CN116694181A - Preparation method of high-hardness water-based paint for surface of vacuum cup - Google Patents
Preparation method of high-hardness water-based paint for surface of vacuum cup Download PDFInfo
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- CN116694181A CN116694181A CN202310507165.7A CN202310507165A CN116694181A CN 116694181 A CN116694181 A CN 116694181A CN 202310507165 A CN202310507165 A CN 202310507165A CN 116694181 A CN116694181 A CN 116694181A
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- based paint
- coupling agent
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- silane coupling
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- 239000003973 paint Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 229910004298 SiO 2 Inorganic materials 0.000 claims abstract description 63
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 39
- 238000003756 stirring Methods 0.000 claims abstract description 37
- 239000011259 mixed solution Substances 0.000 claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 229960000583 acetic acid Drugs 0.000 claims abstract description 8
- 239000012362 glacial acetic acid Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 7
- 239000006185 dispersion Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- 239000004593 Epoxy Substances 0.000 claims description 8
- 239000002966 varnish Substances 0.000 claims description 8
- 238000010008 shearing Methods 0.000 claims description 7
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 7
- 238000005119 centrifugation Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims 1
- 239000007822 coupling agent Substances 0.000 claims 1
- 229910000077 silane Inorganic materials 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052681 coesite Inorganic materials 0.000 abstract description 3
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 3
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 3
- 229910052682 stishovite Inorganic materials 0.000 abstract description 3
- 229910052905 tridymite Inorganic materials 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 238000010979 pH adjustment Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention relates to the technical field of high-hardness water-based paint on the surface of a vacuum cup, and discloses a preparation method of the high-hardness water-based paint on the surface of the vacuum cup, which comprises the following steps: s1, preparing 40g of SiO2, and then adding the SiO2 into stirring equipment for stirring; s2, adding 3-4 drops of glacial acetic acid while stirring in the stirring process to regulate the pH value of SiO 2; s3, preparing a mixed solution of 2.5g of a silane coupling agent KH-560 and ethanol, slowly adding the mixed solution into stirring equipment, and then reacting at room temperature to obtain a mixed solution. The invention aims at nano SiO through a silane coupling agent KH-560 2 The prepared high-hardness water-based paint on the surface of the vacuum cup can greatly improve the hardness and scratch resistance of the water-based paint by modifying.
Description
Technical Field
The invention relates to the technical field of high-hardness water-based paint on the surface of a vacuum cup, in particular to a preparation method x for the high-hardness water-based paint on the surface of the vacuum cup.
Background
At present, the paint commonly used for the surface of the thermos cup is traditional organic paint, such as polyester, emulsion paint and the like, and the coating has the advantages of rich colors, convenient construction and the like, and gives the thermos cup a bright appearance and pattern.
However, the organic paint coating has low mechanical strength (low hardness) and poor adhesion to the thermos cup base material (generally 316L stainless steel),therefore, the surface coating is easy to scratch in the use process of the thermos cup, thereby influencing the appearance of the thermos cup 。
Disclosure of Invention
The invention provides a preparation method of a high-hardness water-based paint for the surface of a vacuum cup, which aims to solve the technical problem that the surface coating is easy to scratch so as to influence the appearance of the vacuum cup.
The invention is realized by adopting the following technical scheme: the preparation method of the high-hardness water-based paint for the surface of the vacuum cup comprises the following steps:
s1, preparing 40g of SiO 2 Then adding the mixture into stirring equipment for stirring;
s2, adding 3-4 drops of glacial acetic acid while stirring in the stirring process to obtain SiO 2 Adjusting the pH value;
s3, preparing a mixed solution of 2.5g of a silane coupling agent KH-560 and ethanol, slowly adding the mixed solution into stirring equipment, and then reacting in an environment of room temperature to obtain a mixed solution;
s4, performing four times of centrifugation/dispersion on the mixed solution to obtain the silane coupling agent KH-560 modified nano SiO 2 Particles;
s5, modifying the silane coupling agent KH-560 into nano SiO 2 Adding the particles into deionized water, and then performing ultrasonic dispersion to obtain silane coupling agent KH-560 modified nano SiO 2 An aqueous dispersion;
s6, modifying the silane coupling agent KH-560 by using a high-speed shearing machine to obtain the nano SiO 2 The aqueous dispersion and the aqueous epoxy varnish resin are blended according to a certain proportion;
s7, adding the curing agent component according to a certain proportion after the preparation, and then continuously mixing and stirring to obtain the high-hardness water-based paint on the surface of the vacuum cup after the preparation is finished.
As a further improvement of the scheme, the mass ratio of the silane coupling agent KH-560 to the ethanol is 1:10.
As a further improvement of the above scheme, the SiO 2 Is divided into three specifications, namely ST-C type SiO 2 ST-UP type SiO 2 And M-5 type SiO 2 。
As a further improvement of the above scheme, the time of the ultrasonic dispersion in the step S5 is 1h.
As a further improvement of the scheme, the ST-C type SiO 2 ST-UP type SiO 2 And M-5 type SiO 2 The particle size of the particles is 10-20 nm.
As a further improvement of the above scheme, the grafting amount of the silane coupling agent KH-560 is calculated by the following formula:
in the formula: m is m GPTMS Is the mass of the silane coupling agent KH-560;
m CA is modified nano SiO before TGA test 2 Is the mass of (3);
m RCS is residual nano SiO 2 Is the mass of (3);
P UCS is ungrafted SiO 2 Occupying SiO 2 Percent of total mass.
As a further improvement of the scheme, siO is treated by glacial acetic acid in the step S2 2 Adjusting pH value to make SiO 2 The pH value of (2) is reduced to 4-5.
As a further improvement of the above scheme, the blending is performed by a high-speed shearing machine in the step S6 for 30min at a speed of 1000rpm.
As a further improvement of the scheme, the mixing and stirring time in the step 7 is 10min.
As a further improvement of the above scheme, the room temperature reaction time in the step S3 is 5h.
Compared with the prior art, the invention has the beneficial effects that:
the invention uses silane coupling agent KH-560 to prepare nano SiO 2 The prepared high-hardness water-based paint on the surface of the vacuum cup can greatly improve the hardness and scratch resistance of the water-based paint by modifying.
Drawings
FIG. 1 shows various nano-SiO's according to the present invention 2 And a schematic of the amount versus coating properties;
FIG. 2 shows the nano SiO before and after modification according to the present invention 2 Is a schematic diagram of (a).
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
Example 1:
the preparation method of the high-hardness water-based paint for the surface of the vacuum cup comprises the following steps:
s1, preparing 40g of ST-C type SiO 2 Then adding the mixture into stirring equipment for stirring;
s2, adding 3-4 drops of glacial acetic acid while stirring in the stirring process to obtain SiO 2 pH adjustment is carried out to lead to SiO 2 The pH value of (2) is reduced to 4-5;
s3, preparing a mixed solution of 2.5g of a silane coupling agent KH-560 and ethanol (the mass ratio of the silane coupling agent KH-560 to the ethanol is 1:10), slowly adding the mixed solution into stirring equipment, and then reacting for 5 hours at room temperature to obtain a mixed solution;
s4, performing four times of centrifugation/dispersion on the mixed solution to obtain the silane coupling agent KH-560 modified nano SiO 2 Particles;
s5, modifying the silane coupling agent KH-560 into nano SiO 2 Adding the particles into deionized water, and then performing ultrasonic dispersion for 1h to obtain the silane coupling agent KH-560 modified nano SiO 2 An aqueous dispersion;
s6, modifying the silane coupling agent KH-560 by using a high-speed shearing machine to obtain the nano SiO 2 The aqueous dispersion and the aqueous epoxy varnish resin are mixed according to a certain proportion for 30min at the speed of 1000rpm;
and S7.30min, adding the curing agent component according to a certain proportion, and then continuously mixing and stirring for 10min to obtain the high-hardness water-based paint on the surface of the vacuum cup.
Example 2:
the preparation method of the high-hardness water-based paint for the surface of the vacuum cup comprises the following steps:
s1, preparing 40g of ST-UP type SiO 2 Then adding the mixture into stirring equipment for stirring;
s2, adding 3-4 drops of glacial acetic acid while stirring in the stirring process to obtain SiO 2 pH adjustment is carried out to lead to SiO 2 The pH value of (2) is reduced to 4-5;
s3, preparing a mixed solution of 2.5g of a silane coupling agent KH-560 and ethanol (the mass ratio of the silane coupling agent KH-560 to the ethanol is 1:10), slowly adding the mixed solution into stirring equipment, and then reacting for 5 hours at room temperature to obtain a mixed solution;
s4, performing four times of centrifugation/dispersion on the mixed solution to obtain the silane coupling agent KH-560 modified nano SiO 2 Particles;
s5, modifying the silane coupling agent KH-560 into nano SiO 2 Adding the particles into deionized water, and then performing ultrasonic dispersion for 1h to obtain the silane coupling agent KH-560 modified nano SiO 2 An aqueous dispersion;
s6, modifying the silane coupling agent KH-560 by using a high-speed shearing machine to obtain the nano SiO 2 The aqueous dispersion and the aqueous epoxy varnish resin are mixed according to a certain proportion for 30min at the speed of 1000rpm;
and S7.30min, adding the curing agent component according to a certain proportion, and then continuously mixing and stirring for 10min to obtain the high-hardness water-based paint on the surface of the vacuum cup.
Example 3:
the preparation method of the high-hardness water-based paint for the surface of the vacuum cup comprises the following steps:
s1, preparing 40g of M-5 type SiO 2 Then adding the mixture into stirring equipment for stirring;
s2, adding 3-4 drops of glacial acetic acid while stirring in the stirring process to obtain SiO 2 pH adjustment is carried out to lead to SiO 2 The pH value of (2) is reduced to 4-5;
s3, preparing a mixed solution of 2.5g of a silane coupling agent KH-560 and ethanol (the mass ratio of the silane coupling agent KH-560 to the ethanol is 1:10), slowly adding the mixed solution into stirring equipment, and then reacting for 5 hours at room temperature to obtain a mixed solution;
s4, performing four times of centrifugation/dispersion on the mixed solution to obtain the silane coupling agent KH-560 modified nano SiO 2 Particles;
s5, modifying the silane coupling agent KH-560 into nano SiO 2 Adding the particles into deionized water, and then performing ultrasonic dispersion for 1h to obtain the silane coupling agent KH-560 modified nano SiO 2 An aqueous dispersion;
s6, modifying the silane coupling agent KH-560 by using a high-speed shearing machine to obtain the nano SiO 2 The aqueous dispersion and the aqueous epoxy varnish resin are mixed according to a certain proportion for 30min at the speed of 1000rpm;
and S7.30min, adding the curing agent component according to a certain proportion, and then continuously mixing and stirring for 10min to obtain the high-hardness water-based paint on the surface of the vacuum cup.
Examples 1, 2 and 3 are the same except that different types of nano SiO2 are used.
As can be seen from FIG. 1, 3 kinds of nano SiO were added in the same amount 2 The reinforcing effect of (2) is different, when ST-UP is used, the scratch resistance of the coating is slowly increased, the SR1 value is not increased from 3N to 4.5N until the addition amount reaches 4%, the SR2 value is also increased, and the maximum is 600g, and when ST-C is used, the SR1 value and the SR2 value of the coating are increased along with SiO 2 The dosage of SiO increases rapidly 2 When the addition amount was 3%, the SR1 and SR2 values had reached 4.5N and 600g, respectively, but the SiO was further increased 2 The dosage is no longer increased, the SR1 value can reach 800g, thus the ST-C nano SiO can be seen 2 The scratch resistance of the waterborne epoxy varnish is obviously improved, and the M-5 type nano SiO 2 The reinforcing effect of the powder on the epoxy varnish is very similar to that of ST-C, so that the invention selects ST-C type SiO 2 。
As can be seen from FIG. 2, when unmodified nano SiO is used 2 The scratch resistance of the paint is slowly increased until the addition amount reaches 3%, the SR1 value is increased from 3N to 4.5N, the SR2 value is also increased to 800g at maximum, and when GPTMS modified nano SiO is used 2 When the coating is used, the SR1 value and the SR2 value of the coating are both obviously increased, and SiO 2 At an addition of 2%, SR1 and SR2 values have reached 4.5N and 800g, respectively, and with nano SiO 2 The content can finally increase to 6N and 900g, and the nano SiO 2 From this, it can be seen that the silane coupling agent KH-560 modified nano SiO was contained in an amount of 4% 2 The scratch resistance of the waterborne epoxy varnish is improved more obviously.
Because the surface is grafted with the silane coupling agent KH-560, siO 2 The phase can form strong chemical connection with the polymer network and increase the chemical crosslinking density of the polymer, thereby improving the strength and scratch resistance of the coating.
Therefore, the invention adopts the silane coupling agent KH-560 to modify SiO 2 The particles can obviously improve the hardness and scratch resistance of the high-hardness water-based paint on the surface of the vacuum cup.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (10)
1. The preparation method of the high-hardness water-based paint for the surface of the vacuum cup is characterized by comprising the following steps of:
s1, preparing 40g of SiO 2 Then adding the mixture into stirring equipment for stirring;
s2, adding 3-4 drops of glacial acetic acid while stirring in the stirring process to obtain SiO 2 Adjusting the pH value;
s3, preparing a mixed solution of 2.5g of a silane coupling agent KH-560 and ethanol, slowly adding the mixed solution into stirring equipment, and then reacting in an environment of room temperature to obtain a mixed solution;
s4, performing four times of centrifugation/dispersion on the mixed solution to obtain silane couplingNano SiO modified by coupling agent KH-560 2 Particles;
s5, modifying the silane coupling agent KH-560 into nano SiO 2 Adding the particles into deionized water, and then performing ultrasonic dispersion to obtain silane coupling agent KH-560 modified nano SiO 2 An aqueous dispersion;
s6, modifying the silane coupling agent KH-560 by using a high-speed shearing machine to obtain the nano SiO 2 The aqueous dispersion and the aqueous epoxy varnish resin are blended according to a certain proportion;
s7, adding the curing agent component according to a certain proportion after the preparation, and then continuously mixing and stirring to obtain the high-hardness water-based paint on the surface of the vacuum cup after the preparation is finished.
2. The preparation method of the high-hardness water-based paint for the surface of the vacuum cup as claimed in claim 1, wherein the mass ratio of the silane coupling agent KH-560 to the ethanol is 1:10.
3. The method for preparing the high-hardness water-based paint for the surface of the vacuum cup as claimed in claim 1, wherein the SiO 2 Is divided into three specifications, namely ST-C type SiO 2 ST-UP type SiO 2 And M-5 type SiO 2 。
4. The method for preparing a high hardness water based paint for thermos cup surface as claimed in claim 1, wherein the time of ultrasonic dispersion in the step S5 is 1h.
5. The method for preparing the high-hardness water-based paint for the surface of a vacuum cup as claimed in claim 1, wherein the ST-C type SiO 2 ST-UP type SiO 2 And M-5 type SiO 2 The particle size of the particles is 10-20 nm.
6. The method for preparing the high-hardness water-based paint for the surface of the vacuum cup as claimed in claim 1, wherein the grafting amount of the silane coupling agent KH-560 is calculated by the following formula:
in the formula: m is m GPTMS Is the mass of the silane coupling agent KH-560;
m CS is modified nano SiO before TGA test 2 Is the mass of (3);
m RCS is residual nano SiO 2 Is the mass of (3);
P UCS is ungrafted SiO 2 Occupying SiO 2 Percent of total mass.
7. The method for preparing a high hardness water based paint for thermos cup surface as claimed in claim 1, wherein in step S2, siO is coated with glacial acetic acid 2 Adjusting pH value to make SiO 2 The pH value of (2) is reduced to 4-5.
8. The method for preparing a high hardness aqueous coating for thermos cup surface according to claim 1, wherein the blending time in step S6 is 30min at 1000rpm by a high speed shearing machine.
9. The method for preparing the high-hardness water-based paint for the surface of the vacuum cup as claimed in claim 1, wherein the mixing and stirring time in the step 7 is 10min.
10. The method for preparing the high-hardness water-based paint for thermos cup surface according to claim 1, wherein the room temperature reaction time in the step S3 is 5h.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310507165.7A CN116694181A (en) | 2023-05-08 | 2023-05-08 | Preparation method of high-hardness water-based paint for surface of vacuum cup |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310507165.7A CN116694181A (en) | 2023-05-08 | 2023-05-08 | Preparation method of high-hardness water-based paint for surface of vacuum cup |
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| CN109777256A (en) * | 2019-01-15 | 2019-05-21 | 海安南京大学高新技术研究院 | A kind of preparation method of aqueous high rigidity anti-fingerprint coating |
| CN114292614A (en) * | 2022-03-02 | 2022-04-08 | 西陇科学股份有限公司 | Preparation method of modified silicon dioxide-epoxy resin composite slurry |
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2023
- 2023-05-08 CN CN202310507165.7A patent/CN116694181A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392142A (en) * | 2008-11-06 | 2009-03-25 | 同济大学 | Method for preparing environment-friendly type anti-corrosive and anti-fingerprint metal surface coating |
| CN107177282A (en) * | 2017-06-28 | 2017-09-19 | 浩力森涂料（上海）有限公司 | Organic inorganic hybridization water paint and preparation method thereof |
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