parts of acetone, and 1.6-2.4 parts of ethanol. The flame-retardant and insulating epoxy noise-reducing plate provided by the invention has good noise-reducing and sound-absorbing effects, flame-retardant and insulating characteristics, and good bending strength, and is mainly used for abatement for the noise pollution of power plants and transformer substations with various voltage classes.

Description

technical field [0001] The present invention relates to a board and a preparation method thereof, in particular to a flame-retardant insulating epoxy noise-reducing board and a preparation method thereof, which are mainly used for the control of noise pollution in power plants and substations of various voltage levels, and are especially suitable for municipal Substations installed in the area. Background technique [0002] Due to the rapid increase of urban electricity consumption and the increase of urban center electricity load density, 110-220kV and even 500kV substations have entered the central urban area. [0003] Due to the shortage of land in the central urban area, residential buildings are often built around urban substations, including around some old substations. Although substations can be designed as indoor or underground substations, the operating noise of these substations ( Mainly the electromagnetic noise of the transformer and the noise of the cooling an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/04B32B27/38B32B29/00B32B5/02B32B3/24B32B37/06B32B37/08
Inventor 陈锦栋李明
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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