CN111073147A - Long glass fiber reinforced polypropylene composite material for 5G antenna housing and preparation method thereof - Google Patents
Long glass fiber reinforced polypropylene composite material for 5G antenna housing and preparation method thereof Download PDFInfo
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- CN111073147A CN111073147A CN201911371409.3A CN201911371409A CN111073147A CN 111073147 A CN111073147 A CN 111073147A CN 201911371409 A CN201911371409 A CN 201911371409A CN 111073147 A CN111073147 A CN 111073147A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/043—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with glass fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
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- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses a long glass fiber reinforced polypropylene composite material for a 5G antenna housing and a preparation method thereof. Aiming at the high requirement of the 5G antenna housing on impact, particularly low-temperature impact, the long glass fiber reinforced polypropylene composite material for the 5G antenna housing disclosed by the invention abandons the traditional POE toughening mode and selects TPEE as a toughening agent. The long glass fiber reinforced polypropylene composite material for the 5G antenna housing comprises the following components in parts by weight: 30-70 parts of polypropylene resin, 20-40 parts of glass fiber, 1-30 parts of toughening agent, 0.1-1 part of weather-resistant auxiliary agent, 1-10 parts of glass bead and 0.1-1 part of antioxidant. The preparation method is simple to operate, and the prepared long glass fiber reinforced polypropylene composite material for the 5G antenna housing can ensure excellent impact resistance at the low temperature of-40 ℃. Is suitable for industrial production and application.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a long glass fiber reinforced polypropylene composite material for a 5G antenna housing and a preparation method thereof.
Background
The antenna housing is a component with the largest plastic consumption in a 5G base station, and due to the characteristics of 5G communication and increasingly strict environmental protection requirements, the antenna housing has the advantages of low dielectric, low loss, light weight, good dimensional stability, environmental protection and excellent impact resistance, and becomes the material selection standard of the antenna housing material. The polypropylene has the characteristics of low density, excellent mechanical property, low dielectric constant and the like, and has low price and high cost performance. After the glass fiber reinforced polypropylene is adopted, the mechanical property of the material can be further improved, and the linear expansion coefficient of the material is reduced. The long glass fiber reinforced polypropylene composite material for the 5G antenna housing is a high-quality material which is developed from the market and can meet the requirements of effectively reducing signal loss, ensuring stable communication, ensuring the effective usability of the antenna housing in different environments, saving cost, protecting environment and recycling.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the long glass fiber reinforced polypropylene composite material for the 5G radome, which has excellent impact performance in a low-temperature environment.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the long glass fiber reinforced polypropylene composite material for the 5G antenna housing is prepared from the following raw materials in parts by weight: the glass fiber reinforced polypropylene composite material comprises, by weight, 30-70 parts of polypropylene resin, 20-40 parts of glass fiber, 1-30 parts of a toughening agent, 0.1-1 part of a weather-resistant auxiliary agent, 1-10 parts of glass beads and 0.1-1 part of an antioxidant.
In the above 5G glass fiber reinforced polypropylene composite material for radome:
the glass fiber is low-dielectric-constant glass fiber.
The toughening agent is one or a combination of more of TPEE, EPDM, POE and SEBS.
The weather-resistant auxiliary agent is one or a combination of more of salicylic acid esters, benzophenones and benzotriazoles.
The glass beads are hollow glass beads.
The antioxidant is one or a combination of a plurality of hindered phenol antioxidants 1010, phosphite antioxidants 168, nitrogen oxide-resistant antioxidants GA80 and the like;
the preparation method of the long glass fiber reinforced polypropylene composite material for the 5G antenna housing comprises the following steps:
(1) weighing the raw materials of the polypropylene resin, the toughening agent, the glass beads and other auxiliaries according to the weight ratio, putting the weighed raw materials into a high-speed mixer, uniformly mixing, and then feeding the mixture into an impregnation tank through a double-screw extruder;
(2) and (3) carrying out bracing, cooling, granulating and drying treatment on the continuous glass fiber after passing through the impregnation tank.
The preparation method is simple to operate, and the prepared long glass fiber reinforced polypropylene composite material for the 5G antenna housing can ensure excellent impact resistance at the low temperature of-40 ℃. Is suitable for industrial production and application.
Detailed Description
The technical solution of the present invention will be further described with reference to the following specific examples.
The glass fiber used in the product is low-dielectric-constant glass fiber; the toughening agent is one or a combination of more of TPEE, EPDM, POE and SEBS; the weather-resistant auxiliary agent is one or a combination of more of salicylate, benzophenone and benzotriazole; the glass beads are hollow glass beads; the antioxidant is one or a combination of a plurality of hindered phenol antioxidants 1010, phosphite antioxidants 168, nitrogen oxide resistant antioxidants GA80 and the like.
The preparation method of the long glass fiber reinforced polypropylene composite material for the 5G antenna housing comprises the following steps:
1): weighing the raw materials of the polypropylene resin, the toughening agent, the glass beads and other auxiliaries according to the weight ratio, putting the weighed raw materials into a high-speed mixer, uniformly mixing, and then feeding the mixture into an impregnation tank through a double-screw extruder;
2): and (3) carrying out bracing, cooling, granulating and drying treatment on the continuous glass fiber after passing through the impregnation tank.
Example 1:
1): weighing 62.5 parts of polypropylene resin according to the weight ratio, and drying by an oven; adding 5 parts of TPEE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding the mixture into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Example 2:
1): 57.5 parts of polypropylene resin is weighed according to the weight ratio and dried by an oven; adding 10 parts of TPEE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Example 3:
1): weighing 52.5 parts of polypropylene resin according to the weight ratio, and drying by an oven; adding 15 parts of TPEE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Example 4:
1): weighing 47.5 parts of polypropylene resin according to the weight ratio, and drying by an oven; adding 20 parts of TPEE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Comparative example 1:
1): weighing 67.5 parts of polypropylene resin according to the weight ratio, and drying by an oven; adding 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding into a dipping tank through a double-screw extruder;
2): and (3) carrying out bracing, cooling, granulating and drying treatment on the continuous glass fiber after passing through the impregnation tank.
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Comparative example 2:
1): weighing 62.5 parts of polypropylene resin according to the weight ratio, and drying by an oven; adding 5 parts of POE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding the mixture into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Comparative example 3:
1): 57.5 parts of polypropylene resin is weighed according to the weight ratio and dried by an oven; adding 10 parts of POE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Comparative example 4:
1): weighing 52.5 parts of polypropylene resin according to the weight ratio, and drying by an oven; adding 15 parts of POE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Comparative example 5:
1): weighing 47.5 parts of polypropylene resin according to the weight ratio, and drying by an oven; adding 20 parts of POE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
Comparative example 6:
1): weighing 52.5 parts of polypropylene resin according to the weight ratio, and drying by an oven; adding 20 parts of POE, 0.3 part of weather-resistant auxiliary agent, 2 parts of glass beads and 0.2 part of antioxidant, stirring and mixing uniformly in a high-speed machine, and then feeding into a dipping tank through a double-screw extruder;
2): after passing through the impregnation tank, the continuous glass fiber is subjected to bracing, cooling, granulating and drying treatment;
3): and (3) performing injection molding on the 5G antenna housing obtained in the step (2) by using a long glass fiber reinforced polypropylene composite material to form a sample plate with the size of 150 x 100 x 3mm for later use.
And (3) performance testing:
the specific test conditions of the impact resistance of the antenna housing in the low-temperature environment are as follows: after freezing at-40 ℃ the 150 x 100 x 3mm sample plate was subjected to drop impact using 0.5kg weight pellets from a height of 0.8m, and no damage or cracks were allowed to occur on the surface of the sample plate after impact. Therefore, the impact resistance of the material in a low-temperature environment of minus 40 ℃ is characterized by falling ball impact at minus 40 ℃.
The sample plate-40 ℃ falling ball impact test results are shown in table 1:
TABLE 1 test results of Material Properties
| Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | Comparative example 6 | |
| Surface state of sample plate | Obvious crack | Obvious crack | Slight cracking | Without cracks | Crushing | Crushing | Crushing | Crushing | Obvious crack | Crushing |
From the performances of the above examples and comparative examples, it can be seen that the long glass fiber reinforced polypropylene composite material for the 5G radome of the present invention is a composite material with excellent impact resistance in a low temperature environment. According to the results, the comparison shows that the addition of TPEE can obviously improve the low-temperature impact resistance of the material, such as example 3 (15 parts of TPEE glass fiber is 30 percent of reinforced polypropylene), the surface of a sample plate has only slight cracks after the ball drop impact at 40 ℃ below zero, and the low-temperature impact resistance is better than that of comparative example 4 (15 parts of POE glass fiber is 30 percent of reinforced polypropylene); according to the results, for example, in example 4 (the glass fiber added with 20 parts of TPEE is 30% reinforced polypropylene), the surface of the sample plate after the ball drop impact at-40 ℃ does not have any damage or crack, which shows that the long glass fiber reinforced polypropylene composite material for the 5G radome of the invention can ensure that the part has excellent impact resistance in a low-temperature environment. The preparation method disclosed by the invention is simple to operate, can ensure that the long glass fiber reinforced polypropylene composite material has excellent impact resistance in a low-temperature environment, and is suitable for industrial production and application.
Claims (7)
1. The utility model provides a 5G is fine reinforcing polypropylene composite of long glass for antenna house which characterized in that: the composite material comprises the following raw materials in percentage by weight: the glass fiber reinforced polypropylene composite material comprises, by weight, 30-70 parts of polypropylene resin, 20-40 parts of glass fiber, 1-30 parts of a toughening agent, 0.1-1 part of a weather-resistant auxiliary agent, 1-10 parts of glass beads and 0.1-1 part of an antioxidant.
2. The long glass fiber reinforced polypropylene composite material for the 5G radome according to claim 1, wherein: the glass fiber is low-dielectric-constant glass fiber.
3. The long glass fiber reinforced polypropylene composite material for the 5G radome according to claim 1, wherein: the toughening agent is one or a combination of more of TPEE, EPDM, POE and SEBS.
4. The long glass fiber reinforced polypropylene composite material for the 5G radome according to claim 1, wherein: the weather-resistant auxiliary agent is one or a combination of more of salicylic acid esters, benzophenones and benzotriazoles.
5. The long glass fiber reinforced polypropylene composite material for the 5G radome according to claim 1, wherein: the glass beads are hollow glass beads.
6. The long glass fiber reinforced polypropylene composite material for the 5G radome according to claim 1, wherein: the antioxidant is one or a combination of a plurality of hindered phenol antioxidants 1010, phosphite antioxidants 168, nitrogen oxide-resistant antioxidants GA80 and the like.
7. The long glass fiber reinforced polypropylene composite material for the 5G radome of any one of claims 1-6, wherein: the method comprises the following steps:
(1) weighing the raw materials of the polypropylene resin, the toughening agent, the glass beads and other auxiliaries according to the weight ratio, putting the weighed raw materials into a high-speed mixer, uniformly mixing, and then feeding the mixture into an impregnation tank through a double-screw extruder;
(2) and (3) carrying out bracing, cooling, granulating and drying treatment on the continuous glass fiber after passing through the impregnation tank.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112409696A (en) * | 2020-12-22 | 2021-02-26 | 苏州润佳工程塑料股份有限公司 | Modified plastic for 5G antenna housing |
| CN112457581A (en) * | 2020-11-18 | 2021-03-09 | 江苏金发科技新材料有限公司 | Glass fiber reinforced polypropylene composite material for 5G antenna housing and preparation method thereof |
| CN112724515A (en) * | 2020-12-25 | 2021-04-30 | 郑州圣莱特空心微珠新材料有限公司 | Beautifying radome base material and preparation method thereof |
| CN113736180A (en) * | 2020-05-28 | 2021-12-03 | 广州合成材料研究院有限公司 | Special polypropylene material for weather-resistant soft floor and preparation method thereof |
| CN113736182A (en) * | 2021-09-26 | 2021-12-03 | 金旸（厦门）新材料科技有限公司 | Polypropylene composite material with low linear expansion coefficient and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736180A (en) * | 2020-05-28 | 2021-12-03 | 广州合成材料研究院有限公司 | Special polypropylene material for weather-resistant soft floor and preparation method thereof |
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| CN112457581B (en) * | 2020-11-18 | 2023-10-13 | 江苏金发科技新材料有限公司 | Glass fiber reinforced polypropylene composite material for 5G radome and preparation method thereof |
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| CN112724515A (en) * | 2020-12-25 | 2021-04-30 | 郑州圣莱特空心微珠新材料有限公司 | Beautifying radome base material and preparation method thereof |
| CN113736182A (en) * | 2021-09-26 | 2021-12-03 | 金旸（厦门）新材料科技有限公司 | Polypropylene composite material with low linear expansion coefficient and preparation method thereof |
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