CN106082401A - Generate preparation method and the generation method of alkaline water of the barrier film of alkaline water - Google Patents
Generate preparation method and the generation method of alkaline water of the barrier film of alkaline water Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2287—After-treatment
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
- C02F2001/4619—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water only cathodic or alkaline water, e.g. for reducing
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/46115—Electrolytic cell with membranes or diaphragms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—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 an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses the preparation method of a kind of barrier film generating alkaline water and the generation method of alkaline water.This preparation method includes: cation exchange membrane is soaked in the alkali metal salt soln that concentration is 2～15wt% by (1), and soak time is 12～36 hours, dries；(2) being soaked in the alkali metal salt soln of 2～10wt% by the cation exchange membrane of step (1) gained, soak time is 6～20 hours, obtains the barrier film of described generation alkaline water；Wherein, described alkali metal salt is water miscible alkali metal salt.The barrier film that the preparation method of the present invention obtains obtains alkaline water when being electrolysed tap water.
Description
Technical field
The present invention relates to the preparation method of a kind of barrier film, especially can generate the preparation method of the barrier film of alkaline water, also relate to
And the method that electrolysis water generates alkaline water.
Background technology
Ion exchange membrane is a kind of polymeric membrane, and it is to carry ion-exchange group on the polymer having a fixed gap
Group.In the solution, the ion-exchange group on film dissociates, and the ion produced that dissociates enters solution, the surface of film and micropore
Passage then stay the fixed group with certain electric charge form internal electric field.Under the effect of external electric field, due to depositing of internal electric field
, ion exchange membrane only allows to pass through with the ion of its internal electric field opposite charge, and the ion identical with internal electric field electric charge is the most not
Can pass through.Here it is the selective penetrated property of ion exchange membrane.Utilize the electrodialytic technique master of the selective penetrated property of ion exchange membrane
It is used for producing high purity water.At present, electrodialytic technique is widely used for desalinization, brackish water desalination, industry water desalination, pot
Stove use water softening etc..
The open a kind of deionization pure water processor of CN103880124B, have several square positive electrode substrates and several
Square negative electrode substrate is interval-staggered, arranges a square insulating framework between each positive electrode substrate and each negative electrode substrate
Assembly；Each insulation frame assembly by insulation frame, dividing plate, insulation net, activated carbon fiber layers, anion exchange membrane and sun from
Proton exchange forms, positive electrode substrate and anion exchange membrane homonymy, negative electrode substrate and cation exchange membrane homonymy；Putting down with dividing plate
It is provided with hole at insulation net on one opposite side of the insulation frame of row, a side is inlet opening, another side is apopore,
All having discharge orifice on each dividing plate, inlet opening and apopore on all adjacent insulation frame assemblies are sequentially connected with；Pass through
Apply electrostatic field, force ion to the electrode transfer with opposite charges so that it is the electric double layer produced by electrode surface adsorbs also
Remove from solution.This device utilizes ion exchange membrane can produce high purity water, and deionization efficiency is high.
CN104671365A discloses continuous electrodeionization device used by a kind of Ultrawater purifier for lab, and it includes fresh water
The elements such as dividing plate, dense water dividing plate, cation exchange membrane, anion exchange membrane, diluted gasket, dense water dividing plate are all located at anode electrode
Between plate and cathode electrode plate, cation exchange membrane, anion exchange membrane, diluted gasket, dense water dividing plate are arranged alternately with each other, sun
Pole battery lead plate is positioned at the outside of outermost dense water dividing plate, and anode end plate covers on anode electrode plate, amberlite lipid layer position
Between cation exchange membrane and anion exchange membrane, cathode end plate covers on cathode electrode plate, the tip side of anode end plate
Being provided with an original water inlet and a wastewater outlet, the bottom end side of anode end plate is provided with dense water inlet, the tip side of cathode end plate
It is provided with a pure water outlet.This device utilizes ion exchange membrane can produce high purity water.
In current water making device, great majority are to utilize ion exchange membrane to produce high purity water, seldom utilize ion to exchange
Film produces alkaline water.From cost-effective and expand the universality of film and consider, how by one ion exchange membrane through simple process
After may be used for producing the problem that different types of electrolysis water becomes the most important.
Summary of the invention
Present inventor it has surprisingly been found that when using after cation exchange membrane processes by ad hoc approach, cation
The performance of exchange membrane there occurs interesting change, uses the method to obtain barrier film during electrolysis tap water, can be the most raw
Become alkaline water, thus complete the present invention.
Based on this, it is an object of the present invention to provide the preparation method of a kind of barrier film generating alkaline water, gained every
Film can only generate alkaline water in the electrolytic process of tap water, and the most do not generate acid water or generate acidity rarely
Water.Another object of the present invention is to provide a kind of method generating alkaline water, it uses the barrier film that said method prepares.
It is an object of the invention to be achieved through the following technical solutions.
The present invention provides the preparation method of a kind of barrier film generating alkaline water, it is characterised in that comprise the steps:
(1) cation exchange membrane is soaked in the alkali metal salt soln that concentration is 2～15wt%, soak time be 12～
36 hours, dry；
(2) cation exchange membrane of step (1) gained is soaked in the alkali metal salt soln of 2～10wt%, during immersion
Between be 6～20 hours, obtain the barrier film of described generation alkaline water；
Wherein, step (1) is the most identical with the alkali metal salt in (2), and is water miscible alkali metal salt.
Method in accordance with the invention it is preferred that described alkali metal salt is selected from sodium chloride, potassium chloride, sodium nitrate or potassium nitrate
In one.
Method in accordance with the invention it is preferred that in step (1), the concentration of described alkali metal salt soln is 3～10wt%,
Described soak time is 18～28 hours.
Method in accordance with the invention it is preferred that in step (1), the temperature of described alkali metal salt soln is 22～28 DEG C；Dry in the air
Dry condition is: temperature is 15～35 DEG C, and relative humidity is 25～60%, and flash-off time is 2～15 hours.
Method in accordance with the invention it is preferred that in step (2), the concentration of described alkali metal salt soln is 2～8wt%, institute
Stating soak time is 10～16 hours, and the temperature of described alkali metal salt soln is 25～30 DEG C.
Method in accordance with the invention it is preferred that the described cation exchange membrane of step (1) exchanges selected from sulfonic acid type ion
Any one in film, phosphate ion exchange membranous type, carboxylic acid type ion exchange membrane.
Method in accordance with the invention it is preferred that the described cation exchange membrane of step (1) is heterogeneous membrane, described out-phase
Film comprises ion exchange resin and binding agent；Described ion exchange resin is selected from styrene type cation exchange resin；Bonding
Agent is selected from polyolefin.
Method in accordance with the invention it is preferred that described method also comprises the steps:
(3) barrier film of described generation alkaline water step (2) obtained is cut out and punches.
The present invention also provides for a kind of method generating alkaline water, comprises the steps:
(A) said method is used to prepare the barrier film generating alkaline water；
(B) tap water is simultaneously introduced in the anode chamber of electrolysis unit and cathode chamber and is electrolysed, described anode chamber and the moon
Room, pole is to separate described electrolysis unit by the barrier film of described generation alkaline water and formed, and generates alkaline water in the cathodic compartment；
Wherein, the hydraulic pressure of tap water is set to 0.2～0.6MPa, and the flow velocity of tap water is set to 1～5L/min, the voltage of electrolytic process
It is set to 3～15V.
According to the present invention generate alkaline water method, it is preferable that in step (B), the hydraulic pressure of tap water be set to 0.3～
0.4MPa, the flow velocity of tap water is set to 2～3L/min, and the voltage of electrolytic process is set to 6～12V.
The ad hoc approach using the present invention processes the barrier film that cation exchange membrane obtains, it is possible to the most raw during electrolysis water
Become alkaline water, and requisite quality, and generate acid water rarely.According to currently preferred technical scheme, it is possible to more effectively
Ground generates alkaline water, and does not the most generate acid water.It addition, the preparation method of the present invention is simple, it is easy to operation, can directly answer
In existing electrolytic water device, low cost, have a extensive future.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to
This.
＜ cation exchange membrane ＞
In the present invention, using cation exchange membrane as processing object, so that it may be used for generating alkaline water.The present invention
Cation exchange membrane can be selected from any one in sulfonic acid type, phosphatic type, carboxylic acid type, preferably sulfonic acid type or carboxylic acid type, more
It is preferably sulfonic acid type.The cation exchange membrane of the present invention can be heterogeneous membrane.The heterogeneous membrane of the present invention comprises ion exchange resin
And binding agent, it is also possible to include additive.Ion exchange resin can be styrene type cation exchange resin；Binding agent is permissible
For polyolefin.
In the present invention, the example as the styrene type cation exchange resin of ion exchange resin includes but not limited to
001 × 7 type cation exchange resin, 001 × 7FC type cation exchange resin, 001 × 7MB type cation exchange resin, 001
× 8 type cation exchange resiies, 001 × 10 type cation exchange resin, D001 type cation exchange resin, D001FC type sun from
Sub-exchange resin, D001MB type cation exchange resin.Concrete manufacturer includes Zhengguang Resin Co., Ltd..As
Preferably, the styrene type cation exchange resin of the present invention include 001 × 7 type cation exchange resin, 001 × 7FC type sun from
Sub-exchange resin, 001 × 7MB type cation exchange resin, 001 × 8 type cation exchange resin, 001 × 10 type cation are handed over
Change resin.As it is further preferred that the styrene type cation exchange resin of the present invention include 001 × 7 type cation exchange resin,
001 × 7FC type cation exchange resin, 001 × 7MB type cation exchange resin.
In the present invention, the polyolefin as binding agent can include polyolefin homopolymer, polyolefin copolymer, polyolefin
The derivant of homopolymer and the derivant of polyolefin copolymer.Concrete example includes but not limited to polyethylene, polypropylene, gathers
N-butene, polystyrene, polrvinyl chloride, polyvinyl alcohol, chlorosulfonated polyethylene etc..The polyethylene of the present invention can be that high density is gathered
Ethylene, Low Density Polyethylene and/or linear low density polyethylene.As preferably, the polyethylene of the present invention is Low Density Polyethylene
And/or linear low density polyethylene.
In the present invention, described additive includes but not limited to antioxidant, stabilizer, toughener etc..The present invention's is anti-
Oxygen agent can be aromatic amine antioxidant or Hinered phenols antioxidant, also can comprise auxiliary antioxidant.Aromatic amine antioxygen
The example of agent includes but not limited to diphenylamines, p-phenylenediamine and dihydroquinoline etc..As preferably, the antioxidant of the present invention is for being obstructed
Phenolic antioxidant, concrete example includes but not limited to 2,6-di-tert-butyl-4-methy phenol, 4,4'-thiobis (the tertiary fourth of 6-
Base-3-methylphenol), four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester (antioxidant 1010).Auxiliary
The example of antioxidant includes thio-2 acid dibasic acid esters, double Lauryl Alcohol ester, double ten four carbon alcohols esters and double octadecanol esters etc., often with
Hinered phenols antioxidant is also used.The antioxidant example of the present invention includes but not limited to antioxidant 1010, antioxidant 1076, antioxidant
CA, antioxidant 164, antioxidant DNP, antioxidant TNP, antioxidant TPP, antioxidant MB, antioxidant 264 etc..The present invention stablizes
Agent includes but not limited to calcium stearate, zinc stearate；It is preferably calcium stearate.The toughener of the present invention includes but not limited to poly-different
Butylene, styrene butadiene styrene block copolymer (SBS), EP rubbers, ethylene propylene diene rubber, nitrile rubber, butadiene-styrene rubber,
Natural rubber, butadiene rubber etc.；It is preferably polyisobutylene and/or styrene butadiene styrene block copolymer (SBS).
By above-mentioned ion exchange resin and the mix homogeneously such as binding agent and additive, then it is processed to form heterogeneous membrane.Root
According to one preferred embodiment of the invention, described cation exchange membrane can be made up of the component including following weight portion:
In the present invention, amberlite cosmetics can be 001 × 7 type strongly acidic styrene type cation exchange resin；
The melt index of Low Density Polyethylene is 1.35～1.6 grams/10 points；The melt index of linear low density polyethylene be 0.85～
1.0 grams/10 points；The molecular weight of polyisobutylene is 400～5,000,000；The chlorinty of chlorosulfonated polyethylene is 35～36wt%, sulfur-bearing
Amount is 0.9～1.1wt%；The melt index of styrene butadiene styrene block copolymer (SBS) is 0.8～3.0 gram/10 parts；Anti-
Oxidant is preferably four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester (antioxidant 1010).By above-mentioned
Raw material obtains cation exchange membrane by steps such as mixing, calenderings, repeats no more here.In the present invention, melt index is all
Measure under conditions of temperature 220 DEG C, load are 10kg.
The cation exchange membrane of the present invention may be used without commercial goods, the 3365 of such as Shanghai Chemical Plant Co., Ltd., on
The 3361BW etc. of marine water chemical treatment Materials Co., Ltd.
＜ generates preparation method ＞ of the barrier film of alkaline water
The preparation method of the barrier film generating alkaline water of the present invention, comprises the steps:
(1) cation exchange membrane is soaked in the alkali metal salt soln that concentration is 2～15wt%, soak time be 12～
36 hours, dry；
(2) cation exchange membrane of step (1) gained is soaked in the alkali metal salt soln of 2～10wt%, during immersion
Between be 6～20 hours, obtain the barrier film of described generation alkaline water；
Wherein, step (1) is the most identical with the alkali metal salt in (2), and is water miscible alkali metal salt.
In the present invention, described preparation method can also comprise the steps:
(3) barrier film of described generation alkaline water step (2) obtained is cut out and punches.
In the step (1)～(2) of the present invention, described alkali metal salt can be selected from sodium chloride, potassium chloride, sodium nitrate or nitre
One in acid potassium；It is preferably sodium chloride or potassium chloride, more preferably sodium chloride.
In the step (1) of the present invention, the concentration of alkali metal salt soln can be 2～15wt%, preferably 2～
12wt%, more preferably 3～10wt%, be further preferably 4～8wt%.The soak time of step (1) can be 12～36 hours,
Preferably 15～30 hours, more preferably 18～28 hours, most preferably 20～26 hours.The alkali metal salt soln of step (1)
Temperature can be 15～35 DEG C, preferably 15～32 DEG C, more preferably 18～30 DEG C.According to one preferred enforcement of the present invention
Mode, in step (1), the temperature of alkali metal salt soln is 22～28 DEG C.
In the step (1) of the present invention, the condition of drying is: temperature is 15～35 DEG C, and relative humidity is 25～60%, dries
Time is 2～15 hours.Preferably, described in the condition of drying be temperature be 20～30 DEG C, relative humidity is 35～55%, when drying
Between be 3～8 hours.The condition of drying described in it is highly preferred that be temperature be 22～28 DEG C, relative humidity is 38～52%, when drying
Between be 3～5 hours.
In the step (2) of the present invention, the concentration of alkali metal salt soln can be 2～10wt%, preferably 2～8wt%,
More preferably 3～6wt%.In step (2), soak time can be 6～20 hours, preferably 8～18 hours, is further preferably 10
～16 hours.The temperature of the middle alkali metal salt soln of step (2) can be 15～35 DEG C, preferably 15～32 DEG C, more preferably
18～30 DEG C.According to one preferred embodiment of the invention, the temperature of the alkali metal salt soln of step (2) is 25～30 DEG C.
According to one of the present invention preferred embodiment, the preparation method of the barrier film generating alkaline water of the present invention, including
Following steps:
(1) cation exchange membrane is soaked in concentration be 3～8wt%, temperature be in the sodium chloride solution of 22～28 DEG C, leaching
Bubble time 20～26 hours, take out, being placed in temperature is 22～28 DEG C, relative humidity be 38～52% environment in, dry 3～5
Hour；
(2) cation exchange membrane of step (1) gained is soaked in concentration be 2～6wt%, temperature be the chlorine of 25～30 DEG C
Change in sodium solution, soak time 10～16 hours, take out, obtain the barrier film of described generation alkaline water.
In the step (3) of the present invention, the barrier film of described generation alkaline water step (2) obtained is cut out and punches.Will
The barrier film of described generation alkaline water is cut out as rectangle, and punches at four angles of barrier film generating alkaline water, in order to by institute
The barrier film stating generation alkaline water is fixedly installed in electrolytic water device.The barrier film of described generation alkaline water is fixedly installed in electrolysis water
Between negative electrode and the anode of device, for electrolysis unit being divided into anode chamber and cathode chamber.The barrier film of described generation alkaline water
The size cut out matches with the plant bulk of installation barrier film in electrolytic water device, and for example, 100mm × 200mm, 200mm ×
400mm、400mm×800mm、800mm×1600mm。
Generation method ＞ of ＜ alkaline water
The generation method of the alkaline water of the present invention includes preparation process and (B) of the barrier film of (A) aforementioned generation alkaline water
Electrolysis water step.
Step (A) is as it was previously stated, repeat no more here.Step (B) is described below in detail.Tap water is simultaneously introduced electrolysis
Being electrolysed in the anode chamber of device and cathode chamber, described anode chamber and cathode chamber are to be divided by the barrier film of described generation alkaline water
Formed every described electrolysis unit, the cathode chamber of electrolysis unit generates alkaline water.The tap water of the present invention can be in mistake
Use after filter.The electrolytic water device of the present invention can be electrolysis bath, and its septation uses the life that the preparation method of the present invention obtains
Become the barrier film of alkaline water.
In step (B), barrier film both sides are all passed through tap water, and the hydraulic pressure of tap water is set to 0.2～0.6MPa, are preferably
0.3～0.4MPa；The flow velocity of tap water is set to 1～5L/min, preferably 2～3L/min；Voltage is set to 3～15V, preferably
It is 6～12V.In the present invention, it is provided that the power supply of voltage is DC source, can be linear direct current motor source or pulse dc power,
More preferably pulse dc power.According to one of the present invention preferred embodiment, in the described method preparing alkaline water, from the beginning
The hydraulic pressure of water is set to 0.3～0.4MPa, and the flow velocity of tap water is set to 2～3L/min, and voltage is set to 6～12V.In employing
The method of stating can generate alkaline water at cathode chamber, and pH can be 8～11, does not the most generate acid water or seldom in anode chamber
Ground generates acid water.
The preparation of preparation example 1-cation exchange membrane
By 6kg chlorosulfonated polyethylene (CSM-40) and 28kg polyisobutylene (BASF Aktiengesellschaft, B200) at mixing roll
In mixing, add 100kg Low Density Polyethylene (melt index is 1.5 grams/10 minutes), 20kg linear low density polyethylene (molten
Melting index is 1 gram/10 minutes), 3kg styrene-butadiene-styrene (melt index is 2 grams/10 minutes), 1kg resist
Oxygen agent 1010, obtains premix material in mixing 10 minutes at 120 DEG C；5kg calcium stearate is added in this premix material, mixing uniformly after
Adding 400kg cation exchange resin powder (001 × 7 type strongly acidic styrene type cation exchange resin), mix homogeneously obtains
To compound；By compound prolong machine press formation thickness be the diaphragm of 0.40 ± 0.03mm, rolling temperature is 80 DEG C；By above-mentioned
Diaphragm embeds two-layer to be strengthened between terylene screen cloth, by hydraulic press 150 DEG C, hot pressing 60 minutes under 0.5Mpa, obtains cation
Exchange membrane.
Embodiment 1-generates the preparation method of the barrier film of alkaline water
(1) cation exchange membrane of preparation example 1 is placed in temperature be 18 DEG C, concentration be 6wt% sodium chloride solution in soak
Steep 22 hours, take out cation exchange membrane, then temperature be 20 DEG C, relative humidity be to dry 5 hours under conditions of 40%；
(2) cation exchange membrane of step (1) gained is placed in temperature be 25 DEG C, concentration be the sodium chloride solution of 3wt%
Middle immersion 10 hours, obtains generating the barrier film of alkaline water.
Embodiment 2-generates the preparation method of the barrier film of alkaline water
(1) cation exchange membrane of preparation example 1 is placed in temperature be 18 DEG C, concentration be 8wt% sodium chloride solution in soak
Steep 20 hours, take out cation exchange membrane, then temperature be 25 DEG C, relative humidity be to dry 3 hours under conditions of 40%；
(2) cation exchange membrane of step (1) gained is placed in temperature be 25 DEG C, concentration be the sodium chloride solution of 2wt%
Middle immersion 15 hours, obtains generating the barrier film of alkaline water.
Embodiment 3-generates the preparation method of the barrier film of alkaline water
(1) cation exchange membrane of preparation example 1 is placed in temperature be 18 DEG C, concentration be 5wt% sodium chloride solution in soak
Steep 24 hours, take out cation exchange membrane, then temperature be 15 DEG C, relative humidity be to dry 6 hours under conditions of 30%；
(2) cation exchange membrane of step (1) gained is placed in temperature be 25 DEG C, concentration be the sodium chloride solution of 5wt%
Middle immersion 12 hours, obtains generating the barrier film of alkaline water.
Embodiment 4-generates the preparation method of the barrier film of alkaline water
(1) cation exchange membrane of preparation example 1 is placed in temperature be 18 DEG C, concentration be 10wt% sodium chloride solution in soak
Steep 18 hours, take out cation exchange membrane, then temperature be 30 DEG C, relative humidity be to dry 2.5 hours under conditions of 40%；
(2) cation exchange membrane of step (1) gained is placed in temperature be 25 DEG C, concentration be the sodium chloride solution of 5wt%
Middle immersion 15 hours, obtains generating the barrier film of alkaline water.
Embodiment 5-generates the preparation method of the barrier film of alkaline water
(1) cation exchange membrane of preparation example 1 is placed in temperature be 18 DEG C, concentration be 12wt% Klorvess Liquid in soak
Steep 15 hours, take out cation exchange membrane, then temperature be 35 DEG C, relative humidity be to dry 3 hours under conditions of 45%；
(2) cation exchange membrane of step (1) gained is placed in temperature be 25 DEG C, concentration be the Klorvess Liquid of 4wt%
Middle immersion 8 hours, obtains generating the barrier film of alkaline water.
Experimental example 1
The barrier film generating alkaline water of embodiment 1 is arranged between the negative electrode in electrolysis bath and anode, is divided into anode
Room and cathode chamber.Anode chamber and cathode chamber each lead into tap water, and the hydraulic pressure of tap water is set to 0.4MPa, the flow velocity of tap water
For 2L/min, voltage is 12V.
Along with the carrying out of electrolysis, the cathode chamber at electrolysis bath obtains alkaline water, and anode chamber does not the most generate acid water.Logical
Crossing resistance controller regulation voltage, the pH value of alkaline water can be in the range of 8～11.After testing, alkaline water free chlorine contains at 25 DEG C
Amount is less than-150mV less than 0.05mg/L, the oxidation-reduction potential ORP value of alkaline water.
Experimental example 2
The barrier film generating alkaline water of embodiment 5 is arranged between the negative electrode in electrolysis bath and anode, is divided into anode
Room and cathode chamber.Anode chamber and cathode chamber each lead into tap water, and the hydraulic pressure of tap water is set to 0.4MPa, the flow velocity of tap water
For 2L/min, voltage is 12V.
Along with the carrying out of electrolysis, the cathode chamber at electrolysis bath obtains alkaline water, and anode chamber generates acid water rarely.Pass through
Resistance controller regulation voltage, the pH value of alkaline water can be in the range of 8～11.After testing, alkaline water free chlorine contents at 25 DEG C
Less than 0.05mg/L, the oxidation-reduction potential ORP value of alkaline water is less than-150mV.
Experimental example 3
By the barrier film generating alkaline water that the membrane replacement generating alkaline water in experimental example 1 is embodiment 3, other conditions
Constant, prepare alkaline water.
Along with the carrying out of electrolysis, the cathode chamber at electrolysis bath obtains alkaline water, and anode chamber does not the most generate acid water.Logical
Crossing resistance controller regulation voltage, the pH value of alkaline water can be in the range of 8～11.After testing, alkaline water free chlorine contains at 25 DEG C
Amount is less than-150mV less than 0.05mg/L, the oxidation-reduction potential ORP value of alkaline water.
Experimental example 4
By the barrier film generating alkaline water that the membrane replacement generating alkaline water in experimental example 1 is embodiment 3, other conditions
Constant, prepare alkaline water.
Along with the carrying out of electrolysis, the cathode chamber at electrolysis bath obtains alkaline water, and anode chamber does not the most generate acid water.Logical
Crossing resistance controller regulation voltage, the pH value of alkaline water can be in the range of 8～11.After testing, alkaline water free chlorine contains at 25 DEG C
Amount is less than-150mV less than 0.05mg/L, the oxidation-reduction potential ORP value of alkaline water.
The present invention is not limited to above-mentioned embodiment, in the case of without departing substantially from the flesh and blood of the present invention, and this area skill
Art personnel it is contemplated that any deformation, improve, replace and each fall within the scope of the present invention.
Claims (10)
1. the preparation method of the barrier film generating alkaline water, it is characterised in that comprise the steps:
(1) being soaked in by cation exchange membrane in the alkali metal salt soln that concentration is 2～15wt%, soak time is 12～36 little
Time, dry；
(2) being soaked in the alkali metal salt soln of 2～10wt% by the cation exchange membrane of step (1) gained, soak time is 6
～20 hours, obtain the barrier film of described generation alkaline water；
Wherein, step (1) is the most identical with the alkali metal salt in (2), and is water miscible alkali metal salt.
Method the most according to claim 1, it is characterised in that described alkali metal salt is selected from sodium chloride, potassium chloride, sodium nitrate
Or the one in potassium nitrate.
Method the most according to claim 1, it is characterised in that in step (1), the concentration of described alkali metal salt soln is 3
～10wt%, described soak time is 18～28 hours.
Method the most according to claim 1, it is characterised in that in step (1), the temperature of described alkali metal salt soln is 22
～28 DEG C；The condition dried is: temperature is 15～35 DEG C, and relative humidity is 25～60%, and flash-off time is 2～15 hours.
Method the most according to claim 1, it is characterised in that in step (2), the concentration of described alkali metal salt soln is 2
～8wt%, described soak time is 10～16 hours, and the temperature of described alkali metal salt soln is 25～30 DEG C.
Method the most according to claim 1, it is characterised in that the described cation exchange membrane of step (1) is selected from sulfonic acid type
Any one in ion exchange membrane, phosphate ion exchange membranous type, carboxylic acid type ion exchange membrane.
Method the most according to claim 6, it is characterised in that the described cation exchange membrane of step (1) is heterogeneous membrane, institute
The heterogeneous membrane stated comprises ion exchange resin and binding agent；Described ion exchange resin is selected from polystyrene cation exchange tree
Fat；Binding agent is selected from polyolefin.
8. according to the method described in any one of claim 1～7, it is characterised in that also comprise the steps: that (3) are by step (2)
The barrier film of the described generation alkaline water obtained is cut out and punches.
9. the generation method of an alkaline water, it is characterised in that comprise the steps:
(A) method as described in any one of claim 1～8 is used to prepare the barrier film generating alkaline water；
(B) tap water is simultaneously introduced in the anode chamber of electrolysis unit and cathode chamber and is electrolysed, described anode chamber and cathode chamber
It is to separate described electrolysis unit by the barrier film of described generation alkaline water and formed, generates alkaline water in the cathodic compartment；Wherein,
The hydraulic pressure of tap water is set to 0.2～0.6MPa, and the flow velocity of tap water is set to 1～5L/min, and the voltage of electrolytic process is arranged
It is 3～15V.
Method the most according to claim 9, it is characterised in that in step (B), the hydraulic pressure of tap water be set to 0.3～
0.4MPa, the flow velocity of tap water is set to 2～3L/min, and the voltage of electrolytic process is set to 6～12V.
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| CN201610582911.9A CN106082401A (en) | 2016-07-21 | 2016-07-21 | Generate preparation method and the generation method of alkaline water of the barrier film of alkaline water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111005029A (en) * | 2019-12-31 | 2020-04-14 | 广东省新材料研究所 | Electrolytic aquatic product gas pressure self-balancing device and application thereof |
| CN113737219A (en) * | 2021-08-31 | 2021-12-03 | 北京绿钛科技有限公司 | Device for electrolytic hydrogen production and preventing mixing |
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| CN1470315A (en) * | 2002-07-25 | 2004-01-28 | 上海上化水处理材料有限公司 | Polyethylene heterogeneous ion exchange membrane for electrodialysis desalter of packed bed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111005029A (en) * | 2019-12-31 | 2020-04-14 | 广东省新材料研究所 | Electrolytic aquatic product gas pressure self-balancing device and application thereof |
| CN113737219A (en) * | 2021-08-31 | 2021-12-03 | 北京绿钛科技有限公司 | Device for electrolytic hydrogen production and preventing mixing |
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Application publication date: 20161109 |