阅读说明：本技术 高效能电磁屏蔽服布料及电磁屏蔽服 (High-efficiency electromagnetic shielding clothes fabric and electromagnetic shielding clothes ) 是由 陶益杰 于 2019-08-26 设计创作，主要内容包括：本发明公开一种高效能电磁屏蔽服布料及电磁屏蔽服,该电磁屏蔽服布料由功能复合层和内衬组成；所述内衬可拆卸的连接在所述功能布料的内侧；所述功能复合层由导电布、疏水保护布和吸波材料层组成,导电布、疏水保护布和吸波材料层叠置并固定连接,且疏水保护布位于所述导电布与吸波材料层之间；该电磁屏蔽服由上述所述电磁屏蔽服布料制作而成。本发明提供的电磁屏蔽服布料和电磁屏蔽服能有效降低低频电磁波的渗入,在1～40GHz频段范围内,垂直入射屏蔽效能达到50dB以上,平均吸收衰减效能达到10dB以上,针对垂直与斜入射电磁波均具有良好的电磁屏蔽效能,并且具有轻薄、透气、穿脱方便等,适用于人体穿着。(The invention discloses a high-efficiency electromagnetic shielding clothes fabric and an electromagnetic shielding clothes, wherein the electromagnetic shielding clothes fabric is composed of a functional composite layer and a lining; the lining is detachably connected to the inner side of the functional cloth; the functional composite layer consists of conductive cloth, hydrophobic protective cloth and a wave-absorbing material layer, the conductive cloth, the hydrophobic protective cloth and the wave-absorbing material layer are superposed and fixedly connected, and the hydrophobic protective cloth is positioned between the conductive cloth and the wave-absorbing material layer; the electromagnetic shielding clothes are made of the electromagnetic shielding clothes fabric. The electromagnetic shielding clothes fabric and the electromagnetic shielding clothes provided by the invention can effectively reduce the permeation of low-frequency electromagnetic waves, have the vertical incidence shielding effectiveness of more than 50dB and the average absorption attenuation effectiveness of more than 10dB within the frequency band range of 1-40 GHz, have good electromagnetic shielding effectiveness for vertical and oblique incidence electromagnetic waves, are light and thin, breathable, convenient to put on and take off and the like, and are suitable for being worn by human bodies.)

1. A high-efficiency electromagnetic shielding clothes fabric is characterized in that the electromagnetic shielding clothes fabric consists of a functional composite layer and a lining; the lining is detachably connected to the inner side of the functional cloth;

the functional composite layer consists of conductive cloth, hydrophobic protective cloth and a wave-absorbing material layer, the conductive cloth, the hydrophobic protective cloth and the wave-absorbing material layer are superposed and fixedly connected, and the hydrophobic protective cloth is positioned between the conductive cloth and the wave-absorbing material layer; the side close to the conductive cloth is the outer side of the functional cloth, and the side close to the wave-absorbing material layer is the inner side of the functional cloth.

2. The high performance electromagnetic shielding cloth according to claim 1, wherein the conductive cloth is a metal fiber cloth with a nickel metal layer plated on the surface.

3. The high performance electromagnetic shielding cloth according to claim 1, wherein the surface sheet resistance of the conductive cloth is 0.01 to 0.1 Ω/□.

4. The high performance electromagnetic shielding cloth according to claim 1, wherein the hydrophobic protective cloth is a polyurethane cloth coated with a silicone coating on the surface thereof.

5. The high-performance electromagnetic shielding cloth according to claim 1, wherein the hydrophobic protection cloth has a surface hydrophobic angle of 95-120 ° and a density of 30-70 g/m²。

6. The high-efficiency electromagnetic shielding clothes cloth of claim 1, wherein the wave-absorbing material layer is made of nano-absorbent and polyurethane matrix by foaming.

7. The high-performance electromagnetic shielding clothes cloth of claim 1, wherein the surface density of the wave-absorbing material layer is 500-1200 g/m²The thickness is 5-10 mm, and the sheet resistance is 500-4000 omega/□; the nano absorbent is carbon slurry with solid content of 30-50%.

8. The high performance electromagnetic shielding cloth material of claim 1 wherein the inner lining is a polyester cloth material.

9. A high performance electromagnetic shielding clothes, wherein the electromagnetic shielding clothes is made of the high performance electromagnetic shielding clothes cloth according to any one of claims 1 to 8.

10. The high performance electromagnetic shielding garment of claim 9 wherein the electromagnetic shielding garment comprises a top, undergarments, underpants, and gloves; the total weight of the electromagnetic shielding clothes is below 3 kg; the interface of the electromagnetic shielding clothes is designed to be tightly attached to a human body; the interface comprises a coat neckline, coat cuffs, a coat hem, a lower trousers waist, a lower trousers opening, a lower trousers waist and a glove sleeve opening.

Technical Field

The invention relates to the technical field of electromagnetic shielding, in particular to high-efficiency electromagnetic shielding clothes cloth and electromagnetic shielding clothes.

Background

In recent years, electromagnetic wave radiation pollution has become a major concern field, and a part of work posts face electromagnetic radiation pollution with high power, high energy and wide frequency band, and have serious harm to the bodies of related workers. Relevant researches show that the long-term exposure to electromagnetic environment causes serious damage to vulnerable systems of human, such as cardiovascular and reproductive systems.

The traditional electromagnetic shielding clothes are mainly made of single conductive cloth, the shielding performance of the traditional electromagnetic shielding clothes for high-frequency electromagnetic waves is poor, if gaps exist in the made shielding clothes, the electromagnetic waves in all directions can easily penetrate into the shielding clothes, at the moment, the penetrated electromagnetic waves are reflected and oscillated for many times between the shielding clothes and a human body and are finally absorbed by the human body, and therefore the safety of the human body is seriously damaged. Aiming at the problems of the traditional electromagnetic shielding clothes, the prior art needs to be improved.

Disclosure of Invention

The invention provides high-efficiency electromagnetic shielding clothes cloth and electromagnetic shielding clothes, which are used for overcoming the defects of poor shielding performance on high-frequency electromagnetic waves and the like in the prior art and achieving good shielding effect on electromagnetic waves with wide frequency bands, high power, large energy and all directions.

In order to achieve the purpose, the invention provides a high-efficiency electromagnetic shielding clothes fabric, which consists of a functional composite layer and a lining; the lining is detachably connected to the inner side of the functional cloth;

the functional composite layer consists of conductive cloth, hydrophobic protective cloth and a wave-absorbing material layer, the conductive cloth, the hydrophobic protective cloth and the wave-absorbing material layer are superposed and fixedly connected, and the hydrophobic protective cloth is positioned between the conductive cloth and the wave-absorbing material layer; the side close to the conductive cloth is the outer side of the functional cloth, and the side close to the wave-absorbing material layer is the inner side of the functional cloth.

Preferably, the conductive cloth is a metal fiber cloth with a nickel metal layer plated on the surface.

Preferably, the surface square resistance of the conductive cloth is 0.01-0.1 omega/□.

Preferably, the hydrophobic protective cloth is a polyurethane cloth coated with a siloxane coating on the surface.

Preferably, the surface hydrophobic angle of the hydrophobic protection cloth is 95-120 degrees, and the density is 30-70 g/m²。

Preferably, the wave-absorbing material layer is made by foaming a nano absorbent and a polyurethane matrix.

Preferably, the surface density of the wave-absorbing material layer is 500-1200 g/m²The thickness is 5-10 mm, and the sheet resistance is 500-4000 omega/□; the nano absorbent is carbon slurry with solid content of 30-50%.

Preferably, the liner is a polyester cloth.

In order to achieve the purpose, the invention further provides a high-efficiency electromagnetic shielding garment, which is made of the high-efficiency electromagnetic shielding garment fabric.

Preferably, the electromagnetic shielding clothes comprise a coat, underpants and gloves; the total weight of the electromagnetic shielding clothes is below 3 kg; the interface of the electromagnetic shielding clothes is designed to be tightly attached to a human body; the interface comprises a coat neckline, coat cuffs, a coat hem, a lower trousers waist, a lower trousers opening, a lower trousers waist and a glove sleeve opening.

Compared with the prior art, the invention has the beneficial effects that:

1. the electromagnetic shielding clothes fabric provided by the invention consists of a functional composite layer and a lining; the lining is detachably connected to the inner side of the functional cloth; the functional composite layer consists of conductive cloth, hydrophobic protective cloth and a wave-absorbing material layer, the conductive cloth, the hydrophobic protective cloth and the wave-absorbing material layer are superposed and fixedly connected, and the hydrophobic protective cloth is positioned between the conductive cloth and the wave-absorbing material layer; the side close to the conductive cloth is the outer side of the functional cloth, and the side close to the wave-absorbing material layer is the inner side of the functional cloth. The electromagnetic shielding clothing fabric is used for shielding electromagnetic waves through the conductive fabric and the wave-absorbing material layer; low-frequency (below 1 GHz) electromagnetic waves are mainly shielded by a reflection mechanism of the outer-layer conductive cloth, and a small amount of low-frequency electromagnetic waves penetrating through the conductive cloth can be absorbed by the wave-absorbing material layer; the electromagnetic wave of high frequency (1 ~ 40GHz) mainly utilizes the reflection of conductive cloth and the absorption of absorbing material layer to realize jointly, and conductive cloth can reflect the high frequency electromagnetic wave earlier, but because the penetrating power of high frequency electromagnetic wave is strong, has partly high frequency electromagnetic wave to see through conductive cloth, and absorbing material layer can absorb this part high frequency electromagnetic wave that sees through conductive cloth this moment to effectively protect each frequency channel electromagnetic wave to the harm of human body, make electromagnetic shielding clothes cloth has advantages such as shielding efficiency height, has good shielding effect to wide-band, high power, energy is big, omnidirectional electromagnetic wave. Meanwhile, the hydrophobic protection cloth in the electromagnetic shielding clothing cloth material can play a role in water resistance, can also play a role in protecting the wave absorbing material layer, and prolongs the service life of the electromagnetic shielding clothing cloth material. In addition, electromagnetic shield clothing cloth has designed the inside lining, increases electromagnetic shield clothing cloth's pliability and comfort level, and this inside lining is connected for detachable simultaneously the interior survey of function cloth is convenient for the washing and the change of inside lining.

2. The electromagnetic shielding clothes provided by the invention are made of the high-efficiency electromagnetic shielding clothes cloth, so that the electromagnetic shielding clothes have the advantages of high shielding efficiency and the like, and have good shielding effect on electromagnetic waves with wide frequency band, high power, large energy and all directions. Within the frequency band range of 1-40 GHz, the vertical incidence shielding effectiveness of the electromagnetic shielding clothes reaches more than 50dB, the average absorption attenuation effectiveness reaches more than 10dB, the electromagnetic shielding clothes have good electromagnetic shielding effectiveness aiming at vertical incidence electromagnetic waves and oblique incidence electromagnetic waves, and have the characteristics of lightness, thinness, air permeability, convenience in wearing and taking off and the like, and are suitable for being worn by human bodies.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electromagnetic shielding clothing fabric according to an embodiment of the present invention;

fig. 2 is a schematic front structural view of an electromagnetic shielding garment according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a transmittance testing system according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a reflectivity testing system according to an embodiment of the present invention;

FIG. 5a is a diagram showing the shielding and absorption attenuation performance of the wave-absorbing material layer in the embodiment of the invention for electromagnetic waves with frequency of 1-18 GHz;

FIG. 5b is a diagram illustrating the shielding, absorption and attenuation performance of the wave-absorbing material layer in the embodiment of the present invention for electromagnetic waves with a frequency of 26.5 to 40 GHz;

FIG. 6a is a diagram illustrating the shielding performance of the electromagnetic shielding clothes according to the embodiment of the present invention for electromagnetic waves with frequencies of 8-18 GHz;

FIG. 6b is a diagram illustrating the shielding performance of the electromagnetic shielding clothes according to the embodiment of the present invention for electromagnetic waves with frequencies of 18-40 GHz.

The reference numbers illustrate: 101 conductive cloth; 102 hydrophobic protective cloth; 103 wave-absorbing material layer; 2, lining; 3, coating the jacket; 4, putting trousers; 5, underpants; 6, gloves; 301, a collar of the jacket; 302 a jacket cuff; 303, putting the upper garment down; 401 putting trousers waist; 402 lower trouser leg opening; 501, the waist of the underpants; 601 glove looping; 7, a vector network analyzer; 8, a cable; 9 an electromagnetic wave receiving end; 10 an electromagnetic wave transmitting end; 11 wave-absorbing foam panel; 12 a network analyzer; 13 a receiving antenna; 14 a transmitting antenna; 15 an absorbent material; a 16 aluminum plate substrate; 17 test the samples.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The drugs/reagents used are all commercially available without specific mention.

The invention provides a high-efficiency electromagnetic shielding clothes fabric, which consists of a functional composite layer and a lining 2; the lining 2 is detachably connected to the inner side of the functional cloth, so that the lining 2 is convenient to replace and clean;

the functional composite layer consists of conductive cloth 101, hydrophobic protective cloth 102 and a wave-absorbing material layer 103, wherein the conductive cloth 101, the hydrophobic protective cloth 102 and the wave-absorbing material layer 103 are superposed and fixedly connected, and the hydrophobic protective cloth 102 is positioned between the conductive cloth 101 and the wave-absorbing material layer 103; the side close to the conductive cloth 101 is the outer side of the functional cloth, and the side close to the wave-absorbing material layer 103 is the inner side of the functional cloth.

Preferably, the fixed connection may be sewing, gluing, or the like; the detachable connection includes a snap-fit manner, etc.

Preferably, the conductive cloth 101 is a metal fiber cloth with a nickel metal layer plated on the surface, which is beneficial to the reflection shielding of low-frequency (below 1 GHz) electromagnetic waves.

Preferably, the surface sheet resistance of the conductive cloth 101 is 0.01-0.1 Ω/□, which is beneficial to the reflection shielding of low-frequency (below 1 GHz) electromagnetic waves.

Preferably, the hydrophobic protective cloth 102 is a polyurethane cloth coated with a siloxane coating on the surface, and can protect the inner wave-absorbing material layer 103 to prevent the wave-absorbing material layer 103 from being damaged.

Preferably, the polysiloxane coating weight is 15g/m²(ii) a The total weight of the hydrophobic protective cloth 102 was 45g/m²。

Preferably, the surface hydrophobic angle of the hydrophobic protective cloth 102 is 95-120 degrees, and the density is 30-70 g/m²So as to be beneficial to the hydrophobic protective cloth to play the hydrophobic role.

Preferably, the wave-absorbing material layer 103 is made of a nano absorbent and a polyurethane matrix by foaming, so that the absorption of high-frequency (1-40 GHz) electromagnetic waves is facilitated, and the shielding effectiveness of low-frequency electromagnetic waves is improved.

Preferably, the surface density of the wave-absorbing material layer 103 is 500-1200 g/m²The thickness is 5-10 mm, and the sheet resistance is 500-4000 omega/□; the nano absorbent is carbon slurry with solid content of 30-50%. So as to ensure good shielding effect on electromagnetic waves with wide frequency band, high power, large energy and all directions.

Preferably, the lining 2 is made of polyester fabric, and is used for improving the comfort of the shielding clothing fabric and protecting the functional fabric to a certain extent.

Preferably, the areal density of the liner 2 is about 30g/m²。

The invention also provides a high-efficiency electromagnetic shielding garment which is made of the high-efficiency electromagnetic shielding garment fabric.

The electromagnetic shielding clothes have good shielding effect on electromagnetic waves with wide frequency band, high power, large energy and all directions; meanwhile, the detachable design of the liner 2 facilitates the replacement and cleaning thereof; furthermore, the design of the inner lining 2 increases the wearing comfort of the electromagnetic shielding suit.

Preferably, the electromagnetic shielding clothes comprise a coat 3, underpants 4, underpants 5 and gloves 6; the total weight of the electromagnetic shielding clothes is below 3kg, and the weight of a single coat or trousers or underpants or gloves is below 2kg, so that the load feeling is reduced, and the wearing comfort is improved; the interface of the electromagnetic shielding clothes is designed to be tightly attached to a human body, so that the tightness and the attaching degree of the electromagnetic shielding clothes combined with the human body can be conveniently adjusted, gaps of parts in contact with the human body are reduced, low-frequency electromagnetic waves are difficult to enter the inside of the shielding clothes, and meanwhile, the entering amount of high-frequency electromagnetic waves is as small as possible; the interface comprises any places communicated with the outside, such as a coat collar 301, a coat cuff 302, a coat hem 303, a lower trousers waist 401, a lower trousers pipe opening 402, a underwear waist 501, a glove sleeve opening 601 and the like.

Preferably, the gap between the interface and the human body reaches millimeter level, so that the gap between the shielding clothes and the human body is reduced, and the permeation of low-frequency electromagnetic waves is reduced.

Preferably, the human body-clinging design comprises modes such as elasticity, nylon buckles and the like.

Example 1

The embodiment provides a high-performance electromagnetic shielding clothes fabric and an electromagnetic shielding clothes.

(1) An electromagnetic shielding clothing fabric, as shown in fig. 1, includes a functional fabric and an inner liner 2; the lining 2 is detachably connected to the inner side of the functional cloth in a hasp mode; the functional cloth comprises conductive cloth 101, hydrophobic protective cloth 102 and a wave-absorbing material layer 103; the hydrophobic protective cloth 102 is positioned between the conductive cloth 101 and the wave-absorbing material layer 103; the side close to the conductive cloth 101 is the outer side of the functional cloth, and the side close to the wave-absorbing material layer 103 is the inner side of the functional cloth.

The conductive cloth 101 adopts stainless steel fiber blended polyester fiber cloth as a substrate, the surface is plated with a nickel-copper plating layer, the surface sheet resistance is 0.022 omega/□, and the shielding effectiveness is 35-40 dB.

The hydrophobic protective cloth 102 is formed by coating a thin polysiloxane coating with low surface energy on the surface of polyurethane clothThe amount is 15g/m²The surface hydrophobic angle of the hydrophobic protection cloth is 95-120 degrees, and the density is 30-70 g/m²The total weight of the hydrophobic protective cloth is 45g/m²。

The core material of the wave-absorbing material layer 103 is prepared by adding 30g of polyurethane slurry containing 40% of carbon slurry into 100g of polyurethane foam material, cutting the mixture into two 4mm wave-absorbing material layers 103 after foam molding, wherein the surface density is 650g/m²And the sheet resistance of the wave-absorbing material layer is 500-4000 omega/□.

The lining 2 is made of common polyester cloth and has the surface density of about 30g/m²。

(2) The electromagnetic shielding clothes are manufactured by the electromagnetic shielding clothes cloth prepared in the step (1) as shown in fig. 2, and comprise an upper garment 3, lower pants 4, underpants 5 and gloves 6; the total weight of the electromagnetic shielding clothes is below 4kg, and the weight of a single upper garment 3 or lower trousers 4 or underpants 5 or gloves 6 is below 2 kg.

The interface of the electromagnetic shielding clothes is designed to be tightly attached to a human body, and is specifically in a tightness mode; the interface comprises a coat collar 301, a coat cuff 302, a coat hem 303, a lower pants waist 401, a lower pants pipe orifice 402, a pants waist 501 and a glove opening 601. The gap between the shielding clothes and the human body is 1-3 mm.

1. The electromagnetic shielding clothes prepared in this embodiment were subjected to a transmittance shielding effectiveness test:

cutting the electromagnetic shielding clothes into blocks of 18 x 18cm according to requirements; the testing device is shown in fig. 3 and mainly comprises a vector network analysis instrument 7; a cable 8; an electromagnetic wave receiving end 9; an electromagnetic wave emitting end 10; a face sheet of absorbent foam 11.

The test results are shown in fig. 6a and 6b, and it can be seen from fig. 6a and 6b that the electromagnetic shielding effectiveness of the electromagnetic shielding clothes for 8-40 GHz electromagnetic waves reaches more than 50dB, i.e. only one hundred thousand of electromagnetic waves can penetrate through the electromagnetic shielding clothes from the front, which shows that the electromagnetic shielding clothes provided by the present invention has a good shielding effect for electromagnetic waves with a wide frequency band, high power, large energy and all directions.

2. The wave-absorbing material layer 103 in the electromagnetic shielding clothing fabric provided in this embodiment is tested for the electromagnetic wave absorption attenuation performance:

the testing device is shown in fig. 4 and mainly comprises a network analyzer 12; a receiving antenna 13; a transmitting antenna 14; an absorbent material 15; an aluminum plate substrate 16; sample 17 was tested.

The test results are shown in fig. 5a and 5b, and as can be seen from fig. 5a and 5b, the average wave-absorbing performance of the wave-absorbing material layer 103 in the electromagnetic shielding clothing cloth material at 1-18 GHz reaches 10dB, and a strong resonance absorption peak exists at 5.8GHz, which reaches 18 dB; the average wave-absorbing performance of the wave-absorbing material layer 103 at 26.5-40 GHz reaches more than 15dB, which shows that the adopted wave-absorbing material layer 103 has good absorption and attenuation effects on electromagnetic waves and can meet the requirements of shielding clothes on the absorption performance of the electromagnetic waves.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.