Flame resisting wave absorption base material and process for making same

A kind of flame retardant and base material technology, which is applied to the parts of the instrument, shielding, instruments, etc., can solve the problems of pollution, large power consumption, short service life, etc., and achieve low cost of use, simple manufacturing process and long service life Effect

Active Publication Date: 2005-09-07
南京曼杰科电子工程有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the production or processing method of using sponge as a carrier to make a wave-absorbing substrate is to use organic matter as a diluent to soak the sponge, so that the flame retardant and wave-absorbing agent can be immersed in the sponge. This chemical treatment or processing process brings serious problems. pollution, the harmful gas volatilization generated by cutting the sponge with the electric heating wire damages the health of the operator, and consumes a large amount of electric energy
The oxygen index of the sponge pyramid absorbing substrate produced by this method is less than 33, and the flame ignition and propagation smoke density is greater than 200 (polyurethane sponge); due to the insufficient strength of the sponge itself, the pyramid is easy to bend, It is easy to age or sag, resulting in poor absorbing performance. The opening angle of the pyramid must be greater than 15 degrees. The application range is limited, the service life is relatively short, and it cannot be reused after dismantling; the use of sponge absorbing materials still requires a huge cost of fire extinguishing system

Method used

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  • Flame resisting wave absorption base material and process for making same
  • Flame resisting wave absorption base material and process for making same

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Embodiment Construction

[0020] Such as figure 1 As shown, take non-woven fabric as carrier; mix aluminum-magnesium composite powder (magnesium oxide powder can also be used), water-soluble plasticizer, binder such as modified polyvinyl alcohol and appropriate amount of water, mix well, and then coat On the non-woven fabric, let it stand for a while; then mix the binder, carbon black and an appropriate amount of water, stir evenly, and coat it on the non-woven fabric after it has been left, and then let it stand for a while; The size of the pyramid unit body is mechanically indented, and then folded according to the indentation marks, bonded with an adhesive, and made into the shape of the pyramid unit body, and dried and shaped. As long as one surface is coated and the surface is the outer layer, the pyramid unit body is made. Strengthen the structural performance of the non-woven fabric, flame retardant, make the non-woven fabric foldable, elastic, and able to absorb waves.

[0021] Such as figure 2 As...

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Abstract

This invention relates to flame resisting wave absorbent base material used in microwave screened room and its manufacturing process, which adopts non-woven as base material and coats the mixture of aluminum-magnesium compositing powder, water-soluble plasticizer, adhensive, black pigment and water on non-woven, after mechanical impressing, folding to make it pyramid unit. It has the advantages of process simplicity, non-pollution, conservation of energy, longevity of service and lower cost.

Description

Technical field [0001] The invention relates to a wave-absorbing base material and a manufacturing process, in particular to a flame-retardant wave-absorbing base material used in a microwave shielding darkroom and a manufacturing process. Background technique [0002] Prior to the present invention, the absorbing substrate used for absorbing electromagnetic waves, especially microwave shielding darkrooms, uses sponge as a carrier. The flame retardant and wave absorbing agent are immersed in the sponge by the immersion method, and then made into a pyramid shape , Solve the electromagnetic wave reflected in the microwave shielding darkroom to ensure the free space for testing. [0003] However, the production or processing method of using sponge as a carrier to make the absorbing substrate is to soak the sponge with organic matter as a diluent, so that the flame retardant and absorbing agent can be immersed in the sponge. This chemical treatment or processing process brings seriou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G12B17/02
Inventor 张纪纲
Owner 南京曼杰科电子工程有限公司
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