CN203888319U - High-water vapor transmission rate coating film chip for automobile lamp - Google Patents
High-water vapor transmission rate coating film chip for automobile lamp Download PDFInfo
- Publication number
- CN203888319U CN203888319U CN201420294891.1U CN201420294891U CN203888319U CN 203888319 U CN203888319 U CN 203888319U CN 201420294891 U CN201420294891 U CN 201420294891U CN 203888319 U CN203888319 U CN 203888319U
- Authority
- CN
- China
- Prior art keywords
- automobile lamp
- transfer rate
- vapor transfer
- water vapor
- transmission rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 45
- 238000000576 coating method Methods 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 title abstract 6
- 238000012546 transfer Methods 0.000 claims description 39
- 239000012528 membrane Substances 0.000 claims description 23
- 239000010410 layer Substances 0.000 claims description 10
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 8
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 238000009833 condensation Methods 0.000 abstract description 13
- 230000005494 condensation Effects 0.000 abstract description 13
- 238000010521 absorption reaction Methods 0.000 abstract description 12
- 239000000428 dust Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 abstract 2
- 239000011487 hemp Substances 0.000 abstract 1
- 240000000797 Hibiscus cannabinus Species 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 238000000034 method Methods 0.000 description 10
- 239000003595 mist Substances 0.000 description 10
- 239000004814 polyurethane Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 229920002635 polyurethane Polymers 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000002045 lasting effect Effects 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012982 microporous membrane Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920001410 Microfiber Polymers 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002605 large molecules Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000003658 microfiber Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010112 shell-mould casting Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/30—Ventilation or drainage of lighting devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses a high-water vapor transmission rate coating film chip for an automobile lamp. The high-water vapor transmission rate coating film chip comprises a film carrier band and a high-water vapor transmission rate coating film, wherein the high-water vapor transmission rate coating film comprises an expanded polytetrafluoroethylene film layer and a hydrophilic group coating; the hydrophilic group coating is coated on the surface of one side of the expanded polytetrafluoroethylene film layer; and the hydrophilic group coating is in compounded connection with the film carrier band. According to the mode, the high-water vapor transmission rate coating film chip has good moisture absorption and guide performances, and a fogging condensation phenomenon does not occur in a shell of the automobile lamp, so that the illuminating performance of the automobile lamp is not influenced by a humid air environment, and a phenomenon that short circuit is caused because the surfaces of electrical and electronic components are subjected to dew formation is avoided. Permeation of rainwater and dust can be avoided, so that a pollution-free dust-tight level is achieved in the shell of the automobile lamp; and meanwhile, volatile matters generated by heating the plastic shell of the automobile lamp can be adsorbed by China-hemp stalk core superfine powder, and the light reflection performance is kept on the mirror surface of the automobile lamp.
Description
Technical field
The utility model relates to large vapor transfer rate coated film paster for a kind of automobile lamp.
Background technology
In prior art, the loose mist of bend pipe air-vent of European Union's automobile lamp goes condensation theoretical, inside there is sponge dustproof, also connecing air in lamp can go out greatly greatly with the variation of temperature in lamp, thereby realize faster loose mist in lamp and remove condensation, the car light that bend pipe is ventilative uses the interior laying dust of housing and electrical equipment corrosion in the near future.
The loose mist of U.S. Gore company goes condensation theoretical: car light be by lamp with lamp ventilative convection current outward, set up a kind of air pressure balance, in lamp, steam raises and discharges outside lamp with the temperature in lamp, and the ventilated membrane pasting method that on housing, usable floor area is larger is realized loose mist and removed condensation.Thereby reduce steam, the ambiguous phenomenon of lamp scattering of light is occurred, when car light is not worked, external environment condition humid air can not enter in housing.
The loose mist of Dong electrician company goes condensation theoretical: car light is the upper-lower position air-vent formation cross-ventilation by light fixture, and in lamp, steam raises and discharges outside lamp from the air-vent of upper position with the temperature in lamp, and the air-vent of upper/lower positions constantly supplements lamp outer air.Thereby reduce steam, the ambiguous phenomenon of lamp scattering of light is occurred, the ventilation plug quantity that this theory is used is many, cannot solve the condensation problem of air themperature lower region in housing.
Utility model content
The technical problem that the utility model mainly solves is to provide large vapor transfer rate coated film paster for a kind of automobile lamp, can there is the coating of one-way wet-guide and have the ability of air proof, make the wetness in car light be in reduced levels, thereby the luminous intensity distribution performance of car light is not had to an influence power.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: large vapor transfer rate coated film paster for a kind of automobile lamp is provided, comprise: film carrier tape manufactured using and large vapor transfer rate coated film, described large vapor transfer rate coated film comprises eptfe membrane layer and hydrophilic radical coating, hydrophilic radical coating is coated on a side surface of eptfe membrane layer, hydrophilic radical coating and described film carrier tape manufactured using composite joint.
In preferred embodiment of the utility model, hydrophilic radical coating layer thickness is 0.012mm-0.025mm.
In preferred embodiment of the utility model, between hydrophilic radical coating and described film carrier tape manufactured using, for low stickiness, be connected.
In preferred embodiment of the utility model, between hydrophilic radical coating and described film carrier tape manufactured using, pass through pressure sensitive adhesive tape compound sticking.
In preferred embodiment of the utility model, described film carrier tape manufactured using is polyethylene PE film carrier band.
In preferred embodiment of the utility model, this patch shape is circle or rectangle.
In preferred embodiment of the utility model, it between this paster and automobile lamp housing, is welding or bonding connection.
The beneficial effects of the utility model are: the utlity model has good moisture absorption performance, by in housing to the characteristic of the unidirectional lasting discharge water vapour of external environment condition, to guarantee in the housing of automobile lamp the generation without knot mist condensation phenomenon, make car light illumination performance not be subject to the impact of moist air environment, also avoided electric electronic element surface sweating to cause the generation of short circuit; Can stop the infiltration of rainwater dust, make to reach free of contamination dirt level of confidentiality in the housing of automobile lamp; Chinese Kenaf Core Buffer super fine can adsorb car light plastic housing because being subject to thermogenetic volatile matter simultaneously, is conducive to car light minute surface and keeps light reflection performance.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation of large vapor transfer rate coated film paster one preferred embodiment for the utility model automobile lamp;
Fig. 2 is the right view of large vapor transfer rate coated film paster for automobile lamp shown in Fig. 1;
Fig. 3 is the structural representation of another preferred embodiment of large vapor transfer rate coated film paster for the utility model automobile lamp;
Fig. 4 is the right view of large vapor transfer rate coated film paster for automobile lamp shown in Fig. 3;
In accompanying drawing, the mark of each parts is as follows: 1, film carrier tape manufactured using, 2, eptfe membrane layer, 3, hydrophilic radical coating, 4, pressure sensitive adhesive tape.
The specific embodiment
Below the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-Fig. 4, the utility model embodiment comprises:
Large vapor transfer rate coated film paster for a kind of automobile lamp, comprise: film carrier tape manufactured using 1 and large vapor transfer rate coated film, described large vapor transfer rate coated film comprises eptfe membrane layer 2 and contains Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3, contain the side surface that Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3 is coated on eptfe membrane layer 2, contain Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3 and described film carrier tape manufactured using 1 composite joint.
The described coating agent that contains Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3 comprises that the raw material uniform stirring of following weight percentage makes:
Polyurethanes 20%-25%;
Solvent dimethylformamide 55%-60%;
Hydrophilic radical solvent 2%-5%;
Chinese Kenaf Core Buffer super fine 18%-25%.
Wherein, the viscosity index (VI) of coating agent is 33 Pa.s.In coating agent, comprise 35% nonvolatile matter.
The manufacture craft of Chinese Kenaf Core Buffer super fine comprises: first Chinese Kenaf Core Buffer is processed as to meal, and carry out pretreatment, carry out successively again thinning processing and activation processing, after finishing dealing with, dry, carry out again modification, then carry out miniaturization processing, finally carry out separating treatment, make Chinese Kenaf Core Buffer super fine.
Modification is in the Chinese Kenaf Core Buffer of pulverizing after drying, to add a certain amount of methyl diphenylene diisocyanate and a small amount of polyalcohol to realize polymeric modification.
The polyurethanes emulsion adopting, contain Chinese Kenaf Core Buffer super fine, the macromolecular compound of contain in polyurethane ester molecular structure-NHCOO-unit, its cardinal principle is on polymer chain, to introduce appropriate hydrophilic radical, and spontaneous dispersion under certain condition forms emulsion, in the large molecule of PU, contains a large amount of polar groups, molecular separating force is very strong, cause it to have good film forming, can on fabric, form tough and tensile and durable film, it also has certain poisture-penetrability.
Its reason is: polar group or hydrophilic radical in one side PU, as-OH ,-NHCOO-,-COOH, " chemical ladder stone " effect of Chinese Kenaf Core Buffer superfine powder etc., makes water vapour molecule along ladder from high humility one side, move to low humidity one side; Theoretically, on macromolecular chain, mainly contain hydrophilic radical, and as long as hydrophilic radical content and arrangement are suitable, they just can with hydrone effect, by hydrogen bond and other intermolecular force, after high humility one side draught attached water part, by hydrophilic radical on macromolecular chain, be delivered to low humidity one side desorb.Therefore, thoroughly wet is in fact the process of " absorption one diffusion-transfer-desorb ".Hydrophilic radical is referred to as " chemical ladder stone ", in the situation that there is pressure differential, moisture content by a side positioning to opposite side, shift.This process is wet process thoroughly namely.
In polyurethanes emulsion glaze, add 18 ~ 25% Chinese Kenaf Core Buffer super fine, the Chinese Kenaf Core Buffer super fine adding has 0.5 ~ 0.2 a large amount of μ m micropore and cracks, and contains more hydrophilic active group, forms copolymerization coating adhesive; The thoroughly wet factor content of cellulose that contains Chinese Kenaf Core Buffer super fine is large, has a large amount of hydroxyls to make itself and water molecules group many, has micro-groove and micropore simultaneously, has increased moisture absorption area and diffusion area.Compare with conventional PU coating, the water absorption rate of the copolymerization coating adhesive that contains Chinese Kenaf Core Buffer super fine has improved 10% left and right, water vapour permeability has improved 1 ~ 5 times, greatly improved automobile lamp by inside to outside ventilating capability, make car light inside continue to keep very low humidity and occur without knot mist condensation phenomenon, thus the harmful effect of elimination car light interior focusing photograph; The copolymerization coating adhesive that contains Chinese Kenaf Core Buffer super fine, after graft copolymerization, molecule rearranges and becomes and intersect firmly Space Idea, and surface is also finer and close, stable, evenly.Improved the performance such as the water pressure resistance intensity of the coated film of large vapor transfer rate, light aging resisting, heat ageing for automobile lamp.
The manufacturing process of eptfe membrane layer 2 comprises;
1) by polytetrafluoroethyldispersion dispersion resin and liquid extrusion aid in proportion (5:1) mix (can add coloring agent therein, meet the multifarious demand of film color);
2) 30 ℃ of-35 ℃ of maturations of insulation, give and are pressed into cylinder blank;
3) by rolling process, cylinder blank is laminated;
4) through heating 100 ℃ of left and right, slough extrusion aid;
5) simple tension, draft temperature is 200 ℃ of left and right, then biaxial tension, and draft temperature is 200 ℃ of left and right;
6) thermal finalization, the temperature sintering 18min 340 ℃ of left and right;
7) last, cooling, rolling, makes expanded PTFE microporous membrane.
The microporous membrane material of expanded PTFE (ePTFE) is called for short " ePTFE film ", and " ePTFE " is the literary sketch of expanded PTFE English word (expanded polytetrafluorethylene); The microporous membrane of expanded PTFE (ePTFE) is a kind of macromolecule new material film with specific function high added value, through special process, through biaxial tension, make, the microfibre of this film has formed the inside and outside micropore in 0.1 penetrating μ m aperture, μ m ~ 18, is the ventilated membrane of real meaning.Film surface can reach tens micropores per square inch, each micro-pore diameter is less than the minimum of a value (20 μ m-100 μ m) of the mist globule, and much larger than water vapour molecule diameter (0.0003 μ m-0.0004 μ m), can make steam pass through and water droplet can not pass through greatly because of surperficial tension, utilize this microcellular structure can reach outstanding Waterproof Breathable function; In addition because the tiny and longitudinal substandard bend alignment of this hole extreme, be used in auto electric (car light) electronic equipment protection aspect, though can make the air in auto electric (car light) electronic equipment regulate pressure balance by this film convection current, reach free of contamination dirt close.
The preparation technology of large vapor transfer rate coated film comprises the following steps:
A) add the raw material that contains Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3, and to regulate gluing thickness, gluing thickness be 0.012mm-0.025mm;
B) unreel eptfe membrane layer 2, and contact gluing with above-mentioned raw materials, on eptfe membrane layer 2 surface, form and contain Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3;
C) will contain Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3 and carry out heating, drying, the temperature of heating, drying is 80 ℃-100 ℃;
D) under temperature is the environment of 20 ℃-40 ℃, deposit at least 24h maturation and solidify, make large vapor transfer rate coated film.
Coating contains hydrophilic radical and hydrone effect, by hydrogen bond and other intermolecular force, after high humility one side draught attached water part, by hydrophilic radical on macromolecular chain, is delivered to low humidity one side desorb.Therefore, thoroughly wet be in fact one at hydrophilic radical polyurethanes coating surface " absorption " stream molecule---hydrone in hydrophilic radical polyurethanes coating laterally " diffusion "---on hydrone combination interface face at hydrophilic radical polyurethanes coating and eptfe membrane " desorb "---hydrone enters the densely covered micropore of eptfe membrane and discharges moisture to external environment condition " process.Hydrophilic radical is referred to as " chemical ladder stone ", in the situation that there is pressure differential, moisture content by a side positioning to opposite side, shift.This process is wet process thoroughly namely.
Through lot of experiments, find that the vapor transfer rate that steam is discharged from coated side to eptfe membrane side is greater than the vapor transfer rate that steam is discharged from eptfe membrane side direction coated side, the difference of two thoroughly wet directions causes the difference of vapor transfer rate, from coated side to passing through inside amount wet than vapor transfer rate 30 ~ 50% left and right in eptfe membrane side direction housing, utilize the greatest differences of the vapor transfer rate of this both direction, this coated film is applied on the housing of automobile lamp, the coated side of this coated film is in the housing of automobile lamp, the eptfe membrane of this coated film is atmosphere towards the outside, steam in the housing of automobile lamp is constantly discharged in a steady stream like this, show by housing to the characteristic of the unidirectional lasting discharge water vapour of external environment condition, when automobile lamp is worked, when temperature in housing is higher, the hydrophilic high mol segment of coating is more active, absorption, it is faster that diffusion reconciliation suction goes out the speed of water vapour molecule, humidity in the housing of automobile lamp reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of automobile lamp or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of automobile lamp is brought into play.
As shown in Figure 1, contain between Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3 and described film carrier tape manufactured using 1 and be connected for low stickiness.
When low stickiness connects, the manufacture craft of this paster comprises the following steps:
A) will there is low-viscosity carrier band film and do technological preparation with large vapor transfer rate coated film;
B) carrier band film is connected with 3 the low stickiness of Chinese Kenaf Core Buffer super fine hydrophilic radical coating that contain of large vapor transfer rate coated film;
C) hemisection cross cutting is to carrier band film surface;
F) last, remove waste material, after the assay was approved rolling.
As Fig. 3, contain between Chinese Kenaf Core Buffer super fine hydrophilic radical coating 3 and described film carrier tape manufactured using 1 by pressure sensitive adhesive tape 4 compound stickings.
During compound sticking, the manufacture craft of this paster comprises the following steps:
A) carrier band film, pressure sensitive adhesive tape 4 and large vapor transfer rate coated film are done to technological preparation;
B) by carrier band film and pressure sensitive adhesive tape 4 one side composite joints;
C) endoporus of clicking technique locating hole and pressure-sensitive cushion rubber;
D) remove the release liners of pressure sensitive adhesive, pressure sensitive adhesive tape 4 opposite sides are compound with the coat side of large vapor transfer rate coated film;
E) surperficial to carrier band film with fabrication hole location hemisection cross cutting;
F) last, remove waste material, after the assay was approved rolling.
The utility model preferred film carrier band 1 is polyethylene PE film carrier band 1.As shown in Figure 2 and Figure 4, this patch shape is circle or rectangle.Between this paster and automobile lamp housing, be welding or bonding connection, and coat side is towards automobile lamp housing.
Paster of the present utility model has good moisture absorption performance, the thoroughly wet factor content of cellulose that contains Chinese Kenaf Core Buffer super fine is large, there is a large amount of hydroxyls to make itself and water molecules group many, have micro-groove and micropore simultaneously, increased moisture absorption area and diffusion area.After application the utility model, can guarantee the interior generation without knot mist condensation phenomenon of housing of automobile lamp, make electric property not be subject to the impact of moist air environment, thoroughly overturn American-European-Japanese conventional method to humidity control and regulation in housing.
Lot of experiments finds that the vapor transfer rate that steam is discharged from coated side to eptfe membrane side is greater than the vapor transfer rate that steam is discharged from eptfe membrane side direction coated side, the difference of two thoroughly wet directions causes the difference of vapor transfer rate, from coated side to passing through inside amount wet than large 30 ~ 50% left and right of vapor transfer rate in eptfe membrane side direction housing, utilize the greatest differences of the vapor transfer rate of this both direction, this coated film is applied on the housing of automobile lamp, the coated side of this coated film is in the housing of automobile lamp, the eptfe membrane of this coated film is atmosphere towards the outside, steam in the housing of automobile lamp is constantly discharged in a steady stream like this, show by housing to the characteristic of the unidirectional lasting discharge water vapour of external environment condition, when automobile lamp is worked, when temperature in housing is higher, the hydrophilic high mol segment of coating is more active, absorption, it is faster that diffusion reconciliation suction goes out the speed of water vapour molecule, humidity in the housing of automobile lamp reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of automobile lamp or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of automobile lamp is brought into play.
Paster of the present utility model show by housing to the characteristic of the unidirectional lasting discharge water vapour of external environment condition, make in housing air dry, the steam thoroughly having changed in the housing of former automobile lamp relies on the loose mist of cross-ventilated principle to go the pattern of revealing.
The existing good absorption property of paster of the present utility model, can stop again the infiltration of rainwater dust, makes to reach free of contamination dirt level of confidentiality in the housing of automobile lamp, the coated side of this coated film is in the housing of automobile lamp, and the eptfe membrane of this coated film is atmosphere towards the outside, the discharge that steam in the housing of automobile lamp is able to continuously again like this, show by housing to the characteristic of the unidirectional lasting discharge water vapour of external environment condition, when automobile lamp is worked, when temperature in housing is higher, the hydrophilic high mol segment of coating is more active, absorption, it is faster that diffusion reconciliation suction goes out the speed of water vapour molecule, humidity in the housing of automobile lamp reduces thereby does not possess the condition of condensation greatly, air in housing is dried, on minute surface in the housing of automobile lamp or smooth electronical elements surface just do not have fog phenomenon and produce, the performance of automobile lamp is brought into play, Chinese Kenaf Core Buffer super fine can adsorb car light plastic housing because being subject to thermogenetic volatile matter simultaneously, is conducive to car light minute surface and keeps light reflection performance.
Paster of the present utility model also has and has excellent uvioresistant performance, this utility model has solved the defect problem in background technology, the performance of this material has met the performance of automobile lamp and other small-sized sophisticated electronics (mobile phone, navigation terminal, microcomputer etc.) dependable performance completely, in waterproof and dustproof, grease proofing, the comprehensive requirement of protection such as wet, anti-oxidant solution corrosion thoroughly.
Paster of the present utility model has further reduced automobile lamp eliminating the design and manufacture cost of steam to its performance impact, makes shell moulding simplicity.
Paster of the present utility model also has airtight body (allowing water vapour molecule to discharge) and the high characteristic of resistance to seepage pressure, more than the water pressure resistance of this coated film has reached 10000mm height water column (relative pressure 100KPa pressure), this coated film paster can keep out that dell ponding soaks or the impact of the middle impact water that travels, and makes to keep dry in housing and can not soak.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. a large vapor transfer rate coated film paster for automobile lamp, it is characterized in that, comprise: film carrier tape manufactured using and large vapor transfer rate coated film, described large vapor transfer rate coated film comprises eptfe membrane layer and hydrophilic radical coating, hydrophilic radical coating is coated on a side surface of eptfe membrane layer, hydrophilic radical coating and described film carrier tape manufactured using composite joint.
2. large vapor transfer rate coated film paster for automobile lamp according to claim 1, is characterized in that, hydrophilic radical coating layer thickness is 0.012mm-0.025mm.
3. large vapor transfer rate coated film paster for automobile lamp according to claim 1, is characterized in that, between hydrophilic radical coating and described film carrier tape manufactured using, for low stickiness, is connected.
4. large vapor transfer rate coated film paster for automobile lamp according to claim 1, is characterized in that, passes through pressure sensitive adhesive tape compound sticking between hydrophilic radical coating and described film carrier tape manufactured using.
5. large vapor transfer rate coated film paster for automobile lamp according to claim 1, is characterized in that, described film carrier tape manufactured using is polyethylene PE film carrier band.
6. large vapor transfer rate coated film paster for automobile lamp according to claim 1, is characterized in that, this patch shape is circle or rectangle.
7. large vapor transfer rate coated film paster for automobile lamp according to claim 1, is characterized in that, is welding or bonding connection between this paster and automobile lamp housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294891.1U CN203888319U (en) | 2014-06-05 | 2014-06-05 | High-water vapor transmission rate coating film chip for automobile lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420294891.1U CN203888319U (en) | 2014-06-05 | 2014-06-05 | High-water vapor transmission rate coating film chip for automobile lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203888319U true CN203888319U (en) | 2014-10-22 |
Family
ID=51714765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420294891.1U Expired - Lifetime CN203888319U (en) | 2014-06-05 | 2014-06-05 | High-water vapor transmission rate coating film chip for automobile lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203888319U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029450A (en) * | 2014-06-05 | 2014-09-10 | 常州市泛亚微透科技有限公司 | High water vapor transmission rate coating film paster for automobile lamp |
| WO2015139383A1 (en) * | 2014-03-20 | 2015-09-24 | 常州市泛亚微透科技有限公司 | Coating film patch for automotive electric and electronic devices and manufacturing method for the coating film patch |
| WO2015139385A1 (en) * | 2014-03-20 | 2015-09-24 | 常州市泛亚微透科技有限公司 | Continuous unidirectional breathable coating film for automotive electrical and electronic devices and manufacturing method for the coating film |
| WO2015184665A1 (en) * | 2014-06-05 | 2015-12-10 | 常州市泛亚微透科技有限公司 | Coating film having high water vapor transmission rate |
| CN108426361A (en) * | 2018-04-13 | 2018-08-21 | 中国科学院理化技术研究所 | Membrane type total heat exchanger for water vapor heat recovery |
-
2014
- 2014-06-05 CN CN201420294891.1U patent/CN203888319U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015139383A1 (en) * | 2014-03-20 | 2015-09-24 | 常州市泛亚微透科技有限公司 | Coating film patch for automotive electric and electronic devices and manufacturing method for the coating film patch |
| WO2015139385A1 (en) * | 2014-03-20 | 2015-09-24 | 常州市泛亚微透科技有限公司 | Continuous unidirectional breathable coating film for automotive electrical and electronic devices and manufacturing method for the coating film |
| CN104029450A (en) * | 2014-06-05 | 2014-09-10 | 常州市泛亚微透科技有限公司 | High water vapor transmission rate coating film paster for automobile lamp |
| WO2015184665A1 (en) * | 2014-06-05 | 2015-12-10 | 常州市泛亚微透科技有限公司 | Coating film having high water vapor transmission rate |
| CN104029450B (en) * | 2014-06-05 | 2016-02-10 | 江苏泛亚微透科技股份有限公司 | The large vapor transfer rate coated film paster of automobile lamp |
| CN108426361A (en) * | 2018-04-13 | 2018-08-21 | 中国科学院理化技术研究所 | Membrane type total heat exchanger for water vapor heat recovery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203888319U (en) | High-water vapor transmission rate coating film chip for automobile lamp | |
| CN103862766B (en) | Auto electric electronic equipment coated film paster and manufacture method thereof | |
| CN104029449A (en) | Coating film with large moisture permeability | |
| CN103862728B (en) | Auto electric electronic equipment coated film and the manufacture method thereof continuing unidirectional moisture-inhibiting | |
| CN104033868B (en) | Moisture-permeable bolt for automobile lamp | |
| CN104029450B (en) | The large vapor transfer rate coated film paster of automobile lamp | |
| JP6117503B2 (en) | Moisture permeable waterproof membrane | |
| CN105140451A (en) | Lithium-ion battery diaphragm and preparation method thereof | |
| KR101301595B1 (en) | Micro porous separator coated with ceramics and its preparing method | |
| CN103044917B (en) | A kind of aromatic polysulfonamide Quito pore membrane and its preparation method and application | |
| CN104742480A (en) | Preparation method of waterproof and moisture permeable TPU fabric | |
| CN203893134U (en) | Moisture-permeable stopper for automobile lamp | |
| CN113594632A (en) | Low-moisture solvent type PVDF coating diaphragm | |
| CN103980831B (en) | The protection of welded type car light hydrophobic oleophobic microporous membrane paster and manufacture method thereof | |
| CN113161692A (en) | Ceramic coating, ceramic coating diaphragm and preparation method and application thereof | |
| CN101921536B (en) | Waterborne polyurethane film and preparation technology thereof | |
| CN104029642B (en) | Moisture-inhibiting parts and manufacture method thereof for auto electric electronic equipment | |
| CN203888320U (en) | Coating film with large water vapor transmission rate | |
| TWI501452B (en) | Heat-resistant porous separator and method for manufacturing thereof | |
| CN203805435U (en) | Coating film paster for automobile electrical and electronic device | |
| CN203805394U (en) | Coating film with continuous one-way moisture permeability for automobile electrical and electronic device | |
| JP5444156B2 (en) | Water vapor permeation preventive porous membrane, ventilation structure and case | |
| CN103933874B (en) | Car light protection hydrophobic oleophobic microporous barrier and manufacture method thereof | |
| CN202682933U (en) | Film composite filtering material | |
| CN105034512A (en) | Varicosity teflon film back rubber sheet with patterns on surface and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000, No. 28-8, Sakamoto Road, Sakamoto village, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213000, No. 28-8, Sakamoto Road, Sakamoto village, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (CHANGZHOU) Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 213000 No.8 Qiancao Road, Lijia Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: PANASIAN MICROVENT TECH (JIANGSU) Corp. Address before: 213000, No. 28-8, Sakamoto Road, Sakamoto village, Lijia Town, Wujin District, Jiangsu, Changzhou Patentee before: PANASIAN MICROVENT TECH (JIANGSU) Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |