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CN102694260B - Fiberglass radome and preparation method thereof - Google Patents

Fiberglass radome and preparation method thereof Download PDF

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Publication number
CN102694260B
CN102694260B CN201210133411.9A CN201210133411A CN102694260B CN 102694260 B CN102694260 B CN 102694260B CN 201210133411 A CN201210133411 A CN 201210133411A CN 102694260 B CN102694260 B CN 102694260B
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China
Prior art keywords
fiber cloth
slurry
glass microballoon
fiberglass radome
radome
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Expired - Fee Related
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CN201210133411.9A
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Chinese (zh)
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CN102694260A (en
Inventor
刘若鹏
赵治亚
周添
金晶
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Kuang Chi Institute of Advanced Technology
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Kuang Chi Innovative Technology Ltd
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Abstract

The invention discloses fiberglass radome and preparation method thereof.Fiberglass radome comprises the raw material of following mass fraction: thermosetting synthesis 100 parts, tree; Glass microballoon 10.1 ~ 15 parts; 0.5 ~ 4 part, curing agent.Preparation method comprises: thermoset synthetic resin solution and glass microballoon are uniformly mixed and form required slurry; By the first fibre placement on the fiberglass radome mould got ready, first fiber cloth evenly applies described slurry, then to align in the first fiber cloth having applied slurry placement second fiber cloth, and evenly described slurry is applied in the second fiber cloth, repeat aforesaid operations until the thickness having applied multiple fiber cloth of slurry meets preset thickness; Normal temperature cure has applied multiple fiber cloth of slurry, obtains fiberglass radome.The present invention increases glass microballoon in resin, improves mechanical strength, reduces dielectric loss and cost, strengthens wave transmission effect.Surface modification treatment is done to fiber cloth and glass microballoon, strengthens adhesion to each other.

Description

Fiberglass radome and preparation method thereof
Technical field
The present invention relates to Meta Materials technical field, more particularly, relate to fiberglass radome and preparation method thereof.
Background technology
Fiberglass formal name used at school fiberglass reinforced plastics.It as reinforcing material, makes a kind of composite material of basis material using glass fibre and goods (glass cloth, band, felt, yarn etc.) thereof with synthetic resin.Because its intensity is equivalent to steel, again containing glass ingredient, also there is the such color and luster of glass, body, corrosion-resistant, electric insulation, the performance such as heat insulation, be therefore called " fiberglass ".Fiberglass refers generally to glass fiber reinforcement unsaturated polyester, epoxy resin and phenolic resin as matrix resin.Because used resin variety is different, therefore there is the title of organic toughened glass, fiber glass epoxy, phenolic fiberglass reinforced plastics.Because raw-material selection, article construction design and forming method etc. all have the larger degree of freedom, so glass fiber reinforced plastics product performance is subject to the impact of several factors.First, the intensity, chemical stability etc. of the intensity of reinforcing material, modulus of elasticity, basis material are all the decisive factors affecting fiberglass performance; Secondly, content extremely ply sequence, the direction of reinforcing material, the interfacial viscosity situation of reinforcing material and basis material is also the principal element affecting its performance.Along with industrial expansion and science and technology improve constantly and the application of fiberglass constantly expands, people are also more and more higher to fiberglass performance requirement.The dielectric constant of traditional glass steel and loss are all relatively large, limit the extensive use of fiberglass at electromagnetic arts, in order to give full play to the superiority of the complex effect of fiberglass, are necessary to carry out modification to meet the performance requirement of electromagnetic arts to fiberglass.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned traditional glass steel dielectric constant of prior art and loss large, the defect of electromagnetic arts performance requirement cannot be met, fiberglass radome that wave penetrate capability is good and preparation method thereof is provided.
The technical scheme that the present invention solves the employing of its technical problem provides a kind of fiberglass radome, comprises the raw material of following mass fraction:
Thermoset synthetic resin 100 parts;
Glass microballoon 10.1 ~ 15 parts;
0.5 ~ 4 part, curing agent.
In fiberglass radome of the present invention, in described raw material, also comprise the promoter of 0.5 ~ 2 part.
In fiberglass radome of the present invention, described glass microballoon is hollow glass micropearl, and the particle size range of described hollow glass micropearl is 10-250 micron.
In fiberglass radome of the present invention, described thermoset synthetic resin solution is made up of one or more in unsaturated polyester resin, epoxy resin, phenolic resins, furane resins, vinyl ester resin.
The present invention also provides a kind of preparation method of fiberglass radome, comprises the following steps:
S1: thermoset synthetic resin solution and glass microballoon are uniformly mixed and form required slurry, wherein glass microballoon quality is 10.1% to 15% of thermoset synthetic resin quality;
S2: by the first fibre placement on the fiberglass radome mould got ready, and evenly described slurry is applied in the first fiber cloth, then to align in the first fiber cloth having applied slurry placement second fiber cloth, and evenly described slurry is applied in the second fiber cloth, repeat aforesaid operations until the thickness having applied multiple fiber cloth of slurry meets preset thickness;
Apply multiple fiber cloth of slurry described in S3, normal temperature cure, made it be cured as one, obtain the fiberglass radome identical with described fiberglass radome mold shape.
In the preparation method of fiberglass radome of the present invention, described glass microballoon is through modification, and described modification mode is soda acid etch processes, coupling agent treatment or coating process.
In the preparation method of fiberglass radome of the present invention, before step S2, also comprise the step of multiple fiber cloth being carried out to surface modification treatment.
The present invention also provides the preparation method of another kind of fiberglass radome, for the preparation of fiberglass radome mentioned above, comprises the following steps:
S1: thermoset synthetic resin solution and glass microballoon are uniformly mixed and form required slurry, wherein glass microballoon quality is 10.1% to 15% of thermoset synthetic resin quality;
S2: by the first fibre placement on the fiberglass radome mould got ready, and evenly described slurry is applied in the first fiber cloth, then to align in the first fiber cloth having applied slurry placement second fiber cloth, and evenly described slurry is applied in the second fiber cloth, repeat aforesaid operations until the thickness having applied multiple fiber cloth of slurry meets preset thickness;
Apply multiple fiber cloth of slurry described in S3, normal temperature cure, made it be cured as one, obtain the radome assembly identical with described fiberglass radome mold shape;
S4: connect multiple described radome assembly to form the fiberglass radome with given shape by multiple connector.
In the preparation method of fiberglass radome of the present invention, described glass microballoon is through modification, and described modification mode is soda acid etch processes, coupling agent treatment or coating process.
In the preparation method of fiberglass radome of the present invention, before step S2, also comprise the step of multiple fiber cloth being carried out to surface modification treatment.
Adopting technical scheme of the present invention to have following beneficial effect: by increasing the filler of such as glass microballoon in thermoset synthetic resin, mechanical property can not only be improved, increase toughness, reducing costs, but also can dielectric loss be reduced.In addition surface modification treatment is carried out to fiber cloth, thus strengthen the adhesion between resin and fiber cloth; And modification is carried out to glass microballoon, improve the interface binding power of glass microballoon and interlaminar resin and the dispersiveness of glass microballoon, strengthen the adhesion between resin and glass microballoon, improve the wave penetrate capability of radome.
Accompanying drawing explanation
Fig. 1 is the process chart of the preparation method of the fiberglass radome of foundation one embodiment of the invention;
Fig. 2 is the process chart of the preparation method of the fiberglass radome of the present invention of foundation another embodiment of the present invention.
Embodiment
The invention provides a kind of fiberglass radome, comprise the raw material of following mass fraction:
Thermoset synthetic resin 100 parts;
Glass microballoon 10.1 ~ 15 parts;
Curing agent 0.5-4 part.
In a preferred embodiment, in fiberglass, the number of glass microballoon can elect 10.1 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14 parts, 14.5 parts, 15 parts as.Choosing of thermoset synthetic resin can see mentioned above, preferred unsaturated polyester resin, epoxy resin etc.Curing agent and promoter can select suitable curing system according to resin.
Test the present invention adopts electric property and the mechanical performance of the Beautified radome obtained during the glass microballoon of different quality ratio, and test frequency is 1.7GHz, and thickness is 4mm, and its result is as following table:
As can be seen from the above results, when to account for thermoset synthetic resin mass percent be 10.1% ~ 15% to glass microballoon quality, its mechanical performance and electric property are all better.Wherein glass microballoon quality accounts for when thermoset synthetic resin mass percent is 11.1%-14% is preferred version of the present invention.
In the present invention, in raw material, also comprise the promoter of 0.5 ~ 2 part, to accelerate radome solidification.
Glass microballoon is a kind of size small (typical particle size range is 10-250 micron) and the hollow glass spheroid of lightweight, primarily of the composition such as silicon dioxide and alundum (Al2O3), there is the excellent properties such as low heat conduction, sound insulation, high dispersive, electrical insulating property and Heat stability is good.Glass microballoon is cellular after adding described thermoset synthetic resin solution, thus improve the porosity of described thermoset synthetic resin solution, its dielectric constant and loss angle tangent are reduced and makes the rigidity of the fiberglass finally prepared and hardness improve simultaneously.In an embodiment of the present invention, glass microballoon comprises hollow glass micropearl, and particle size range is 10-180 micron.
Thermoset synthetic resin solution can comprise in unsaturated polyester resin, epoxy resin, phenolic resins, furane resins, vinyl ester resin any one or multiple.Thermoset synthetic resin solution can add other auxiliary material such as initator, promoter, fire retardant, solvent depending on concrete condition.
Different resinous type and consumption, can select different curing systems.In the present embodiment, described thermoset synthetic resin solution is that raw material is prepared with unsaturated polyester resin, can adopt imidazoles curing system or amine-type cure system.
Certainly, except mentioned component, colouring agent can be increased according to needs, such as look female powder etc.
Fig. 1 is the process chart of the preparation method of fiberglass radome of the present invention, and for the preparation of the preparation method of fiberglass radome mentioned above, the preparation method of fiberglass radome comprises the steps:
S11: thermoset synthetic resin solution and glass microballoon are uniformly mixed and form required slurry, wherein glass microballoon quality is 10.1% to 15% of thermoset synthetic resin quality.
The method being uniformly mixed described thermoset synthetic resin and glass microballoon can be churned mechanically mode, such as, utilize the mixer not producing whirlpool, also can adopt the artificial mode stirred, as long as make glass microballoon and thermoset synthetic resin mix.
In order to the dispersiveness of the interface binding power and glass microballoon that improve glass microballoon and interlaminar resin, strengthen the adhesion between resin and glass microballoon, need to carry out modification to glass microballoon, processing mode can be soda acid etch processes, coupling agent treatment or coating process.
S12: by the first fibre placement on the fiberglass radome mould got ready, and evenly described slurry is applied in the first fiber cloth, then to align in the first fiber cloth having applied slurry placement second fiber cloth, and evenly described slurry is applied in the second fiber cloth, repeat aforesaid operations until the thickness having applied multiple fiber cloth of slurry meets preset thickness;
Will apply release agent on fiber reinforced plastic mold before placing fiber cloth, so that after hardening, glass fiber reinforced plastics product departs from from mould.
Here fiber cloth can be glass fibre, carbon fiber, superhigh molecular weight polyethylene fibers, aramid fiber, quartz fibre etc.Fiber cloth can also be other form, such as fabric strip, fibrofelt, silvalin etc.
In an embodiment of the present invention, in order to strengthen the adhesion between resin and fiber cloth, before step S12, also comprise the step of multiple fiber cloth being carried out to surface modification treatment, surface treatment mode can be soda acid etch processes, coupling agent treatment or coating process.
Here fiberglass radome mould is the mould that we need the fiberglass radome made.The applied environment of fiberglass radome is different, and corresponding preset thickness is also just different, if high to requirement of mechanical strength, then thickness requirements is just high.For the fiberglass radome that such as 4mm is thick, can use 5 ~ 10 layers of fiber cloth, certainly concrete use how many fiber cloth, also will consider the actual (real) thickness of used fiber cloth.
Apply multiple fiber cloth of slurry described in S13, normal temperature cure, made it be cured as one, obtain the fiberglass radome identical with fiberglass radome mold shape.
Fig. 2 shows the preparation method of process chart for the preparation of fiberglass radome mentioned above of the preparation method of the fiberglass radome of another embodiment of the present invention, and the preparation method of fiberglass radome comprises the steps:
S21: thermoset synthetic resin solution and glass microballoon are uniformly mixed and form required slurry, wherein glass microballoon quality is 10.1% to 15% of thermoset synthetic resin quality;
S22: by the first fibre placement on the fiberglass radome mould got ready, and evenly described slurry is applied in the first fiber cloth, then to align in the first fiber cloth having applied slurry placement second fiber cloth, and evenly described slurry is applied in the second fiber cloth, repeat aforesaid operations until the thickness having applied multiple fiber cloth of slurry meets preset thickness.
In an embodiment of the present invention, in order to strengthen the adhesion between resin and fiber cloth, before step S22, also comprise the step of multiple fiber cloth being carried out to surface modification treatment, surface treatment mode can be soda acid etch processes, coupling agent treatment or coating process.
Apply multiple fiber cloth of slurry described in S23, normal temperature cure, made it be cured as one, obtain the radome assembly identical with described fiberglass radome mold shape;
S24: connect multiple described radome assembly to form the fiberglass radome with given shape by multiple connector.
Connector can adopt metal connecting piece or plastic fastening as required.Because the mechanical strength of fiberglass self is enough high, plastic fastening therefore can be adopted to connect each radome assembly, replace metal connecting piece.Plastic fastening can alleviate the weight of fiberglass radome, and greatly can reduce the impact of metal connecting piece on aerial signal loss.In the present invention, plastic fastening can adopt POM (Polyformaldehyde) or ABS (AcrylonitrileButadieneStyrene) plastics to make.
The fiberglass radome adopting preparation method of the present invention to manufacture, has good mechanical strength, reduces dielectric loss, improve mechanical property, reduce cost.The radome of preparation has good wave penetrate capability, and loss is less, can be good at the antenna protected therein, increases the useful life of antenna.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, also can make a lot of form, these all belong within protection of the present invention.

Claims (5)

1. a fiberglass radome, is characterized in that, comprises the raw material of following mass fraction:
Thermoset synthetic resin 100 parts;
Glass microballoon 10.1 ~ 15 parts;
0.5 ~ 4 part, curing agent;
Described glass microballoon is through modification, and described modification mode is soda acid etch processes, coupling agent treatment or coating process;
Described glass microballoon is hollow glass micropearl, and the particle size range of described hollow glass micropearl is 10-250 micron.
2. fiberglass radome as claimed in claim 1, is characterized in that, also comprise the promoter that mass fraction is 0.5 ~ 2 part in described raw material.
3. fiberglass radome as claimed in claim 1, it is characterized in that, described thermoset synthetic resin is made up of one or more in unsaturated polyester resin, epoxy resin, phenolic resins, furane resins, vinyl ester resin.
4. a preparation method for fiberglass radome, for the preparation of the fiberglass radome described in any one of claims 1 to 3, is characterized in that, comprises the following steps:
S1: thermoset synthetic resin solution and glass microballoon are uniformly mixed and form required slurry, wherein glass microballoon quality is 10.1% to 15% of thermoset synthetic resin quality;
S2: by the first fibre placement on the fiberglass radome mould got ready, and evenly described slurry is applied in the first fiber cloth, then to align in the first fiber cloth having applied slurry placement second fiber cloth, and evenly described slurry is applied in the second fiber cloth, repeat aforesaid operations until the thickness having applied multiple fiber cloth of slurry meets preset thickness;
Apply multiple fiber cloth of slurry described in S3, normal temperature cure, made it be cured as one, obtain the fiberglass radome identical with described fiberglass radome mold shape;
Described glass microballoon is through modification, and described modification mode is soda acid etch processes, coupling agent treatment or coating process;
The step of multiple fiber cloth being carried out to surface modification treatment was also comprised before step S2.
5. a preparation method for fiberglass radome, for the preparation of the fiberglass radome described in any one of claims 1 to 3, is characterized in that, comprises the following steps:
S1: thermoset synthetic resin solution and glass microballoon are uniformly mixed and form required slurry, wherein glass microballoon quality is 10.1% to 15% of thermoset synthetic resin quality;
S2: by the first fibre placement on the fiberglass radome mould got ready, and evenly described slurry is applied in the first fiber cloth, then to align in the first fiber cloth having applied slurry placement second fiber cloth, and evenly described slurry is applied in the second fiber cloth, repeat aforesaid operations until the thickness having applied multiple fiber cloth of slurry meets preset thickness;
Apply multiple fiber cloth of slurry described in S3, normal temperature cure, made it be cured as one, obtain the radome assembly identical with described fiberglass radome mold shape;
S4: connect multiple described radome assembly to form the fiberglass radome with given shape by multiple connector;
Described glass microballoon is through modification, and described modification mode is soda acid etch processes, coupling agent treatment or coating process;
The step of multiple fiber cloth being carried out to surface modification treatment was also comprised before step S2.
CN201210133411.9A 2012-05-02 2012-05-02 Fiberglass radome and preparation method thereof Expired - Fee Related CN102694260B (en)

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CN116061483A (en) * 2023-02-09 2023-05-05 深圳市赛尔美电子科技有限公司 Manufacturing method of heat insulation shell and heat insulation shell

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CN101609928A (en) * 2009-07-16 2009-12-23 南京华格电汽塑业有限公司 A kind of fiberglass radome of using the glass microballoon modification and preparation method thereof

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CN101004230A (en) * 2006-01-18 2007-07-25 曾建祥 Fiber wrapped pipeline made from composite material
CN101609928A (en) * 2009-07-16 2009-12-23 南京华格电汽塑业有限公司 A kind of fiberglass radome of using the glass microballoon modification and preparation method thereof

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