CN110527188A - A kind of high wave transparent polypropene composition and preparation method thereof - Google Patents
A kind of high wave transparent polypropene composition and preparation method thereof Download PDFInfo
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- CN110527188A CN110527188A CN201910784032.8A CN201910784032A CN110527188A CN 110527188 A CN110527188 A CN 110527188A CN 201910784032 A CN201910784032 A CN 201910784032A CN 110527188 A CN110527188 A CN 110527188A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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Abstract
The invention discloses a kind of high wave transparent polypropene composition and preparation method thereof, following components including following parts by weight: 70~97.2 parts of polypropylene；3.0~35 parts of quartz fibre；1.0~2.0 parts of silane coupling agent；0.5~1.0 part of industrial processes oil；0.1~0.5 part of antioxidant；0.1~0.4 part of nucleating agent；0.1~0.5 part of permanent anti-static agent.High wave transparent polypropene composition of the invention has following the utility model has the advantages that the use that 1) can be mass-produced, reduces production cost compared with the prior art；2) wave transparent performance increases substantially, and in the case where >=70GHZ, to the proportion of goods damageds of radar wave less than 3%, while reducing dielectric constant and dielectric loss, above-mentioned advantage allows the thickness of product to formulate product thickness according to the intensity actual demand of material；3) high wave-transmissivity materials of quartz fibre have been used, can be -40 DEG C in low temperature, it is long-term durable at 105 DEG C of high temperature.
Description
Technical field
The present invention relates to electromagnetic wave transparent material technical fields, and in particular to a kind of high wave transparent polypropene composition and its preparation side
Method.
Background technique
Electromagnetic wave transparent material is one of the key technology for influencing advanced guidance, is mainly used in antenna radar cover and automatic Pilot passes
Feel material etc., good electromagnetic wave transparent material requires material to have good heat resistance, low-k and low price electrical loss.Dielectric
Constant is bigger, and the antenna house and automatic Pilot sensor wrap of corresponding single layer half-wave wall construction are thinner, this will affect its intensity
Performance.Dielectric loss reflects electromagnetic wave energy loss degree in the medium, and value is smaller, and the energy consumption of electromagnetic wave is smaller, electromagnetic wave
Transmitance it is higher.
The present Research of wave-penetrating composite material
Electromagnetic wave transparent material is broadly divided into organic electromagnetic wave transparent material and inorganic electromagnetic wave transparent material, i.e. macromolecule electromagnetic wave transparent material and pottery wave transparent material
Material.Macromolecule electromagnetic wave transparent material includes glass, quartz and organic fiber reinforced resin (epoxy resin, cyanate resin, polyester resin
With bimaleimide resin etc.) composite material.Ceramic wave-transmitting material includes quartz-ceramics, aluminium oxide ceramics, devitrified glass, nitrogen
The ceramic composites such as SiClx ceramics and glass fibre and quartz fibre enhancing silica, phosphate.
It is compound that the Chinese patent application of Publication No. CN101891957A discloses a kind of organic silicon resin-based heat-resisting wave-penetrating
Material and preparation method, including organic siliconresin, reinforcing fiber, polyhedral oligomeric silsesquioxane (abbreviation POSS), nanometer nothing
Machine filler and auxiliary agent through dipping, hot pressing, post-process, and component, which is constituted, in terms of mass parts includes at least: organic siliconresin:
100；Reinforcing fiber: 100~235；Nano inorganic filler: 4~15；POSS:3~16；Assist curing agent: appropriate.With good
High temperature resistance, manufacturing process is simple, and low in cost, the bullet arrow weapon especially suitable for high-speed flight is to high wave transmission rate, height
The technical requirements of heat resistance and high intensity.
The enhanced form of electromagnetic wave transparent material is mainly resin particle enhancing, whisker reinforcement and fiber reinforcement etc..It is multiple as wave transparent
The reinforcing fiber of condensation material has E fiber, D glass bridal veil fiber, S glass from fiber, vagcor, quartz fibre, aramid fiber and high-strength poly-
Ethylene (UHSPE) fiber etc..Its performance is as shown in table 1 below:
The various performance tables for electromagnetic wave transparent material fiber of table 1
Infuse f=9.375GHZ
Continuous growth with Motor Vehicle Safety Standard, automotive circuit diagram level and people to driving safety demand, it is close several
Fast-developing trend is presented in Nian Lai, the ADAS navigation for having automatic safe driving technology, and the fast-developing of above-mentioned navigation needs
A large amount of sensor is as support, and with the extensive use that ADAS navigates, coming years car radar transducer market
Annual growth is up to 23%, and millimetre-wave radar is only selection, radar of the wavelength applications in 25GHZ~85GHZ, institute among these
It is just aobvious very prominent with the specific function of its protection materials, and its frequency resistance consumption needs to be less than 3%, to the prior art be compared with
Difficulty reaches, especially in the high-end field wave band 77GHZ~79GHZ.
The material of the prior art has following defects: 1) advanced composite material is often that a kind of semiconductor is fine with carbon fiber
Dimension has stronger ELECTROMAGNETIC REFLECTION and dielectric loss characteristics, therefore is not suitable for wave transparent purposes；Furthermore 2), aramid fiber has high
Hygroscopicity, a small amount of moisture can increase considerably the dielectric constant of composite material, reduce wave-penetrating composite material electromagnetic performance, and
And thermosetting method can only be used to process, the disadvantages of processing technology is complicated, high production cost；3) radar of vehicle drive navigation at present is led
Application amount of navigating is big, and traditional production technology can not be applicable in, and be unable to reach corresponding performance requirement；4) quartz fibre is as inorganic matter
Can not merge well with organic matter, so can occur conglomeration in an extruder, and can not be added in production, compatibility compared with
Difference.
Summary of the invention
It is produced by the present invention high saturating the object of the present invention is to provide a kind of high wave transparent polypropene composition and preparation method thereof
Wave Polypropylene compositions can be mass-produced, is at low cost, and have preferable wave transparent performance, lower dielectric constant and lower Jie
Electrical loss.
To achieve the above object, the present invention is realized by following technical proposal:
A kind of high wave transparent polypropene composition, following components including following parts by weight:
70~97.2 parts of polypropylene；
3.0~55 parts of quartz fibre；
1.0~2.0 parts of silane coupling agent；
0.5~1.0 part of industrial processes oil；
0.1~0.5 part of antioxidant；
0.1~0.4 part of nucleating agent；
0.1~0.5 part of permanent anti-static agent.
As a further improvement, the industrial processes oil is technical white oil.
As a further improvement, the filament diameter of the quartz fibre is 5um~9um.
As a further improvement, the silane coupling agent is KH550, KH470, KH570, Z6030, Z6040, Z6011
In any one or a few.
As a further improvement, the antioxidant is Hinered phenols antioxidant and phosphite ester antioxidant.
As a further improvement, the nucleating agent is α or beta crystal-type nucleater.
As a further improvement, the permanent anti-static agent be MH2030, CYASTAT609, CYASTAT SN,
CYASTAT SP, 609 CYASTAT, AS500, Hostastat FA14, in Basionics LQ 01 any one or it is several
Kind.
A method of high wave transparent polypropene composition is prepared, is included the following steps:
Step 1
Content weighs 70 parts of raw material polypropylene by weight percentage；3.0 parts of quartz fibre；1.0 parts of silane coupling agent；Industry
0.5 part of processing oil；0.1 part of antioxidant；0.1 part of nucleating agent；0.1 part of permanent anti-static agent；
Step 2
First 70 parts of polypropylene are uniformly mixed by weight ratio with 0.5 part of technical white oil, then by the remaining each group
Divide and be put into high-speed mixer and mixing by weight ratio, discharges；
Step 3
Add fine mouth that 3.0~35 parts of quartz fibres are added, high wave transparent Polypropylene compositions are made in double screw extruder extruding pelletization
Object.
As a further improvement, the extrusion temperature of the double screw extruder is 220 DEG C, revolving speed 300r/min.
A kind of high wave transparent polypropene composition comparison prior art is made in the present invention, have it is following the utility model has the advantages that
1) the traditional thermosetting for changing electromagnetic wave transparent material shapes method (burning clean method and coating composite algorithm), uses heat ductile forming
Method (injection molded or compression molding forming) makes it possible to produce in enormous quantities and use, and reduces production cost；
2) wave transparent performance increases substantially, and in the case where >=70GHZ, to the proportion of goods damageds of radar wave less than 3%, drops simultaneously
Low-k and dielectric loss, above-mentioned advantage allow the thickness of product to formulate product according to the intensity actual demand of material
Thickness；
3) dielectric constant and dielectric loss are not only reduced, and processing technology can use the material of thermoplastic method, this hair
It is bright to have developed with high molecular polymer instead of traditional thermosetting method (injection molded), can so mold be used to reach fast short-term training
The radar wave loss of shape, material can be minimized again；The high wave-transmissivity materials of quartz fibre have been used, can be -40 DEG C in low temperature, high temperature
It is long-term durable at 105 DEG C.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments a~f to the present invention
It is described further:
Embodiment a
Step 1
Content weighs 70 parts of raw material polypropylene by weight percentage；3.0 parts of quartz fibre；1.0 parts of silane coupling agent,
In, silane coupling agent is that KH570 is 0.2 part, and Z6030 is 0.8 part；0.5 part of industrial processes oil；0.1 part of antioxidant, wherein by
Hindering phenolic antioxidant is 0.05 part, 0.05 part of phosphite ester antioxidant；0.1 part of nucleating agent, nucleating agent is beta crystal-type nucleater；
0.1 part of permanent anti-static agent, permanent anti-static agent is CYASTAT 609；
Step 2
First 70 parts of polypropylene are uniformly mixed by weight ratio with 0.5 part of technical white oil, then by the remaining each group
Divide and be put into high-speed mixer and mixing by weight ratio, discharges；
Step 3
Adding fine mouth that 3.0 parts of filament diameters are added is 5um~9um quartz fibre, double screw extruder extruding pelletization, twin-screw
The extrusion temperature of extruder is 220 DEG C, revolving speed 300r/min, and high wave transparent polypropene composition is made.
Embodiment b
Step 1 content by weight percentage weighs 80 parts of raw material polypropylene；11.7 parts of quartz fibre；Silane coupling agent 1.5
Part, wherein KH550 is 0.6 part, KH470 is 0.9 part；0.8 part of industrial processes oil；Antioxidant is Hinered phenols antioxidant 0.3
Part；Nucleating agent is 0.2 part of alpha-crystal form nucleating agent；0.3 part of permanent anti-static agent, MH2030 is 0.1 part, CYASTAT609 0.2
Part；
80 parts of polypropylene are first uniformly mixed by step 2 by weight ratio with 0.8 part of technical white oil, then by the residue
Each component is put into high-speed mixer and mixing by weight ratio, discharging；
15 parts of quartz fibres, double screw extruder extruding pelletization, the extrusion temperature of double screw extruder is added in step 3 plus fine mouth
Degree is 220 DEG C, revolving speed 300r/min, and high wave transparent polypropene composition is made.
Technical white oil makes each component stirring more evenly, and dispersion effect is more preferably；
The filament diameter of quartz fibre is 5um~9um, and the effect of quartz fibre is to improve wave transmission rate, and reduced dielectric is normal
Several and low-dielectric loss, the filament diameter of the quartz fibre are 5um~9um.
The effect of silane coupling agent is that raising organic matter and inorganic matter are preferably compatible.
The effect of antioxidant is the aging reduced in high molecular polymer granulation process, is allowed to molecular structure and is not destroyed,
The antioxidant is Hinered phenols antioxidant and phosphite ester antioxidant.
Nucleating agent is α or beta crystal-type nucleater, and the effect of nucleating agent is to assign the good toughness of polypropylene and higher thermal change
Shape temperature, and it is able to achieve product porosity rate, and have good dispersed and not colored.
The effect of permanent anti-static agent is high wave transmission rate, and reduced dielectric constant and dielectric loss do high surface resistivity.
Embodiment c
Step 1
Content weighs 97.2 parts of raw material polypropylene by weight percentage；24.3 parts of quartz fibre；2.0 parts of silane coupling agent,
Silane coupling agent is Z6030, Z6040, Z6011, respectively 1 part, 0.2 part, 0.8 part；1.0 parts of industrial processes oil；Antioxidant 0.5
Part, antioxidant is phosphite ester antioxidant；0.4 part of nucleating agent, nucleating agent is beta crystal-type nucleater；Permanent anti-static agent 0.5
Part, permanent anti-static agent is AS500；
Step 2
First 97.2 parts of polypropylene are uniformly mixed by weight ratio with 1.0 parts of technical white oil, then the residue is each
Component is put into high-speed mixer and mixing by weight ratio, discharging；
Step 3
Add fine mouth that 35 parts of quartz fibres are added, the extrusion temperature of double screw extruder extruding pelletization, double screw extruder is
220 DEG C, revolving speed 300r/min, high wave transparent polypropene composition is made.
Embodiment d
Step 1
Content weighs 97.2 parts of raw material polypropylene by weight percentage；55 parts of quartz fibre；1.5 parts of silane coupling agent,
In, Z6030 is 0.1 part, Z6040 is 0.4 part, Z6011 is 1.0 parts；1.0 parts of industrial processes oil；Antioxidant is phosphorous acid esters
0.5 part of antioxidant；Nucleating agent is 0.3 part of beta crystal-type nucleater；Permanent anti-static agent is 0.4 part of CYASTAT609；
Step 2
First 97.2 parts of polypropylene are uniformly mixed by weight ratio with 1.0 parts of technical white oil, then the residue is each
Component is put into high-speed mixer and mixing by weight ratio, discharging；
Step 3
Add fine mouth that quartz fibre, double screw extruder extruding pelletization is added, the extrusion temperature of double screw extruder is 220
DEG C, high wave transparent polypropene composition is made in revolving speed 300r/min.
Silane coupling agent is not contained in 1 ingredient of comparative example, remaining ingredient is identical with embodiment.
Silane coupling agent and nucleating agent are not contained in 2 ingredient of comparative example, remaining ingredient is identical with embodiment.
1 is shown in Table to each test item of the invention and test condition
Each test item of 2 present invention of table and test condition
The test result of 3 embodiment a~b of table and comparative example 1,2
Table 4 chooses the high wave transparent polypropene composition of embodiment b, test wave transparent distance of reaction result under 77GHZ frequency
Note: comparative example 3 and comparative example 4 are the product of the prior art.
Traditional thermosetting that the electromagnetic wave transparent material of the comparison prior art uses shapes method: clean method and coating composite algorithm are burnt,
Preparation process of the invention uses heat ductile forming method: injection molding or compression molding all can, thermoplastic shaping not only makes it possible to greatly
Batch production uses, and reduces production cost, and wave transparent performance greatly improved, in the case where >=70GHZ, to radar wave
The proportion of goods damageds reduce dielectric constant and dielectric loss less than 3%, allow the thickness of product practical according to the intensity of material
Demand formulates product thickness.
In order to reduce dielectric constant and dielectric loss, and processing technology can use the material of thermoplastic method, and the present invention is ground
It has made with high molecular polymer instead of traditional thermosetting method (injection molding), thus can reach Quick-forming with mold, fitted
Close produce in enormous quantities, using the silica fiber material of high wave transparent, and use high molecular polymer method of modifying, make its radar wave damage
Consumption can be minimized again, and can be -40 DEG C in low temperature, long-term durable at 105 DEG C of high temperature.
Quartz fibre monofilament is that inorganic matter can not merge well in production with organic matter in the prior art, so can be
Occur conglomeration in extruder, and can not be added, present invention employs inorganic quartz fibres and coupling agent to combine, and produces on inorganic matter
Liveliness proof substrate makes it to merge with organic matter, (specific to make so as to merge inorganic matter quartz fibre with organic high polymer
With mechanism referring to silastic material technical applications in 2014 and development trend conference Papers collection P41~P42), and fusion ratio exists
3%~35% any cooperation, enables the frequency loss of the material according to the requirement of client to customize, millimeter wave from 22GHZ~
Frequency loss under 80GHZ, in the radar of 25GHZ~85GHZ, frequency hinders to be consumed less than 3% wavelength applications, overcomes the prior art
In difficult point, especially in the high-end field wave band 77GHZ~79GHZ.
The present invention obtain height thoroughly thin polypropene composition, practical application when, as shown in table 4, under 77GHZ frequency thoroughly
Wave distance of reaction is up to 50.67 meters, compares 32.67 and 35.67 meters of the prior art, with the obvious advantage, is suitble to promote and apply.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, all benefits
The equivalent transformation made by the present invention, in scope of patent protection of the invention.
Claims (9)
1. a kind of high wave transparent polypropene composition, which is characterized in that following components including following parts by weight:
70~97.2 parts of polypropylene；
3.0~35 parts of quartz fibre；
1.0~2.0 parts of silane coupling agent；
0.5~1.0 part of industrial processes oil；
0.1~0.5 part of antioxidant；
0.1~0.4 part of nucleating agent；
0.1~0.5 part of permanent anti-static agent.
2. high wave transparent polypropene composition according to claim 1, which is characterized in that the industrial processes oil is that industry is white
Oil.
3. high wave transparent polypropene composition according to claim 1, which is characterized in that the filament diameter of the quartz fibre
For 5um~9um.
4. high wave transparent polypropene composition according to claim 1, which is characterized in that the silane coupling agent be KH550,
Any one or a few in KH470, KH570, Z6030, Z6040, Z6011.
5. high wave transparent polypropene composition according to claim 1, which is characterized in that the antioxidant is anti-for Hinered phenols
Oxygen agent and phosphite ester antioxidant.
6. high wave transparent polypropene composition according to claim 1, which is characterized in that the nucleating agent be α or beta crystal at
Core agent.
7. high wave transparent polypropene composition according to claim 1, which is characterized in that the permanent anti-static agent is
MH2030、CYASTAT609、CYASTAT SN、CYASTAT SP、CYASTAT 609、AS500、Hostastat FA14、
Any one or a few in Basionics LQ 01.
8. a kind of method for preparing the described in any item high wave transparent polypropene compositions of claim 1~7, which is characterized in that packet
Include following step:
Step 1
Content weighs 70~97.2 parts of raw material polypropylene by weight percentage；3.0~35 parts of quartz fibre；Silane coupling agent 1.0
~2.0 parts；0.5~1.0 part of industrial processes oil；0.1~0.5 part of antioxidant；0.1~0.4 part of nucleating agent；Permanent anti-static agent
0.1~0.5 part；
Step 2
70~97.2 parts of polypropylene are uniformly mixed by weight ratio with 0.5~1.0 part of technical white oil, then by the residue
Each component is put into high-speed mixer and mixing by weight ratio, discharging；
Step 3
Add fine mouth that 3.0~35 parts of quartz fibres are added, high wave transparent polypropene composition is made in double screw extruder extruding pelletization.
9. the method for high wave transparent polypropene composition according to claim 8, which is characterized in that the double screw extruder
Extrusion temperature be 220 DEG C, revolving speed 300r/min.
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| CN112358684A (en) * | 2020-11-10 | 2021-02-12 | 南京聚隆科技股份有限公司 | Laser-weldable millimeter wave radar shell material and preparation method thereof |
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| CN111909458A (en) * | 2020-08-27 | 2020-11-10 | 深圳市卓城科技有限公司 | Preparation method of wave-transparent base material and wave-transparent base material prepared by same |
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Effective date of registration: 20220629 Address after: 314112 south side of building 6, No. 1889 jiulitang, Caoqiao street, Pinghu City, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Lisu composite material Co.,Ltd. Address before: 314000 east side of plant 6, No. 11 Songhai Road, Huimin street, Jiashan County, Jiaxing City, Zhejiang Province Applicant before: Lishu new material technology (Jiaxing) Co.,Ltd. |
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Application publication date: 20191203 |