CN102651948A - Electrical enclosure material and preparation method thereof - Google Patents
Electrical enclosure material and preparation method thereof Download PDFInfo
- Publication number
- CN102651948A CN102651948A CN2011104532598A CN201110453259A CN102651948A CN 102651948 A CN102651948 A CN 102651948A CN 2011104532598 A CN2011104532598 A CN 2011104532598A CN 201110453259 A CN201110453259 A CN 201110453259A CN 102651948 A CN102651948 A CN 102651948A
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- carbon fiber
- fiber surface
- felt
- electric appliance
- appliance casing
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an electrical enclosure material which is characterized in that in the preparation process of a common electrical enclosure material, at least one layer of carbon fiber surface mat or plated carbon fiber surface mat capable of conducting electricity, heat and electromagnetism is added; the surface mat can be designed on the surface of plastic and also can be designed in the plastic; and firstly the surface mat is pre-laid in a mold or pre-suspended in the mold, and then molding is carried out according to a conventional plastic molding mode. The surface mat can be used for enhancing the surface strength of an electrical enclosure; the manufactured electrical enclosure has the advantages of good firmness, good thermal conduction, no electrostatic effect, long service life, good electromagnetic shielding performance, simple preparation process and low cost.
Description
Technical field
But the present invention relates to a kind of heat conduction, antistatic, anti-electromagnetic radiation electric appliance casing material and preparation method thereof.
Background technology
Along with the progress of science and technology, the mankind are not in the encirclement of electromagnetism all the time, and various electronic devices such as TV, portable computer all can produce electromagnetic radiation.Can say so,, just have electromagnetic radiation as long as electric equipment is arranged.
Electromagnetic radiation is divided into thermal effect and non-thermal effect to the influence of human body.Thermal effect is a human body when accepting electromagnetic radiation, and molecule can heat up human body along with the conversion rapid movement of electromagnetic field in the body, and thermal effect can cause the dysfunction of nervous centralis and plant psychiatric system, shows as dizziness, insomnia, inferior health such as forgetful shows.Non-thermal effect, promptly absorbed radiation is not enough to cause that body temperature increases, but also causes physiological change and reaction.Live and work is of a specified duration excessively in this environment, dizziness, fatigue and weak can occur, is losing one's memory, symptom such as anorexia.When certain boundary value of high frequency (microwave) electromagnetic radiation serious offense, can make the people suffer from insomnia, vegetative nerve functional disturbance syndrome such as drowsiness; And alopecia, white blood cell decline, eye-blurred, phacoscotasmus, ECG change etc.
The electromagnetic wave pollution problem is serious day by day, become after noise pollution, air pollution, water are polluted, become the threat human health the fourth-largest public hazards.Therefore, prevent that the external electromagnetic radiation electromagnetic wave of electrical equipment from being the great common problem that needs to be resolved hurrily at present.At present, in the serious electric equipment of some radiation, adopt metal shell, but metal shell not only weight is big, and one-shot forming property is poor, has a lot of seams.Patent CN101009995 selects for use metal wire to be woven into netted mold according to the appliance shell shape and puts into the plastics moulding, makes electric appliance casing.The uniformity of metal knitted net is difficult to control among the patent CN101009995, and for complex-shaped electric appliance casing, the difficulty of wire netting braiding is also bigger.
Summary of the invention
In view of this, the object of the invention will address the above problem exactly, and it is simple to invent a kind of technology, electric appliance casing material with low cost and preparation method thereof.
Order of the present invention is realized through following technical scheme:
Electric appliance casing material of the present invention, adding one deck in the structure at least can conduct electricity, the carbon fiber surface felt or the plating carbon fiber surface carpet veneer of heat, electromagnetism, and matrix is plastics.
Said carbon fiber surface felt is the commercially available prod, adopts wet method to process by chopped strand, is distributed in a kind of material that forms on the organic matrix by the irregular location of chopped carbon fiber, and surface density is: 20 g/m
2-100g/m
2When electrical equipment requires high capability of electromagnetic shielding, can adopt plating carbon fiber surface felt, said plating carbon fiber surface felt, be by surface chemical plating the carbon fiber of copper or the nickel surperficial felt that adopts wet method to process.
Said surperficial felt can design the surface at plastics, also can design the inside at plastics.
Said electric appliance casing preparation methods earlier is laid on said carbon fiber surface felt or plating carbon fiber surface felt in the mould in advance or is suspended in advance in the mould, by the moulding of conventional plastic shaping method.
Described conventional plastic shaping method has: hand is stuck with paste method, die pressing, centrifugal casting, process for resin transfer molding, injection mo(u)lding, injection moulding, pressure bag method, extrusion molding and corrugated plating, dull and stereotyped continuously shaped.
Being employed among the present invention increases the carbon fiber surface felt or the plating carbon fiber surface carpet veneer of one deck ability conduct electricity, heat, electromagnetism at least in the plastic casing material matrix, can strengthen the surface strength of electric appliance casing, and the electric appliance casing robustness of processing is good; Thermal conductivity is good; No electrostatic effect, long service life, capability of electromagnetic shielding is good; Preparation technology is simple, and is with low cost.
Description of drawings
Fig. 1 is the electromagnet shield effect test result of the material of embodiment 1.
Fig. 2 is the electromagnet shield effect test result of the material of embodiment 2.
Specific embodiments
Further specify through embodiment below:
Embodiment 1
Select for use epoxy resin to do basis material, polyamide 650 is made curing agent.Epoxy resin and curing agent are pressed 1:1 (percentage by weight) mixing, pour into then in the mould of having brushed dimethicone, horizontal lay one deck surface density is 30g/m on mixed liquor
2The carbon fiber surface carpet veneer, the mixed liquor of remaining epoxy and curing agent is continued to pour in the mould, mold closing kept 4 hours under certain pressure then, made material cured, finally demould.Obtained material has good electromagnet shield effect, and at 0MHz-1000 MHz, electromagnet shield effect is 43-53dB, test result such as Fig. 1.
Embodiment 2
Selecting surface density for use is 20 g/m
2The carbon fiber surface carpet veneer be layered on the injection forming mold inner surface, according to the injection molding process of routine, the plastics that heat is melted are injected die cavity by high pressure, behind cooling curing, the demoulding obtains formed products.Obtained material has good electromagnet shield effect, and at 0MHz-1000 MHz, electromagnet shield effect is 44-53dB, test result such as Fig. 2.
Embodiment 3
Selecting surface density for use is 30g/m
2Nickel-coated carbon fibers surface carpet veneer, the preparation process is identical with instance 1.Obtained material has best electromagnet shield effect, and at 0MHz-700 MHz, electromagnet shield effect is 55-70dB; At 700 MHz-3198 MHz, electromagnet shield effect is 70-90dB.
Claims (5)
1. electric appliance casing material is characterized in that: adding one deck in the structure at least can conduct electricity, the carbon fiber surface felt or the plating carbon fiber surface carpet veneer of heat, electromagnetism, and matrix is plastics.
2. electric appliance casing material according to claim 1 is characterized in that: said carbon fiber surface felt adopts wet method to process by chopped strand, and surface density is: 20 g/m
2-100g/m
2Said plating carbon fiber surface felt, be by surface chemical plating the carbon fiber of copper or the nickel surperficial felt that adopts wet method to process.
3. electric appliance casing material according to claim 1 is characterized in that: said surperficial felt design is on the surface of plastics, or design is in the inside of plastics.
4. the described electric appliance casing preparation methods of claim 1 is characterized in that: be laid on said carbon fiber surface felt or plating carbon fiber surface felt in the mould in advance earlier or be suspended in advance in the mould, by the moulding of conventional plastic shaping method.
5. electric appliance casing preparation methods according to claim 4; It is characterized in that; Described conventional plastic shaping method has the hand of comprising to stick with paste method, die pressing, centrifugal casting; Process for resin transfer molding, injection mo(u)lding, injection moulding, pressure bag method, extrusion molding and corrugated plating, dull and stereotyped continuously shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104532598A CN102651948A (en) | 2011-12-30 | 2011-12-30 | Electrical enclosure material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104532598A CN102651948A (en) | 2011-12-30 | 2011-12-30 | Electrical enclosure material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102651948A true CN102651948A (en) | 2012-08-29 |
Family
ID=46693815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104532598A Pending CN102651948A (en) | 2011-12-30 | 2011-12-30 | Electrical enclosure material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102651948A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106664816A (en) * | 2014-06-30 | 2017-05-10 | 东丽株式会社 | Laminate and integrally molded article |
| CN107240575A (en) * | 2017-06-30 | 2017-10-10 | 信利光电股份有限公司 | A kind of SMT support plates |
| CN108795305A (en) * | 2018-05-11 | 2018-11-13 | 黑龙江省科学院石油化学研究院 | A kind of areal density functional material surface glued membrane and preparation method with low-temperature setting |
| CN110341213A (en) * | 2019-08-07 | 2019-10-18 | 青岛理工大学 | Forming process of co-curing short fiber resin-based damping composite material and formed part |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188727Y (en) * | 2008-04-25 | 2009-01-28 | 廖德南 | Shell with waterproof and shielding functions |
| CN201667765U (en) * | 2010-03-18 | 2010-12-08 | 上海科斗电子科技有限公司 | Electrical-appliance plastic shell with built-in conductive fiber |
-
2011
- 2011-12-30 CN CN2011104532598A patent/CN102651948A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201188727Y (en) * | 2008-04-25 | 2009-01-28 | 廖德南 | Shell with waterproof and shielding functions |
| CN201667765U (en) * | 2010-03-18 | 2010-12-08 | 上海科斗电子科技有限公司 | Electrical-appliance plastic shell with built-in conductive fiber |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106664816A (en) * | 2014-06-30 | 2017-05-10 | 东丽株式会社 | Laminate and integrally molded article |
| TWI663905B (en) * | 2014-06-30 | 2019-06-21 | 日商東麗股份有限公司 | Laminates and integrally formed products |
| CN107240575A (en) * | 2017-06-30 | 2017-10-10 | 信利光电股份有限公司 | A kind of SMT support plates |
| CN108795305A (en) * | 2018-05-11 | 2018-11-13 | 黑龙江省科学院石油化学研究院 | A kind of areal density functional material surface glued membrane and preparation method with low-temperature setting |
| CN110341213A (en) * | 2019-08-07 | 2019-10-18 | 青岛理工大学 | Forming process of co-curing short fiber resin-based damping composite material and formed part |
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| C12 | Rejection of a patent application after its publication | ||
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Application publication date: 20120829 |