CN112778644B - High-transparency PP composite material for cosmetic pencil and preparation method thereof - Google Patents
High-transparency PP composite material for cosmetic pencil and preparation method thereof Download PDFInfo
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- CN112778644B CN112778644B CN202110014249.8A CN202110014249A CN112778644B CN 112778644 B CN112778644 B CN 112778644B CN 202110014249 A CN202110014249 A CN 202110014249A CN 112778644 B CN112778644 B CN 112778644B
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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
- 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
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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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The invention discloses a high-transparency PP composite material for a cosmetic pencil, which comprises the following components in percentage by mass: the transparent PP75-83 parts, the transparent PETG3-5 parts, the LLDPE3-5 parts, the POE-g-GMA6-8 parts, the antioxidant 0.2-0.5 part, the nano metal oxide 2-3 parts, the wetting agent 0.2-0.3 part and the dispersant 1-2 parts, the composite material is synergistically toughened by the PP, LLDPE, POE, the nano metal oxide and PETG multi-component, the light transmittance is improved by the LLDPE, the compatibility of the PETG and PP is improved by taking the POE-g-GMA as the compatilizer, the uniformity of component mixing is improved by the wetting agent and the dispersant, in addition, the nano metal oxide in the components also plays a role in sterilization, the antioxidant improves the antioxidant capacity, and the PP composite material prepared by the formula has extremely high transparency, comprehensive physical performance and bactericidal performance.
Description
Technical Field
The invention relates to the technical field of material preparation, in particular to a high-transparency PP composite material for a cosmetic pencil and a preparation method thereof.
Background
The cosmetic pencil has various types, namely, the cosmetic pencil is used for drawing the contour line of the lip; useful for drawing the entire eyelid; is used for drawing eyebrows; the cosmetic pencil for correcting eye makeup and defects thereof is generally structured in such a way that cream, oil and the like are placed in a shell, the shell in the market is formed by a PP material, the comprehensive performance is good, the light transmittance is high, and the situation inside the shell can be visually observed, but the cosmetic pencil has the defects that the shell is poor in tensile strength, toughness and the like and is easy to deform under extrusion, so that the phenomenon that the internal cream is damaged or the oil is extruded is caused, and the performance of the material is improved by increasing research and development of enterprises and the like in the market, such as addition of additives and the like or multi-component and the like.
Disclosure of Invention
In order to solve at least one technical defect, the invention provides the following technical scheme:
the application document provides a high-transparency PP composite material for a cosmetic pencil, which comprises the following components in percentage by mass:
the composite material is synergistically toughened by using PP, LLDPE, POE, nano metal oxide and PETG multicomponent components, the light transmittance is improved by using LLDPE, the compatibility of PETG and PP is improved by using POE-g-GMA as a compatilizer, the mixing uniformity of the components is improved by using a wetting agent and a dispersing agent, in addition, aiming at the phenomenon that a cosmetic pen is frequently contacted with hands and is easily infected with bacteria, the nano metal oxide in the components also plays a sterilization role, and the antioxidant improves the oxidation resistance.
Further, the antioxidant is a hindered phenol antioxidant or a phosphite antioxidant.
Further, the wetting agent is polyethylene glycol and sodium dodecyl sulfate.
Further, the dispersants are BYK163 and BYK 161.
Further, the nano metal oxide is nano cobalt oxide or nano zinc oxide.
Furthermore, the surface of the nano metal oxide is modified by a coupling agent, so that the dispersibility of the nano metal oxide in the material is improved.
The second aspect of the application provides a preparation method of a high-transparency PP composite material for a cosmetic pencil, which comprises the following steps
1) Uniformly mixing transparent PP, LLDPE, partial antioxidant, dispersant and POE-g-GMA for later use;
2) uniformly mixing transparent PETG, nano metal oxide, wetting agent, the rest POE-g-GMA, antioxidant and dispersing agent for later use;
3) uniformly mixing the materials to be used in the steps 1) and 2), and then putting the materials into a double-screw extruder for extrusion and granulation.
The preparation method adopts a batch mixing mode, the main components are separated according to polarity and non-polarity and mixed with the auxiliary agent, the uniformity of material dispersion is improved, and then blending, extrusion and granulation are carried out, so that the residence time of the materials in the double-screw extruder is short, the shearing and mixing effect is good, the performance is uniform, and the comprehensive performance is improved.
Further, the parameters of the twin-screw extruder were set: the rotating speed of the screw is 110-120r/min, the feeding is 6.0-7.0r/min, the temperature of the feeding section is as follows: 140-: 170 ℃ and 175 ℃, temperature of the plasticizing section: 180 ℃ and 185 ℃; temperature of the exhaust section: 185 ℃ and 190 ℃; temperature of extrusion section: 190 ℃ and 195 ℃.
Aiming at the molding change of the components at different temperatures, low-temperature mixing is selected, the original crystal nucleus remained in the melt at the low temperature is increased, the crystal size is reduced, and the transparency is improved.
Further, the nano metal oxide is soaked in the coupling agent solution for surface modification, and is mixed with other materials after being dried, so that the uniformity of material dispersion is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention designs the formula of the PP composite material in a brand new way, improves the performance by matching the multi-component, optimizes the preparation method of the material, mixes the main component with the auxiliary agent in batches, improves the uniformity of the material, and has outstanding comprehensive performance and high transparency of the prepared material.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention. Experimental procedures in the following examples, where specific conditions are not indicated, are generally conducted under conventional conditions or conditions recommended by the manufacturer, and the amounts indicated in the following examples are parts by weight.
The PP composite material comprises, by weight, 75-83 parts of transparent PP, 3-5 parts of transparent PETG, 3-5 parts of LLDPE, 6-8 parts of POE-g-GMA, 0.2-0.5 part of antioxidant, 2-3 parts of nano metal oxide, 0.2-0.3 part of wetting agent and 1-2 parts of dispersant.
For example, 75 parts of transparent PP, 3 parts of transparent PETG, 3 parts of LLDPE, 6 parts of POE-g-GMA, 0.2 part of antioxidant, 2 parts of nano metal oxide, 0.2 part of wetting agent and 1 part of dispersing agent.
Such as 80 parts of transparent PP, 4 parts of transparent PETG, 4 parts of LLDPE, 7 parts of POE-g-GMA, 0.4 part of antioxidant, 2 parts of nano metal oxide, 0.3 part of wetting agent and 2 parts of dispersing agent.
For example, 83 parts of transparent PP, 5 parts of transparent PETG, 5 parts of LLDPE, 8 parts of POE-g-GMA, 0.5 part of antioxidant, 3 parts of nano metal oxide, 0.3 part of wetting agent, 2 parts of dispersant and the like, and the parts can be selected according to the requirements in the above range.
The preparation method of the high-transparency PP composite material for the cosmetic pencil comprises the following steps:
comprises the following steps
1) Uniformly mixing transparent PP, LLDPE, partial antioxidant, dispersant and POE-g-GMA for later use;
2) uniformly mixing transparent PETG, nano metal oxide, wetting agent, the rest POE-g-GMA, antioxidant and dispersing agent for later use;
3) uniformly mixing the materials to be used in the steps 1) and 2), and then putting the materials into a double-screw extruder for extrusion and granulation.
Wherein in step 1) the antioxidant, dispersant and POE-g-GMA of 1/3 can be optionally mixed with PP or LLDPE, or 1/2 the antioxidant, dispersant and POE-g-GMA can be optionally mixed with PP or LLDPE, or 2/3 the antioxidant, dispersant and POE-g-GMA can be optionally mixed with PP or LLDPE, and in general 1/3-2/3 the antioxidant, dispersant and POE-g-GMA can be optionally mixed with PP or the like in step 1), although ratios other than those listed above can also be used.
Wherein the parameters of the double-screw extruder are set as follows: the rotating speed of the screw is 110-120r/min, the feeding is 6.0-7.0r/min, the temperature of the feeding section is as follows: 140-: 170 ℃ and 175 ℃, temperature of the plasticizing section: 180 ℃ and 185 ℃; temperature of the exhaust section: 185 ℃ and 190 ℃; temperature of extrusion section: 190 ℃ and 195 ℃.
If the screw rotating speed is 120r/min, the feeding is 7.0r/min, the temperature of the feeding section is as follows: 140 ℃, compression stage temperature: 170 ℃, plasticizing zone temperature: 180 ℃; temperature of the exhaust section: 185 ℃ of temperature; temperature of extrusion section: 195 ℃.
Or the rotating speed of the screw is 110r/min, the feeding is 6.0r/min, the temperature of the feeding section is as follows: 160 ℃, compression stage temperature: 170 ℃, plasticizing zone temperature: 180 ℃; temperature of the exhaust section: 190 ℃; temperature of extrusion section: 195 ℃.
Or the rotating speed of the screw is 115r/min, the feeding is 6.0r/min, the temperature of the feeding section is as follows: 150 ℃, compression stage temperature: 173 ℃, temperature of plasticizing zone: 183 ℃; temperature of the exhaust section: 190 ℃; temperature of extrusion section: 190 ℃.
Of course, the setting of parameters other than those listed above can be freely adjusted.
Hereinafter, a composite material was prepared in accordance with specific examples.
The raw materials of the components are as follows:
transparent polypropylene PP, designation K4912, melt flow rate 12g/10 min.
Selecting POE-g-GMA, wherein the POE is selected, the mark is DF710, the melt flow rate is 2.2g/min, and the grafting rate is 2 percent by grafting Glycidyl Methacrylate (GMA) on the POE.
LLDPE, designation 7042, melt flow rate of 1.9 g/min.
PETG, GN120 brand by Issmann.
The antioxidant is 1076.
The wetting agent is polyethylene glycol.
The dispersant was BYK 163.
The nano metal oxide is nano zinc oxide with the particle size of 5 mu m.
The coupling agent is KH550 alcoholic solution with the concentration of 2%.
Performing surface modification on the nano metal oxide, soaking the nano zinc oxide in an alcoholic solution of KH550 for 2h, performing ultrasonic dispersion, stirring at a speed of 35r/min, and drying.
The preparation method of the high-transparency PP composite material for the cosmetic pencil comprises the following steps:
comprises the following steps
1) Uniformly mixing transparent PP, LLDPE, 1/2 antioxidant, dispersant and POE-g-GMA for later use;
2) uniformly mixing transparent PETG, nano metal oxide, wetting agent, the rest POE-g-GMA, antioxidant and dispersing agent for later use;
3) uniformly mixing the materials to be used in the steps 1) and 2), and then placing the materials in a double-screw extruder for extrusion granulation, wherein the parameters of the double-screw extruder are set, the rotating speed of a screw is 120r/min, the feeding is 7.0r/min, and the temperature of a feeding section is as follows: 140 ℃, compression stage temperature: 170 ℃, plasticizing zone temperature: 180 ℃; temperature of the exhaust section: 185 ℃ of temperature; temperature of extrusion section: 195 ℃.
The component ratios in the examples are shown in the following table:
table 1: component ratio of composite material
Note: the components in the above examples are shown in parts by weight.
The preparation methods of comparative examples 1 and 2 are the same as those of example 1.
The preparation method in comparative example 3 is as follows: the components are mixed by a one-pot method, and the components are directly mixed and then placed in a double-screw extruder, and the parameter setting is the same as that of the example 1.
The prepared composite material was subjected to performance testing as shown in table 2.
Table 2: examination of materials prepared in examples and comparative examples
Note: the tensile strength/MPa test method GB1040-92, the sample size is 150mm x 10mm x 4mm dumbbell standard sample strip;
impact strength/KJ/m of simply supported beam2GB/T1043-93, sample size 80mm x 10mm x 4mm with gap, normal temperature;
testing light transmittance by a fluorescence spectrophotometer, wherein the sample thickness is 2mm, and the incident light wavelength is visible
The light wavelength range is 360nm-780 nm;
and (3) antibacterial property detection, namely, injection molding the composite material into a test sample strip, and detecting according to the enterprise standard Q/02GZS001, wherein detection strains are escherichia coli and staphylococcus aureus in sequence.
As can be seen from the examples and the comparative examples, the material prepared by the multicomponent composition under the scheme has excellent tensile strength, impact strength and light transmittance, and also has certain antibacterial property.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
1. High transparent PP combined material for cosmetic pencil, its characterized in that: the composite material comprises the following components in parts by mass:
75-83 parts of transparent PP
3-5 parts of transparent PETG
LLDPE3-5 parts
6-8 parts of POE-g-GMA
0.2 to 0.5 portion of antioxidant
2-3 parts of nano metal oxide
0.2 to 0.3 portion of wetting agent
1-2 parts of a dispersant;
wetting agent is polyethylene glycol and sodium dodecyl sulfate;
the dispersing agents are BYK163 and BYK 161;
the nanometer metal oxide is nanometer cobalt oxide and nanometer zinc oxide;
the preparation method of the high-transparency PP composite material for the cosmetic pencil comprises the following steps
1) Uniformly mixing transparent PP, LLDPE, partial antioxidant, dispersant and POE-g-GMA for later use;
2) uniformly mixing transparent PETG, nano metal oxide, wetting agent, the rest POE-g-GMA, antioxidant and dispersing agent for later use;
3) uniformly mixing the materials to be used in the steps 1) and 2), and then putting the materials into a double-screw extruder for extrusion and granulation.
2. The highly transparent PP composite for cosmetic pencil according to claim 1, wherein: the antioxidant is hindered phenol antioxidant or phosphite antioxidant.
3. The highly transparent PP composite for cosmetic pencil according to claim 1, wherein: the surface of the nano metal oxide is modified by a coupling agent.
4. The highly transparent PP composite for cosmetic pencil according to claim 1, wherein: setting parameters of the double-screw extruder: the rotating speed of the screw is 110-120r/min, the feeding is 6.0-7.0r/min, the temperature of the feeding section is as follows: 140-: 170 ℃ and 175 ℃, temperature of the plasticizing section: 180 ℃ and 185 ℃; temperature of the exhaust section: 185 ℃ and 190 ℃; temperature of extrusion section: 190 ℃ and 195 ℃.
5. The highly transparent PP composite for cosmetic pencil according to claim 1, wherein: the nano metal oxide is soaked in the coupling agent solution for surface modification, and is mixed with other materials after being dried.
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| CN112778544B (en) | 2021-01-21 | 2021-12-03 | 江南大学 | Crosslinked hydrogel for muscle stem cell culture and preparation method and application thereof |
| CN114369344B (en) * | 2021-12-17 | 2023-10-03 | 上海金山锦湖日丽塑料有限公司 | High-transparency ultraviolet light blocking polyester material and preparation method thereof |
| CN114989578B (en) * | 2022-06-08 | 2024-09-10 | 宁波杰立化妆品包装用品有限公司 | Injection molding PET alloy material for cosmetic pencil body and preparation method thereof |
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| DE19515969A1 (en) * | 1995-05-02 | 1996-11-07 | Wolff Walsrode Ag | Highly transparent thermoformed film with a sealing layer based on polypropylene and linear low density polyethylene |
| KR101488784B1 (en) * | 2015-01-06 | 2015-02-11 | 호명화학공업 주식회사 | Heat shrinkable film for mothproof |
| CN107254101A (en) * | 2017-06-20 | 2017-10-17 | 苏州旭光聚合物有限公司 | Handle of automobile roof modified polypropene |
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| Title |
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| The effect of interfacial adhesion on the impact strength of immiscible PP/PETG blends compatibilized with triblock copolymers;Zhang, Xinlan;《POLYMER》;20090910;4737-4744 * |
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