CN106811723B - A kind of preparation method of automobile nano water-proof film - Google Patents
A kind of preparation method of automobile nano water-proof film Download PDFInfo
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- CN106811723B CN106811723B CN201511007740.9A CN201511007740A CN106811723B CN 106811723 B CN106811723 B CN 106811723B CN 201511007740 A CN201511007740 A CN 201511007740A CN 106811723 B CN106811723 B CN 106811723B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/12—Organic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
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Abstract
The present invention relates to automobile waterproof coating technique fields, and in particular to a kind of preparation method of automobile nano water-proof film, comprising the following steps: 1) cleans before carrying out plated film to automobile component to be coated, then dry；2) automobile component to be coated is put into vacuum film coating chamber, heats and vacuumized, sublimation temperature is 175-185 DEG C, evaporating pressure 25-40Pa；3) plated film raw material are put into vaporization chamber, continue to vacuumize, plated film raw material heating sublimation；4) it is connected to vaporization chamber and cracking room, plated film raw material sublimate into cracking room and are cracked into activated monomer, and cracking temperature is 670-680 DEG C, and cracking pressure is 8-10Pa；5) the characteristics of activated monomer enters vacuum film coating chamber, is finally deposited on automobile component film surface to be plated, obtains membrane waterproofing, and obtained nano water-proof film has waterproof performance good, and coating cost is low, good permeability.
Description
Technical field
The present invention relates to automobile waterproof coating technique fields, and in particular to a kind of preparation method of automobile nano water-proof film.
Background technique
Being comprising very more automobile components, especially part core component in automobile absolutely cannot be soaked, once it meets
It to water, is easy for damaging, or even will affect the security performance of vehicle.But automobile is typically all to park and walk in outdoor, rainwater
Weather long-term existence, this requires automobile waterproof performances with higher.
Existing automobile waterproof has following three kinds:
First is that sealant, the primary raw material that it is utilized is rubber, it has certain mechanical property, can play the effect of splash-proof
Fruit, but rubber compressive deformation, and airtight, heatproof, corrosion resistant.The method improved at present is that filler, reinforcing agent is added, and is reduced
Gum content reduces the flexible deformation of sizing material.But ventilative, acid and alkali-resistance etc. does not obtain ideal solution also.
Second is that plastic seal ring, primary raw material is polyethylene, polytetrafluoroethylene (PTFE), it has finer and close structure and structure strong
Degree, wall thickness can control than relatively thin.But plastic seal ring air permeability effect is bad, automobile component all needs to radiate, application
It is obstructed.
Third is that waterproof ventilated membrane, its primary raw material is hydrophobic material expanded PTFE EPTFE, have pressure-bearing,
The ventilative and lossless transaudient high performance water proof material being integrated, but EPTFE material expensive, and fluorine element be it is virose, lead
Cause market that can not promote.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, it is anti-that the purpose of the present invention is to provide a kind of automobile nanometers
The characteristics of preparation method of moisture film, obtained nano water-proof film have waterproof performance good, and coating cost is low, good permeability, nanometer
Waterproof membrane is non-toxic, is conducive to marketing application.
The purpose of the invention is achieved by the following technical solution:
A kind of preparation method of automobile nano water-proof film, comprising the following steps:
1) it cleans before carrying out plated film to automobile component to be coated, then dries；The present invention is using chemical gaseous phase
Sedimentation, monomer deposition are adsorbed in matrix surface, are deposited, polymerizeing, eventually forming pure, thickness uniformly and be able to maintain object shape
Waterproof membrane lower the influence of the impurity such as dust, greasy dirt, improve waterproof membrane it is desirable to assure that the cleanliness of matrix surface
Effect.Automobile component after cleaning needs to dry, and removes residual moisture, improves the densification effects of waterproof membrane.
Filming equipment used in the present invention includes sequentially connected vaporization chamber, cracking room and vacuum film coating chamber, is also wrapped
Cracking valve, heating tube, cold pump and vacuum evacuation device are included, vacuum evacuation device includes to maintain pump and lobe pump.
2) automobile component to be coated is put into vacuum film coating chamber, heats and vacuumized, sublimation temperature 175-185
DEG C, evaporating pressure 25-40Pa；
3) plated film raw material are put into vaporization chamber, continue to vacuumize, plated film raw material heating sublimation；
4) it is connected to vaporization chamber and cracking room, plated film raw material sublimates into cracking room and are cracked into activated monomer, cracking temperature
It is 670-680 DEG C, cracking pressure is 8-10Pa；
5) activated monomer enters vacuum film coating chamber, is finally deposited on automobile component film surface to be plated, obtains membrane waterproofing.
Wherein, the cleaning in the step 1) uses cleaning agent by dehydrated alcohol and NY-120 gasoline according to volume ratio 1:
1 mixes.The subtle granule foreign such as dust or grease stain can all be remained on general automobile component panel to be coated, these
Impurity will affect the waterproof performance and persistence of waterproof membrane, it is therefore desirable to be cleaned using cleaning agent, the present invention uses volume
Than for 1:1 dehydrated alcohol and NY-120 gasoline mixing be used as cleaning agent, automobile component panel to be coated is wiped
Cleaning treatment can effectively remove grease stain and dust impurity, and the volatility of the cleaning agent is good, and noresidue is to be plated to automobile component
The component of panel will not generate damage.
Wherein, the drying temperature in the step 1) is 30-35 DEG C, drying time 20-25min.Drying temperature is excessively high,
Automobile component can be damaged, temperature is too low, then drying is not thorough, and drying rate is slow.Drying time is too low to improve coating cost,
Drying time is too short, then drying is not thorough, and cleaning agent is easy residual, and drying temperature of the invention and drying time can be mentioned effectively
High drying rate improves the effect of drying, noresidue impurity.
Wherein, the plated film raw material are Parylene type powder, and what it is by N powder, C powder and D powder is according to weight ratio
2:3:2 is mixed.
Parylene (Poly-p-xylene), synthetic fibre (Parylene) in trade name pa, is to pass through chemical vapour deposition technique
The general designation of the thin polymer film with poly- two methylenes penylene structure of preparation, it has extremely excellent electrical property, heat resistance, weather-proof
Property and chemical stability, mainly there is Parylene N(Parylene), Parylene C(poly) and
Parylene D(polydichloro-p-xylene) three kinds, abbreviation N powder, C powder and D powder of the present invention, the coating raw material powder that the present invention uses
The grain diameter of body is 30-70nm, and obtained waterproof membrane compactness is good.
The penetrating power of N powder (Parylene) is strong, effectively can form film, dielectric in various slots or pinholed surface
Constant is low, and coefficient of friction is extremely low, and lubricant effect is excellent.
C powder (poly) has excellent dielectric properties and physical mechanical property, has extremely low hydrone
With the penetrance of corrosive gas, deposition rate ratio N powder is fast, and corresponding penetrating power is lower than N powder.
D powder (polydichloro-p-xylene) has better material resources and electrical property at a higher temperature, while having preferably
Thermal stability deposits very fast with polymerization speed.
The working principle of plated film of the present invention is that solid paraxylene ring two-body heating sublimation is gaseous state under vacuum conditions
Ring two-body is cracked into movable monomer under gaseous state ring two-body high temperature, and activated monomer enters in vacuum film coating chamber, inhales in matrix surface
Attached, deposition, polymerization form pure, thickness uniformly and are able to maintain the protective film of object shape.It can be applied to the table of any shape
Face coating, including can deposit membrane at any position of product inside sharp corner angle, slot and in imperceptible vacuum
Compactness film that is thick uniform and not generating dead angle.
The mode that the present invention uses the mixed proportion of N powder, C powder and D powder to compound for (weight ratio) 2:3:2 is to automobile component
Waterproof membrane is plated, the compactness of film is good, and good water-proof effect, good permeability, thermal stability is strong, and waterproofing grade can reach international highest
Standard: IPX8.
Wherein, the sublimation temperature in the step 3) is 175 DEG C -180 DEG C, evaporating pressure 25-30Pa.The core of plated film
Reaction be it is solid to toluene ring two-body heating sublimation at gaseous to toluene ring two-body, then crack, 2 methylene-Asias
The fracture of methyl key, generates the active monomer with free radical, and monomer joins end to end, intercouples, and forms the centre for having free radical
Body, intermediate polymerize again grows up, and forms the high-polymer molecule.The temperature of distillation is higher, faster, the vacuum film coating chamber of coating raw material gasification
Interior monomer molecule concentration is higher, and deposition polymerization is faster, but sublimation temperature is higher, and activated monomer molecular kinetic energy is higher, relative to compared with
The molecule of low kinetic energy, these high-energy molecules have significant proportion to diffuse in cold-trap, without being deposited on the higher matrix of temperature,
Cause raw material availability low.It is more than rate of cleavage if the rate of distillation is excessively high, part ring two-body gaseous molecular has little time to crack
Expansion chamber is entered, matrix surface, the porous polymer that the degree of polymerization easy to form is lower, performance is poor are deposited directly to.
The deposition rate of monomer molecule can improve with the increase of pressure, but hypertonia, then deposit it is too fast, molecule at
Length is not fast enough, it may appear that misty film, compactness is insufficient, therefore the temperature and pressure evaporated needs a good balance,
It can obtain that compactness is good, the high waterproof membrane of raw material utilization rate.
Wherein, the cracking temperature in the step 4) is 670-675 DEG C, and cracking pressure is 9-10Pa.As previously described, such as
The rate of fruit cracking does not catch up with the rate of distillation, then the waterproof membrane compactness obtained is poor, and waterproof effect is bad, cracking of the invention
Temperature and pressure and above-mentioned evaporating temperature and pressure cooperate, and influence each other, obtain automobile component waterproof of the invention
The waterproof effect of film is excellent, and the utilization rate of raw material is high.
Wherein, the substrate temperature of the plated film in the step 5) is 25 DEG C -30 DEG C, and plated film chamber pressure is 8-8.5Pa.Pass through
The study found that the growth rate of waterproof membrane quickly increases, the speed of growth of the pressure to film with the reduction of substrate temperature
There is large effect, therefore the surface temperature selection of automobile component of the invention, at 25 DEG C -30 DEG C, plated film chamber pressure is 8-
8.5Pa, the deposition for being more conducive to waterproof membrane are formed, and the usage amount of raw material is reduced, and reduce coating cost.
Wherein, the membrane waterproofing with a thickness of 25-30 μm.Waterproof is lepthymenia, then waterproof is ineffective, but waterproof membrane
It is blocked up, then it not only wastes raw material, and the surface roughness that will cause film increases, and can reduce the waterproof performance of waterproof membrane instead.
Wherein, cold pump is opened when the temperature of vaporization chamber reaches 150 DEG C in the step 2.Cold pump refers to cryogenic pump,
It is evacuated by condensing surface gas, is a kind of pumping equipment, is to obtain clean vacuum environment, this hair
The bright effect using cold pump is good, and vacuum environment is effectively regulated and controled, and improves the efficiency and effect of plated film.
Wherein, the temperature that cold pump before plated film raw material is put in the step 3) reaches -30 DEG C or less.Pass through control refrigeration pump
Temperature can be effectively controlled vacuum degree environment when putting plated film raw material, and this method is good to the control effect of integrated artistic.
The beneficial effects of the present invention are: the present invention plates automobile component using the plated film raw material of Nano grade
Film process, obtained waterproof membrane have the advantage that
1, vacuum-tightness is good, and film coats completely, without dead angle；
2, automobile component good water-proof effect can reach international highest standard: IPX8；
3, ageing-resistant, acid and alkali-resistance, nontoxic, insulation, low-friction coefficient；
4, it is suitble to the automobile component product of all kinds of internal structure complexity, plated film, not damaged to substrate at room temperature；
5, using solid macromolecule plated film, no organic exhaust gas discharge is environmentally protective.
6, raw material availability is high, and coating cost is low, promotes and applies and is easy.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of preparation method of automobile nano water-proof film, comprising the following steps:
1) it is cleaned before carrying out plated film to automobile component to be coated, using cleaning agent by dehydrated alcohol and NY-120 vapour
Oil is mixed according to volume ratio 1:1.Then it dries, drying temperature is 30 DEG C, drying time 20min.
2) automobile component to be coated is put into vacuum film coating chamber, the temperature of vaporization chamber opens cold pump when reaching 150 DEG C.
It heats and vacuumizes, sublimation temperature is 175 DEG C, evaporating pressure 25Pa；
3) plated film raw material are put into vaporization chamber, the temperature for putting cold pump before plated film raw material reaches -30 DEG C or less.The plating
Film raw material are Parylene type powder, by mixing according to weight ratio for 2:3:2 for N powder, C powder and D powder.
Continue to vacuumize, plated film raw material heating sublimation；Sublimation temperature is 175 DEG C, evaporating pressure 25Pa.
4) it is connected to vaporization chamber and cracking room, plated film raw material sublimates into cracking room and are cracked into activated monomer, cracking temperature
It is 670 DEG C, cracking pressure is 8Pa；
5) activated monomer enters vacuum film coating chamber, and the substrate temperature of plated film is 25 DEG C, and plated film chamber pressure is 8Pa.
Finally be deposited on automobile component film surface to be plated, obtain membrane waterproofing, membrane waterproofing with a thickness of 25 μm.
Embodiment 2
A kind of preparation method of automobile nano water-proof film, comprising the following steps:
1) it is cleaned before carrying out plated film to automobile component to be coated, using cleaning agent by dehydrated alcohol and NY-120 vapour
Oil is mixed according to volume ratio 1:1.Then it dries, drying temperature is 35 DEG C, drying time 25min.
2) automobile component to be coated is put into vacuum film coating chamber, the temperature of vaporization chamber opens cold pump when reaching 150 DEG C.
It heats and vacuumizes, sublimation temperature is 185 DEG C, evaporating pressure 40Pa.
3) plated film raw material are put into vaporization chamber, the temperature for putting cold pump before plated film raw material reaches -30 DEG C or less.The plating
Film raw material are Parylene type powder, by mixing according to weight ratio for 2:3:2 for N powder, C powder and D powder.Continue to take out
Vacuum, plated film raw material heating sublimation；Sublimation temperature is 180 DEG C, evaporating pressure 30Pa.
4) it is connected to vaporization chamber and cracking room, plated film raw material sublimates into cracking room and are cracked into activated monomer, cracking temperature
It is 675 DEG C, cracking pressure is 10Pa.
5) activated monomer enters vacuum film coating chamber, and the substrate temperature of plated film is 30 DEG C, and plated film chamber pressure is 8.5Pa.
Finally be deposited on automobile component film surface to be plated, obtain membrane waterproofing, membrane waterproofing with a thickness of 30 μm.
Embodiment 3
A kind of preparation method of automobile nano water-proof film, comprising the following steps:
1) it is cleaned before carrying out plated film to automobile component to be coated, using cleaning agent by dehydrated alcohol and NY-120 vapour
Oil is mixed according to volume ratio 1:1.Then it dries, drying temperature is 32 DEG C, drying time 22min.
2) automobile component to be coated is put into vacuum film coating chamber, the temperature of vaporization chamber opens cold pump when reaching 150 DEG C.
It heats and vacuumizes, sublimation temperature is 180 DEG C, evaporating pressure 30Pa；
3) plated film raw material are put into vaporization chamber, the temperature for putting cold pump before plated film raw material reaches -30 DEG C or less.The plating
Film raw material are Parylene type powder, by mixing according to weight ratio for 2:3:2 for N powder, C powder and D powder.
Continue to vacuumize, plated film raw material heating sublimation；Sublimation temperature is 177 DEG C, evaporating pressure 27Pa.
4) it is connected to vaporization chamber and cracking room, plated film raw material sublimates into cracking room and are cracked into activated monomer, cracking temperature
It is 675 DEG C, cracking pressure is 9Pa；
5) activated monomer enters vacuum film coating chamber, and the substrate temperature of plated film is 27 DEG C, and plated film chamber pressure is 8.2Pa.
Finally be deposited on automobile component film surface to be plated, obtain membrane waterproofing, membrane waterproofing with a thickness of 27 μm.
Embodiment 4
A kind of preparation method of automobile nano water-proof film, comprising the following steps:
1) it is cleaned before carrying out plated film to automobile component to be coated, using cleaning agent by dehydrated alcohol and NY-120 vapour
Oil is mixed according to volume ratio 1:1.Then it dries, drying temperature is 34 DEG C, drying time 24min.
2) automobile component to be coated is put into vacuum film coating chamber, the temperature of vaporization chamber opens cold pump when reaching 150 DEG C.
It heats and vacuumizes, sublimation temperature is 182 DEG C, evaporating pressure 35Pa；
3) plated film raw material are put into vaporization chamber, the temperature for putting cold pump before plated film raw material reaches -30 DEG C or less.The plating
Film raw material are Parylene type powder, by mixing according to weight ratio for 2:3:2 for N powder, C powder and D powder.
Continue to vacuumize, plated film raw material heating sublimation；Sublimation temperature is 178 DEG C, evaporating pressure 29Pa.
4) it is connected to vaporization chamber and cracking room, plated film raw material sublimates into cracking room and are cracked into activated monomer, cracking temperature
It is 675 DEG C, cracking pressure is 9Pa；
5) activated monomer enters vacuum film coating chamber, and the substrate temperature of plated film is 29 DEG C, and plated film chamber pressure is 8.4Pa.
Finally be deposited on automobile component film surface to be plated, obtain membrane waterproofing, membrane waterproofing with a thickness of 29 μm.
Embodiment 5
A kind of preparation method of automobile nano water-proof film, comprising the following steps:
1) it is cleaned before carrying out plated film to automobile component to be coated, using cleaning agent by dehydrated alcohol and NY-120 vapour
Oil is mixed according to volume ratio 1:1.Then it dries, drying temperature is 30 DEG C, drying time 25min.
2) automobile component to be coated is put into vacuum film coating chamber, the temperature of vaporization chamber opens cold pump when reaching 150 DEG C.
It heats and vacuumizes, sublimation temperature is 175 DEG C, evaporating pressure 40Pa；
3) plated film raw material are put into vaporization chamber, the temperature for putting cold pump before plated film raw material reaches -30 DEG C or less.The plating
Film raw material are Parylene type powder, by mixing according to weight ratio for 2:3:2 for N powder, C powder and D powder.
Continue to vacuumize, plated film raw material heating sublimation；Sublimation temperature is 180 DEG C, evaporating pressure 25Pa.
4) it is connected to vaporization chamber and cracking room, plated film raw material sublimates into cracking room and are cracked into activated monomer, cracking temperature
It is 680 DEG C, cracking pressure is 8Pa；
5) activated monomer enters vacuum film coating chamber, and the substrate temperature of plated film is 30 DEG C, and plated film chamber pressure is 8Pa.
Finally be deposited on automobile component film surface to be plated, obtain membrane waterproofing, membrane waterproofing with a thickness of 25 μm.
Embodiment 6
A kind of preparation method of automobile nano water-proof film, comprising the following steps:
1) it is cleaned before carrying out plated film to automobile component to be coated, using cleaning agent by dehydrated alcohol and NY-120 vapour
Oil is mixed according to volume ratio 1:1.Then it dries, drying temperature is 35 DEG C, drying time 20min.
2) automobile component to be coated is put into vacuum film coating chamber, the temperature of vaporization chamber opens cold pump when reaching 150 DEG C.
It heats and vacuumizes, sublimation temperature is 185 DEG C, evaporating pressure 25Pa；
3) plated film raw material are put into vaporization chamber, the temperature for putting cold pump before plated film raw material reaches -30 DEG C or less.The plating
Film raw material are Parylene type powder, by mixing according to weight ratio for 2:3:2 for N powder, C powder and D powder.
Continue to vacuumize, plated film raw material heating sublimation；Sublimation temperature is 180 DEG C, evaporating pressure 25Pa.
4) it is connected to vaporization chamber and cracking room, plated film raw material sublimates into cracking room and are cracked into activated monomer, cracking temperature
It is 670 DEG C, cracking pressure is 10Pa；
5) activated monomer enters vacuum film coating chamber, and the substrate temperature of plated film is 25 DEG C -30 DEG C, and plated film chamber pressure is 8.5Pa.
Finally be deposited on automobile component film surface to be plated, obtain membrane waterproofing, membrane waterproofing with a thickness of 25 μm.
Waterproof membrane obtained by embodiment 1-6 is subjected to following performance test:
1, waterproof test, using PX waterproofing grade standard testing.
2, heat stability testing automobile component coated product is placed under heating device be heated up to 250 DEG C it is lasting when
Between, whether observation membrane waterproofing can bubble.
3, automobile component coated product is placed in specific chamber by neutral acid mist test, will contain (5 scholar 0.5) %
Sodium chloride, the salt water that pH value is 6.5~7.2 are sprayed by spraying device, and salt fog is allowed to be deposited to the production of automobile component plated film
On product, surface occurs to corrode the time experienced.The temperature requirement of chamber is greater than 95% in (35 ± 2) DEG C, humidity, drops mist
Amount is 1~2mL/ (hcm2), nozzle exit pressure is 78.5~137.3kPa (0.8~1.4kgf/cm2)。
4, automobile component coated product is soaked in the potassium sulfide solution that mass concentration is 10% by potassium sulfide corrosion test
In, observation waterproof film surface time experienced when being corroded.
5, automobile component coated product is soaked in the potassium sulfide solution that mass concentration is 10% by vulcanized sodium corrosion test
In, observation waterproof film surface time experienced when being corroded.
The performance test results table of the obtained automobile component nano water-proof film of 1 embodiment 1-6 of table
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Waterproof test (IPX waterproofing grade standard) | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Heat stability testing (h) | > 72 | > 72 | > 72 | > 72 | > 72 | > 72 | > 72 |
| Neutral acid mist tests (h) | 85 | 82 | 83 | 83 | 85 | 82 | 83 |
| Potassium sulfide corrosion test (min) | 60 | 65 | 67 | 68 | 66 | 69 | 68 |
| Vulcanized sodium corrosion test (min) | 70 | 80 | 68 | 75 | 79 | 74 | 70 |
As can be seen that the waterproofness of the obtained automobile component nano water-proof film of the present invention from above-mentioned performance test
Can be good, thermal stability is good, and anticorrosion effect is good, excellent combination property.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (7)
1. a kind of preparation method of automobile nano water-proof film, it is characterised in that: the following steps are included:
1) it cleans before carrying out plated film to automobile component to be coated, then dries；
2) automobile component to be coated is put into vacuum film coating chamber, heats and vacuumized, sublimation temperature is 175-185 DEG C, is steamed
Hair pressure is 25-40Pa；
3) plated film raw material are put into vaporization chamber, continue to vacuumize, plated film raw material heating sublimation；
4) it is connected to vaporization chamber and cracking room, plated film raw material sublimates into cracking room and are cracked into activated monomer, cracking temperature is
670-680 DEG C, cracking pressure is 8-10Pa；
5) activated monomer enters vacuum film coating chamber, is finally deposited on automobile component film surface to be plated, obtains membrane waterproofing；
The plated film raw material be Parylene type powder, by N powder, C powder and D powder according to weight ratio be 2:3:2 mix
It forms, the grain diameter of plated film raw material powder is 30-70nm.
2. a kind of preparation method of automobile nano water-proof film according to claim 1, it is characterised in that: in the step 1)
Cleaning mixed by dehydrated alcohol and NY-120 gasoline according to volume ratio 1:1 using cleaning agent.
3. a kind of preparation method of automobile nano water-proof film according to claim 1, it is characterised in that: in the step 1)
Drying temperature be 30-35 DEG C, drying time 20-25min.
4. a kind of preparation method of automobile nano water-proof film according to claim 1, it is characterised in that: in the step 3)
Sublimation temperature be 175 DEG C -180 DEG C, evaporating pressure 25-30Pa.
5. a kind of preparation method of automobile nano water-proof film according to claim 1, it is characterised in that: in the step 4)
Cracking temperature be 670-675 DEG C, cracking pressure be 9-10Pa.
6. a kind of preparation method of automobile nano water-proof film according to claim 1, it is characterised in that: in the step 5)
Plated film automobile component surface temperature be 25 DEG C -30 DEG C, plated film chamber pressure be 8-8.5Pa.
7. a kind of preparation method of automobile nano water-proof film according to claim 1, it is characterised in that: the membrane waterproofing
With a thickness of 25-30 μm.
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| CN102115876A (en) * | 2009-12-31 | 2011-07-06 | 财团法人工业技术研究院 | Chemical vapor deposition device and method for forming poly-p-xylylene film |
| CN203569184U (en) * | 2013-09-30 | 2014-04-30 | 侯光辉 | Composite poly-p-xylene water-proof film deposition device |
| CN103834918A (en) * | 2012-11-21 | 2014-06-04 | 东莞劲胜精密组件股份有限公司 | Preparation method of nano coating whole machine waterproof |
| CN203960318U (en) * | 2014-06-26 | 2014-11-26 | 广东易能纳米科技有限公司 | A kind of equipment of Vacuum Deposition combined type polyphenylene ethyl functional membrane |
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2015
- 2015-12-29 CN CN201511007740.9A patent/CN106811723B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603170A (en) * | 2009-07-21 | 2009-12-16 | 黄益新 | A kind of method that is coated with poly-to the dimethyl benzene film on the led chip surface |
| CN102115876A (en) * | 2009-12-31 | 2011-07-06 | 财团法人工业技术研究院 | Chemical vapor deposition device and method for forming poly-p-xylylene film |
| CN103834918A (en) * | 2012-11-21 | 2014-06-04 | 东莞劲胜精密组件股份有限公司 | Preparation method of nano coating whole machine waterproof |
| CN203569184U (en) * | 2013-09-30 | 2014-04-30 | 侯光辉 | Composite poly-p-xylene water-proof film deposition device |
| CN203960318U (en) * | 2014-06-26 | 2014-11-26 | 广东易能纳米科技有限公司 | A kind of equipment of Vacuum Deposition combined type polyphenylene ethyl functional membrane |
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