Electromagnetic shielding nylon composite material

A nylon composite material and electromagnetic shielding technology, which is applied in the field of electromagnetic shielding nylon composite materials, can solve problems such as insulator failure, shielding net deformation, and the influence of electric field distribution at solid insulation points, and achieves improved electric field, uniform electric field distribution, and excellent performance. The effect of electromagnetic shielding effect

Active Publication Date: 2012-09-26
SHANGHAI ROX ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, it is a metal shielding net. Using this kind of metal net as an electromagnetic shield has the following disadvantages: 1. The formed shielding net is easily deformed during the production process, and the deformed shielding net has a great influence on the distribution of the electric field of the solid insulating part. Affects performance and life of insulation
2. The metal shielding mesh is easy to attach metal particles to it when it is processed and formed. These particles are easily mixed in the subsequent insulating components, causing the components to fail
3. The metal shielding mesh has high thermal conductivity, and the external heat can easily enter the interior along the metal shielding mesh, which will cause the insulator to fail
4. When the solid insulating part is formed, due to the high thermal conductivity of the metal mesh ring, the temperature of the mesh ring cools down quickly when the product is formed, which will lead to product failure. In order to overcome the above shortcomings, a new substitute material is urgently needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Each raw material was weighed according to the corresponding Example 1 data in Table 1.

[0036] Nylon 610 was dried under vacuum at 80°C for 5 hours, and then the dried nylon 610 and other additives: flame retardant, antioxidant and antistatic agent were placed in a high-speed mixer, and carbon fiber and coupling were added while mixing. 3-thiocyanopropyltriethoxysilane, mixed for 3 minutes, then extruded and granulated in a screw extruder at about 210°C, water-cooled strands were cut into granules, screened and dehydrated to obtain the electromagnetic shielding nylon of the present invention composite material.

[0037] Table 1 Formula of electromagnetic shielding nylon composite material Unit: kg

[0038]

Embodiment 2

[0040] Each raw material was weighed according to the data of Example 2 corresponding in Table 1.

[0041] Nylon 610 was dried under vacuum conditions at 75°C for 4 hours, and then the dried nylon 610 was placed in a high mixer, and carbon fiber and coupling agent 3-thiocyanopropyltriethoxysilane were added while mixing, and mixed for 2 Minutes, and then extruded and granulated in a screw extruder at about 200°C, water-cooled strands were cut into pellets, screened and dehydrated to obtain the electromagnetic shielding nylon composite material of the present invention.

Embodiment 3

[0043] Each raw material was weighed according to the data of Example 3 corresponding in Table 1.

[0044] Nylon 610 was dried under vacuum conditions at 85°C for 6 hours, and then the dried nylon 610 and other additives and antistatic agents were placed in a high-speed mixer, and carbon fiber and coupling agent 3-thiocyanopropyltri was added while mixing. Ethoxysilane, mixed for 3 minutes, then extruded and granulated in a screw extruder at about 220°C, water-cooled strands, granulated, screened and dehydrated to obtain the electromagnetic shielding nylon composite material of the present invention.

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Abstract

The invention discloses an electromagnetic shielding nylon composite material, which comprises the following components of: by weight, 60-70 parts of nylon 610, 25-35 parts of carbon fiber, 0.5-1.5 parts of a coupling agent and 0-5 parts of other auxiliary agent. The electromagnetic shielding nylon composite material prepared in the invention has an excellent electromagnetic shielding effect. The electromagnetic shielding nylon composite material is further made into an electromagnetic shielding lattice apron which can be effectively used for electric field shielding of solid power insulating parts.

Description

technical field [0001] The invention relates to an organic polymer composite material, in particular to an electromagnetic shielding nylon composite material. Background technique [0002] Traditional solid-state power insulation components, in order to effectively improve the life of solid-state power insulation components, traditional metal materials will be used to make corresponding components to improve the electric field of power insulation devices, so as to prolong the life of components and improve components. reliability. Generally, it is a metal shielding net. Using this kind of metal net as an electromagnetic shield has the following disadvantages: 1. The formed shielding net is easily deformed during the production process, and the deformed shielding net has a great influence on the distribution of the electric field of the solid insulator. Affect the performance and life of the insulation. 2. When the metal shielding mesh is processed and formed, it is easy to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08K13/04C08K7/06
Inventor 曹东华
Owner SHANGHAI ROX ELECTRIC
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