CN112500640A - High-strength polypropylene composite material for 5G antenna housing and preparation method thereof - Google Patents
High-strength polypropylene composite material for 5G antenna housing and preparation method thereof Download PDFInfo
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- CN112500640A CN112500640A CN202011412278.1A CN202011412278A CN112500640A CN 112500640 A CN112500640 A CN 112500640A CN 202011412278 A CN202011412278 A CN 202011412278A CN 112500640 A CN112500640 A CN 112500640A
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 37
- -1 polypropylene Polymers 0.000 title claims abstract description 33
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000004005 microsphere Substances 0.000 claims abstract description 41
- 239000003365 glass fiber Substances 0.000 claims abstract description 27
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 24
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000007822 coupling agent Substances 0.000 claims abstract description 12
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 239000002270 dispersing agent Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008117 stearic acid Substances 0.000 claims abstract description 7
- 230000003213 activating effect Effects 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 10
- 229920006124 polyolefin elastomer Polymers 0.000 claims description 9
- 229920002943 EPDM rubber Polymers 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000012745 toughening agent Substances 0.000 claims description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 229920001903 high density polyethylene Polymers 0.000 claims description 5
- 239000004700 high-density polyethylene Substances 0.000 claims description 5
- 239000004611 light stabiliser Substances 0.000 claims description 5
- 229920001684 low density polyethylene Polymers 0.000 claims description 5
- 239000004702 low-density polyethylene Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical group OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 150000007970 thio esters Chemical class 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 150000004645 aluminates Chemical class 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 238000002715 modification method Methods 0.000 claims description 2
- 229920002125 Sokalan® Polymers 0.000 claims 8
- 239000004584 polyacrylic acid Substances 0.000 claims 8
- 239000002861 polymer material Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 description 1
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011208 reinforced composite material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of high polymer materials, and particularly relates to a high-strength polypropylene composite material for a 5G antenna housing and a preparation method thereof. The composite material comprises the following raw materials in parts by weight: 50-84 parts of extrusion-grade polypropylene, 10-40 parts of glass fiber, 2-10 parts of activated hollow microspheres, 3-10 parts of compatilizer, 2-10 parts of flexibilizer, 0.1-1 part of lubricant, 0.2-0.5 part of antioxidant and 0.2-0.5 part of weather-resistant agent; the activated hollow microspheres are obtained by activating and modifying stearic acid or stearate, a hyperbranched multifunctional dispersant and a coupling agent. The activated and modified hollow microspheres are matched with glass fibers and other raw materials to prepare the polypropylene composite material with low dielectric constant, low dielectric loss, high mechanical strength, low-temperature toughness and excellent weather resistance.
Description
Technical Field
The invention relates to the technical field of high polymer materials, and particularly relates to a high-strength polypropylene composite material for a 5G antenna housing and a preparation method thereof.
Background
The society has entered the age of 5G, and 5G is the abbreviation of five generations of mobile communication technologies, and its transmission speed is faster than 4G, and transmission signal intensity is relatively poor. Therefore, articles such as radomes, which are critical to signal transmission, require materials with lower dielectric constants and dielectric losses. Also, excellent mechanical strength and weather resistance are required for outdoor use.
At present, the radome mainly comprises glass fiber reinforced plastic products, but the glass fiber reinforced plastic has a large specific gravity, so that the lightweight design of the radome is not facilitated, a high polymer material is used as a raw material of the radome, solid glass beads 7.0-7.6 with a low dielectric constant and silica 3.9 are mixed with a polypropylene material to form the radome, the dielectric constant is reduced, the obtained material has low mechanical strength, the dielectric constant is still difficult to reach below 3.0, and the requirement of a 5G radome cannot be met.
Disclosure of Invention
Aiming at the problems in the prior art, the raw materials and the proportion thereof are designed according to the dielectric constant and the mechanical strength required by the 5G antenna housing material, the hollow microspheres in the raw materials are modified by stearic acid or stearate, a hyperbranched dispersant and a coupling agent to obtain activated hollow microspheres with high mechanical strength and small dielectric constant, and the activated hollow microspheres are applied to a polypropylene composite material to obtain the composite material with high mechanical strength, excellent weather resistance and low dielectric constant.
In order to achieve the purpose, the invention provides a high-strength polypropylene composite material for a 5G antenna housing, which comprises the following raw materials in parts by weight:
50-84 parts of extrusion-grade polypropylene, 10-40 parts of glass fiber, 2-10 parts of activated hollow microspheres, 3-10 parts of compatilizer, 2-10 parts of flexibilizer, 0.1-1 part of lubricant, 0.2-0.5 part of antioxidant and 0.2-0.5 part of weather-resistant agent;
the activated hollow microspheres are obtained by activating and modifying stearic acid or stearate, a hyperbranched multifunctional dispersant and a coupling agent.
Further, the activation modification method of the activated hollow microsphere comprises the following steps:
adding the hollow microspheres, stearic acid or stearate, hyperbranched multifunctional dispersant and coupling agent into a high-speed mixer, reacting for 2-5min at the temperature of 60 ℃ and the rotating speed of 200-500r/m, and cooling to obtain activated hollow microspheres;
the hollow microspheres are hollow glass microspheres or hollow silicon dioxide microspheres; the hyperbranched multifunctional dispersant is HyPer C100 or HyPer C180, and the coupling agent is any one or more of a silane coupling agent, an aluminate coupling agent or a titanate coupling agent.
Further, the extrusion grade polypropylene has a melt flow rate of 0.1 to 6g/10 min.
Furthermore, the glass fiber is D-glass fiber or Q-glass fiber, the dielectric constant is less than or equal to 3.8(10GHz), and the diameter is 7-20 μm.
Further, the compatilizer is a graft of maleic anhydride and polypropylene PP or polyolefin elastomer POE or ethylene propylene diene EPDM, and the grafting rate of the maleic anhydride is 0.5-2.5%.
Further, the toughening agent is a compound of one or more of Low Density Polyethylene (LDPE), Linear Low Density Polyethylene (LLDPE), High Density Polyethylene (HDPE), polyolefin elastomer (POE) and Ethylene Propylene Diene Monomer (EPDM).
Further, the lubricant is one or more of polyethylene PE wax, polypropylene PP wax, LicowaxOP wax, ethylene bis stearamide EBS, TAF and silicone powder.
Furthermore, the main antioxidant in the antioxidants is hindered phenol antioxidant, and the auxiliary antioxidant is phosphite antioxidant or thioester antioxidant.
Further, the weather resisting agent is compounded by two hindered amine light stabilizers with different molecular weights.
Based on the same inventive concept, the invention provides a preparation method of a high-strength polypropylene composite material for a 5G antenna housing, which comprises the following steps:
uniformly mixing extrusion-grade polypropylene, a compatilizer and a toughening agent in a medium-speed mixer, and adding the mixture into a double-screw extruder from a main feeding port; uniformly mixing the activated hollow microspheres, the lubricant, the antioxidant and the weather-resistant agent in a high-speed mixer, and adding the mixture into a double-screw extruder from a side feeding port; adding the glass fiber into a double-screw extruder from a glass fiber port, and extruding and granulating at the screw rotation speed of 180-.
Has the advantages that:
(1) the invention obtains the activated hollow microspheres with high compressive strength, low dielectric constant and low dielectric loss by carrying out activation modification treatment on the hollow microspheres, and selects the glass fiber (D-glass fiber or Q-glass fiber) with low dielectric constant to be matched with the activated hollow microspheres to be applied to the polypropylene composite material, thereby preparing the reinforced polypropylene composite material with low dielectric constant and low dielectric loss.
(2) The invention selects high-strength extrusion-grade polypropylene as matrix resin, and realizes high mechanical strength, low-temperature toughness and excellent weather resistance of the composite material by matching with the compatilizer, the flexibilizer, the antioxidant and the weather-resistant agent.
(3) According to the invention, the activated hollow microspheres with high compressive strength are added, so that the original hollow characteristics of the activated hollow microspheres can be kept in the preparation process, and meanwhile, the glass fibers can be dispersed and matched with the lubricant, so that the orientation of the glass fibers is reduced, the anisotropy of the composite material is weakened, and the buckling deformation phenomenon of the composite material is obviously improved.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to specific embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by existing methods.
In the following examples:
the flow rate of the extrusion grade polypropylene melt is 0.1-6g/10 min.
The glass fiber is low dielectric glass fiber D-glass fiber or Q-glass fiber, the dielectric constant is less than or equal to 3.8(10GHz), and the diameter is 7-20 μm.
The compatilizer is a graft of maleic anhydride and PP or POE or EPDM, and the grafting rate of the maleic anhydride is 0.5-2.5 percent, such as PP-g-MAH and POE-g-MAH.
The toughening agent is one or a compound of LDPE, LLDPE, HDPE, POE and EPDM.
The lubricant is one or more of PE wax, PP wax, OP wax, EBS, TAF and silicone powder.
The primary antioxidant is hindered phenol antioxidant such as antioxidant 1010 and antioxidant 1098; the auxiliary antioxidant is phosphite antioxidant or thioester antioxidant, such as phosphite antioxidant 168 and thioester antioxidant DSTOP.
The weather resisting agent is compounded by two hindered amine light stabilizers with different molecular weights, such as a light stabilizer UV3346 and a light stabilizer UV3853PP 5.
The activated hollow microspheres comprise activated hollow glass microspheres and activated hollow silica microspheres, and the preparation method comprises the following steps:
adding hollow microspheres (hollow glass microspheres and hollow silica microspheres) and stearic acid (or stearate) as an activating agent, a hyperbranched multifunctional dispersant (HyPerC100 or HyPerC180) and a silane coupling agent A172 into a high-speed mixer according to the mass ratio of 75:10:10:5, reacting for 2min at the temperature of 60 ℃ and the rotating speed of 300r/m, and cooling to obtain the activated hollow glass microspheres and the activated hollow silica microspheres.
The dielectric constant of the activated hollow glass microspheres is 1.2-2.2(10GHz), the compressive strength is 1.72MPa-124.02MPa, the particle size is 15 mu m-120 mu m, the dielectric constant of the activated hollow silicon dioxide microspheres is 1.3-2.5(10GHz), and the particle size is 3 mu m-50 mu m.
The formulations of the examples are shown in table 1:
TABLE 1 tables of formulations of examples and comparative examples
The reinforced polypropylene material is obtained by weighing corresponding raw materials according to the formulas of the examples and the comparative examples in the table 1 and according to the following preparation method, and the specific steps are as follows:
uniformly mixing extrusion-grade polypropylene, a compatilizer and a toughening agent in a medium-speed mixer, and adding the mixture into a double-screw extruder from a main feeding port; uniformly mixing activated hollow glass microspheres, activated hollow silica microspheres, a lubricant, an antioxidant and a weather-resistant agent in a high-speed mixer, and adding the mixture into a double-screw extruder from a side feeding port; adding the glass fiber into a double-screw extruder from a glass fiber port, and extruding and granulating at the screw rotation speed of 180-.
The obtained polypropylene composite material is dried and injected into a standard sample strip and a sample block for detection, and the test results are shown in table 2.
Table 2 comparative and example material property test results
According to the performance test results of the polypropylene composite materials obtained in the above examples and comparative examples, the invention adopts the D-glass fiber and Q-glass fiber with low dielectric constants (the dielectric constant is less than or equal to 3.8), the activated hollow glass microsphere with high compressive strength (the dielectric constant is 1.2-2.2) and the activated hollow silica microsphere (the dielectric constant is 1.3-2.5), so that the dielectric constant and the dielectric loss of the reinforced polypropylene composite material are obviously reduced. The dielectric constant of the composite material is less than 3.0, and the requirement of a 5G antenna housing material is met. The particles of the activated hollow glass microspheres and the hollow silicon dioxide microspheres with high compressive strength are added, so that the warping deformation of the material is improved. The extrusion-grade polypropylene matrix resin is used for preparing the toughening agent, the compatilizer, the antioxidant and the weather-resistant agent, so that the low-dielectric extrusion-grade polypropylene reinforced composite material with high strength, high and low temperature toughness and weather resistance is prepared.
The above-mentioned embodiments are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical scope of the present invention, and equivalents and modifications of the technical solutions and concepts of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The high-strength polypropylene composite material for the 5G antenna housing is characterized by comprising the following raw materials in parts by weight:
50-84 parts of extrusion-grade polypropylene, 10-40 parts of glass fiber, 2-10 parts of activated hollow microspheres, 3-10 parts of compatilizer, 2-10 parts of flexibilizer, 0.1-1 part of lubricant, 0.2-0.5 part of antioxidant and 0.2-0.5 part of weather-resistant agent;
the activated hollow microspheres are obtained by activating and modifying stearic acid or stearate, a hyperbranched multifunctional dispersant and a coupling agent.
2. The high-strength polyacrylic acid composite material according to claim 1, wherein the activation modification method of the activated hollow microspheres is as follows:
adding the hollow microspheres, stearic acid or stearate, hyperbranched multifunctional dispersant and coupling agent into a high-speed mixer, reacting for 2-5min at the temperature of 60 ℃ and the rotating speed of 200-500r/m, and cooling to obtain activated hollow microspheres;
the hollow microspheres are hollow glass microspheres or hollow silicon dioxide microspheres; the hyperbranched multifunctional dispersant is HyPer C100 or HyPer C180, and the coupling agent is any one or more of a silane coupling agent, an aluminate coupling agent or a titanate coupling agent.
3. The high strength polyacrylic acid composite of claim 1, wherein the extrusion grade polypropylene has a melt flow rate of 0.1 to 6g/10 min.
4. The high-strength polyacrylic acid composite material as claimed in claim 1, wherein the glass fiber is D-glass fiber or Q-glass fiber, has a dielectric constant of 3.8(10GHz) or less, and has a diameter of 7-20 μm.
5. The high-strength polyacrylic acid composite material as claimed in claim 1, wherein the compatibilizer is a graft of maleic anhydride with PP, POE or EPDM, and the grafting ratio of maleic anhydride is 0.5% to 2.5%.
6. The high-strength polyacrylic acid composite material as claimed in claim 1, wherein the toughening agent is a combination of one or more of Low Density Polyethylene (LDPE), Linear Low Density Polyethylene (LLDPE), High Density Polyethylene (HDPE), polyolefin elastomer (POE) and Ethylene Propylene Diene Monomer (EPDM).
7. The high strength polyacrylic acid composite of claim 1, wherein the lubricant is one or more of PE wax, PP wax, OP wax, EBS, TAF, silicone powder.
8. The high-strength polyacrylic acid composite material as claimed in claim 1, wherein the primary antioxidant is hindered phenol antioxidant and the secondary antioxidant is phosphite antioxidant or thioester antioxidant.
9. The high-strength polyacrylic acid composite material as claimed in claim 1, wherein the weathering agent is a combination of two hindered amine light stabilizers with different molecular weights.
10. A preparation method of a high-strength polypropylene composite material for a 5G radome is characterized by comprising the following steps:
uniformly mixing extrusion-grade polypropylene, a compatilizer and a toughening agent in a medium-speed mixer, and adding the mixture into a double-screw extruder from a main feeding port; uniformly mixing the activated hollow microspheres, the lubricant, the antioxidant and the weather-resistant agent in a high-speed mixer, and adding the mixture into a double-screw extruder from a side feeding port; adding the glass fiber into a double-screw extruder from a glass fiber port, and extruding and granulating at the screw rotation speed of 180-.
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| CN113372660A (en) * | 2021-07-05 | 2021-09-10 | 安徽江淮汽车集团股份有限公司 | ASA composite material and preparation method thereof |
| CN113751185A (en) * | 2021-05-25 | 2021-12-07 | 中国地质科学院郑州矿产综合利用研究所 | Method for recovering glass beads by gasification slag wet carbon extraction and dry method |
| CN116199976A (en) * | 2022-10-19 | 2023-06-02 | 青岛海纳新材料有限公司 | Halogen-free flame-retardant glass fiber reinforced polypropylene composite material for 5G |
| CN117844129A (en) * | 2024-01-08 | 2024-04-09 | 仙桃市聚兴橡胶有限公司 | Low-Mooney-viscosity butyl regenerated rubber and preparation method thereof |
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| CN113372660B (en) * | 2021-07-05 | 2022-08-26 | 安徽江淮汽车集团股份有限公司 | ASA composite material and preparation method thereof |
| CN116199976A (en) * | 2022-10-19 | 2023-06-02 | 青岛海纳新材料有限公司 | Halogen-free flame-retardant glass fiber reinforced polypropylene composite material for 5G |
| CN117844129A (en) * | 2024-01-08 | 2024-04-09 | 仙桃市聚兴橡胶有限公司 | Low-Mooney-viscosity butyl regenerated rubber and preparation method thereof |
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