CN101942185A - Glass fiber reinforced plastic antenna housing modified by aluminum hydroxide and preparation method thereof - Google Patents

Glass fiber reinforced plastic antenna housing modified by aluminum hydroxide and preparation method thereof Download PDF

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Publication number
CN101942185A
CN101942185A CN2010102776536A CN201010277653A CN101942185A CN 101942185 A CN101942185 A CN 101942185A CN 2010102776536 A CN2010102776536 A CN 2010102776536A CN 201010277653 A CN201010277653 A CN 201010277653A CN 101942185 A CN101942185 A CN 101942185A
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China
Prior art keywords
aluminium hydroxide
modification
parts
fiberglass radome
aluminum hydroxide
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Application number
CN2010102776536A
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Chinese (zh)
Inventor
王文柏
徐国忠
李庆喜
李萍萍
叶枫韬
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Nanjing Huage Electronics and Automobile Plastic Industry Co Ltd
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Nanjing Huage Electronics and Automobile Plastic Industry Co Ltd
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Application filed by Nanjing Huage Electronics and Automobile Plastic Industry Co Ltd filed Critical Nanjing Huage Electronics and Automobile Plastic Industry Co Ltd
Priority to CN2010102776536A priority Critical patent/CN101942185A/en
Publication of CN101942185A publication Critical patent/CN101942185A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92523—Force; Tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92561—Time, e.g. start, termination, duration or interruption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92933—Conveying, transporting or storage of articles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Abstract

The invention discloses a glass fiber reinforced plastic antenna housing modified by aluminum hydroxide, which has the advantages of reducing DK value thereof and improving the wave penetrating property of the product. The glass fiber reinforced plastic antenna housing modified by aluminum hydroxide is prepared from the following raw materials in part by weight: 100 parts of unsaturated polyester, 5 to 30 parts of aluminum hydroxide, 0.5 to 2 parts of releasing agent, 0.5 to 2 parts of curing agent and 0.5 to 2 parts of accelerant.

Description

A kind of with aluminium hydroxide modified glass steel radome and preparation method thereof
Technical field
The present invention relates to a kind of fiberglass radome and preparation method thereof, more specifically to a kind of fiberglass radome with the modification of aluminium hydroxide material and preparation method thereof.
Background technology
Fiberglass radome is owing to have a good weatherability, insulation, in light weight, intensity is high, dimensional stabilizing and production efficiency advantages of higher, has been widely used in wireless and a plurality of fields such as protecting sheathing antenna of mobile communication base station at present.Fiberglass radome all is that main raw material adds filler and relevant auxiliary agent extrusion moulding again with the unsaturated polyester generally, unsaturated polyester (english abbreviation UP) mainly is meant the resin by dibasic alcohol and all or part of unsaturated dibasic acid condensation polymerization gained, better thermotolerance, insulativity, water-fast and chemically-resistant, ageing-resistant are arranged usually, and the resin after the enhancing then has very high mechanical properties.The general CaCO that uses in traditional glass steel pultrusion traditional technology 3As filler, reach between the 8.3-8.8 because of the DK value of himself is higher, the fiberglass radome product DK value of producing is higher, can reduce the wave penetrate capability of radome product, makes that the tick decay is bigger.Reduce the DK value of fiberglass radome, the wave penetrate capability that improves product just need carry out modification to product.
Aluminium hydroxide is a kind of fine white crystalline powder, be from the intermediate product of bauxite by Bayer process (Bayer) explained hereafter metallic aluminium, have wide range of applications as additive, himself have lower DK value between 2.5-5.6, have delicate transparent feel, have original feature, aluminium hydroxide also has fire retardation simultaneously.Finding by retrieval also has no talent in the fiberglass radome field at present uses aluminium hydroxide as properties-correcting agent, if this specific character of aluminium hydroxide can be introduced in fibre-glass epoxy antenna cover material then can solve CaCO 3As filler and DK value problem of higher, the mechanical property of material also can increase simultaneously.
Summary of the invention
The objective of the invention is to solve deficiency and the problem that exists in the above-mentioned present technology, a kind of fiberglass radome with the aluminium hydroxide modification is provided, reduced its DK value, improved the wave penetrate capability of product.
The present invention simultaneously also provides its preparation method, and processing method is simple, finished product rate height, and production cost is lower.
Technical scheme of the present invention is as follows:
Fiberglass radome with the aluminium hydroxide modification of the present invention, it is to be made by the raw material of following parts by weight:
100 parts of unsaturated polyesters
5～30 parts in aluminium hydroxide
0.5～2 part of releasing agent
0.5～2 part in solidifying agent
0.5～2 part of promotor.
Fiberglass radome with the aluminium hydroxide modification of the present invention, the particle size range that its further technical scheme is described aluminium hydroxide is 5～15 microns; Further technical scheme is that described aluminium hydroxide is surface modification aluminium hydroxide again, and method of modifying is: aluminium hydroxide is pressed 1: the mass ratio of (20～40) adds in the ethanol solution, uses ultrasonication 20～40 minutes under mechanical stirring; Press 0.5～2% of aluminium hydroxide quality then and add silane coupling agent, under mechanical stirring, reacted 60～120 minutes again, underpressure distillation, dry 2～4h promptly gets surface modification aluminium hydroxide in 60 ℃ of baking ovens except that being placed on after desolvating.
Fiberglass radome with the aluminium hydroxide modification of the present invention, its further technical scheme are to also have 1～3 part pigment paste in the raw material, and pigment paste can make product have distinct colors to satisfy the demand of different clients to product.
In the fiberglass radome with the aluminium hydroxide modification of the present invention, promotor and solidifying agent and with can improving speed of reaction, thereby but the less performance such as machinery that do not influence of consumption mainly act on: the one, as the solidifying agent of reinforced resin, the hardness of raising goods; The 2nd, constitute binding system with other auxiliary agent, the bonding of unsaturated polyester and fiber and other material played an important role.
The preparation method of the fiberglass radome of aluminium hydroxide modification of the present invention, the conditional parameter of its expressing technique is as follows:
Figure BSA00000264030700021
Compared with prior art the invention has the beneficial effects as follows:
Fiberglass radome DK value of the present invention is lower, and wave penetrate capability is good, and specific inductivity can be reduced to 3.76; The mechanical propertys such as tensile strength of product do not reduce yet simultaneously, and its mechanical property also improves to some extent when particularly making additive with the aluminium hydroxide of surface modification, can reach user's the standard that requires fully; This product also has certain flame retardant resistance.The preparation method is simple in addition, finished product rate height.
The main premium properties of using the physical property-low DK value of aluminium hydroxide in the fiberglass radome product, uniform distribution in product, reduce the DK value of whole resin material, along with the reduction of whole resin material DK value, the specific inductivity of matrix material, loss tangent all will reduce.Because resin is bad to the infiltration of strongthener, can not get rid of the air of carrying secretly in the fiber fully, stir the air of introducing when joining glue, the reason such as excessive of low molecular product makes and produces hole in the goods in the curing reaction.Hole in the material comprises the hole of storage pore and opening, under dry situation, it is occupied that two kinds of holes come down to by air, and the specific inductivity of air is generally speaking near 1, and loss tangent approaches zero especially, therefore, porosity is big more, and promptly the occupied volume of air is big more, concerning whole matrix material, specific inductivity, loss tangent will all decrease, promptly in saturating wave process, reflection and hear rate all reduce, and saturating ripple rate raises.In addition the aluminium hydroxide crossed of surface modification because and resin merge more, make mechanical property also improve to some extent.
Embodiment
The preparation method of the fiberglass radome of aluminium hydroxide modification among the embodiment, the conditional parameter of its expressing technique is as follows:
Figure BSA00000264030700031
Embodiment 1
Composition of raw materials: unsaturated polyester (A402-972) 100kg, aluminium hydroxide 15kg, pigment paste (RAL7035) 2kg, releasing agent 1kg, solidifying agent 1kg, promotor 1kg, the specific inductivity of product sees Table 1 after testing.
Embodiment 2
Composition of raw materials: unsaturated polyester (A409-972) 100kg, aluminium hydroxide 12kg, pigment paste (RAL 4008) 2kg, releasing agent 1kg, solidifying agent 1kg, promotor 1kg, the specific inductivity of product sees Table 1 after testing.
Embodiment 3
Composition of raw materials: unsaturated polyester (A402-902) 100kg, aluminium hydroxide 10kg, pigment paste (RAL 3011) 1kg, releasing agent 1kg, solidifying agent 1kg, promotor 1kg, the specific inductivity of product sees Table 1 after testing.
Embodiment 4
Composition of raw materials: unsaturated polyester (HS-239) 100kg, aluminium hydroxide 8kg, pigment paste (RAL 2001) 3kg, releasing agent 1kg, solidifying agent 1kg, promotor 1kg, the specific inductivity of product sees Table 1 after testing.
Embodiment 5
Composition of raw materials: unsaturated polyester (HS-1001) 100kg, aluminium hydroxide 6kg, pigment paste (RAL 5019) 2kg, releasing agent 0.5kg, solidifying agent 0.5kg, promotor 2kg, the specific inductivity of product sees Table 1 after testing.
Embodiment 6
Composition of raw materials: unsaturated polyester (HS-5100) 100kg, aluminium hydroxide 4kg, pigment paste (RAL5015) 2kg, releasing agent 2kg, solidifying agent 2kg, promotor 0.5kg, the specific inductivity of product sees Table 1 after testing.
Embodiment 7
Composition of raw materials: unsaturated polyester (HS-5100) 100kg, surface modification aluminium hydroxide 4kg, pigment paste (RAL5015) 2kg, releasing agent 2kg, solidifying agent 2kg, promotor 0.5kg, the specific inductivity of product sees Table 1 after testing.
The surface of aluminum hydroxide method of modifying is: the mass ratio of aluminium hydroxide by 1: 30 added in the ethanol solution, use ultrasonication 30 minutes under mechanical stirring; Press 1% of aluminium hydroxide quality then and add silane coupling agent, under mechanical stirring, reacted 60 minutes again, underpressure distillation, dry 4h promptly gets surface modification aluminium hydroxide in 60 ℃ of baking ovens except that being placed on after desolvating.
Comparative example
The CaCO3 that goes into 30 parts replaces aluminium hydroxide as filler, and other is with embodiment 1, and product performance see Table 1
Table 1: product detects the performance table look-up
DIELECTRIC CONSTANT ' Dielectric loss ε "
Embodiment 1 3.7631-3.7873 0.0692-0.0746
Embodiment 2 3.8043-3.8454 0.0789-0.0845
Embodiment 3 3.8452-3.8843 0.0814-0.0925
Embodiment 4 3.8624-3.9042 0.0942-0.1042
Embodiment 5 3.9280-3.9604 0.0922-0.0968
Embodiment 6 3.9843-4.0526 0.1125-0.1348
Embodiment 7 3.9045-3.9546 0.0944-0.0978
Comparative example 4.2176--4.2797 0.0803--0.0875
Testing conditions: test frequency 2GHz, specimen thickness 3mm, according to above-mentioned test result as can be seen: when the addition increase of aluminium hydroxide, then specific inductivity reduces, and promptly wave penetrate capability is improved.

Claims (5)

1. fiberglass radome with the aluminium hydroxide modification is characterized in that it being that raw material by following parts by weight is made:
100 parts of unsaturated polyesters
5～30 parts in aluminium hydroxide
0.5～2 part of releasing agent
0.5～2 part in solidifying agent
0.5～2 part of promotor.
2. the fiberglass radome with the aluminium hydroxide modification according to claim 1, the particle size range that it is characterized in that described aluminium hydroxide is 5～15 microns.
3. the fiberglass radome with the aluminium hydroxide modification according to claim 2, it is characterized in that described aluminium hydroxide is surface modification aluminium hydroxide, method of modifying is: aluminium hydroxide is pressed 1: the mass ratio of (20～40) adds in the ethanol solution, uses ultrasonication 20～40 minutes under mechanical stirring; Press 0.5～2% of aluminium hydroxide quality then and add silane coupling agent, under mechanical stirring, reacted 60～120 minutes again, underpressure distillation, dry 2～4h promptly gets surface modification aluminium hydroxide in 60 ℃ of baking ovens except that being placed on after desolvating.
4. the fiberglass radome with the aluminium hydroxide modification according to claim 1 is characterized in that also having 1～3 part pigment paste in the described raw material.
5. preparation method as the fiberglass radome of the arbitrary described aluminium hydroxide modification of claim 1-4 is characterized in that the conditional parameter of expressing technique is as follows:
Figure FSA00000264030600011
CN2010102776536A 2010-09-10 2010-09-10 Glass fiber reinforced plastic antenna housing modified by aluminum hydroxide and preparation method thereof Pending CN101942185A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102570026A (en) * 2012-01-06 2012-07-11 南京华格电汽塑业有限公司 Glass fiber reinforced plastic radome modified by methyl isobutyl ketone peroxide and preparation method therefor
CN103286963A (en) * 2012-03-02 2013-09-11 深圳光启创新技术有限公司 Preparation method of glass-reinforced plastic, and glass-reinforced plastic antenna housing and preparation method thereof
CN105140639A (en) * 2015-09-17 2015-12-09 珠海国能新材料股份有限公司 Glass fiber reinforced plastic radome and preparation method thereof
CN105419277A (en) * 2015-12-11 2016-03-23 南京华格电汽塑业有限公司 Low-dielectric-property composite material
CN106751637A (en) * 2016-12-28 2017-05-31 南京华格电汽塑业有限公司 A kind of fiberglass radome section bar and preparation method thereof
CN110016235A (en) * 2019-01-15 2019-07-16 南京华格电汽塑业有限公司 A kind of anti-flaming glass fiber reinforced plastics antenna house profile and preparation method thereof
CN111393818A (en) * 2020-03-10 2020-07-10 珠海国能新材料股份有限公司 Glass fiber reinforced plastic pultrusion radome for 5G base station and preparation method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102570026A (en) * 2012-01-06 2012-07-11 南京华格电汽塑业有限公司 Glass fiber reinforced plastic radome modified by methyl isobutyl ketone peroxide and preparation method therefor
CN102570026B (en) * 2012-01-06 2014-08-13 南京华格电汽塑业有限公司 Glass fiber reinforced plastic radome modified by methyl isobutyl ketone peroxide and preparation method therefor
CN103286963A (en) * 2012-03-02 2013-09-11 深圳光启创新技术有限公司 Preparation method of glass-reinforced plastic, and glass-reinforced plastic antenna housing and preparation method thereof
CN105140639A (en) * 2015-09-17 2015-12-09 珠海国能新材料股份有限公司 Glass fiber reinforced plastic radome and preparation method thereof
CN105140639B (en) * 2015-09-17 2018-03-06 珠海国能新材料股份有限公司 Fiberglass radome and preparation method thereof
CN105419277A (en) * 2015-12-11 2016-03-23 南京华格电汽塑业有限公司 Low-dielectric-property composite material
CN106751637A (en) * 2016-12-28 2017-05-31 南京华格电汽塑业有限公司 A kind of fiberglass radome section bar and preparation method thereof
CN106751637B (en) * 2016-12-28 2019-07-23 南京华格电汽塑业有限公司 A kind of fiberglass radome profile and preparation method thereof
CN110016235A (en) * 2019-01-15 2019-07-16 南京华格电汽塑业有限公司 A kind of anti-flaming glass fiber reinforced plastics antenna house profile and preparation method thereof
CN111393818A (en) * 2020-03-10 2020-07-10 珠海国能新材料股份有限公司 Glass fiber reinforced plastic pultrusion radome for 5G base station and preparation method thereof

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Application publication date: 20110112