CN110982237A - Anti-shielding composite material for 5G mobile phone cover plate and preparation method thereof - Google Patents
Anti-shielding composite material for 5G mobile phone cover plate and preparation method thereof Download PDFInfo
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- CN110982237A CN110982237A CN201911305065.6A CN201911305065A CN110982237A CN 110982237 A CN110982237 A CN 110982237A CN 201911305065 A CN201911305065 A CN 201911305065A CN 110982237 A CN110982237 A CN 110982237A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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Abstract
The invention relates to the technical field of polymer material preparation, and discloses an anti-shielding composite material for a 5G mobile phone cover plate and a preparation method thereof, wherein the composite material comprises the following components in parts by mass: PC55-75 parts, PMMA25-30 parts, toughening agent 3-7 parts, nano zirconium oxide 8-15 parts, surface hardness modifier 3-4 parts, antioxidant 0.9-1.6 parts, weather resistant agent 0.1-2 parts, and dye 0.3-3 parts. According to the anti-shielding composite material for the 5G mobile phone cover plate and the preparation method thereof, the time and difficulty consumed in the preparation process are reduced, time and labor are saved, the preparation efficiency of the composite material is improved, and the preparation quality of the composite material is improved by improving the existing composite material preparation process.
Description
Technical Field
The invention relates to the technical field of polymer material preparation, in particular to an anti-shielding composite material for a 5G mobile phone cover plate and a preparation method thereof.
Background
The 5G mobile phone is a smart phone using a fifth generation communication system, compared with a 4G mobile phone, the 5G mobile phone has higher transmission speed and low time delay, and has more accurate positioning through a network slicing technology, recently, a composite board becomes a research hotspot of a 3D mobile phone cover plate material in the later 4G era, and is gradually favored by each mobile phone terminal due to incomparable advantages of a 3D glass cover plate in cost, product yield and process, and the composite board is a board prepared by compounding two highly transparent plastics of PC and PMMA through a co-extrusion technology and comprises a PC layer and a PMA layer, so that the composite board has the hardness and wear resistance of PMMA and also has the impact toughness of the PC. And has excellent light transmission performance, and can be used for various optical designs.
The existing anti-shielding composite material has low preparation efficiency of the composite board due to poor process and more preparation steps of the composite material in the preparation process, and the quality of the anti-shielding composite material is seriously influenced due to the poor process.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an anti-shielding composite material for a 5G mobile phone cover plate and a preparation method thereof, which have the advantages of improving the preparation process of the existing composite material, reducing the time and difficulty consumed in the preparation process, saving time and labor, improving the preparation efficiency of the composite material, improving the preparation quality of the composite material and the like, and solve the problems that the preparation efficiency of a composite plate is lower and the quality of the anti-shielding composite material is seriously influenced by the poor process and more preparation steps of the composite material in the preparation process of the anti-shielding composite material.
(II) technical scheme
In order to achieve the purposes of improving the existing composite material preparation process, reducing the time and difficulty consumed in the preparation process, saving time and labor, improving the composite material preparation efficiency and improving the composite material preparation quality, the invention provides the following technical scheme: the anti-shielding composite material for the 5G mobile phone cover plate comprises the following components in parts by mass: PC55-75 parts, PMMA25-30 parts, toughening agent 3-7 parts, nano zirconium oxide 8-15 parts, surface hardness modifier 3-4 parts, antioxidant 0.9-1.6 parts, weather resistant agent 0.1-2 parts, and dye 0.3-3 parts.
Preferably, the material of the PC is polycarbonate, and the polycarbonate is a high molecular polymer containing a carbonate group in a molecular chain.
Preferably, the material of the PMMA is polymethyl methacrylate, and the polymethyl methacrylate is a long-chain high molecular polymer.
Preferably, the plasticizer is phthalate.
Preferably, the weather-resistant agent is a benzotriazole absorbent.
Preferably, the antioxidant is made of phosphite ester.
Preferably, the surface of the nano zirconia is modified by silane, the particle size is 26-37nm, and the surface hardness modifier is made of phenylmethylsilicon.
A preparation method of an anti-shielding composite material for a 5G mobile phone cover plate comprises the following steps;
firstly, weighing raw materials, namely firstly, installing and weighing PC, PMMA, a toughening agent, nano zirconia, a surface hardness modifier, an antioxidant, a weather-resistant agent and dye in respective proportions;
secondly, mixing the raw materials, pouring the raw materials of each component into a reaction kettle, and then stirring for 20-30 minutes by a stirrer in the reaction kettle;
thirdly, heating the mixture in a reaction kettle to enable the raw materials to be fused, and mixing and stirring the mixture for 1 to 2 hours by a stirrer in the reaction kettle;
fourthly, taking out the composite material from the reaction kettle, putting the composite material into an extrusion die, and extruding the composite material into a composite board;
and fifthly, cooling the extrusion die to solidify the composite material, and finally taking out the composite plate from the extrusion die.
(III) advantageous effects
Compared with the prior art, the invention provides an anti-shielding composite material for a 5G mobile phone cover plate and a preparation method thereof, and the composite material has the following beneficial effects:
according to the anti-shielding composite material for the 5G mobile phone cover plate and the preparation method thereof, the composite material produced by combining PC and PMMA has excellent wear resistance, light transmittance and hardness, and the preparation process comprises the first step of weighing raw materials, namely, firstly, installing PC, PMMA, a toughening agent, nano zirconia, a surface hardness modifier, an antioxidant, a weather resisting agent and dye in respective proportions and weighing; secondly, mixing the raw materials, pouring the raw materials of each component into a reaction kettle, and then stirring for 20-30 minutes by a stirrer in the reaction kettle; thirdly, heating the mixture in a reaction kettle to enable the raw materials to be fused, and mixing and stirring the mixture for 1 to 2 hours by a stirrer in the reaction kettle; fourthly, taking out the composite material from the reaction kettle, putting the composite material into an extrusion die, and extruding the composite material into a composite board; and fifthly, cooling the extrusion die to solidify the composite material, and finally taking out the composite plate from the extrusion die.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The anti-shielding composite material for the 5G mobile phone cover plate comprises the following components in parts by mass: PC55-75 parts, PMMA25-30 parts, toughening agent 3-7 parts, nano zirconium oxide 8-15 parts, surface hardness modifier 3-4 parts, antioxidant 0.9-1.6 parts, weather resistant agent 0.1-2 parts, and dye 0.3-3 parts.
The PC is made of polycarbonate, the polycarbonate is a high molecular polymer with a carbonate group in a molecular chain, and the polycarbonate has high flame retardance and oxidation resistance, so that the service life of the 5G mobile phone cover plate can be effectively prolonged.
The PMMA is made of polymethyl methacrylate which is a long-chain high-molecular polymer, the density of the polymethyl methacrylate is about 1.15-1.19G/cm3, the polymethyl methacrylate is half of glass and 43% of metal aluminum, and therefore the weight of the 5G mobile phone cover plate can be reduced, the cover plate is lighter, and the comfort of use of the 5G mobile phone cover plate is improved.
The plasticizer is made of phthalate, and mainly has the effects of weakening the secondary valence bonds among resin molecules, increasing the mobility of the resin molecular bonds, reducing the crystallinity of the resin molecules, increasing the plasticity of the resin molecules, enhancing the flexibility of the resin molecules and facilitating the processing.
The weather resisting agent is benzotriazole absorbent, and the benzotriazole is prepared by dissolving phthalic triamine in 50 deg.C water, adding glacial acetic acid, cooling to 5 deg.C, adding sodium nitrite, and stirring for reaction. Gradually changing the reactant into dark green, raising the temperature to 70-80 ℃, changing the solution into orange red, standing at room temperature for 2h, cooling, filtering out crystals, washing with ice water, drying to obtain a crude product, carrying out reduced pressure distillation on the crude product, collecting fractions at the temperature of 201 ℃ and 204 ℃, and then recrystallizing with benzene to obtain the product. The antioxidant is made of phosphite ester, the phosphite ester belongs to an auxiliary antioxidant, plays an important role in an antioxidant system, has excellent capability of decomposing hydroperoxide, simultaneously has good color protection capability, and can bleach the dyeing group of the hindered phenol antioxidant after being oxidized. In addition, it can raise the processing temperature of the polymer and has excellent synergistic effect with light stabilizer.
The nano zirconia is modified by silane on the surface, the particle size is 26-37nm, and the surface hardness modifier is made of phenylmethylsilicon.
A preparation method of an anti-shielding composite material for a 5G mobile phone cover plate comprises the following steps;
firstly, weighing raw materials, namely firstly, installing and weighing PC, PMMA, a toughening agent, nano zirconia, a surface hardness modifier, an antioxidant, a weather-resistant agent and dye in respective proportions;
secondly, mixing the raw materials, pouring the raw materials of each component into a reaction kettle, and then stirring for 20-30 minutes by a stirrer in the reaction kettle;
thirdly, heating the mixture in a reaction kettle to enable the raw materials to be fused, and mixing and stirring the mixture for 1 to 2 hours by a stirrer in the reaction kettle;
fourthly, taking out the composite material from the reaction kettle, putting the composite material into an extrusion die, and extruding the composite material into a composite board;
and fifthly, cooling the extrusion die to solidify the composite material, and finally taking out the composite plate from the extrusion die.
In summary, the composite material for the anti-shielding 5G mobile phone cover plate and the preparation method thereof have the advantages that the composite material produced by combining PC and PMMA has excellent wear resistance, light transmittance and hardness, and the preparation process comprises the first step of weighing raw materials, namely, firstly, installing PC, PMMA, a toughening agent, nano zirconia, a surface hardness modifier, an antioxidant, a weather-resistant agent and dye in respective proportions and weighing; secondly, mixing the raw materials, pouring the raw materials of each component into a reaction kettle, and then stirring for 20-30 minutes by a stirrer in the reaction kettle; thirdly, heating the mixture in a reaction kettle to enable the raw materials to be fused, and mixing and stirring the mixture for 1 to 2 hours by a stirrer in the reaction kettle; fourthly, taking out the composite material from the reaction kettle, putting the composite material into an extrusion die, and extruding the composite material into a composite board; and fifthly, cooling the extrusion die to solidify the composite material, and finally taking out the composite plate from the extrusion die.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a prevent shielded 5G combined material for cell-phone apron which characterized in that: the composition comprises the following components in parts by weight: PC55-75 parts, PMMA25-30 parts, toughening agent 3-7 parts, nano zirconium oxide 8-15 parts, surface hardness modifier 3-4 parts, antioxidant 0.9-1.6 parts, weather resistant agent 0.1-2 parts, and dye 0.3-3 parts.
2. The composite material for the anti-shielding 5G mobile phone cover plate, according to claim 1, is characterized in that: the PC is made of polycarbonate, and the polycarbonate is a high molecular polymer with a carbonate group in a molecular chain.
3. The composite material for the anti-shielding 5G mobile phone cover plate, according to claim 1, is characterized in that: the PMMA is made of polymethyl methacrylate which is a long-chain high-molecular polymer.
4. The composite material for the anti-shielding 5G mobile phone cover plate, according to claim 1, is characterized in that: the plasticizer is made of phthalate.
5. The composite material for the anti-shielding 5G mobile phone cover plate, according to claim 1, is characterized in that: the weather-resistant agent is made of benzotriazole absorbent.
6. The composite material for the anti-shielding 5G mobile phone cover plate, according to claim 1, is characterized in that: the antioxidant is made of phosphite ester.
7. The composite material for the anti-shielding 5G mobile phone cover plate, according to claim 1, is characterized in that: the surface of the nano zirconia is modified by silane, the particle size is 26-37nm, and the surface hardness modifier is made of phenyl methyl silicon.
8. A preparation method of an anti-shielding composite material for a 5G mobile phone cover plate is characterized by comprising the following steps: comprises the following steps;
firstly, weighing raw materials, namely firstly, installing and weighing PC, PMMA, a toughening agent, nano zirconia, a surface hardness modifier, an antioxidant, a weather-resistant agent and dye in respective proportions;
secondly, mixing the raw materials, pouring the raw materials of each component into a reaction kettle, and then stirring for 20-30 minutes by a stirrer in the reaction kettle;
thirdly, heating the mixture in a reaction kettle to enable the raw materials to be fused, and mixing and stirring the mixture for 1 to 2 hours by a stirrer in the reaction kettle;
fourthly, taking out the composite material from the reaction kettle, putting the composite material into an extrusion die, and extruding the composite material into a composite board;
and fifthly, cooling the extrusion die to solidify the composite material, and finally taking out the composite plate from the extrusion die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911305065.6A CN110982237A (en) | 2019-12-17 | 2019-12-17 | Anti-shielding composite material for 5G mobile phone cover plate and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911305065.6A CN110982237A (en) | 2019-12-17 | 2019-12-17 | Anti-shielding composite material for 5G mobile phone cover plate and preparation method thereof |
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| CN110982237A true CN110982237A (en) | 2020-04-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111808410A (en) * | 2020-06-29 | 2020-10-23 | 山东国瓷功能材料股份有限公司 | PC/PMMA composite material, preparation method thereof and electronic terminal shell |
| CN111925548A (en) * | 2020-08-31 | 2020-11-13 | 东莞市亚仑塑料原料有限公司 | Polycarbonate material with high surface hardness and preparation method thereof |
| CN112795161A (en) * | 2020-12-30 | 2021-05-14 | 广州辰东新材料有限公司 | PC/ABS polymer alloy for improving weld marks of digital product shell and preparation method and application thereof |
| CN113135053A (en) * | 2021-04-23 | 2021-07-20 | 深圳万利科技有限公司 | Printing process of composite material 5G mobile phone backboard |
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| CN101717554A (en) * | 2009-12-16 | 2010-06-02 | 广东盛恒昌化学工业有限公司 | Plastic profiled bar decorative layer combination material with metal-like natural texture, preparation method and application thereof |
| CN102372913A (en) * | 2010-08-13 | 2012-03-14 | 上海锦湖日丽塑料有限公司 | Alloy having excellent weather resistance and preparation method thereof |
| CN110437599A (en) * | 2019-08-29 | 2019-11-12 | 常州威材新材料科技有限公司 | A kind of PC/PMMA alloy material and preparation method thereof |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101717554A (en) * | 2009-12-16 | 2010-06-02 | 广东盛恒昌化学工业有限公司 | Plastic profiled bar decorative layer combination material with metal-like natural texture, preparation method and application thereof |
| CN102372913A (en) * | 2010-08-13 | 2012-03-14 | 上海锦湖日丽塑料有限公司 | Alloy having excellent weather resistance and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111808410A (en) * | 2020-06-29 | 2020-10-23 | 山东国瓷功能材料股份有限公司 | PC/PMMA composite material, preparation method thereof and electronic terminal shell |
| CN111925548A (en) * | 2020-08-31 | 2020-11-13 | 东莞市亚仑塑料原料有限公司 | Polycarbonate material with high surface hardness and preparation method thereof |
| CN112795161A (en) * | 2020-12-30 | 2021-05-14 | 广州辰东新材料有限公司 | PC/ABS polymer alloy for improving weld marks of digital product shell and preparation method and application thereof |
| CN112795161B (en) * | 2020-12-30 | 2022-06-21 | 广州辰东新材料有限公司 | PC/ABS polymer alloy for improving weld marks of digital product shell and preparation method and application thereof |
| CN113135053A (en) * | 2021-04-23 | 2021-07-20 | 深圳万利科技有限公司 | Printing process of composite material 5G mobile phone backboard |
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Application publication date: 20200410 |