CN109135399A - A kind of waterproof mobile phone shell and preparation method thereof - Google Patents
A kind of waterproof mobile phone shell and preparation method thereof Download PDFInfo
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- CN109135399A CN109135399A CN201810606701.8A CN201810606701A CN109135399A CN 109135399 A CN109135399 A CN 109135399A CN 201810606701 A CN201810606701 A CN 201810606701A CN 109135399 A CN109135399 A CN 109135399A
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- mobile phone
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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
- 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
- C09D7/63—Additives non-macromolecular organic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
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Abstract
The present invention provides a kind of waterproof mobile phone shells and preparation method thereof, including shell, the shell includes upper front housing, side shell, lower front housing, top shell, bottom case, dorsal shield and the waterproof coating being sprayed at the surface of shell and gap, and the raw material for preparing the waterproof coating includes: solution, halogenated hydrocarbons, KARSTEDT catalyst and the trimethoxy silane of perfluoro alkane organic matter, perfluoro alkane solvent, sodium hydroxide or potassium hydroxide and water.Contact angle >=110 ° of the waterproof mobile phone shell that the present invention is prepared to water, with preferable waterproofness, grease resistance, wearability and acid-fast alkali-proof, after the mobile phone shell that the present invention is prepared on cell-phone cover matched with mobile phone shell of the present invention, waterproof experiment is passed through, its impermeability is 3MPa, keeps 3h ne-leakage.
Description
Technical field
The present invention relates to electronic device waterproof case technical fields, and in particular to a kind of waterproof mobile phone shell and its preparation side
Method.
Background technique
With advancing by leaps and bounds for being constantly progressive for human society, especially modern science and technology, people's lives have been be unable to do without respectively
The electronic product of kind various kinds, especially mobile phone, above arrive the old man of seventy or eighty years old, lower not make to burr child how old
It with mobile phone, especially young man, almost always carves and mobile phone is all taken into use, mobile phone can beat electricity in the mankind
It talks about, listen song or play game etc., function can be described as very powerful, but powerful mobile phone or other electronics produce function again
Product gently then remove maintenance once encountering water, and heavy then whole equipment scrapping will also result in weight other than property causes damages
Want the loss of file.As consumer electronics are gradually to miniaturization, the development of integrated, multifunction, mobile phone, computer, camera,
The waterproof quality of wearing electronic product occupies very important status.Therefore, develop one kind can resist water, sweat, carbonated drink,
The infringement of fruit juice, drinks etc., and the waterproof coating for not influencing the structure of product, appearance and feel is technology urgently to be resolved
Problem.
Summary of the invention
In order to solve deficiency present in above-mentioned technology, the present invention proposes a kind of waterproof mobile phone shell and preparation method thereof, mentions
The high waterproofness of mobile phone, grease resistance, wearability and acid-fast alkali-proof.
The present invention adopts the following technical scheme: a kind of waterproof mobile phone shell, including shell, the shell include upper front housing, side
Shell, lower front housing, top shell, bottom case, dorsal shield and the waterproof coating being sprayed at the surface of shell and gap are prepared described anti-
The raw material of water coating includes: solution, the halogen of perfluoro alkane organic matter, perfluoro alkane solvent, sodium hydroxide or potassium hydroxide and water
For hydrocarbon, KARSTEDT catalyst and trimethoxy silane.
Preferably, it is equipped with open mesh corresponding with earpiece among the upper front housing, the open mesh side is set
There is front camera hole, is equipped with above the open mesh apart from sensing hole；The side shell is equipped with volume key protective case and opens
Closing key protective case；The lower front housing middle, which is equipped with, touches protection key；The top shell is equipped with earphone jack；The bottom case
Middle is equipped with charging hole set and multiple speaker holes；Postposition video camera hole is equipped on the upside of the dorsal shield.
Preferably, the mobile phone shell shell is silica gel material preparation.
Preferably, the charging hole set includes charge port lid and charging hole, described charging port lid one end and the charging hole
Be equipped between one end can 180 ° of bendings connectors, the charging port lid other end is equipped with the cushion that buckles outward.
Preferably, the charging port lid is identical with the charging hole size, and the charging port lid can be incited somebody to action by the cushion
The charging hole covers completely.
Preferably, the seam when charging port lid covers the charging hole, between the charging port lid and the charging hole
Gap < 1mm.
Preferably, mesh diameter < 1mm of the open mesh, the speaker hole diameter≤1mm.
Preferably, the front camera hole, postposition video camera hole and the earphone jack≤3.5mm, it is described away from
Diameter≤1.5mm from sensing hole.
In addition, also providing a kind of preparation method of waterproof mobile phone shell, comprising the following steps:
(1) perfluoro alkane organic matter is added in the reaction vessel with stirring and heating function, starts blender,
And mixture solution is formed with the dissolution stirring of perfluoro alkane solvent；
(2) mixture solution obtained in step (1) is heated to 50-80 DEG C, then mass fraction is added thereto
For the sodium hydroxide or potassium hydroxide of 30%-70% and the solution of water, reaction 1-3h is sufficiently stirred；
(3) halogenated hydrocarbons is added dropwise in the mixture obtained after sufficiently reacting in step (2), reaction 0.5-2h is sufficiently stirred；
(4) mixture obtained after step (3) sufficiently reaction is passed through into revolving, it is saturating to obtain colorless viscous after filtration treatment
Bright liquid；
(5) under the operating environment of anhydrous and oxygen-free, the transparent liquid transfer of the colorless viscous that step (4) is obtained
Into the reaction vessel with agitating function, start blender, and it is molten that the perfluoro alkane is added into the reaction vessel
Agent is added KARSTEDT catalyst after stirring and dissolving thereto, trimethoxy silane is added dropwise after being sufficiently mixed, after being added dropwise
Continue to be stirred to react 3-6h, after completion of the reaction by revolving, then filtering is arrived after dilution with perfluoro alkane solvent
The solution of the waterproof coating；
(6) by the solution spraying for the waterproof coating being prepared in step (5) on the mobile phone shell surface and described
At the gap of mobile phone shell；
(7) mobile phone shell for the solution for being coated with the waterproof coating in step (6) is placed in 40-60 DEG C of baking oven and is toasted
10-20min is down to room temperature later, and the waterproof mobile phone shell can be obtained.
Preferably, the perfluoro alkane organic matter is the alkylol that perfluoroalkyl replaces, chemical structural formula are as follows:
CnF2n+1-CnH2nOH, wherein n >=5；The perfluoro alkane solvent is straight chain perfluoro alkane or cyclic annular perfluoro alkane；It is described halogenated
Hydrocarbon is allyl chloride or allyl bromide, bromoallylene or high allyl chlorine or high allyl bromine；The perfluoro alkane organic matter with it is described halogenated
The molar ratio of hydrocarbon, the trimethoxy silane and the KARSTEDT catalyst is 1:2-3:1.5-3:0.05-0.1.
Compared with prior art, the invention has the following advantages:
The present invention provides a kind of waterproof mobile phone shells and preparation method thereof, by preparing while having hydrophobic grouping and silicon
The waterproof coating solution spraying is made waterproof coating in mobile phone shell by the waterproof coating of oxygen groups in the mobile phone shell
Trimethoxy silicon substrate in effective component molecule can be reacted with silicone hydroxyl exposed on silicate material such as silica gel mobile phone shell,
Perfluoroalkyl is combined on molecular level on the surface of silica gel mobile phone shell so that silica gel mobile phone shell surface have compared with
Good waterproofness.The waterproof mobile phone shell being prepared has preferable waterproofness, grease resistance, resistance to contact angle >=110 ° of water
Mill property and acid-fast alkali-proof after the mobile phone shell that the present invention is prepared on cell-phone cover matched with mobile phone shell of the present invention, pass through
Waterproof experiment, impermeability 3MPa keep 3h ne-leakage.
Detailed description of the invention
Structural schematic diagram when Fig. 1 is waterproof mobile phone shell traverse provided by the invention；
Fig. 2 is structural schematic diagram when waterproof mobile phone shell provided by the invention is placed vertically；
Fig. 3 is the structure schematic diagram of waterproof mobile phone shell provided by the invention；
The structural schematic diagram of the charging hole set of the position Fig. 4 waterproof mobile phone shell provided by the invention.
Specific embodiment
In order to further explain the technical solution of the present invention, to carry out the present invention below by specific embodiment detailed
It illustrates.It should be noted that attached drawing is all made of very simplified form and using non-accurate ratio, only to convenient, apparent
The purpose of the ground aid illustration embodiment of the present invention.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of waterproof mobile phone shell, including shell, the shell include upper front housing 1,
Side shell 2, lower front housing 4, top shell 5, bottom case 3, dorsal shield 6 and the waterproof coating being sprayed at the surface of shell and gap, preparation
The raw material of the waterproof coating includes: perfluoro alkane organic matter, perfluoro alkane solvent, sodium hydroxide or potassium hydroxide and water
Solution, halogenated hydrocarbons, KARSTEDT catalyst and trimethoxy silane.
Open mesh 13 corresponding with earpiece is equipped among the upper front housing 1,13 side of open mesh is equipped with
Front camera hole 12 is equipped with above the open mesh 13 apart from sensing hole 11, and the mesh diameter of the open mesh 13 <
1mm, 32 diameters of the speaker hole≤1mm；The side shell 2 is equipped with volume key protective case 21 and switch key protective case 22,
Press the volume of the i.e. controllable mobile phone of the volume key protective case 21 and the switch key protective case 22 and the Push And Release of mobile phone
State；4 middle of lower front housing, which is equipped with, touches protection key 41；The top shell 5 is equipped with earphone jack 51；The bottom case 3 is just
Centre is equipped with charging hole set 31 and multiple speaker holes 32；Postposition video camera hole 61 is equipped on the upside of the dorsal shield 6；The mobile phone
Shell shell is prepared for silica gel material, and the surface of shell and gap coat waterproof coating.
The charging hole set 31 includes that charging port lid 311 and charging hole 312, described 311 one end of charging port lid are filled with described
Between electric hole one end be equipped with can 180 ° bending connectors 313, charging 311 other end of port lid equipped with buckle outward it is soft
Pad 314；The charging port lid 311 is identical with 312 size of charging hole, when it is not necessary that when charging, the charging port lid 311 can
The charging hole 312 is covered completely, while being fastened the charging hole 312 by the outside buckle of the cushion 314, when
When the charging port lid 311 covers the charging hole 312, the gap charged between port lid 311 and the charging hole 312 <
1mm；When charging is required, the charging port lid 311 is openable and overturns 180 ° on one side around the connector 313, there is no harm in
Hinder charging operations.
The front camera hole 12, postposition video camera hole 61 and the 51≤3.5mm of earphone jack, it is described away from
Diameter≤1.5mm from sensing hole 11；51 corresponding position of earphone jack is equipped with port lid one (being not drawn into figure), when being not necessarily to
When using earphone, the port lid one says that the earphone jack 51 covers, at this time one outer edge of port lid and the earphone jack
Gap < 1mm between inside edge can open the port lid one, headset plug is inserted into when needing using earphone
It uses；Shown front video hole 12 and postposition video camera hole 61 are respectively equipped with corresponding port lid two (being not drawn into figure),
When without using camera function, the port lid two covers the front video hole 12 and postposition video camera hole 61,
When needing using camera function, the port lid two can be opened and taken pictures, covered by the port lid two described preposition
Gap < the 1mm in video camera hole 12 and postposition video camera hole 61.
In addition, another embodiment additionally provides a kind of preparation method of waterproof mobile phone shell, comprising the following steps:
(1) perfluoro alkane organic matter is added in the reaction vessel with stirring and heating function, starts blender,
And mixture solution is formed with the dissolution stirring of perfluoro alkane solvent；
(2) mixture solution obtained in step (1) is heated to 50-80 DEG C, then mass fraction is added thereto
For the sodium hydroxide or potassium hydroxide of 30%-70% and the solution of water, reaction 1-3h, reacting phenomenon are as follows: have white is sufficiently stirred
Precipitating generates；
(3) halogenated hydrocarbons is added dropwise in the mixture obtained after sufficiently reacting in step (2), reaction 0.5-2h is sufficiently stirred,
Reacting phenomenon are as follows: white precipitate disappears, and generates with colorless and transparent sticky mass；
(4) mixture obtained after step (3) sufficiently reaction is obtained colorless and transparent viscous by rotating after filtration treatment
Thick liquid；
(5) under the operating environment of anhydrous and oxygen-free, the transparent liquid transfer of the colorless viscous that step (4) is obtained
Into the reaction vessel with agitating function, start blender, and it is molten that the perfluoro alkane is added into the reaction vessel
Agent is added KARSTEDT catalyst after stirring and dissolving thereto, trimethoxy silane is added dropwise after being sufficiently mixed, after being added dropwise
Continue to be stirred to react 3-6h, after completion of the reaction by revolving, obtains the effective of the waterproof coating after the post-processings such as filtering
Chemical component, the active chemical of the waterproof coating diluted with perfluoro solvent after to get to the waterproof coating solution,
The active chemical of the waterproof coating has following chemical formula structure:
(6) by the solution spraying for the waterproof coating being prepared in step (5) on the mobile phone shell surface and described
At the gap of mobile phone shell；
(7) mobile phone shell for the solution for being coated with the waterproof coating in step (6) is placed in 40-60 DEG C of baking oven and is toasted
10-20min is down to room temperature later, and the waterproof mobile phone shell can be obtained, and the room temperature can be 18-38 DEG C.
The perfluoro alkane organic matter is the alkylol that perfluoroalkyl replaces, chemical structural formula are as follows: CnF2n+1-
CnH2nOH, wherein n is natural number, and n >=5；The perfluoro alkane solvent is straight chain perfluoro alkane or cyclic annular perfluoro alkane；Institute
Stating halogenated hydrocarbons is allyl chloride or allyl bromide, bromoallylene or high allyl chlorine or high allyl bromine；The perfluoro alkane organic matter and institute
The molar ratio for stating halogenated hydrocarbons, the trimethoxy silane and the KARSTEDT catalyst is 1:2-3:1.5-3:0.05-0.1.
Wherein, speed of agitator is 600-800r/min in each step.
The chemical reaction process figure for preparing the active chemical of the waterproof coating is as follows:
The water-proof mechanism of the waterproof coating is: the trimethoxy silicon substrate in the effective component molecule of the waterproof coating
It can be reacted with silicone hydroxyl exposed on silicate material such as silica gel mobile phone shell, enable perfluoroalkyl on molecular level
It is incorporated in the surface of silica gel mobile phone shell, so that silica gel mobile phone shell surface has preferable waterproofness.
The waterproof of shown waterproof mobile phone shell the reaction mechanism is as follows figure:
The waterproof coating that i.e. present invention is prepared has preferable waterproofness, grease resistance and wearability, the contact to water
Angle >=110 ° can apply on the electronic products such as silica gel mobile phone shell or cell phone screen glass, coat of the present invention anti-
The silica gel mobile phone shell or mobile phone glass screen of water coating, have passed through waterproof experiment, impermeability 3MPa, and be able to maintain 3h
Ne-leakage.
The use principle for the waterproof mobile phone shell that the present invention is prepared is as follows: will be in the matched hand of the waterproof mobile phone shell
Machine is inserted in the waterproof mobile phone shell, when needing using charge function and insertion ear-phone function, can open the charging hole
Lid 311 and the port lid one can be inserted into charging cable plug and headset plug；When mobile phone is without the use of charge function, insertion ear
When machine function and camera function, port lid one is covered into the earphone jack respectively, port lid two is covered into the front video hole
12, charging port lid 311 is covered into the charging hole 312；Protection key 41 or switch key protective case 22 can be pressed with hand to be beaten
Mobile phone is opened to operate with mobile phone；If when the port lid one covers the earphone jack 51, port lid two cover it is described preposition
Mobile phone when video camera hole 12 and postposition video camera hole 61, charging port lid 311 cover the charging hole 312 is accidentally fallen
Enter in water, take out mobile phone from being taken out after mobile phone or mobile phone impregnate 3h in water in water immediately, the mobile phone will not by into
The waterproof effect of water, the waterproof mobile phone shell is excellent.
Embodiment 2
On the basis of embodiment 1, under the premise of not changing the structure of the mobile phone shell, a kind of waterproof is proposed
The preparation method of coating, comprising the following steps:
(1) by perfluoro alkane organic matter: CnF2n+1-CnH2nOH, wherein 5≤n≤10, are added to stirring and heating function
In the reaction vessel of energy, start blender, forms mixture solution with perfluorocyclohexane dissolution stirring；
(2) mixture solution obtained in step (1) is heated to 50 DEG C, then mass fraction is added thereto and is
Reaction 1h is sufficiently stirred in 50% sodium hydroxide or potassium hydroxide and the solution of water；
(3) allyl chloride or allyl bromide, bromoallylene are added dropwise in the mixture obtained after sufficiently reacting in step (2), sufficiently stirs
Mix reaction 0.5h；
(4) mixture obtained after step (3) sufficiently reaction is obtained colorless and transparent viscous by rotating after filtration treatment
Thick liquid；
(5) under the operating environment of anhydrous and oxygen-free, the colorless and transparent thick liquid that step (4) is obtained is shifted
Into the reaction vessel with agitating function, start blender, and the perfluorocyclohexane is added into the reaction vessel,
KARSTEDT catalyst is added after stirring and dissolving thereto, trimethoxy silane is added dropwise after being sufficiently mixed, continues after being added dropwise
Be stirred to react 3h, after completion of the reaction by revolving, filtering, then with perfluorocyclohexane by dilution after to get arrive the waterproof
Coating solution；
(6) by the solution spraying for the waterproof coating being prepared in step (5) on the mobile phone shell surface and described
At the gap of mobile phone shell；
(7) mobile phone shell for being coated with the waterproof coating solution in step (6) is placed in 50 DEG C of baking oven and toasts 15min,
It is down to room temperature later, the waterproof mobile phone shell can be obtained.
The perfluoro alkane organic matter and the allyl chloride, the trimethoxy silane and the KARSTEDT catalyst
Molar ratio be 1:2:1.5:0.05.
The active chemical for the waterproof coating that the present embodiment 2 is prepared are as follows:
Embodiment 3
On the basis of embodiment 1, under the premise of not changing the structure of the mobile phone shell, a kind of waterproof coating is proposed
Preparation method, comprising the following steps:
(1) by perfluoro alkane organic matter: CnF2n+1-CnH2nOH, wherein 10 n≤20 <, are added to stirring and heating
In the reaction vessel of function, start blender, forms mixture solution with the dissolution stirring of perfluor pentane；
(2) mixture solution obtained in step (1) is heated to 65 DEG C, then mass fraction is added thereto and is
Reaction 2h is sufficiently stirred in 50% sodium hydroxide or potassium hydroxide and the solution of water；
(3) high allyl chlorine is added dropwise in the mixture obtained after sufficiently reacting in step (2), reaction 1h is sufficiently stirred；
(4) mixture obtained after step (3) sufficiently reaction is obtained colorless and transparent viscous by rotating after filtration treatment
Thick liquid；
(5) under the operating environment of anhydrous and oxygen-free, the colorless and transparent thick liquid that step (4) is obtained is shifted
Into the reaction vessel with agitating function, start blender, and the perfluorocyclohexane is added into the reaction vessel,
KARSTEDT catalyst is added after stirring and dissolving thereto, trimethoxy silane is added dropwise after being sufficiently mixed, continues after being added dropwise
It is stirred to react 4.5h, after completion of the reaction by revolving, filtering is then described anti-to get arriving after dilution with perfluorocyclohexane
Water coating solution.
(6) by the solution spraying for the waterproof coating being prepared in step (5) on the mobile phone shell surface and described
At the gap of mobile phone shell；
(7) mobile phone shell for being coated with the waterproof coating solution in step (6) is placed in 40 DEG C of baking oven and toasts 20min,
It is down to room temperature later, the waterproof mobile phone shell can be obtained.
The perfluoro alkane organic matter and the allyl chloride, the trimethoxy silane and the KARSTEDT are catalyzed
The molar ratio of agent is 1:2.5:2:0.08.
The active chemical for the waterproof coating that the present embodiment 3 is prepared are as follows:
Embodiment 4
On the basis of embodiment 1, under the premise of not changing the structure of the mobile phone shell, a kind of waterproof coating is proposed
Preparation method, comprising the following steps:
(1) by perfluoro alkane organic matter: CnF2n+1-CnH2nOH, wherein 20 < n, are added to stirring and heating function
Reaction vessel in, start blender, with perflexane dissolution stirring form mixture solution；
(2) mixture solution obtained in step (1) is heated to 80 DEG C, then mass fraction is added thereto and is
Reaction 3h is sufficiently stirred in 50% sodium hydroxide or potassium hydroxide and the solution of water；
(3) high allyl bromine is added dropwise in the mixture obtained after sufficiently reacting in step (2), reaction 2h is sufficiently stirred；
(4) mixture obtained after step (3) sufficiently reaction is obtained colorless and transparent viscous by rotating after filtration treatment
Thick liquid；
(5) under the operating environment of anhydrous and oxygen-free, the colorless and transparent thick liquid that step (4) is obtained is shifted
Into the reaction vessel with agitating function, starts blender, and the perflexane is added into the reaction vessel, stir
KARSTEDT catalyst is added thereto after mixing dissolution, trimethoxy silane is added dropwise after being sufficiently mixed, continues to stir after being added dropwise
Mix reaction 6h, after completion of the reaction by revolving, filtering, then with perflexane by dilution after to get arrive the waterproof coating
Solution.
(6) by the solution spraying for the waterproof coating being prepared in step (5) on the mobile phone shell surface and described
At the gap of mobile phone shell；
(7) mobile phone shell for being coated with the waterproof coating solution in step (6) is placed in 60 DEG C of baking oven and toasts 10min,
It is down to room temperature later, the waterproof mobile phone shell can be obtained.
The perfluoro alkane organic matter and the allyl bromide, bromoallylene, the trimethoxy silane and the KARSTEDT are catalyzed
The molar ratio of agent is 1:3:3:0.1.
The active chemical for the waterproof coating that the present embodiment 4 is prepared are as follows:
The waterproof coating solution spraying that embodiment 2-4 is prepared at the surface and gap of the mobile phone shell,
Wear test, concrete operations are carried out to the waterproof coating after drying are as follows: wear coating surface with No. 5 steel wool, be equivalent to
1kg/cm2Pressure wear coating surface, the wherein curved line relation at the water droplet angle of wearing- in period and the corresponding wear surface measured
Figure is as shown in Figure 5:
Wherein water droplet angle is i.e. to water contact angle, that is, the angle between water droplet and coating surface, can be obtained by the above chart
Out, there is preferable waterproofness by the waterproof mobile phone shell that the present invention is prepared, is worn up to by No. 5 steel wool
After 3000h, the waterproof coating surface is at all not affected by influence, and water droplet angle still keeps 110 °, that is, illustrates the waterproof coating
There is stronger waterproofness and wearability simultaneously.
Those skilled in the art will be clear that the scope of the present invention is not limited to example discussed above, it is possible to its into
Several changes of row and modification, the scope of the present invention limited without departing from the appended claims.Although own warp is in attached drawing and says
The present invention is illustrated and described in bright book in detail, but such illustrate and describe is only explanation or schematical, and not restrictive
's.The present invention is not limited to the disclosed embodiments.
Claims (10)
1. a kind of waterproof mobile phone shell, including shell, the shell includes upper front housing (1), side shell (2), lower front housing (4), top shell
(5), bottom case (3), waterproof coating dorsal shield (6) and be sprayed at the surface of shell and gap, which is characterized in that preparation institute
The raw material for stating waterproof coating includes: the molten of perfluoro alkane organic matter, perfluoro alkane solvent, sodium hydroxide or potassium hydroxide and water
Liquid, halogenated hydrocarbons, KARSTEDT catalyst and trimethoxy silane.
2. a kind of waterproof mobile phone shell according to claim 1, which is characterized in that upper front housing (1) centre is equipped with and hand
The corresponding open mesh of machine earpiece (13), open mesh (13) side are equipped with front camera hole (12), described netted to open
It is equipped with above mouth (13) apart from sensing hole (11)；The side shell (2) is equipped with volume key protective case (21) and switch key is protected
It covers (22)；Lower front housing (4) middle, which is equipped with, touches protection key (41)；The top shell (5) is equipped with earphone jack (51)；Institute
Bottom case (3) middle is stated equipped with charging hole set (31) and multiple speaker holes (32)；Postposition is equipped on the upside of the dorsal shield (6) to image
Machine hole (61).
3. a kind of waterproof mobile phone shell according to claim 1, which is characterized in that the mobile phone shell shell is silica gel material system
It is standby.
4. a kind of waterproof mobile phone shell according to claim 2, which is characterized in that the charging hole set (31) includes charging hole
(311) and charging hole (312) are covered, being equipped between the charging port lid (311) one end and described charging hole one end can 180 ° of bending
Connector (313), charging port lid (311) other end is equipped with the cushion (314) that buckles outward.
5. a kind of waterproof mobile phone shell according to claim 4, which is characterized in that the charging port lid (311) and described fill
Electric hole (312) size is identical, and the charging port lid (311) can be covered completely the charging hole (312) by the cushion (314)
Firmly.
6. a kind of waterproof mobile phone shell according to claim 5, which is characterized in that the charging port lid (311) covers described
Gap < 1mm when charging hole (312), between charging port lid (311) and the charging hole (312).
7. a kind of waterproof mobile phone shell according to claim 2, which is characterized in that the mesh diameter of the open mesh (13)
< 1mm, speaker hole (32) diameter≤1mm.
8. a kind of waterproof mobile phone shell according to claim 2, which is characterized in that the front camera hole (12), described
Postposition video camera hole (61) and the earphone jack (51)≤3.5mm, the diameter≤1.5mm apart from sensing hole (11).
9. a kind of preparation method of waterproof mobile phone shell according to claim 1-8, which is characterized in that including following
Step:
(1) perfluoro alkane organic matter is added in the reaction vessel with stirring and heating function, starts blender, and with entirely
The dissolution stirring of fluothane hydrocarbon solvent forms mixture solution；
(2) mixture solution obtained in step (1) is heated to 50-80 DEG C, then mass fraction is added thereto and is
Reaction 1-3h is sufficiently stirred in the sodium hydroxide or potassium hydroxide of 30%-70% and the solution of water；
(3) halogenated hydrocarbons is added dropwise in the mixture obtained after sufficiently reacting in step (2), reaction 0.5-2h is sufficiently stirred；
(4) mixture obtained after step (3) sufficiently reaction is obtained into the transparent liquid of colorless viscous after filtration treatment by rotating
Body；
(5) under the operating environment of anhydrous and oxygen-free, the transparent liquid of the colorless viscous that step (4) obtains, which is transferred to, to be had
In the reaction vessel of agitating function, start blender, and the perfluoro alkane solvent is added into the reaction vessel, stirs molten
KARSTEDT catalyst is added after solution thereto, trimethoxy silane is added dropwise after being sufficiently mixed, it is anti-to continue stirring after being added dropwise
3-6h is answered, after completion of the reaction by revolving, then filtering is applied with perfluoro alkane solvent after dilution to get to the waterproof
The solution of layer；
(6) by the solution spraying for the waterproof coating being prepared in step (5) in the mobile phone shell surface and the mobile phone
At the gap of shell；
(7) mobile phone shell for the solution for being coated with the waterproof coating in step (6) is placed in 40-60 DEG C of baking oven and toasts 10-
20min is down to room temperature later, and the waterproof mobile phone shell can be obtained.
10. a kind of preparation method according to claim 9, which is characterized in that the perfluoro alkane organic matter is perfluor alkane
The alkylol that base replaces, chemical structural formula are as follows: CnF2n+1-CnH2nOH, wherein n >=5；The perfluoro alkane solvent is that straight chain is complete
Fluothane hydrocarbon or cyclic annular perfluoro alkane；The halogenated hydrocarbons is allyl chloride or allyl bromide, bromoallylene or high allyl chlorine or high allyl bromine；
The molar ratio of the perfluoro alkane organic matter and the halogenated hydrocarbons, the trimethoxy silane and the KARSTEDT catalyst is
1:2-3:1.5-3:0.05-0.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN104804570A (en) * | 2014-01-24 | 2015-07-29 | 程威军 | Nanometer waterproof coating and preparation method thereof |
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Application publication date: 20190104 |