CN109251446A - A kind of high water absorption is low to be swollen anti-condensation thin-film material and its preparation method and application - Google Patents
A kind of high water absorption is low to be swollen anti-condensation thin-film material and its preparation method and application Download PDFInfo
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- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
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- C08J2481/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
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Abstract
The invention proposes low anti-condensation thin-film materials of swelling of a kind of high water absorption and its preparation method and application, belong to anti-condensation technical field.The present invention includes hydrophobic polymer perforated membrane and ion exchange resin, and hydrophobic polymer perforated membrane is matrix, and hydrophobic polymer perforated membrane has multiple holes, and ion exchange resin is filled in the hole of hydrophobic polymer perforated membrane.Ion exchange resin is initially dissolved in organic solvent, is filled in the hole of hydrophobic polymer perforated membrane under the action of organic solvent, solvent flashing, and anti-condensation thin-film material is obtained.The water imbibition of anti-condensation thin-film material of the invention is strong, swelling ratio is low, is used for air-conditioning, clarifier and new blower surface, avoids dew condensation phenomenon, it is more not in the phenomenon that water droplet is blown off with user, the not viscous glutinous dust in surface, not will cause bacteria breed, easy to use, safety is beautiful, the structure design of original household appliances, at low cost, sense that the user experience is improved are not changed.
Description
Technical field
The present invention relates to anti-condensation technical field, particularly relate to a kind of anti-condensation thin-film material of the low swelling of high water absorption and its
Preparation method and application.
Background technique
Condensation is that a kind of aerial moisture reaches the natural phenomena coagulated when dew point, in air-conditioning, clarifier, new
Blower etc. needs usually occur in the household appliances of air filtration condensation, such as: air-conditioning is in process of refrigerastion, air conditioner indoor unit
Air outlet edge and wind deflector etc. when encountering the higher hot-air of indoor humidity in the cold surface at hot and cold air alternating position,
The condensation of water droplet can occur on its surface, form condensation.The formation of condensation, which will lead to, there is ponding below air conditioner indoor unit, this
When the dew that kind is formed is blown out, it there is also the phenomenon that water droplet is fallen on user, seriously affect user experience；Even
With the increase of humidity, bacterium easy to breed is detrimental to health.
Currently, generalling use additional increase electric heating in order to reduce condensation adverse effect or easily being sent out in condensation
Raw position adheres to Flocked fabric, to adsorb to condensation, reduces condensation blowout, avoids bacteria breed brought by humidity increase etc.
Problem.However, electrically heated increase increases other than cost except for an additional, the risk that electric elements are contacted with water also will increase, together
When need to change the household appliances such as air-conditioning structure design；And hold the dirts such as dust easy to stick simultaneously other than water suction using Flocked fabric
Contaminate object influence household appliances appearance, for a long time using be easier to breed bacterium.
Summary of the invention
The present invention proposes that a kind of high water absorption is low and is swollen anti-condensation thin-film material and its preparation method and application, solves existing
The problem of anti-condensation facility cost is high in technology, safety is poor and influences the structure and appearance property of household appliances.
A kind of low anti-condensation thin-film material of swelling of high water absorption of the invention, technical solution are achieved in that including dredging
Waterborne polymeric perforated membrane and ion exchange resin, the hydrophobic polymer perforated membrane are matrix, the hydrophobic polymer
Perforated membrane has multiple holes, and the ion exchange resin is filled in the hole of the hydrophobic polymer perforated membrane.
The present invention fills amberlite in hole configurations inside it using hydrophobic polymer perforated membrane as matrix
Rouge, ion exchange resin have hygroscopicity, can achieve the purpose for preventing condensation, and hydrophobic polymer perforated membrane has excellent
Mechanical property is not susceptible to be swollen in water, and it is porous that the ion exchange resin fastness after water suction is strapped in hydrophobic polymer
In the hole of film intrinsic silicon, it is suppressed that the Swelling after ion exchange resin water suction improves anti-condensation thin-film material
Mechanical strength.Wherein, ion exchange resin is initially dissolved in organic solvent, is formed resin solution and is then filled out resin solution
It fills in the hole of hydrophobic polymer perforated membrane, finally, after being finished to organic solvent volatilization, being obtained anti-condensation by heating
Thin-film material；Organic solvent is solvent A and solvent B according to the mixed solvent that volume ratio is that 9:1-6:4 is formed, solvent A N, N-
Dimethylformamide, n,N-dimethylacetamide, N-Methyl pyrrolidone, any one or a few in deionized water, solvent B
For any one or a few in acetone, ethyl alcohol, the solid content of resin solution is 4-10%.Solid content refers to the solid in slurry
(divided by the quality of all components of composition slurry, (unit g), actually solid content are that reflection slurry is viscous to unit g) to gross mass
The parameter of degree, the measuring method of solid content are as follows: 2 grams or so of original sample is accurately weighed in surface plate using assay balance, is placed in baking
In case, under conditions of 105-108 DEG C, drying 3 hours, weighing is taken out, continuous to be put into baking oven, similarity condition handles 30min, takes again
It weighs, is so repeated twice out；Compare data three times, see whether reach constant weight, then according to solid content=drying constant weight/material
Solid content is calculated in original weight × 100%.The water imbibition of the anti-condensation thin-film material is strong, and swelling ratio is low, for air-conditioning, purification
Device and new blower surface, avoid dew condensation phenomenon, are more not in the phenomenon that water droplet is blown off with user, and surface is not viscous glutinous
Dust not will cause bacteria breed, easy to use, and safety is beautiful, and the structure without changing original household appliances designs, cost
It is low, greatly improve user experience.
Embodiment as one preferred also contains inorganic porous material in the ion exchange resin, described inorganic
Weight content of the porous material in the ion exchange resin is no more than 5%.Inorganic porous material is generally powdered, inorganic
Porous material and ion exchange resin are filled into together in the hole of hydrophobic polymer perforated membrane, and it is anti-condensation to further increase this
The water absorbing properties of thin-film material.
Embodiment as one preferred, the inorganic porous material are appointing in silica gel, zeolite, molecular sieve or MOF
Meaning is one or more of.Zeolite has ion exchangeable, adsorbing separation, catalytic, stability, chemical reactivity, reversible de-
Aqueous, electrical conductance etc., it is sodium aluminosilicate that usually used, which is natural zeolite, here；Molecular sieve refers to artificial synthesized have
The hydrated aluminosilicate for screening molecular action, the hole in duct and marshalling with many uniform pore diameters, different pore size
Molecular sieve separates different sizes and shapes molecule；MOF full name is Metal organic Framework, and referred to as metal is organic
Framework compound or metal-organic framework materials can also write MOFs, are a kind of hybrid inorganic-organic materials, are also referred to as coordinated
Polymer has three-dimensional pore structure, and generally using metal ion as tie point, the support of organic ligand position constitutes space 3D and extends,
It is the important novel porous materials of another class except zeolite and carbon nanotube.
Embodiment as one preferred, the inorganic porous material are to have carried out the inorganic more of cationic exchange in advance
Porous materials.Inorganic porous material of the invention can carry out cationic exchange, such as carry out Na+、Li+Exchange, molecular sieve, silica gel etc.
Ion exchange can be carried out, such as: molecular sieve is immersed in LiCl solution, molecular sieve will carry out Li+Exchange, has carried out sun
Inorganic porous material after ion exchange can further increase the moisture pick-up properties of anti-condensation thin-film material.
Embodiment as one preferred, the ion exchange resin are cation exchange resin or anion exchange tree
Rouge.Ion exchange resin of the invention selects bibulous cation exchange resin or anion exchange resin, excellent
Moisture pick-up properties substantially increases the user experience of anti-condensation thin-film material.
Embodiment as one preferred, the cation exchange resin are to contain carboxyl, sulfonic group, hydroxyl, quaternary ammonium
Any one or a few in the cation exchange resin of group and its salt, the anion exchange resin be containing acid imide or
Any one or a few in the anion exchange resin of quaternary ammonium salt.Cation exchange resin of the invention, which is selected, has hydrophilic group
The cation exchange resin of group and its salt, a variety of cation exchange resins can be used in compounding, a variety of cation exchange resin associations
Same-action, moisture absorption is more preferably；Anion exchange resin and cation exchange resin of the invention is hygroscopicity resin, moisture absorption
Ability is strong, and soaking effect is good.
Embodiment as one preferred, the hydrophobic polymer perforated membrane are polysulfones, polyimides, polytetrafluoroethyl-ne
In alkene, Kynoar, polypropylene, polyethylene, poly(aryl ether ketone), polyether sulphone or polyetherimide any one preparation and
At.Hydrophobic polymer perforated membrane of the invention selects excellent in mechanical performance, also, is not susceptible to the polymer of swelling in water
Material is made, the aperture hole with multiple perforations, and hole can be the borehole structure that perforation structure either penetrates through；Usually
In the case of, the pore size of hydrophobic polymer perforated membrane is 100nm-25um, porosity 25-70%, with a thickness of 60-
200um, tensile strength 20-100MPa.
Embodiment as one preferred, the pore method of the hydrophobic polymer perforated membrane are phase inversion or small
Synthesized by molecular template.Certainly, the pore method of hydrophobic polymer perforated membrane of the invention can also be other methods, according to corresponding
The property of material select suitable pore method, keep its hole configurations complete, convenient for filling.
A kind of preparation method of the low anti-condensation thin-film material of swelling of high water absorption of the invention, technical solution are realized in
: the following steps are included: 1) taking ion exchange resin, it is dissolved in organic solvent, forms resin solution；The organic solvent is
According to the mixed solvent that volume ratio is that 9:1-6:4 is formed, the solvent A is n,N-Dimethylformamide, N by solvent A and solvent B,
N- dimethyl acetamide, N-Methyl pyrrolidone, any one or a few in deionized water, the solvent B is acetone, ethyl alcohol
In any one or a few, the solid content of the resin solution is 4-10%；2) hydrophobic polymer perforated membrane is taken, by step
1) resulting resin solution is cast on the surface of hydrophobic polymer perforated membrane, at 80-120 DEG C, dry 12-48h, and removing
Organic solvent obtains anti-condensation thin-film material.
Ion exchange resin elder generation solvent of the invention in organic solvent, under the action of organic solvent, amberlite
Rouge has obtained fully dispersed, organic solvent Proper Match, the surface tension on hydrophobic polymer perforated membrane matrix surface
Smaller, viscosity is suitable for reducing the surface tension of resin solution, it is more to enter hydrophobic polymer for resin solution under the effect of gravity
In the hole configurations of pore membrane, it is ensured that ion exchange resin is smoothly filled into the hole of hydrophobic polymer perforated membrane, filling effect
Rate is high；The preparation method is simple, and process flow is short, and temperature is low, will not be poly- to filled ion exchange resin and hydrophobicity
It closes object perforated membrane matrix to damage, using effect is good.
A kind of application of the low anti-condensation thin-film material of swelling of high water absorption of the invention, technical solution are achieved in that
Surface of the anti-condensation thin-film material for air-conditioning, clarifier, new blower, with anti-condensation.The anti-condensation thin-film material has
The advantage that water imbibition is strong and swelling ratio is low, is used for air-conditioning, clarifier and new blower surface, avoids dew condensation phenomenon, will not more go out
The phenomenon that existing water droplet is blown off with user；The not viscous glutinous dust in its surface, not will cause bacteria breed, easy to use, safety beauty
It sees, the structure without changing original household appliances designs, and it is at low cost, greatly improve user experience.
Compared with prior art, the beneficial effects of the present invention are: the present invention is using hydrophobic polymer perforated membrane as matrix,
Filling ion-exchange resin in its internal hole configurations, ion exchange resin have hygroscopicity, hydrophobic polymer perforated membrane
It with excellent mechanical property, is not susceptible to be swollen in water, has achieved the purpose that prevent condensation, the amberlite after water suction
Rouge fastness is strapped in the hole of hydrophobic polymer perforated membrane intrinsic silicon, it is suppressed that molten after ion exchange resin water suction
Swollen phenomenon improves the mechanical strength of anti-condensation thin-film material；Rationally, viscosity is suitable for that surface tension is small, really for organic solvent matching
It protects ion exchange resin to be smoothly filled into the hole of hydrophobic polymer perforated membrane, charging efficiency is high, and process flow is short, operation
Temperature is low, will not damage to filled ion exchange resin and hydrophobic polymer perforated membrane matrix；It is resulting anti-
The water imbibition of condensation thin-film material is strong, and swelling ratio is low, is used for air-conditioning, clarifier and new blower surface, avoids dew condensation phenomenon, more
It is not in the phenomenon that water droplet is blown off with user, the not viscous glutinous dust in surface not will cause bacteria breed, and it is easy to use,
Safety is beautiful, and the structure without changing original household appliances designs, at low cost, greatly improves user experience.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is that the water absorption rate of the resulting anti-condensation thin-film material of the embodiment of the present invention one and swelling ratio vary with temperature trend
Figure；
Fig. 2 is the electron scanning micrograph figure of the resulting hydrophobic polymer perforated membrane of the embodiment of the present invention two；
Fig. 3 is that the water absorption rate of the resulting anti-condensation thin-film material of the embodiment of the present invention two and swelling ratio vary with temperature trend
Figure；
Fig. 4 is that the water absorption rate of the resulting anti-condensation thin-film material of the embodiment of the present invention three and swelling ratio vary with temperature trend
Figure；
Fig. 5 is that the water absorption rate of existing porous film material and swelling ratio vary with temperature tendency chart；
--- --- ■ --- --- ■: water absorption rate curve is indicated in figure: ■；
▼ --- ----▼ --- ----▼: indicates swelling ratio curve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of low anti-condensation thin-film material of swelling of high water absorption of the invention, including hydrophobic polymer perforated membrane and ion are handed over
Change resin, the hydrophobic polymer perforated membrane is matrix, and the hydrophobic polymer perforated membrane has multiple holes, it is described from
Sub-exchange resin is filled in the hole of the hydrophobic polymer perforated membrane.
Preferably, also contain inorganic porous material in the ion exchange resin, the inorganic porous material it is described from
Weight content in sub-exchange resin is no more than 5%.
Specifically, the inorganic porous material is any one or a few in silica gel, zeolite, molecular sieve or MOF.
Further, the inorganic porous material is the inorganic porous material for having carried out cationic exchange in advance.
It is highly preferred that the ion exchange resin is cation exchange resin or anion exchange resin.
More specifically, the cation exchange resin is the sun containing carboxyl, sulfonic group, hydroxyl, quaternary ammonium group and its salt
Any one or a few in ion exchange resin, the anion exchange resin are the anion containing acid imide or quaternary ammonium salt
Any one or a few in exchanger resin.
Further, the hydrophobic polymer perforated membrane is polysulfones, polyimides, polytetrafluoroethylene (PTFE), polyvinylidene fluoride
Any one in alkene, polypropylene, polyethylene, poly(aryl ether ketone), polyether sulphone or polyetherimide is prepared.
Again less preferably, the pore method of the hydrophobic polymer perforated membrane is phase inversion or small molecule template.
A kind of preparation method of the anti-condensation thin-film material of the low swelling of high water absorption of the invention, comprising the following steps: 1) take from
Sub-exchange resin is dissolved in organic solvent, forms resin solution；The organic solvent is solvent A and solvent B according to volume ratio
For the mixed solvent of 9:1-6:4 composition, the solvent A is n,N-Dimethylformamide, n,N-dimethylacetamide, N- methyl pyrrole
Any one or a few in pyrrolidone, deionized water, the solvent B are acetone, any one or a few in ethyl alcohol, described
The solid content of resin solution is 4-10%；2) hydrophobic polymer perforated membrane is taken, the resulting resin solution of step 1) is cast in
On the surface of hydrophobic polymer perforated membrane, at 80-120 DEG C, dry 12-48h removes organic solvent, obtains anti-condensation film
Material.
A kind of application of the low anti-condensation thin-film material of swelling of high water absorption of the invention, technical solution are achieved in that
Surface of the anti-condensation thin-film material for air-conditioning, clarifier, new blower, with anti-condensation.
Embodiment one
A kind of preparation method of the low anti-condensation thin-film material of swelling of high water absorption of the invention, comprising the following steps:
1) it takes the micron order polyvinylidene fluoride porous film of purchase as hydrophobic polymer perforated membrane, sulfonated polyether sulfone is taken to make
For ion exchange resin to be filled；
2) under room temperature, ion exchange resin is dissolved in the in the mixed solvent of n,N-dimethylacetamide and ethyl alcohol, wherein
Mixed solvent is made of the n,N-dimethylacetamide of 70 parts by volume and the ethyl alcohol of 30 parts by volume, is uniformly mixed, solid content is made
For 4% resin solution；
3) by the resulting uniformly mixed resin solution of step 2), it is cast in the hydrophobic polymer perforated membrane base of step 1)
On the surface of body, under the effect of gravity, resin solution enters in the hole configurations of hydrophobic polymer perforated membrane, then, is placed in
In 80 DEG C of baking oven, after solvent volatilizees completely, anti-condensation thin-film material is obtained.
In order to verify the water absorbing properties and dimensional stability of resulting anti-condensation thin-film material, to its water absorption rate and swelling ratio
It is tested, experimental result is as shown in Fig. 1, and the anti-condensation thin-film material that the present invention obtains it can be seen from attached drawing 1 is 60
Maximum water absorption rate at DEG C has reached 45%, and at the same time, swelling ratio only has 0.7%, this illustrates of the invention anti-condensation thin
Membrane material has good water imbibition, meanwhile, swelling ratio is very low.
Embodiment two
A kind of preparation method of the low anti-condensation thin-film material of swelling of high water absorption of the invention, comprising the following steps:
1) preparation of hydrophobic polymer perforated membrane --- phase inversion
Three-necked flask is taken, agitating paddle and drying tube are connected；Take 4,4- diamines diphenyl ether and pyromellitic acid anhydride according to rubbing
You add n,N-dimethylacetamide as solvent, so that gained than being that 1:1 is mixed, and is added in above-mentioned three-necked flask
Polymer solution solid content be 10%, stir 12h；Then, using embrane method is scraped, by polymer knifing on the surface of glass panel
On, (water and ethyl alcohol volume ratio 1:1) is immersed in the mixed solution of water and ethyl alcohol rapidly, and Immersion time 20s then takes out, sets
In vacuum drying oven, 80 DEG C of drying obtain having the polyamides of microcellular structure sub- finally, being warming up to 350-400 DEG C of vacuum solidification 4h
Amine hydrophobic polymer perforated membrane matrix；
2) it takes sulfonated polystyrene as ion exchange resin to be filled, ion exchange resin is dissolved in N, N- diformazan
The in the mixed solvent of base formamide and acetone, wherein mixed solvent by 80 parts by volume n,N-Dimethylformamide and 20 volumes
The acetone composition of part, is uniformly mixed, the resin solution that manufactured solid content is 10%；
3) by the resulting uniformly mixed resin solution of step 2), it is porous to be cast in the resulting hydrophobic polymer of step 1)
On the surface of film matrix, under the effect of gravity, resin solution enters in the hole configurations of hydrophobic polymer perforated membrane, then,
It is placed in 100 DEG C of baking oven, dry 12h obtains anti-condensation thin-film material after solvent volatilizees completely.
The transmission electron microscope photo of the resulting hydrophobic polymer perforated membrane of the present invention is as shown in Fig. 2, by attached drawing 2
As can be seen that the resulting polyimide porous membrane of phase inversion has many clearly holes, hole configurations is perforation
Structure.
In order to verify the water absorbing properties and dimensional stability of resulting anti-condensation thin-film material, to its water absorption rate and swelling ratio
It is tested, experimental result is as shown in Fig. 3, and the anti-condensation thin-film material that the present invention obtains it can be seen from attached drawing 3 is 60
Maximum water absorption rate at DEG C has reached 47.2%, and at the same time, swelling ratio only has 2.1%, this illustrates of the invention anti-condensation
Thin-film material has good water imbibition, meanwhile, swelling ratio is very low.
Embodiment three
A kind of preparation method of the low anti-condensation thin-film material of swelling of high water absorption of the invention, comprising the following steps:
1) preparation of hydrophobic polymer perforated membrane --- small molecule template
It takes ethyl alcohol to mix with n,N-dimethylacetamide according to volume ratio for 1:3, mixed solvent is made, and glucose is added
It is added to above-mentioned in the mixed solvent, is uniformly dissolved, the glucose solution that weight percentage is 0.05% is prepared into；Polyether sulfone is taken,
It is added in above-mentioned glucose solution, the polyethers sulfolane solution that solid content is 12% is made, stir to transparent；Then, this is transparent
Solution, which is cast on the surface of horizontal glass panel, carries out casting film, each dry 12h in 60 DEG C and 80 DEG C of baking oven, then takes out true
Sky drying for 24 hours, obtains film；Film is removed, boils 4h in deionized water, glucose small molecule is removed, obtains polyether sulfone
Hydrophobic polymer perforated membrane；
2) take the sulfonated polyether sulfone that sulfonation degree is 50% as ion exchange resin to be filled, by amberlite liposoluble
In the mixed solvent of the solution in n,N-Dimethylformamide and acetone, wherein N of the mixed solvent by 80 parts by volume, N- dimethyl methyl
Amide and the acetone of 20 parts by volume composition, are uniformly mixed, and the resin solution that solid content is 6% is made；
3) by the resulting uniformly mixed resin solution of step 2), it is porous to be cast in the resulting hydrophobic polymer of step 1)
On the surface of film matrix, under the effect of gravity, resin solution enters in the hole configurations of hydrophobic polymer perforated membrane, then,
It is placed in 120 DEG C of baking oven, dry 12h obtains anti-condensation thin-film material after solvent volatilizees completely.
Under normal conditions, the polyethersulfone porous membrane of small molecule template preparation has many fine and closely woven holes, and hole is
The borehole structure of perforation.In order to verify the water absorbing properties and dimensional stability of resulting anti-condensation thin-film material, to its water absorption rate
It is tested with swelling ratio, experimental result is as shown in Fig. 4, the anti-condensation film that the present invention obtains it can be seen from attached drawing 4
Water absorption rate of the material under 60 DEG C (air-conditioner air outlet high-temperature temperature) has reached 36.0%, and at the same time, swelling ratio only has
2.2%, this illustrates that anti-condensation thin-film material of the invention has good water imbibition, meanwhile, swelling ratio is very low.
According to existing phase inversion, (solvent bath is the sulfonated polyether sulfone that sulfonation degree used in Example three is 50%
Second alcohol and water is 1:1 composition according to volume ratio) sulfonated polyether sulfone perforated membrane is directly prepared, and its water absorption rate and swelling ratio are carried out
Test, experimental result is as shown in Fig. 5, it can be seen from attached drawing 5 at 20-60 DEG C, this existing perforated membrane water absorption rate by
27% is changed to 38% or so, and swelling ratio is also changed to 16% or so by 5%；This is compared with embodiment three, two kinds of perforated membranes
Water absorption rate it is essentially identical, still, the swelling ratio of existing perforated membrane but be significantly larger than embodiment three swelling ratio, also,
At 60 DEG C, existing porous membrane swelling ratio is nearly 8 times of swelling ratio in embodiment three；Therefore, anti-condensation film material of the invention
Material has good water imbibition, meanwhile, swelling ratio is substantially reduced.
Compared with prior art, the beneficial effects of the present invention are: the present invention is using hydrophobic polymer perforated membrane as matrix,
Filling ion-exchange resin in its internal hole configurations, ion exchange resin have hygroscopicity, hydrophobic polymer perforated membrane
It with excellent mechanical property, is not susceptible to be swollen in water, has achieved the purpose that prevent condensation, the amberlite after water suction
Rouge fastness is strapped in the hole of hydrophobic polymer perforated membrane intrinsic silicon, it is suppressed that molten after ion exchange resin water suction
Swollen phenomenon improves the mechanical strength of anti-condensation thin-film material；Rationally, viscosity is suitable for that surface tension is small, really for organic solvent matching
It protects ion exchange resin to be smoothly filled into the hole of hydrophobic polymer perforated membrane, charging efficiency is high, and process flow is short, operation
Temperature is low, will not damage to filled ion exchange resin and hydrophobic polymer perforated membrane matrix；It is resulting anti-
The water imbibition of condensation thin-film material is strong, and swelling ratio is low, is used for air-conditioning, clarifier and new blower surface, avoids dew condensation phenomenon, more
It is not in the phenomenon that water droplet is blown off with user, the not viscous glutinous dust in surface not will cause bacteria breed, and it is easy to use,
Safety is beautiful, and the structure without changing original household appliances designs, at low cost, greatly improves user experience.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high water absorption is low to be swollen anti-condensation thin-film material, it is characterised in that: including hydrophobic polymer perforated membrane and ion
Exchanger resin, the hydrophobic polymer perforated membrane are matrix, and the hydrophobic polymer perforated membrane has multiple holes, described
Ion exchange resin is filled in the hole of the hydrophobic polymer perforated membrane.
2. high water absorption according to claim 1 is low to be swollen anti-condensation thin-film material, it is characterised in that:
Also contain inorganic porous material in the ion exchange resin, the inorganic porous material is in the ion exchange resin
Weight content be no more than 5%.
3. high water absorption according to claim 2 is low to be swollen anti-condensation thin-film material, it is characterised in that:
The inorganic porous material is any one or a few in silica gel, zeolite, molecular sieve or MOF.
4. high water absorption according to claim 3 is low to be swollen anti-condensation thin-film material, it is characterised in that:
The inorganic porous material is the inorganic porous material for having carried out cationic exchange in advance.
5. high water absorption according to claim 1 is low to be swollen anti-condensation thin-film material, it is characterised in that:
The ion exchange resin is cation exchange resin or anion exchange resin.
6. high water absorption according to claim 5 is low to be swollen anti-condensation thin-film material, it is characterised in that:
The cation exchange resin is in the cation exchange resin containing carboxyl, sulfonic group, hydroxyl, quaternary ammonium group and its salt
Any one or a few, the anion exchange resin be the anion exchange resin containing acid imide or quaternary ammonium salt in appoint
Meaning is one or more of.
7. high water absorption according to claim 1 is low to be swollen anti-condensation thin-film material, it is characterised in that:
The hydrophobic polymer perforated membrane is polysulfones, polyimides, polytetrafluoroethylene (PTFE), Kynoar, polypropylene, poly- second
Any one in alkene, poly(aryl ether ketone), polyether sulphone or polyetherimide is prepared.
8. high water absorption according to claim 1 is low to be swollen anti-condensation thin-film material, it is characterised in that:
The pore method of the hydrophobic polymer perforated membrane is phase inversion or small molecule template.
9. the preparation method of the low anti-condensation thin-film material of swelling of high water absorption described in any one of -8 according to claim 1,
It is characterized in that: the following steps are included:
1) ion exchange resin is taken, is dissolved in organic solvent, resin solution is formed；The organic solvent is solvent A and solvent B
It is the mixed solvent of 9:1-6:4 composition according to volume ratio, the solvent A is n,N-Dimethylformamide, N, N- dimethylacetamide
Amine, N-Methyl pyrrolidone, any one or a few in deionized water, the solvent B are acetone, any one in ethyl alcohol
Or it is several, the solid content of the resin solution is 4-10%；
2) hydrophobic polymer perforated membrane is taken, the resulting resin solution of step 1) is cast in the table of hydrophobic polymer perforated membrane
On face, at 80-120 DEG C, dry 12-48h removes organic solvent, obtains anti-condensation thin-film material.
10. the application of the low anti-condensation thin-film material of swelling of high water absorption described in any one of -8 according to claim 1, feature
It is:
Surface of the anti-condensation thin-film material for air-conditioning, clarifier, new blower, with anti-condensation.
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Address after: 266101 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant after: Hisense (Shandong) Air-conditioning Co., Ltd. Address before: 266736 Qingdao, Pingdu City, South Village, North Station, Hisense Road, No. 1, No. Applicant before: Hisense (Shandong) Air-conditioning Co., Ltd. |
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