CN104152105A - Glass fiber cotton with wave absorption property - Google Patents
Glass fiber cotton with wave absorption property Download PDFInfo
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- CN104152105A CN104152105A CN201410389504.7A CN201410389504A CN104152105A CN 104152105 A CN104152105 A CN 104152105A CN 201410389504 A CN201410389504 A CN 201410389504A CN 104152105 A CN104152105 A CN 104152105A
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- glass fiber
- wave absorption
- glass fibre
- ferrite
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Abstract
The invention discloses glass fiber cotton with wave absorption property. The glass fiber cotton is characterized by comprising glass fiber matrixes and wave absorption materials attached to the surfaces of the glass fiber matrixes. The lengths of the glass fiber matrixes are 3-8 mm, the diameters of the glass fiber matrixes are 1-6 microns, the orientations of the glass fiber matrixes are different, the glass fiber matrixes are distributed in disorder, a great number of defect structures are arranged on the surfaces of glass fibers, and the depths of the defect structures are 10-100 nm. The wave absorption materials are one or more materials selected from the group of consisting of nickel ferrite, zinc ferrite and manganese ferrite, the grain sizes of the wave absorption materials are 10-100 nm, and the weight of the wave absorption materials accounts for 10-20 percent of the total weight of the glass fiber cotton. The glass fiber cotton has the characteristics of light weight, good toughness and stable structure, has excellent thermal insulation and wave absorption performances, can be used for solving the problem about electromagnetic wave radiation, and is better applied to the fields of buildings, household appliances and the like.
Description
Technical field
The present invention relates to a kind of glass fibre cotton, particularly relate to a kind of glass fibre cotton with microwave absorbing property.
Background technology
Glass fibre cotton is a kind of fibrous light material, there is the excellent properties such as good insulating, thermal conductivity are low, good thermal shock, physical strength height, be used in widely the every field such as building, household electrical appliances, guided missile, military project, aerospace, communications and transportation, athletic sports appliance.But along with the development of modern science and technology, electromagenetic wave radiation increases day by day on the impact of environment, on airport, airplane flight cannot take off overdue because of Electromagnetic Interference; In hospital, mobile telephone often can disturb the normal work of various electronic instrument for diagnosing and curing diseases devices; On road, tall and big building reflection electromagnetic wave can cause ghost image, has had a strong impact on the mankind's daily life.Conventional glass fibre cotton does not have excellent absorbing property at present, thereby can not meet gradually the needs of the modern life.
Absorbing material can reduce or weaken electromagnetic interference, and it,, by the different loss mechanism of each component in material, changes into heat energy or other forms of energy by incident electromagnetic wave, to reach the object of inhaling ripple.In common absorbing material, performance the best of ferrite wave-absorbing material, there is the advantages such as the frequency range of absorption is high, specific absorption is high, matching thickness is thin, hertzian wave is easy to enter and decay fast, when hertzian wave is propagated from the high magnetic conductance direction of low magnetic steering in medium, the ferrite guide electromagnetic waves of high magnetic permeability, by resonance, the quantity of radiant energy of electromagnetic wave absorption in a large number, more just electromagnetic energy can be transformed into heat energy by coupling.
Adopt appropriate means that ferrite wave-absorbing material is added in glass fibre, can suitably improve the absorbing property of glass fibre, this material is applied to the electromagnetic radiation that can absorb preferably leakage in building, household electrical appliances, electronics, eliminate electromagnetic interference, for the mankind's life facilitates.
Application number is that 201110345069.4 Chinese patent discloses a kind of epoxy resin composite wave-absorbing material and preparation method thereof, belongs to electromagnetic-wave absorbent field.Described absorbing material comprises the epoxy resin of 100 parts by weight, the solidifying agent of 50～100 parts by weight, magnetic fillers, the semiconductor fills of 2～6 parts by weight and the conductive filler material of 2～5 parts by weight of 3～10 parts by weight; Described preparation method mixes after described magnetic fillers, semiconductor fills, conductive filler material are added to the thinning epoxy resin of heating, adds solidifying agent to be cured.The present invention using semiconductor fills and magnetic fillers, conductive filler material is compound uses as electromagnetic-wave absorbent, not only increased electromagnetic-wave absorbent and inhaled ripple usefulness, and effectively widened suction ripple frequency band.
Application number is that 200510095816.8 Chinese patent discloses a kind of structure-type wave-absorption composite material containing magnetic glass fiber, comprises matrix, 10～30 weight part magnetic glass fibers, 20～40 weight part carbon fibers and the 5 weight part nano-magnetic powders of 45～65 weight part epoxy resin.Its for by by carbon fiber and magnetic glass fiber unidirectional array in moulded glass steel mould; Nano-magnetic powder is dispersed in the glue of epoxy prepolymer, adds solidifying agent to obtain the mixed solution that contains nano-magnetic powder; Then the mixed solution that contains nano-magnetic powder is poured in mould, the continuous carbon fibre and the magnetic glass fiber that arrange are fully immersed in the epoxy matrix glue that contains nano-magnetic powder; Mould is carried out to vacuum outgas, then compression molding, epoxy prepolymer solidifies, and obtains the structure-type wave-absorption composite material containing magnetic glass fiber of the present invention.Magneticsubstance in this matrix material is uniformly dispersed and has concurrently and inhales ripple and high mechanical property.
Foregoing invention is all Wave suction composite material, resin is as matrix, fiber is as strongthener, there is microwave absorbing property and good mechanical property, can be for fields such as sports requsites, pipeline, shipbuilding, automobile, electronic product casings, but thermal and insulating performance is poor, toughness is not high, complicated operation, cost is higher, is used in field such as building household electrical appliances etc. and can not reaches the effect of heat insulating.The research of the Wave suction composite material taking glass fibre as matrix is also more rare.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of glass fibre cotton with microwave absorbing property is provided, and has that quality is light, a good toughness, constitutionally stable feature, has excellent thermal and insulating performance and absorbing property concurrently.
There is a glass fibre cotton for microwave absorbing property, it is characterized in that by glass fibre matrix and be attached to its surperficial absorbing material forming.The length of described glass fibre matrix is 3～8mm, and diameter is 1～6 μ m, is orientated differently, arranges in a jumble, and fiberglass surfacing has a large amount of defect structures, and the degree of depth is 100～500nm.Described absorbing material is one or more in Ni ferrite, Zn ferrite, Mn ferrite, and particle diameter is 10～100nm, and weight accounts for 10%～20% of glass fibre cotton total amount.
Advantage of the present invention:
(1), taking glass fibre cotton as matrix, ensureing, under the prerequisite of material insulation heat-insulating property, to add absorbing material, improve the absorbing property of material.This material can solve a difficult problem for electromagenetic wave radiation, is applied to better the fields such as building, household electrical appliances.
(2) glass fibre corrodes through acid solution, it is large that surfaceness becomes, it is large that specific surface area becomes, after cleaning up, put into the nanometer stock tank containing a large amount of absorbing materials, the contact area of fiber and absorbing material is also large, absorbing material is in fiber fault location stochastic distribution, and filler is combined comparatively firm with fiber.In addition, Presence of an interface polarized action between filler and filler, between filler and fiber, has strengthened absorbing property.
(3) material lightweight, Stability Analysis of Structures, cost is lower, simple to operate.
Brief description of the drawings
Fig. 1 is the heterogeneous microstructure figure after the glass fibre cotton-wadded quilt with microwave absorbing property dries.
10 glass fibre; 20 fiber surface defects; 30 absorbing materials.
Embodiment
Below in conjunction with specific embodiment, further illustrate the present invention, should understand these embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims to the amendment of the various equivalent form of values of the present invention and limit.
Embodiment 1
Have a glass fibre cotton for microwave absorbing property, be made up of glass fibre matrix and absorbing material, fiberglass surfacing has a large amount of defect structures.Wherein, the length of glass fibre matrix is 3mm, and diameter is 1 μ m, is orientated different, arrange in a jumble, fiberglass surfacing has a large amount of defect structures, and the degree of depth is 100nm, absorbing material is Ni ferrite, particle diameter 10nm, and weight has accounted for 10% of glass fibre cotton total amount.This glass fibre cotton has that quality is light, good toughness, constitutionally stable feature, has excellent heat preservation and soundproof performance and absorbing property concurrently.
Embodiment 2
Have a glass fibre cotton for microwave absorbing property, be made up of glass fibre matrix and absorbing material, fiberglass surfacing has a large amount of defect structures.Wherein, the length of glass fibre matrix is 8mm, and diameter is 6 μ m, is orientated differently, arranges in a jumble.Fiberglass surfacing has a large amount of defect structures, and the degree of depth is 500nm.Absorbing material is Zn ferrite and Mn ferrite, particle diameter 100nm, and weight has accounted for 20% of glass fibre cotton total amount.This glass fibre cotton has that quality is light, good toughness, constitutionally stable feature, has excellent heat preservation and soundproof performance and absorbing property concurrently.
Above are only two embodiments of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading the scope of protection of the invention.In every case be the content that does not depart from technical solution of the present invention, any type of simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (3)
1. there is a glass fibre cotton for microwave absorbing property, it is characterized in that by glass fibre matrix and be attached to its surperficial absorbing material forming.
2. glass fibre cotton according to claim 1, is characterized in that the length of described glass fibre is 3～8mm, and diameter is 1～6 μ m, is orientated differently, arranges in a jumble, and it is 100～500nm that fiberglass surfacing has a large amount of defect structure degree of depth.
3. glass fibre cotton according to claim 1, is characterized in that described absorbing material is one or more in Ni ferrite, Zn ferrite, Mn ferrite, and particle diameter is 10～100nm, and weight accounts for 10%～20% of glass fibre cotton total amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410389504.7A CN104152105A (en) | 2014-08-08 | 2014-08-08 | Glass fiber cotton with wave absorption property |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410389504.7A CN104152105A (en) | 2014-08-08 | 2014-08-08 | Glass fiber cotton with wave absorption property |
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| Publication Number | Publication Date |
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| CN104152105A true CN104152105A (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410389504.7A Pending CN104152105A (en) | 2014-08-08 | 2014-08-08 | Glass fiber cotton with wave absorption property |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804641A (en) * | 2022-05-30 | 2022-07-29 | 浪潮商用机器有限公司 | Electromagnetic shielding glass fiber and rigid circuit board |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135205A (en) * | 1993-11-05 | 1996-11-06 | 欧文斯科尔宁格公司 | Fiberglass Insulation Products |
| JPH11340683A (en) * | 1998-05-28 | 1999-12-10 | Nippon Muki Co Ltd | Manufacture of inorganic fiber web for electromagnetic wave absorber |
| JP2000299590A (en) * | 1999-04-16 | 2000-10-24 | Fuji Kagaku Kk | Radio wave absorbing material, radio wave absorber and rf anechoic chamber |
| JP2000299591A (en) * | 1999-04-16 | 2000-10-24 | Fuji Kagaku Kk | Radio wave absorbing material, radio wave absorber and rf anechoic chamber |
| JP2003060381A (en) * | 2001-08-10 | 2003-02-28 | Unitika Glass Fiber Co Ltd | Radio wave absorber |
| CN1781864A (en) * | 2004-11-30 | 2006-06-07 | 中国科学院理化技术研究所 | Magnetic glass fiber and preparation method thereof |
| CN1923887A (en) * | 2005-09-02 | 2007-03-07 | 中国科学院理化技术研究所 | Structural wave-absorbing composite material containing magnetic glass fiber and preparation method thereof |
| CN102504495A (en) * | 2011-11-04 | 2012-06-20 | 北京理工大学 | Epoxy resin composite wave-absorbing material and preparation method thereof |
-
2014
- 2014-08-08 CN CN201410389504.7A patent/CN104152105A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1135205A (en) * | 1993-11-05 | 1996-11-06 | 欧文斯科尔宁格公司 | Fiberglass Insulation Products |
| JPH11340683A (en) * | 1998-05-28 | 1999-12-10 | Nippon Muki Co Ltd | Manufacture of inorganic fiber web for electromagnetic wave absorber |
| JP2000299590A (en) * | 1999-04-16 | 2000-10-24 | Fuji Kagaku Kk | Radio wave absorbing material, radio wave absorber and rf anechoic chamber |
| JP2000299591A (en) * | 1999-04-16 | 2000-10-24 | Fuji Kagaku Kk | Radio wave absorbing material, radio wave absorber and rf anechoic chamber |
| JP2003060381A (en) * | 2001-08-10 | 2003-02-28 | Unitika Glass Fiber Co Ltd | Radio wave absorber |
| CN1781864A (en) * | 2004-11-30 | 2006-06-07 | 中国科学院理化技术研究所 | Magnetic glass fiber and preparation method thereof |
| CN1923887A (en) * | 2005-09-02 | 2007-03-07 | 中国科学院理化技术研究所 | Structural wave-absorbing composite material containing magnetic glass fiber and preparation method thereof |
| CN102504495A (en) * | 2011-11-04 | 2012-06-20 | 北京理工大学 | Epoxy resin composite wave-absorbing material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李茸，等: "玻璃纤维表面金属化的吸波性能研究", 《信号处理》, vol. 28, no. 12, 31 December 2012 (2012-12-31), pages 126 - 128 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114804641A (en) * | 2022-05-30 | 2022-07-29 | 浪潮商用机器有限公司 | Electromagnetic shielding glass fiber and rigid circuit board |
| CN114804641B (en) * | 2022-05-30 | 2023-05-19 | 浪潮商用机器有限公司 | An electromagnetic shielding glass fiber and rigid circuit board |
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Application publication date: 20141119 |