Electromagnetic shielding wave-absorbing material and manufacturing process thereof

A wave-absorbing material and electromagnetic shielding technology, applied in the fields of magnetic/electric field shielding, flat products, electrical components, etc., can solve the problems that wave-absorbing powder cannot be added evenly, mass production is time-consuming and laborious, and thick sheets cannot be made. , to achieve the effect of easy control of product size, small investment in equipment, and small demand for personnel

Pending Publication Date: 2022-05-03
苏州铂韬新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] (1) There are many types of reagents added, the process is cumbersome, and mass production is time-consuming and laborious.
[0011] The energy consumption is high; (2) Thick sheet products cannot b

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] An electromagnetic shielding absorbing material that includes the following components by weight:

[0029] CPE7130 powder is 6 servings

[0030] Iron silicon chromium absorbing powder 13 parts.

[0031] The production process of electromagnetic shielding absorbing material is as follows:

[0032] (1): CPE7130 powder with a weight of 6 parts is added to the mixer for 10 minutes of mixing;

[0033] (2): Add 13 parts of iron silicon chromium suction powder to the densely refined CPE7130, and mix CPE7130 and iron silicon chromium absorbing powder evenly through the principle of kneading;

[0034] (3): The mixed material is put into the granulation equipment, and the mixture particles with a length of no more than 2mm are created, and the mixture particles with stable performance are obtained after air cooling

[0035] (4): The mixture particles are extruded by the extruder and then the calender is pressed to obtain a wave-absorbing material with uniform thick...

Example Embodiment

[0039] Example 2

[0040] An electromagnetic shielding absorbing material that includes the following components by weight:

[0041] CPE7130 powder is 6 servings

[0042] Iron silicon chromium absorbing powder 13 parts.

[0043](1): CPE7130 powder with a weight of 6 parts is added to the mixer with a heating temperature of 135 °C to start the machine for 8 minutes of sealing;

[0044] (2): Add 13 parts of iron silicon chromium suction powder to the densely refined CPE7130, and mix CPE7130 and iron silicon chromium absorbing powder evenly through the principle of kneading;

[0045] (3): the mixed materials are put into the granulation equipment, the equipment temperature parameters are 60 °C in area A, 80 °C in area B, 120 °C in area C, and the length is not more than 2 mm of mixture particles, which are dried by water cooling and air to obtain stable performance of mix particles;

[0046] (4): The mixture particles are extruded by the extruder and then the calender is pressed to ...

Example Embodiment

[0048] Example 3

[0049] An electromagnetic shielding absorbing material that includes the following components by weight:

[0050] CPE7130 powder is available in 7 servings

[0051] Iron silicon chromium absorbing powder 14 parts.

[0052] The production process of electromagnetic shielding absorbing material is as follows:

[0053] (1): CPE7130 powder with a weight of 7 parts is added to the mixer for 9 minutes of sealing;

[0054] (2): Add 14 parts of iron silicon chromium absorbing powder to the densely refined CPE7130, and mix cpE7130 and iron silicon chromium absorbing powder evenly through the principle of kneading;

[0055] (3): The mixed material is put into the granulation equipment, and the mixture particles with a length of no more than 2mm are created, and the mixture particles with stable performance are obtained after air cooling

[0056] (4): The mixture particles are extruded by the extruder and then the calender is pressed to obtain a wave-absorbing material wit...

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Abstract

The invention discloses an electromagnetic shielding wave-absorbing material which is composed of CPE7130 powder and iron-silicon-chromium wave-absorbing powder according to a certain proportion, during preparation, the CPE7130 powder and the iron-silicon-chromium wave-absorbing powder are directly put into an internal mixer to be mixed at a certain temperature, the mixed mixture is granulated, and the wave-absorbing material in the form of a coiled material is obtained after extrusion and calendering. The wave-absorbing material can be used for an electronic component detection camera obscura, and the problem that electronic components are interfered by electromagnetic waves in the detection process is solved.

Description

technical field [0001] The invention relates to the fields of electromagnetic shielding and electromagnetic wave absorption, and discloses an electromagnetic shielding wave-absorbing material and a manufacturing process thereof. Background technique [0002] At present, the processing technology of absorbing materials is mostly in the following ways: [0003] S1: Stir the solvent, supermagnetic powder, and dispersant with a contact mixer for 20 to 40 minutes; [0004] S2: Add the adhesive and carry out second quick stirring for 10-20 minutes; [0005] S3: Add a thickener to adjust the viscosity to 7500-10000mPa .s; [0006] S4: Add anti-sedimentation agent and stir slowly for 3-6 minutes to obtain slurry; [0007] S5: using a tape casting machine to scrape and coat the slurry, and wind it up after drying; [0008] S6: heating the material obtained in step S5 to 60-70° C., calendering through a drum vulcanizer, adding wave-absorbing powder, then drying and winding. [00...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08K3/01H05K9/00B29D7/01
CPCC08K3/01H05K9/0081B29D7/01C08L23/286
Inventor 李健管由全从涛
Owner 苏州铂韬新材料科技有限公司
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