CN114874539A - Easy-to-clean polypropylene composite material and preparation method and application thereof - Google Patents
Easy-to-clean polypropylene composite material and preparation method and application thereof Download PDFInfo
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- CN114874539A CN114874539A CN202210333943.0A CN202210333943A CN114874539A CN 114874539 A CN114874539 A CN 114874539A CN 202210333943 A CN202210333943 A CN 202210333943A CN 114874539 A CN114874539 A CN 114874539A
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 74
- -1 polypropylene Polymers 0.000 title claims abstract description 73
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 73
- 239000002131 composite material Substances 0.000 title claims abstract description 63
- 230000003670 easy-to-clean Effects 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 36
- 239000011737 fluorine Substances 0.000 claims abstract description 36
- 229920001577 copolymer Polymers 0.000 claims abstract description 24
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 22
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- 229910000077 silane Inorganic materials 0.000 claims abstract description 22
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 21
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 20
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 13
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- 238000005469 granulation Methods 0.000 claims description 2
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical group CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011347 resin Substances 0.000 abstract description 24
- 229920005989 resin Polymers 0.000 abstract description 24
- 239000000463 material Substances 0.000 abstract description 19
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 abstract description 18
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 abstract description 15
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- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000356 contaminant Substances 0.000 abstract description 11
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- 238000004140 cleaning Methods 0.000 description 13
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- 230000000052 comparative effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
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- 239000000126 substance Substances 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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- 241000700605 Viruses Species 0.000 description 1
- URFLCXSTNZSALZ-UHFFFAOYSA-N [F].C(C(=C)C)(=O)O Chemical compound [F].C(C(=C)C)(=O)O URFLCXSTNZSALZ-UHFFFAOYSA-N 0.000 description 1
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- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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Images
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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
-
- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an easy-to-clean polypropylene composite material and a preparation method and application thereof, and belongs to the technical field of high polymer materials. The easy-to-clean polypropylene composite material comprises the following components in parts by weight: 75-95 parts of polypropylene resin; 2-6 parts of an organic silicon-fluorine-containing acrylate copolymer; 1-3 parts of rosin resin; 1-3 parts of graphene; 1-2 parts of nano titanium dioxide; 0.5-1 part of processing aid; the organic silicon-fluorine-containing acrylate copolymer is obtained by copolymerizing silane, fluorine-containing acrylic acid and an acrylate polymer; the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is (5-10): (10-20): (50-70). The easy-to-clean polypropylene composite material disclosed by the invention has high compactness, can prevent contaminants from entering the interior of the polypropylene composite material, and is easy to wipe the material clean.
Description
Technical Field
The invention relates to the technical field of high polymer materials, and particularly relates to an easy-to-clean polypropylene composite material and a preparation method and application thereof.
Background
Polypropylene, PP for short, is a colorless, odorless, nontoxic and semitransparent solid substance. As a general plastic, the polypropylene has the characteristics of high temperature resistance, corrosion resistance, no toxicity, no odor, easiness in processing and the like, and is widely applied to the field of manufacturing light-weight delivery vehicles, including automobile interior and exterior trim parts and the like.
The existing polypropylene composite material has poor antibacterial property and cleanness, bacteria are easily bred on the surface, and particularly after dirt is polluted at high temperature, the pollutant is easily diffused into the polypropylene composite material, so that the surface of the polypropylene composite material is difficult to clean.
The prior art discloses an easy-to-clean polypropylene material, which improves the hydrophobic effect of the material by adding three specific polypropylenes, can effectively prevent stains or dirt from being stained on the material, and ensures the cleanness of the material. However, when contaminants adhere to the surface of the material for a long time under high temperature conditions, the contaminants easily enter the interior of the polypropylene composite material, and it is difficult to wipe the material clean.
Disclosure of Invention
The invention aims to solve the technical problem that the existing polypropylene material is difficult to clean after being stained with pollutants for a long time, and provides an easy-to-clean polypropylene composite material.
Still another object of the present invention is to provide a method for preparing an easy-to-clean polypropylene composite material.
Another object of the present invention is to provide an easy-to-clean polypropylene composite material for use in the easy-to-clean field.
The above purpose of the invention is realized by the following technical scheme:
an easy-to-clean polypropylene composite material comprises the following components in parts by weight:
the organic silicon-fluorine-containing acrylate copolymer is obtained by copolymerizing silane, fluorine-containing acrylic acid and an acrylate polymer;
the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is (5-10): (10-20): (50-70).
Wherein, it is required to be noted that:
according to the easy-to-clean polypropylene composite material, the organosilicon-fluorine-containing acrylate copolymer rosin resin, the graphene, the nano titanium dioxide and other components are synergistic, so that the obtained easy-to-clean polypropylene composite material has high hydrophobic and oleophobic properties and compactness, can prevent contaminants from entering the interior of the polypropylene composite material, and is easy to wipe the material clean.
The action mechanism of each component of the easy-to-clean polypropylene composite material is as follows:
the organic silicon-fluorine-containing acrylate copolymer has the effect of improving the hydrophobic and oleophobic properties of the composite material, and silicon atoms, methyl groups and fluorine-containing side chains in the acrylate polymer extend outwards to occupy the interface between the polymer and air, so that the surface energy of the material is greatly reduced, and the hydrophobic and oleophobic properties are good, so that contaminants can be prevented from entering the interior of the polypropylene composite material, and the easy cleaning property of the polypropylene composite material is realized.
The excessive use amount of the organosilicon-fluorine-containing acrylate copolymer can obviously reduce the hydrophobic and oleophobic performances of the composite material.
The rosin resin has the effects of improving the surface activity of the composite material, penetrating into the surface of the material in the processing process, improving the combination of the organic silicon-fluorine-containing acrylate copolymer and the matrix in the amorphous region of the polypropylene and simultaneously improving the combination efficiency of the graphene and the nano titanium dioxide, so that the antibacterial property of the polypropylene composite material can be improved, and the antibacterial effect of the polypropylene composite material is favorably realized.
The rosin resin is excessively used, is concentrated on the surface of the material and is covered with other components, so that the easy cleaning performance of the composite material is obviously reduced.
The graphene is used for improving the contact efficiency of the nano titanium dioxide of the composite material, and more contact surfaces are increased through the activity of the rosin, so that the nano titanium dioxide can penetrate into the deep layer of the graphene material, and the continuous antibacterial property of the polypropylene composite material can be realized. Moreover, the graphene can also improve the surface activity of the system and enable other components to achieve a better dispersion effect.
Too much graphene can significantly reduce the antibacterial performance of the composite material.
The nano titanium dioxide can generate a photocatalytic reaction similar to photosynthesis under the irradiation of light to generate free hydroxyl and active oxygen with extremely strong oxidizing power, has a very strong photooxidation-reduction function, can oxidize and decompose various organic compounds and partial inorganic substances, can destroy cell membranes of bacteria and protein of immobilized viruses, can kill bacteria and decompose organic pollutants, and can decompose the organic pollutants into pollution-free water (H) 2 O) and carbon dioxide (CO) 2 ) Thereby having extremely strong sterilization, deodorization,Mildew proof, antifouling self-cleaning and air purifying functions.
The nanometer titanium dioxide can convert the contacted organic matters into carbon dioxide and water by utilizing oxygen molecules and water molecules in the air, does not change, but can promote substances of chemical reaction, has long validity period in theory and low maintenance cost.
The addition of excessive nano titanium dioxide can improve the antibacterial performance of the material, but increase the agglomeration of the nano titanium dioxide, reduce the easy cleaning performance of the material and obviously reduce the impact resistance of the material.
According to the invention, through the synergistic effect of the organic silicon-fluorine-containing acrylate, the rosin resin, the graphene and the nano titanium dioxide, the obtained easy-to-clean polypropylene composite material has high hydrophobic and oleophobic properties, and can prevent contaminants from entering the interior of the polypropylene composite material, so that the material is easy to clean.
Preferably, in order to further improve the easy-cleaning effect of the easy-cleaning polypropylene composite material, the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is (7-8): (13-16): (55-65).
Still more preferably, the mass ratio of silane, fluorine-containing acrylic acid and acrylate is 8: 15: 60.
preferably, in order to further enhance the easy-cleaning effect of the easy-cleaning polypropylene composite, the acrylate polymer is preferably polymerized from methyl methacrylate and/or butyl methacrylate.
Preferably, in order to further improve the easy-to-clean effect of the easy-to-clean polypropylene composite material, the purity of the graphene is more than or equal to 95%.
Preferably, the processing aid is a lubricant and/or an antioxidant.
Preferably, the lubricant is a stearate-based lubricant.
Preferably, the antioxidant is hindered phenol antioxidant and/or phosphite antioxidant
The invention also discloses a preparation method of the easy-to-clean polypropylene composite material, which comprises the following steps:
the components are uniformly mixed, and the polypropylene composite material easy to clean is obtained by melt extrusion, granulation and drying at the temperature of 200-230 ℃ through a double-screw extruder.
The easy-to-clean polypropylene composite material prepared by the invention has good easy-to-clean performance, can be widely applied to preparation of plastic products, and particularly protects the application of the easy-to-clean polypropylene composite material in the field of easy cleaning.
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses an easy-to-clean polypropylene composite material which is prepared from polypropylene resin, organic silicon-fluorine-containing acrylate copolymer, rosin resin, graphene, nano titanium dioxide and the like under the synergistic effect, has high hydrophobic and oleophobic properties and compactness, can prevent contaminants from entering the interior of the polypropylene composite material, and is easy to wipe the material clean.
Drawings
FIG. 1 is a schematic view of a contaminant drop point in easy-clean performance.
FIG. 2 is a structural formula of the organosilicon-fluorine-containing acrylate copolymer.
FIG. 3 is an initial state diagram of the sample plate in the easy-to-clean rating scale specification.
FIG. 4 shows the sample plate discoloration in the easy-to-clean rating scale specification as level 1.
FIG. 5 shows the sample plate discoloration in the easy-to-clean rating scale specification as level 2.
FIG. 6 shows the discoloration of the sample plate in the easy-to-clean rating scale of 3.
FIG. 7 shows the color change of the sample plate in the easy-to-clean rating scale of 4.
FIG. 8 shows the discoloration of the sample plate in the easy-to-clean rating scale of 5.
Detailed Description
The present invention will be further described with reference to specific embodiments, but the present invention is not limited to the examples in any way. The starting reagents employed in the examples of the present invention are, unless otherwise specified, those that are conventionally purchased.
The raw materials used in the invention are as follows:
the polypropylene resin is M2600R, manufacturer: shanghai petrochemical industry;
methyl methacrylate, manufacturer: the Jilin petrochemical industry;
fluorine-containing acrylic acid, manufacturer: shandong high borygmus;
silane WD-72, manufacturer: science and technology of satellite constant;
rosin resin is Foral105, manufacturer: pinova;
the graphene is graphene MG-GO-01, the purity is 95%, and the manufacturer Shanghai Dingguo is a Michelia amabilis;
nano titanium dioxide, brand MZT-A01, the manufacturer receives the new material very slightly;
the antioxidant is hindered phenol and phosphite ester, the weight ratio of the hindered phenol to the phosphite ester is 1:1, the antioxidant is commercially available, and the antioxidant is the same as that used in all the examples and comparative examples;
lubricants, stearates, are commercially available and are the same for all examples and comparative examples;
examples 1 to 5
An easy-to-clean polypropylene composite material comprises the following components in parts by weight:
a polypropylene resin; silicone-fluorine-containing acrylate copolymers; rosin resin; graphene; nano titanium dioxide; an antioxidant; a lubricant;
the organosilicon-fluorine-containing acrylate copolymer is obtained by copolymerizing silane, fluorine-containing acrylic acid and an acrylate polymer;
the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is 8: 15: 60.
the preparation method of the organic silicon-fluorine-containing acrylate copolymer comprises the following steps:
s1, adding methyl methacrylate and azodiisobutyronitrile with the total mass of 1.2% of the monomers into a xylene solution, heating to 65-80 ℃, and reacting for 1 h;
s2, dropwise adding silane and a dimethylbenzene solution containing fluorine methacrylic acid into S1, titrating for 30min, maintaining the temperature at 65-80 ℃, then reacting for 1h, and cooling to obtain the organic silicon-fluorine-containing acrylate copolymer.
Wherein the specific contents of the components are shown in the following table 1;
| 1 | 2 | 3 | 4 | 5 | |
| polypropylene resin | 91.3 | 86.5 | 79.3 | 86.3 | 81.3 |
| Organosilicon-fluorine-containing acrylate copolymer | 2 | 3 | 4 | 5 | 6 |
| |
1 | 2 | 3 | 1 | 2 |
| |
1 | 2 | 3 | 1 | 2 |
| Nano titanium dioxide | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| Antioxidant agent | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Calcium stearate | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
Table 1 the easy-to-clean polypropylene composite of each example was prepared as follows:
s1: putting polypropylene resin, organic silicon-fluorine-containing acrylate copolymer, graphene, calcium stearate, nano titanium dioxide and rosin resin into a ball mill for grinding, wherein the ground powder needs to be screened by a 200-mesh screen;
s2: grinding the mixture into powder, and stirring the powder for 30min at the speed of 1200r/min to obtain a mixture A;
s3: introducing the mixture A into a screw extruder for extrusion molding to obtain the polypropylene composite material easy to clean;
wherein the working temperature of the screw extruder is 230 ℃, the pressure is 25MPa,
the drying mode is air cooling, and the wind speed is controlled at 12 m/s.
Example 6
An easy-to-clean polypropylene composite material comprises the following components in parts by weight:
a polypropylene resin; silicone-fluorine-containing acrylate copolymers; rosin resin; graphene; nano titanium dioxide; an antioxidant; a lubricant;
the organosilicon-fluorine-containing acrylate copolymer is obtained by copolymerizing silane, fluorine-containing acrylic acid and an acrylate polymer;
the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is 5: 20: 70.
the rest is the same as embodiment 1, and the description is omitted here.
Example 7
An easy-to-clean polypropylene composite material comprises the following components in parts by weight:
a polypropylene resin; silicone-fluorine-containing acrylate copolymers; rosin resin; graphene; nano titanium dioxide; an antioxidant; a lubricant;
the organosilicon-fluorine-containing acrylate copolymer is obtained by copolymerizing silane, fluorine-containing acrylic acid and an acrylate polymer;
the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is 10: 10: 70.
the rest is the same as embodiment 1, and the description is omitted here.
Comparative examples 1 to 7
The polypropylene composite material comprises the following components in parts by weight as shown in the following table 2.
TABLE 2 comparative polypropylene composite compositions (in parts by weight)
The preparation method of the easy-to-clean polypropylene composite material is the same as that of the embodiment 1, and the detailed description is omitted.
Comparative example 8
The polypropylene composite material comprises the following components in parts by weight:
a polypropylene resin; silicone-fluorine-containing acrylate copolymers; rosin resin; graphene; nano titanium dioxide; an antioxidant; a lubricant;
the organosilicon-fluorine-containing acrylate copolymer is obtained by copolymerizing silane, fluorine-containing acrylic acid and an acrylate polymer;
the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is 8: 5: 70.
the rest is the same as embodiment 1, and the description is omitted here.
Comparative example 9
The polypropylene composite material comprises the following components in parts by weight:
a polypropylene resin; silicone-fluorine-containing acrylate copolymers; rosin resin; graphene; nano titanium dioxide; an antioxidant; a lubricant;
the organosilicon-fluorine-containing acrylate copolymer is obtained by copolymerizing silane, fluorine-containing acrylic acid and an acrylate polymer;
the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is 2: 11: 70.
the rest is the same as embodiment 1, and the description is omitted here.
Result detection
The polypropylene composites of the above examples and comparative examples were tested by the following performance test methods:
(1) antibacterial test the antibacterial properties were tested according to the method GB/T31402-2015.
(2) The easy-to-clean performance was evaluated as follows:
selecting common coffee for liquid pollutants, using a dropper to transfer the coffee from a height of 5cm from the surface of a test sample plate to the surface of the test sample plate of 10cm multiplied by 10cm, wherein 2 drops are respectively dropped at each position of 3 positions including the position 1, the position 2 and the position 3 shown in figure 1, two sample plates are required to be tested, one sample plate is placed in a 70 ℃ oven for 24h, then the sample plate is taken out and cooled to room temperature, then the easy cleaning is evaluated, and the other sample plate is placed at room temperature for 24 h.
Selecting tomato sauce as paste pollutant, and uniformly coating 0.1g of paste pollutant at 3 positions including No. 1, No. 2 and No. 3 with plastic spoon, wherein the diameter of each part is about 1 cm. And (3) treating the two templates, putting one of the two templates in an oven at 70 ℃ for 24h, taking out the samples, cooling the samples to room temperature, evaluating the cleanability, and putting the other sample at normal temperature for 24 h.
The cleaning method comprises the following steps: dry wiping and water wiping.
For spots on the test panel, respectively:
wiping the cotton cloth with clean fine cotton cloth back and forth for X times (grade is recorded as A-X), wherein X is less than or equal to 10;
wiping the cotton cloth with clean fine cotton cloth with water at medium force for X times (grade record is B-X), wherein X is less than or equal to 10;
after being treated by a corresponding cleaning mode, the positions (No. 4 positions) of the sample plate which are not polluted are compared, and the pollutant erasure and the sample plate color change conditions of all the positions of the sample plate are respectively evaluated.
Level 1: the contaminants tested were almost not removed;
and 2, stage: the contaminants tested were removed in small amounts, most of them were still present;
and 3, level: the tested pollutants are removed by more than 50 percent, and the polluted part is moderately discolored;
4, level: most pollutants in the test are removed, and the polluted part is slightly discolored;
and 5, stage: the contaminants tested were completely removed.
If the grade is 5, subsequent cleaning is not needed and the wiping times are recorded; and (4) testing three positions of each sample plate respectively to calculate an average value and recording a result, wherein the point 4 is a test comparison point.
(3) The method for testing the contact angle of water and oil comprises the following steps: the contact angle measuring instrument is used for testing, the equipment is Shanghai mass frequency, model CSDC-2000S, and the water contact angle testing liquid is as follows: pure water and paraffin oil as the oil contact angle test liquid. The specific operation method comprises the following steps: and opening the contact angle tester, controlling the amount of the dropping liquid to be within 1-5 microliters, and placing the sample on a sample table. The brightness of the light source needs to be adjusted according to the actual operation condition, the software is opened, then automatic liquid dropping is carried out, and finally the contact angle is read through equipment. The larger the water contact angle, the better the hydrophobic effect, and the larger the oil contact angle, the better the oleophobic effect.
The specific test results of the examples are shown in table 3 below:
the specific test results of each proportion are shown in the following table 4:
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The easy-to-clean polypropylene composite material is characterized by comprising the following components in parts by weight:
the organic silicon-fluorine-containing acrylate copolymer is obtained by copolymerizing silane, fluorine-containing acrylic acid and an acrylate polymer;
the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is (5-10): (10-20): (50-70).
2. The easy-to-clean polypropylene composite material as claimed in claim 1, wherein the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is (7-8): (13-16): (55-65).
3. The easy-to-clean polypropylene composite material of claim 2, wherein the mass ratio of the silane to the fluorine-containing acrylic acid to the acrylate is 8: 15: 60.
4. the easy-to-clean polypropylene composite of claim 1, wherein the acrylate polymer is polymerized from methyl methacrylate and/or butyl methacrylate.
5. The easy-to-clean polypropylene composite material of claim 1, wherein the purity of the graphene is not less than 95%.
6. The easy-to-clean polypropylene composite of claim 1, wherein the processing aid is a lubricant and/or an antioxidant.
7. The easy-to-clean polypropylene composite of claim 6, wherein the lubricant is a stearate-based lubricant.
8. The easy-to-clean polypropylene composite material of claim 6, wherein the antioxidant is a hindered phenol antioxidant and/or a phosphite antioxidant.
9. The preparation method of the easy-to-clean polypropylene composite material as claimed in any one of claims 1 to 8, which is characterized by comprising the following steps:
the components are uniformly mixed, and the polypropylene composite material easy to clean is obtained by melt extrusion, granulation and drying at the temperature of 200-230 ℃ through a double-screw extruder.
10. Use of the easy-to-clean polypropylene composite material according to any one of claims 1 to 8 in the field of easy-to-clean.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111440501A (en) * | 2020-05-14 | 2020-07-24 | 郑州知淘信息科技有限责任公司 | Organic silicon-fluorine modified acrylic resin powder coating and preparation method thereof |
| CN112778642A (en) * | 2020-12-31 | 2021-05-11 | 浙江佳华精化股份有限公司 | Easy-to-clean master batch and preparation method thereof |
| CN114213746A (en) * | 2021-12-20 | 2022-03-22 | 江苏尚艾新材料科技有限公司 | Oil-stain-resistant polypropylene material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111440501A (en) * | 2020-05-14 | 2020-07-24 | 郑州知淘信息科技有限责任公司 | Organic silicon-fluorine modified acrylic resin powder coating and preparation method thereof |
| CN112778642A (en) * | 2020-12-31 | 2021-05-11 | 浙江佳华精化股份有限公司 | Easy-to-clean master batch and preparation method thereof |
| CN114213746A (en) * | 2021-12-20 | 2022-03-22 | 江苏尚艾新材料科技有限公司 | Oil-stain-resistant polypropylene material and preparation method thereof |
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