CN112175332A - Preparation method of novel plastic raw material - Google Patents
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- 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
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- C08K3/20—Oxides; Hydroxides
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/20—Oxides; Hydroxides
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- C08K2003/2241—Titanium dioxide
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- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
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- C08K2003/322—Ammonium phosphate
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Abstract
The invention relates to the technical field of plastic raw material preparation, in particular to a preparation method of a novel plastic raw material, which comprises the following preparation steps: s1, selecting the following raw materials in parts by weight; s2, raw material treatment: adding the selected raw materials into a stirrer according to a ratio for stirring and mixing, and then sequentially adding the auxiliary agents into the stirrer according to the ratio; s3, drying; s4, extrusion molding; s5, cooling and pelletizing: and (5) cooling the raw material formed in the step (S4), and granulating the cooled raw material to obtain the novel plastic raw material. According to the invention, in the preparation of the plastic raw material, graphene is used as the preparation raw material, and the surface of the filler particles is difficult to wet by the resin matrix due to the difference of surface tension between the inorganic filler particles and the matrix, so that gaps exist between the graphene and the polyacrylate, thereby increasing the interface thermal resistance of the high-molecular composite material and increasing the thermal conductivity of the thermoplastic raw material.
Description
Technical Field
The invention relates to the technical field of plastic raw material preparation, in particular to a preparation method of a novel plastic raw material.
Background
Plastics are a commonly used raw material in daily life, and the main component of the plastics is resin. Plastics are also widely used in LED light fixtures. The advantages and disadvantages of the common plastic are obvious, wherein the conventional PC plastic has many use limitations due to the phenomena of light leakage and light scattering in the LED light source product caused by the high transparency of the conventional PC plastic.
Therefore, in the LED lamp, the light source may be lost due to the poor light shielding effect of the plastic housing. In the use, because the long-term illumination influence, its ageing resistance is relatively poor, and flame retardant efficiency is not very good yet to LED when long-term luminous, produces a large amount of heats, and heat dispersion is poor, brings a great deal of inconvenience for the in-service use, can't satisfy the strict demand in market.
Therefore, a novel preparation method of the plastic raw material is provided to solve the problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a preparation method of a novel plastic raw material.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of a novel plastic raw material comprises the following preparation steps:
s1, selecting the following raw materials in parts by weight: 50-100 parts of polyacrylate, 40-80 parts of graphene and 28-48 parts of titanium dioxide;
the following auxiliary agents in parts by weight are also selected: 10-30 parts of a flame retardant, 25-40 parts of an antioxidant, 18-22 parts of a compatilizer and 5-10 parts of a lubricant;
s2, raw material treatment: adding the selected raw materials into a stirrer according to a ratio for stirring and mixing, and then sequentially adding the auxiliary agents into the stirrer according to the ratio to mix the raw materials and the auxiliary agents with each other to obtain a mixed material;
s3, drying: putting the mixed material in the S2 into a dryer for drying treatment, wherein the drying temperature is set to be 70-100 ℃, and the drying time is set to be 8-15 min;
s4, extrusion molding: adding the dried raw materials into a parallel double-screw extruder, and extruding and molding the raw materials;
s5, cooling and pelletizing: and (5) cooling the raw material formed in the step (S4), and granulating the cooled raw material to obtain the novel plastic raw material.
Preferably, the following raw materials in parts by weight are selected: 80 parts of polyacrylate, 60 parts of graphene and 35 parts of titanium dioxide, and the following auxiliary agents in parts by weight are also selected: 15 parts of flame retardant, 30 parts of antioxidant, 20 parts of compatilizer and 8 parts of lubricant.
Preferably, the stirring speed of the stirrer in the S1 is 400-800 r/min, the stirring time is 30-50 min, and the feeding interval time is controlled to be 3 min.
Preferably, the flame retardant is selected from one of aluminum hydroxide, magnesium hydroxide, diammonium phosphate, ammonium chloride and boric acid.
Preferably, the antioxidant is selected to be a hindered phenolic antioxidant.
Preferably, the compatibilizing agent is selected to be of the imide type.
Preferably, the lubricant is selected from one of stearamide, N, ethylene bis stearamide and N-butyl stearate.
The invention has the beneficial effects that:
1. according to the invention, in the preparation of the plastic raw material, graphene is used as the preparation raw material, and the surface of the filler particles is difficult to wet by the resin matrix due to the difference of surface tension between the inorganic filler particles and the matrix, so that gaps exist between the graphene and the polyacrylate, thereby increasing the interface thermal resistance of the high-molecular composite material and increasing the thermal conductivity of the thermoplastic raw material.
2. According to the invention, the flame retardant, the compatilizer and the antioxidant are added into the plastic raw material, so that the thermoplastic raw material has good flame retardant property and anti-aging property, and the service life of the plastic raw material is prolonged.
Drawings
FIG. 1 is a schematic flow structure diagram of a method for preparing a novel plastic material according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1: referring to fig. 1, a preparation method of a novel plastic raw material comprises the following preparation steps:
s1, selecting the following raw materials in parts by weight: 50 parts of polyacrylate, 40 parts of graphene and 28 parts of titanium dioxide, and the following auxiliary agents in parts by weight are also selected: 10 parts of flame retardant, 25 parts of antioxidant, 18 parts of compatilizer and 5 parts of lubricant;
s2, raw material treatment: adding the selected raw materials into a stirrer according to a ratio for stirring and mixing, and then sequentially adding the auxiliary agents into the stirrer according to the ratio to mix the raw materials and the auxiliary agents with each other to obtain a mixed material;
s3, drying: putting the mixed material in the S2 into a dryer for drying treatment, setting the drying temperature to be 70 ℃ and the drying time to be 8 min;
s4, extrusion molding: adding the dried raw materials into a parallel double-screw extruder, and extruding and molding the raw materials;
s5, cooling and pelletizing: and (5) cooling the raw material formed in the step (S4), and granulating the cooled raw material to obtain the novel plastic raw material.
In S1, the stirring speed of the stirrer is 400r/min, the stirring time is 30min, and the feeding interval time is controlled to be 3 min.
Example 2: referring to fig. 1, a preparation method of a novel plastic raw material comprises the following preparation steps:
s1, selecting the following raw materials in parts by weight: 60 parts of polyacrylate, 50 parts of graphene and 32 parts of titanium dioxide, and the following auxiliary agents in parts by weight are also selected: 12 parts of flame retardant, 28 parts of antioxidant, 19 parts of compatilizer and 6 parts of lubricant;
s2, raw material treatment: adding the selected raw materials into a stirrer according to a ratio for stirring and mixing, and then sequentially adding the auxiliary agents into the stirrer according to the ratio to mix the raw materials and the auxiliary agents with each other to obtain a mixed material;
s3, drying: putting the mixed material in the S2 into a dryer for drying treatment, setting the drying temperature to be 70 ℃ and the drying time to be 8 min;
s4, extrusion molding: adding the dried raw materials into a parallel double-screw extruder, and extruding and molding the raw materials;
s5, cooling and pelletizing: and (5) cooling the raw material formed in the step (S4), and granulating the cooled raw material to obtain the novel plastic raw material.
In S1, the stirring speed of the stirrer is 400r/min, the stirring time is 30min, and the feeding interval time is controlled to be 3 min.
Example 3: referring to fig. 1, a preparation method of a novel plastic raw material comprises the following preparation steps:
s1, selecting the following raw materials in parts by weight: 80 parts of polyacrylate, 60 parts of graphene and 35 parts of titanium dioxide, and the following auxiliary agents in parts by weight are also selected: 15 parts of flame retardant, 30 parts of antioxidant, 20 parts of compatilizer and 8 parts of lubricant;
s2, raw material treatment: adding the selected raw materials into a stirrer according to a ratio for stirring and mixing, and then sequentially adding the auxiliary agents into the stirrer according to the ratio to mix the raw materials and the auxiliary agents with each other to obtain a mixed material;
s3, drying: putting the mixed material in the S2 into a dryer for drying treatment, setting the drying temperature to be 80 ℃ and the drying time to be 10 min;
s4, extrusion molding: adding the dried raw materials into a parallel double-screw extruder, and extruding and molding the raw materials;
s5, cooling and pelletizing: and (5) cooling the raw material formed in the step (S4), and granulating the cooled raw material to obtain the novel plastic raw material.
In S1, the stirring speed of the stirrer is 600r/min, the stirring time is 40min, and the feeding interval time is controlled to be 3 min.
Example 4: referring to fig. 1, a preparation method of a novel plastic raw material comprises the following preparation steps:
s1, selecting the following raw materials in parts by weight: 90 parts of polyacrylate, 70 parts of graphene and 40 parts of titanium dioxide, and the following auxiliary agents in parts by weight are also selected: 25 parts of flame retardant, 35 parts of antioxidant, 21 parts of compatilizer and 9 parts of lubricant;
s2, raw material treatment: adding the selected raw materials into a stirrer according to a ratio for stirring and mixing, and then sequentially adding the auxiliary agents into the stirrer according to the ratio to mix the raw materials and the auxiliary agents with each other to obtain a mixed material;
s3, drying: putting the mixed material in the S2 into a dryer for drying treatment, setting the drying temperature at 100 ℃ and the drying time at 15 min;
s4, extrusion molding: adding the dried raw materials into a parallel double-screw extruder, and extruding and molding the raw materials;
s5, cooling and pelletizing: and (5) cooling the raw material formed in the step (S4), and granulating the cooled raw material to obtain the novel plastic raw material.
In S1, the stirring speed of the stirrer is 800r/min, the stirring time is 50min, and the feeding interval time is controlled to be 3 min.
Example 5: referring to fig. 1, a preparation method of a novel plastic raw material comprises the following preparation steps:
s1, selecting the following raw materials in parts by weight: 100 parts of polyacrylate, 80 parts of graphene and 48 parts of titanium dioxide, and the following auxiliary agents in parts by weight are also selected: 30 parts of flame retardant, 40 parts of antioxidant, 22 parts of compatilizer and 10 parts of lubricant;
s2, raw material treatment: adding the selected raw materials into a stirrer according to a ratio for stirring and mixing, and then sequentially adding the auxiliary agents into the stirrer according to the ratio to mix the raw materials and the auxiliary agents with each other to obtain a mixed material;
s3, drying: putting the mixed material in the S2 into a dryer for drying treatment, setting the drying temperature at 100 ℃ and the drying time at 15 min;
s4, extrusion molding: adding the dried raw materials into a parallel double-screw extruder, and extruding and molding the raw materials;
s5, cooling and pelletizing: and (5) cooling the raw material formed in the step (S4), and granulating the cooled raw material to obtain the novel plastic raw material.
In S1, the stirring speed of the stirrer is 800r/min, the stirring time is 50min, and the feeding interval time is controlled to be 3 min.
As can be seen from the above examples 1 to 5, the results of the property test of the prepared plastic materials are as follows;
| example one | Example two | EXAMPLE III | Example four | EXAMPLE five | |
| Thermal conductivity | Is excellent in | Good effect | Is excellent in | Good effect | Is excellent in |
| Flame retardancy | Good effect | Is excellent in | Is excellent in | Good effect | Good effect |
| Anti-aging property | Good effect | Good effect | Is excellent in | Is excellent in | Good effect |
According to the embodiment, in the preparation of the plastic raw material, the graphene is used as the preparation raw material, and the surface of the filler particle is difficult to wet by the resin matrix due to the difference of the surface tension between the inorganic filler particle and the matrix, so that the graphene and the polyacrylate have a gap, the interface thermal resistance of the polymer composite material is increased, the thermal conductivity of the thermoplastic raw material is increased, and the heat dissipation performance of the LED lamp is increased when the plastic raw material is applied to the LED lamp.
The flame retardant, the compatilizer and the antioxidant are added into the plastic raw material, so that the thermoplastic raw material has good flame retardant property and anti-aging property, and the service life of the plastic raw material is prolonged.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment 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 to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The preparation method of the novel plastic raw material is characterized by comprising the following preparation steps:
s1, selecting the following raw materials in parts by weight: 50-100 parts of polyacrylate, 40-80 parts of graphene and 28-48 parts of titanium dioxide;
the following auxiliary agents in parts by weight are also selected: 10-30 parts of a flame retardant, 25-40 parts of an antioxidant, 18-22 parts of a compatilizer and 5-10 parts of a lubricant;
s2, raw material treatment: adding the selected raw materials into a stirrer according to a ratio for stirring and mixing, and then sequentially adding the auxiliary agents into the stirrer according to the ratio to mix the raw materials and the auxiliary agents with each other to obtain a mixed material;
s3, drying: putting the mixed material in the S2 into a dryer for drying treatment, wherein the drying temperature is set to be 70-100 ℃, and the drying time is set to be 8-15 min;
s4, extrusion molding: adding the dried raw materials into a parallel double-screw extruder, and extruding and molding the raw materials;
s5, cooling and pelletizing: and (5) cooling the raw material formed in the step (S4), and granulating the cooled raw material to obtain the novel plastic raw material.
2. The preparation method of the novel plastic raw material as claimed in claim 1, wherein the following raw materials are selected in parts by weight: 80 parts of polyacrylate, 60 parts of graphene and 35 parts of titanium dioxide, and the following auxiliary agents in parts by weight are also selected: 15 parts of flame retardant, 30 parts of antioxidant, 20 parts of compatilizer and 8 parts of lubricant.
3. The method for preparing a novel plastic material as claimed in claim 1, wherein the stirring speed of the stirrer in S1 is 400-800 r/min, the stirring time is 30-50 min, and the feeding interval time is controlled to be 3 min.
4. The method for preparing a novel plastic raw material as claimed in claim 1, wherein the flame retardant is selected from one of aluminum hydroxide, magnesium hydroxide, diammonium phosphate, ammonium chloride and boric acid.
5. The method for preparing a novel plastic material as claimed in claim 1, wherein the antioxidant is selected from hindered phenolic antioxidants.
6. The method for preparing a novel plastic material as claimed in claim 1, wherein the compatibilizer is selected to be imide type.
7. The method for preparing a novel plastic material as claimed in claim 1, wherein the lubricant is selected from one of stearic acid amide, N, ethylene bis-stearamide and N-butyl stearate.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040761A (en) * | 2011-01-14 | 2011-05-04 | 华南理工大学 | High-heat-conductivity composite material and preparation method thereof |
| CN104419202A (en) * | 2013-09-11 | 2015-03-18 | 安徽科聚新材料有限公司 | Abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and preparation method thereof |
| CN107474354A (en) * | 2017-07-26 | 2017-12-15 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of high dispersive graphene heat-conducting plastic preparation method and products thereof and application |
| CN107987444A (en) * | 2017-12-12 | 2018-05-04 | 常州工程职业技术学院 | A kind of graphene/PMMA heat-conductive composite materials, preparation method and applications |
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2020
- 2020-10-15 CN CN202011103668.0A patent/CN112175332A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040761A (en) * | 2011-01-14 | 2011-05-04 | 华南理工大学 | High-heat-conductivity composite material and preparation method thereof |
| CN104419202A (en) * | 2013-09-11 | 2015-03-18 | 安徽科聚新材料有限公司 | Abrasion-resistant polytetrafluoroethylene and aramid fiber reinforced-modified PA66 material and preparation method thereof |
| CN107474354A (en) * | 2017-07-26 | 2017-12-15 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of high dispersive graphene heat-conducting plastic preparation method and products thereof and application |
| CN107987444A (en) * | 2017-12-12 | 2018-05-04 | 常州工程职业技术学院 | A kind of graphene/PMMA heat-conductive composite materials, preparation method and applications |
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