CN110951229B - High-toughness high-hardness PC material and preparation method thereof - Google Patents
High-toughness high-hardness PC material and preparation method thereof Download PDFInfo
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- CN110951229B CN110951229B CN201911188149.6A CN201911188149A CN110951229B CN 110951229 B CN110951229 B CN 110951229B CN 201911188149 A CN201911188149 A CN 201911188149A CN 110951229 B CN110951229 B CN 110951229B
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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
- 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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The invention discloses a high-toughness high-hardness PC material and a preparation method thereof, wherein the high-toughness high-hardness PC material comprises 80-99 parts by weight of PC, 0.2-20 parts by weight of a surface hardness modifier, 1-10 parts by weight of an impact modifier, 0.1-2 parts by weight of a lubricating dispersant, 0.1-2 parts by weight of a pigment, 0.1-0.5 part by weight of an antioxidant and 0.1-1 part by weight of an anti-ultraviolet agent. The material overcomes the conflict between the surface hardness and the impact toughness, and has high surface hardness and good toughness; the surface pencil hardness reaches H or 2H, and the impact strength is kept at 10KJ/m2The use requirements of toughness and hardness are met, and the application range of the PC material is widened.
Description
Technical Field
The invention belongs to the field of materials, and particularly relates to a high-toughness high-hardness PC material and a preparation method thereof.
Background
Polycarbonate (PC) resin is thermoplastic engineering plastic with excellent comprehensive performance in general engineering plastics, is known to have high impact strength, excellent electrical insulation, higher heat resistance, cold resistance (capable of being used within the temperature range of-100-140 ℃), creep resistance, ultraviolet radiation resistance and electric resistance, good dimensional stability, certain flame retardance and wide application in products such as household appliances, automobiles, electronic appliances and the like. The surface hardness of the PC is 2B, and due to the low surface hardness, when the PC is slightly stressed by scraping, finger scratching, rag wiping and the like in the using process of a product, fine marks and scratches are easily generated on the surface, so that the appearance is influenced. At present, in the market, high-hardness PC is developed by manufacturers, the surface pencil hardness reaches HB, and the impact strength is 10KJ/m2The surface pencil hardness reaches H, and the impact strength is 5KJ/m2There are disadvantages of poor toughness and low impact strength, and it is important to develop a method for producing a high-hardness PC material while maintaining high toughness.
Disclosure of Invention
In order to solve the technical problems, the invention discloses a high-toughness high-hardness PC material and a preparation method thereof. The material overcomes the conflict between the surface hardness and the impact toughness, and has high surface hardness and good toughness; the surface pencil hardness reaches H or 2H, and the impact strength is kept at 10KJ/m2The use requirements of toughness and hardness are met, and the application range of the PC material is widened.
The purpose of the invention is realized by the following technical scheme:
the high-toughness high-hardness PC material is characterized by comprising 80-99 parts by weight of PC, 0.2-20 parts by weight of a surface hardness modifier, 1-10 parts by weight of an impact modifier, 0.1-2 parts by weight of a lubricating dispersant, 0.1-2 parts by weight of a pigment, 0.1-0.5 part by weight of an antioxidant and 0.1-1 part by weight of an anti-ultraviolet agent.
Further improved, the surface hardness modifier is one or more of acrylic copolymer, organic silicon modified acrylic copolymer or acrylic acid modified polytetrafluoroethylene fiber.
In a further improvement, the impact modifier is one or more of organic silicon modified rubber, acrylic acid modified rubber, organic silicon/acrylic acid composite modified rubber, maleic anhydride modified rubber or epoxy modified rubber.
In a further improvement, the antioxidant is one or more of a phenol antioxidant, a phosphite antioxidant or a metal ion passivator.
The further improvement is that the antioxidant is 1010, 168, DLTP, triphenyl phosphite, tributyl sulfite, saldimine or oxamide.
In a further improvement, the anti-ultraviolet agent is a UV absorbent.
In a further improvement, the pigment is an organic pigment or an inorganic pigment.
In a further refinement, the organic pigments include carbon black, azo pigments, phthalocyanines, quinophthalones, perylenes, isoindolones, anthraquinones, and thioindigoids; the inorganic pigments include titanium dioxide, iron oxide, zinc oxide, chromates, and cadmium compounds.
A preparation method of a high-toughness high-hardness PC material comprises the following steps:
drying PC for more than 4 hours in an environment of 90 ℃ in an air drying oven, then putting 80-99 parts by weight of PC, 0.2-20 parts by weight of surface hardness modifier, 1-10 parts by weight of impact modifier, 0.1-2 parts by weight of lubricating dispersant, 0.1-2 parts by weight of pigment, 0.1-0.5 part by weight of antioxidant and 0.1-1 part by weight of anti-ultraviolet agent into a high-speed stirring pot, stirring for 3-5 minutes at a rotating speed of 300-400 r/min, pouring into a double-screw extruder, and forming plastic particles after screw shearing, extruding, cooling, blow-drying and grain cutting to obtain the high-toughness high-hardness PC material.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
In the embodiment, the manufacturing method of the invention is as follows:
drying the PC material for more than 4 hours in an environment of 90 ℃ in a blast drying oven, sequentially weighing the raw materials according to a preset weight ratio, putting the raw materials into a high-speed stirring pot, stirring the raw materials for 3 to 5 minutes at a rotating speed of 300 to 400r/min, pouring the raw materials into a double-screw extruder, extruding the raw materials at a temperature of 200 to 260 ℃, and shearing, extruding, cooling, blow-drying and granulating the raw materials into plastic particles by a screw.
Example 1
The material ratio is as follows:
example 2
The material ratio is as follows:
example 3
The material ratio is as follows:
the properties of the product of the three examples of the invention are as follows:
while embodiments of the invention have been described above, it is not limited to the applications set forth in the specification and the embodiments, which are fully applicable to various fields of endeavor for which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the specific details shown and described herein without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. A high-toughness high-hardness PC material is characterized by comprising 80-99 parts by weight of PC, 3-20 parts by weight of a surface hardness modifier, 1-10 parts by weight of an impact modifier, 0.1-2 parts by weight of a lubricating dispersant, 0.1-2 parts by weight of a pigment, 0.1-0.5 part by weight of an antioxidant and 0.1-1 part by weight of an anti-ultraviolet agent; the surface hardness modifier is acrylic acid modified polytetrafluoroethylene fiber; the impact modifier is one or more of organic silicon modified rubber, acrylic acid modified rubber, organic silicon/acrylic acid composite modified rubber, maleic anhydride modified rubber or epoxy modified rubber.
2. The high toughness, high hardness PC material of claim 1 wherein said antioxidant is one or more of a phenolic antioxidant, a phosphite antioxidant or a metal ion deactivator.
3. The high toughness, high hardness PC material of claim 1 wherein said antioxidant is antioxidant 1010, antioxidant 168, DLTP, triphenyl phosphite, bis-salicylidene diamine or oxamide.
4. The high toughness, high hardness PC material of claim 1 wherein said anti-UV agent is a UV absorber.
5. The high toughness, high hardness PC material of claim 1 wherein said pigment is one or more of an organic pigment or an inorganic pigment.
6. The high toughness, high hardness PC material of claim 5, wherein the organic pigments comprise azo pigments, phthalocyanines, quinophthalones, perylenes, isoindolones, anthraquinones, and thioindigoids; the inorganic pigments include carbon black, titanium dioxide, iron oxide, zinc oxide, chromates, and cadmium compounds.
7. A method for producing a high toughness, high hardness PC material according to claim 1, comprising the steps of:
drying PC for more than 4 hours in an environment of 90 ℃ in an air drying oven, then putting 80-99 parts by weight of PC, 3-20 parts by weight of surface hardness modifier, 1-10 parts by weight of impact modifier, 0.1-2 parts by weight of lubricating dispersant, 0.1-2 parts by weight of pigment, 0.1-0.5 part by weight of antioxidant and 0.1-1 part by weight of anti-ultraviolet agent into a high-speed stirring pot, stirring for 3-5 minutes at a rotating speed of 300-400 r/min, pouring into a double-screw extruder, extruding at a temperature of 200-260 ℃, shearing, extruding, cooling, blow-drying and dicing into plastic particles to obtain the high-toughness high-hardness PC material.
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| CN201911188149.6A CN110951229B (en) | 2019-11-28 | 2019-11-28 | High-toughness high-hardness PC material and preparation method thereof |
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| CN201911188149.6A CN110951229B (en) | 2019-11-28 | 2019-11-28 | High-toughness high-hardness PC material and preparation method thereof |
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| CN110951229A CN110951229A (en) | 2020-04-03 |
| CN110951229B true CN110951229B (en) | 2021-09-17 |
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| CN114835928A (en) * | 2022-04-29 | 2022-08-02 | 贵州省材料产业技术研究院 | High cold-resistant hydrogenated nitrile rubber material and preparation method thereof |
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| JPS6436443A (en) * | 1987-07-31 | 1989-02-07 | Sekisui Seikei Kogyo Kk | Manufacture of reinforced glass and reinforcement sheet |
| CN102532853A (en) * | 2012-01-09 | 2012-07-04 | 东莞劲胜精密组件股份有限公司 | High-hardness and scratch-resistant modified PC (Poly Carbonate) material and preparation method thereof |
| CN103013077A (en) * | 2012-12-14 | 2013-04-03 | 上海锦湖日丽塑料有限公司 | Ultraviolet (UV) curing scratch-resistant polycarbonate and preparation method thereof |
| CN106589880A (en) * | 2016-11-16 | 2017-04-26 | 上海长伟锦磁工程塑料有限公司 | Transparent low-temperature-resistant scuffing-resistant polycarbonate composite material |
| CN107163589A (en) * | 2017-06-07 | 2017-09-15 | 赵�卓 | 3D printing paraffin type moulding material and preparation method thereof |
-
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- 2019-11-28 CN CN201911188149.6A patent/CN110951229B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6436443A (en) * | 1987-07-31 | 1989-02-07 | Sekisui Seikei Kogyo Kk | Manufacture of reinforced glass and reinforcement sheet |
| CN102532853A (en) * | 2012-01-09 | 2012-07-04 | 东莞劲胜精密组件股份有限公司 | High-hardness and scratch-resistant modified PC (Poly Carbonate) material and preparation method thereof |
| CN103013077A (en) * | 2012-12-14 | 2013-04-03 | 上海锦湖日丽塑料有限公司 | Ultraviolet (UV) curing scratch-resistant polycarbonate and preparation method thereof |
| CN106589880A (en) * | 2016-11-16 | 2017-04-26 | 上海长伟锦磁工程塑料有限公司 | Transparent low-temperature-resistant scuffing-resistant polycarbonate composite material |
| CN107163589A (en) * | 2017-06-07 | 2017-09-15 | 赵�卓 | 3D printing paraffin type moulding material and preparation method thereof |
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