CN107298912A - A kind of preparation method of shell coating for electronic product - Google Patents
A kind of preparation method of shell coating for electronic product Download PDFInfo
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- CN107298912A CN107298912A CN201710540634.XA CN201710540634A CN107298912A CN 107298912 A CN107298912 A CN 107298912A CN 201710540634 A CN201710540634 A CN 201710540634A CN 107298912 A CN107298912 A CN 107298912A
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- electronic product
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- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- 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
- 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
-
- 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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
A kind of preparation method of shell coating for electronic product, including following preparation process:A, diatomite and silane coupler are mixed are ground, the nanoclay impurity in diatomite is removed by centrifugation, then carry out Wet-type super-fine disintegrating, add organic solvent and carry out high-speed stirred, dispersion liquid is made;B, by sodium alginate, chitosan and deionized water add reactor stirring obtain mixed liquor one, paraffin is added in mixed liquor one, mixed liquor two is obtained after heating stirring, then is added into mixed liquor two after calcium chloride water stirring, drying, pulverization process, obtain powder;C, dispersion liquid and powder mixed, it is well mixed to add surfactant, organic polymer water-absorbing resins and antibacterial mildew inhibitor, heating, stirred to liquid in thick.The preparation method of the present invention has the advantages that technique is simple, producing efficiency is high, cost is low.
Description
Technical field
The invention belongs to electronic product casing manufacture technology field, and in particular to a kind of shell coating for electronic product
Preparation method.
Background technology
The electronic product casing occurred in the market is generally realized using simple printed patterns or formation embossment
The decoration of case surface, with the improvement of living standards, people are when choosing electronic product, concern is not only electronic product
Function and quality, the main cause that people choose electronic product is also had become to the individual demand of electronic product.
With consumer electronics market Sustainable Growth, market competition is also more and more fierce, products-hardware configuration and software merit rating
Constantly upgrading also all tends to homogeneity.All big enterprises all make an issue of to attract clients on the shell of product, outside product
See and moulding is also more and more rich and varied, while the characteristic to sheathing material it is also proposed higher technical requirements.
Most of current electronic product casing uses plastic-injection, then passes through the methods such as ink printing and paint spraying again
Carry out decorative appearance, improve the quality of its outward appearance.Then for electronic product casing, the hardness of plastic cement easily goes out than relatively low
Existing cut, even if by painting enhancing surface, case hardness still dislikes not enough, have influence on to a certain degree the class of plastic shell and
Using.
Therefore, develop a kind of new electronic product casing coating with meet people individual demand turn into the urgent need to
The problem of solution.
The content of the invention
It is an object of the invention to provide painting prepared by a kind of preparation method of the shell coating for electronic product, the present invention
Expect that hardness is high, it is not easy to be scratched, enable in particular to realize more three-dimensional exterior design effect in surface of plastic product, and will not break
The special structure of bad plastic surface, ensures the tack of coating again, and preparation method of the invention has that technique is simple, producing efficiency
The low advantage of high, cost.
The invention provides following technical scheme:
A kind of preparation method of shell coating for electronic product, including following preparation process:
A, diatomite and silane coupler are mixed are ground, the nanoclay removed by centrifugation in diatomite is miscellaneous
Matter, then Wet-type super-fine disintegrating is carried out, add organic solvent and carry out high-speed stirred, Centrifugal dispersion is handled, and mixing speed is 2000-
3000r/min, is made dispersion liquid;
B, will sodium alginate, chitosan and deionized water add reactor in be warming up to 80-100 DEG C, be uniformly mixing to obtain mixing
Liquid one, phase transition temperature is added in mixed liquor one for 23 DEG C of paraffin, is mixed after being warming up to 120-150 DEG C of stirring 20min
Liquid two, then added into mixed liquor two after the calcium chloride water that concentration is 30-45%, stirring 2-3h, dried at 60-80 DEG C
To water content below 3%, pulverization process is carried out, powder of the particle diameter in 0.3-0.7mm is obtained;
C, dispersion liquid and powder mixed, add surfactant, organic polymer water-absorbing resins and antibacterial mildew inhibitor mixed
Close uniform, stirred under 50-65 DEG C of heating to liquid in thick, you can obtain finished product.
It is preferred that, the coating includes the raw material of following parts by weight:30-40 parts of diatomite, 22-27 parts of silane coupler,
14-17 parts of organic solvent, 13-18 parts of sodium alginate, 22-26 parts of chitosan, 18-29 parts of deionized water, 16-20 parts of paraffin, chlorine
Change 11-15 parts of the calcium aqueous solution, 13-24 parts of surfactant, 25-32 parts of organic polymer water-absorbing resins and antibacterial mildew inhibitor
12-15 parts.
It is preferred that, the silane coupler of the step a is to contain any of chloro, methoxyl group and ethyoxyl or a variety of
Silane coupler.
It is preferred that, the organic solvent of the step a is alcohols solvent.
It is preferred that, the alcohols solvent is isopropanol or absolute ethyl alcohol.
It is preferred that, the surfactant of the step c is cetyl trimethyl ammonia bromide.
It is preferred that, the organic polymer water-absorbing resins of the step c are sub- by acrylic acid, acrylamide and crosslinking agent N, N-
Bisacrylamide is formed through initiator potassium persulfate initiation reaction.
It is preferred that, the antibacterial mildew inhibitor of the step c is nano titanium oxide, nano zine oxide and negative ion antibiotic addition
Any of agent or a variety of mixing.
The beneficial effects of the invention are as follows:
Coating hardness prepared by the present invention is high, it is not easy to be scratched, and enables in particular to realize in surface of plastic product more three-dimensional outer
Pattern effect is seen, and the special structure of plastic surface will not be destroyed, ensures the tack of coating, preparation method tool of the invention again
Have the advantages that technique is simple, producing efficiency is high, cost is low.
The diatom ooze of the present invention has good workability and a plastic property, and diatom ooze has unique microstructure special
Levy, possess its unique function --- with extremely strong physical absorption performance and ion-exchange performance, it can also effectively remove sky
Free formaldehyde, benzene, ammonia in gas, alcohol harmful substance, it is natural inorganic raw material, is not burnt, and high temperature resistant is not produced during fire
Harmful vapors.
There is the organic polymer water-absorbing resins of the present invention moisture expantion, moisture releasing reduction, high water absorption, height to discharge water, Gao Zeng
Thick and water translocation performance, antibacterial mildew inhibitor of the invention is added in diatom ooze, it is both had conditioning performance, has again
There is fungus and mildew resistance, discharge anion, dispel pernicious gas, fresh air performance.
The shell coating of electronic product prepared by the present invention has production work efficiency high, economic and environment-friendly, reduces personnel and throws
Enter, cost-effective advantage, the appearance of the coating of formation is good, quality is high.
Embodiment
Embodiment 1
A kind of preparation method of shell coating for electronic product, including following preparation process:
A, diatomite and silane coupler are mixed are ground, the nanoclay removed by centrifugation in diatomite is miscellaneous
Matter, then Wet-type super-fine disintegrating is carried out, add organic solvent and carry out high-speed stirred, Centrifugal dispersion processing, mixing speed is
3000r/min, is made dispersion liquid;
B, will sodium alginate, chitosan and deionized water add reactor in be warming up to 80 DEG C, be uniformly mixing to obtain mixed liquor one,
Phase transition temperature is added in mixed liquor one for 23 DEG C of paraffin, is warming up to after 120 DEG C of stirring 20min and obtains mixed liquor two, then to
Add after the calcium chloride water that concentration is 35%, stirring 3h, dried at 60 DEG C to water content below 3% in mixed liquor two,
Pulverization process is carried out, powder of the particle diameter in 0.7mm is obtained;
C, dispersion liquid and powder mixed, add surfactant, organic polymer water-absorbing resins and antibacterial mildew inhibitor mixed
Close uniform, stirred under 65 DEG C of heating to liquid in thick, you can obtain finished product.
Coating includes the raw material of following parts by weight:40 parts of diatomite, 22 parts of silane coupler, 17 parts of organic solvent, marine alga
Sour 13 parts of sodium, 22 parts of chitosan, 18 parts of deionized water, 16 parts of paraffin, 15 parts of calcium chloride water, 13 parts of surfactant, have
15 parts of 25 parts of machine macromolecule water uptake resin and antibacterial mildew inhibitor.
Step a silane coupler is the silane coupler containing methoxyl group.
Step a organic solvent is alcohols solvent.
Alcohols solvent is isopropanol.
Step c surfactant is cetyl trimethyl ammonia bromide.
Step c organic polymer water-absorbing resins are by acrylic acid, acrylamide and crosslinking agent N, N- methylene bisacrylamide
Acid amides is formed through initiator potassium persulfate initiation reaction.
Step c antibacterial mildew inhibitor is the mixing of nano titanium oxide, nano zine oxide and negative ion antibiotic additive.
Embodiment 2
A kind of preparation method of shell coating for electronic product, including following preparation process:
A, diatomite and silane coupler are mixed are ground, the nanoclay removed by centrifugation in diatomite is miscellaneous
Matter, then Wet-type super-fine disintegrating is carried out, add organic solvent and carry out high-speed stirred, Centrifugal dispersion processing, mixing speed is
2000r/min, is made dispersion liquid;
B, will sodium alginate, chitosan and deionized water add reactor in be warming up to 100 DEG C, be uniformly mixing to obtain mixed liquor
One, phase transition temperature is added in mixed liquor one for 23 DEG C of paraffin, mixed liquor two is obtained after being warming up to 150 DEG C of stirring 20min, then
Into mixed liquor two add concentration be 45% calcium chloride water, stirring 3h after, dried at 60 DEG C to water content 3% with
Under, pulverization process is carried out, powder of the particle diameter in 0.5mm is obtained;
C, dispersion liquid and powder mixed, add surfactant, organic polymer water-absorbing resins and antibacterial mildew inhibitor mixed
Close uniform, stirred under 65 DEG C of heating to liquid in thick, you can obtain finished product.
Coating includes the raw material of following parts by weight:40 parts of diatomite, 27 parts of silane coupler, 17 parts of organic solvent, marine alga
Sour 18 parts of sodium, 26 parts of chitosan, 29 parts of deionized water, 20 parts of paraffin, 15 parts of calcium chloride water, 24 parts of surfactant, have
12 parts of 32 parts of machine macromolecule water uptake resin and antibacterial mildew inhibitor.
Step a silane coupler is the silane coupler containing ethyoxyl.
Step a organic solvent is alcohols solvent.
Alcohols solvent is absolute ethyl alcohol.
Step c surfactant is cetyl trimethyl ammonia bromide.
Step c organic polymer water-absorbing resins are by acrylic acid, acrylamide and crosslinking agent N, N- methylene bisacrylamide
Acid amides is formed through initiator potassium persulfate initiation reaction.
Step c antibacterial mildew inhibitor is the mixing of nano titanium oxide, nano zine oxide and negative ion antibiotic additive.
Embodiment 3
A kind of preparation method of shell coating for electronic product, including following preparation process:
A, diatomite and silane coupler are mixed are ground, the nanoclay removed by centrifugation in diatomite is miscellaneous
Matter, then Wet-type super-fine disintegrating is carried out, add organic solvent and carry out high-speed stirred, Centrifugal dispersion processing, mixing speed is
2000r/min, is made dispersion liquid;
B, will sodium alginate, chitosan and deionized water add reactor in be warming up to 80 DEG C, be uniformly mixing to obtain mixed liquor one,
Phase transition temperature is added in mixed liquor one for 23 DEG C of paraffin, is warming up to after 120 DEG C of stirring 20min and obtains mixed liquor two, then to
Add after the calcium chloride water that concentration is 30%, stirring 2h, dried at 60 DEG C to water content below 3% in mixed liquor two,
Pulverization process is carried out, powder of the particle diameter in 0.7mm is obtained;
C, dispersion liquid and powder mixed, add surfactant, organic polymer water-absorbing resins and antibacterial mildew inhibitor mixed
Close uniform, stirred under 50 DEG C of heating to liquid in thick, you can obtain finished product.
Coating includes the raw material of following parts by weight:30 parts of diatomite, 22 parts of silane coupler, 17 parts of organic solvent, marine alga
Sour 13 parts of sodium, 26 parts of chitosan, 18 parts of deionized water, 16 parts of paraffin, 15 parts of calcium chloride water, 13 parts of surfactant, have
12 parts of 32 parts of machine macromolecule water uptake resin and antibacterial mildew inhibitor.
Step a silane coupler is the silane coupler containing chloro.
Step a organic solvent is alcohols solvent.
Alcohols solvent is isopropanol.
Step c surfactant is cetyl trimethyl ammonia bromide.
Step c organic polymer water-absorbing resins are by acrylic acid, acrylamide and crosslinking agent N, N- methylene bisacrylamide
Acid amides is formed through initiator potassium persulfate initiation reaction.
Step c antibacterial mildew inhibitor is the mixing of nano titanium oxide, nano zine oxide and negative ion antibiotic additive.
Coating prepared by above example is respectively put into 80 DEG C of baking boxs, toasts 3min, is then placed in LJV oven
Solidified, case hardness test is obtained such as following table data for 8H (1000g counterweights):
Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
Case hardness(1000g counterweights) | 8H | 5H | 8H |
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to the foregoing embodiments
The present invention is described in detail, for those skilled in the art, it still can be to foregoing embodiments institute
The technical scheme of record is modified, or carries out equivalent substitution to which part technical characteristic.It is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. the preparation method of a kind of shell coating for electronic product, it is characterised in that including following preparation process:
A, diatomite and silane coupler are mixed are ground, the nanoclay removed by centrifugation in diatomite is miscellaneous
Matter, then Wet-type super-fine disintegrating is carried out, add organic solvent and carry out high-speed stirred, Centrifugal dispersion is handled, and mixing speed is 2000-
3000r/min, is made dispersion liquid;
B, will sodium alginate, chitosan and deionized water add reactor in be warming up to 80-100 DEG C, be uniformly mixing to obtain mixing
Liquid one, phase transition temperature is added in mixed liquor one for 23 DEG C of paraffin, is mixed after being warming up to 120-150 DEG C of stirring 20min
Liquid two, then added into mixed liquor two after the calcium chloride water that concentration is 30-45%, stirring 2-3h, dried at 60-80 DEG C
To water content below 3%, pulverization process is carried out, powder of the particle diameter in 0.3-0.7mm is obtained;
C, dispersion liquid and powder mixed, add surfactant, organic polymer water-absorbing resins and antibacterial mildew inhibitor mixed
Close uniform, stirred under 50-65 DEG C of heating to liquid in thick, you can obtain finished product.
2. the preparation method of a kind of shell coating for electronic product according to claim 1, it is characterised in that described
Coating includes the raw material of following parts by weight:30-40 parts of diatomite, 22-27 parts of silane coupler, 14-17 parts of organic solvent, marine alga
Sour sodium 13-18 parts, 22-26 parts of chitosan, 18-29 parts of deionized water, 16-20 parts of paraffin, 11-15 parts of calcium chloride water, table
12-15 parts of activating agent 13-24 parts of face, 25-32 parts of organic polymer water-absorbing resins and antibacterial mildew inhibitor.
3. the preparation method of a kind of shell coating for electronic product according to claim 1, it is characterised in that described
Step a silane coupler is to contain any of chloro, methoxyl group and ethyoxyl or a variety of silane couplers.
4. the preparation method of a kind of shell coating for electronic product according to claim 1, it is characterised in that described
Step a organic solvent is alcohols solvent.
5. the preparation method of a kind of shell coating for electronic product according to claim 4, it is characterised in that described
Alcohols solvent is isopropanol or absolute ethyl alcohol.
6. the preparation method of a kind of shell coating for electronic product according to claim 1, it is characterised in that described
Step c surfactant is cetyl trimethyl ammonia bromide.
7. the preparation method of a kind of shell coating for electronic product according to claim 1, it is characterised in that described
Step c organic polymer water-absorbing resins are by acrylic acid, acrylamide and crosslinking agent N,N methylene bis acrylamide through drawing
Hair agent potassium peroxydisulfate initiation reaction is formed.
8. the preparation method of a kind of shell coating for electronic product according to claim 1, it is characterised in that described
Step c antibacterial mildew inhibitor is any of nano titanium oxide, nano zine oxide and negative ion antibiotic additive or a variety of
Mixing.
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CN201710540634.XA CN107298912A (en) | 2017-07-05 | 2017-07-05 | A kind of preparation method of shell coating for electronic product |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112251081A (en) * | 2020-11-05 | 2021-01-22 | 深圳市恒和装饰设计工程有限公司 | Building energy-saving coating capable of preventing condensation water from condensation |
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CN103146264A (en) * | 2013-03-05 | 2013-06-12 | 北京国泰瑞华精藻硅特种材料有限公司 | Multifunctional diatom ooze |
CN103304831A (en) * | 2013-06-24 | 2013-09-18 | 地球卫士(天津)环保新材料有限公司 | Environment-friendly wallpaper with diatomite as substrate filler and coating slurry and preparation method |
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-
2017
- 2017-07-05 CN CN201710540634.XA patent/CN107298912A/en not_active Withdrawn
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---|---|---|---|---|
CN103146264A (en) * | 2013-03-05 | 2013-06-12 | 北京国泰瑞华精藻硅特种材料有限公司 | Multifunctional diatom ooze |
CN103304831A (en) * | 2013-06-24 | 2013-09-18 | 地球卫士(天津)环保新材料有限公司 | Environment-friendly wallpaper with diatomite as substrate filler and coating slurry and preparation method |
CN104973823A (en) * | 2014-04-14 | 2015-10-14 | 湖南法蓝雅涂料科技有限公司 | Glass-ceramic coating, preparation method thereof and use method thereof |
CN106497176A (en) * | 2016-10-14 | 2017-03-15 | 东莞劲胜精密组件股份有限公司 | A kind of electronic product casing coating, electronic product casing and preparation method thereof |
CN106554646A (en) * | 2016-11-16 | 2017-04-05 | 长白朝鲜族自治县北疆硅藻土新材料科技有限公司 | A kind of new damping antibacterial environment protection diatom ooze wall material and preparation method thereof |
Non-Patent Citations (2)
Title |
---|
何丽红等: "《硅烷偶联剂KH-570对硅藻土表面疏水改性研究》", 《现代化工》 * |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112251081A (en) * | 2020-11-05 | 2021-01-22 | 深圳市恒和装饰设计工程有限公司 | Building energy-saving coating capable of preventing condensation water from condensation |
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