CN106215721A - A kind of preparation method of water purifier antipollution NF membrane - Google Patents
A kind of preparation method of water purifier antipollution NF membrane Download PDFInfo
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- CN106215721A CN106215721A CN201610581095.XA CN201610581095A CN106215721A CN 106215721 A CN106215721 A CN 106215721A CN 201610581095 A CN201610581095 A CN 201610581095A CN 106215721 A CN106215721 A CN 106215721A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
- B01D71/68—Polysulfones; Polyethersulfones
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses the preparation method of a kind of water purifier antipollution NF membrane, comprise the following steps: step 1: first prepare basement membrane；Step 2: then prepare casting solution；Step 3: after basement membrane drying being processed, and its surface is heated to 30 40 DEG C, is then placed in casting solution dipping 24 hours, process whole process ultrasonic disperse at basement membrane dipping, prepare antipollution NF membrane, then NF membrane is washed with deionized water only, then dries.
Description
Technical field
The present invention relates to NF membrane, the preparation method of a kind of water purifier antipollution NF membrane.
Background technology
Serious along with domestic water body pollution, water quality safety is increasingly paid attention to by people, and a lot of families are assembled with domestic
Water purifier, general household water filter is all by filtering material groups such as PP cotton, activated carbon, ultrafiltration, reverse osmosis, cocoanut active charcoals
Become；
In existing household water filter, mainly use reverse osmosis membrane filtration, due to household reverse osmosis film, its desalination
Rate is the highest, and therefore water outlet salinity is substantially zeroed, and household reverse osmosis film needs high-voltage operation, its general operating pressure simultaneously
Need 0.5MP～0.7MP.Existing household water filter is due to the effect of household reverse osmosis film, and it obtains water rate and is generally about 50%,
Therefore water resource waste is serious, and the aquifer yield of every household water-purifying machine every day only has 50～100 gallons.It addition, domestic are anti-
Permeable membrane is generally rolled structure, and its contamination resistance is not strong, and cleaning is complicated, can only periodically be replaced, add
Use cost.
Summary of the invention
The technical problem to be solved is, for the shortcoming of above prior art, proposes a kind of water purifier with anti-
Polluting the preparation method of NF membrane, this NF membrane can not only effectively remove major part divalent ion and fraction monovalence in water
Ion, while reaching desalination purifying water effect, can make human body add to the mineral of trace；And the antifouling effect of NF membrane
Substantially, it addition, the present invention can also be effectively improved household water filter water rate and aquifer yield, simultaneously because low pressure operation, domestic
Operating cost and the manufacturing cost of water purifier also greatly reduce.
In order to solve above-mentioned technical problem, the technical scheme is that and be accomplished by: a kind of water purifier
By the preparation method of antipollution NF membrane, comprise the following steps:
Step 1: first prepare basement membrane, the component of basement membrane is calculated by weight as: cellulose diacetate: 80-90 part, triacetate fiber
Element: 40-50 part, graphite powder: 2-4 part, nano silicon: 8-12 part, potassium permanganate: 12-15 part, Polyethylene Glycol: 2-4 part,
Polyurethane: 3-8 part, cellulose ether: 2-6 part, polysulfones: 22-25 part, polyethylene: 3-5 part, polypropylene: 5-9 part, polyacrylonitrile:
3-6 part；
The preparation method of basement membrane comprises the following steps: by cellulose diacetate, Triafol T, graphite powder, nanometer titanium dioxide
Silicon is put in reactor and is stirred, and mixing speed is 300-400r/min, and whipping temp is 105-120 DEG C, and 2-5 is little in stirring
Time, be then sequentially placed into potassium permanganate, Polyethylene Glycol, Polyurethane, cellulose ether, continue stirring 5-8 hour, then by polysulfones,
Polyethylene, polypropylene, polyacrylonitrile add in reactor, stir 10-15 hour, then pull out film, pull out film temperature and be 60-80 DEG C,
Finally dry, prepare basement membrane；
Step 2: then prepare casting solution, casting solution component is calculated by weight as: epoxy modified silicone resin 50-60 part,
Bisphenol A epoxide resin: 10-14 part, ethyl acetate: 3-8 part, ethanol: 5-7 part, butanol: 8-10 part, deionized water: 100-200
Part, lithium chloride: 5-8 part, diformazan abutment sulfone: 7-9 part: sodium carbonate: 5-9 part: hydrogen peroxide: 1-3 part, sulfolane: 4-8 part；
The preparation method of casting solution: by epoxy modified silicone resin, bisphenol A epoxide resin, ethyl acetate, ethanol, butanol, go
Ionized water, lithium chloride, diformazan abutment sulfone, sodium carbonate, hydrogen peroxide, sulfolane are put in reactor, stir, mixing speed
For 500-600r/min, whipping temp is 100-105 DEG C, stirs 3-5 hour, is subsequently cooled to 50-60 DEG C, is incubated 30-
40min, is then being heated to 95-98 DEG C, is incubated 3-5 hour, then stirs 5-8 hour with 300-350r/min, then air cooling
To room temperature, prepare casting solution；
Step 3: after basement membrane drying being processed, and its surface is heated to 30-40 DEG C, is then placed in casting solution impregnating 2-4
Hour, at the process whole process ultrasonic disperse of basement membrane dipping, prepare antipollution NF membrane, then NF membrane is washed with deionized water
Only, then dry.
The technical scheme that the present invention limits further is:
The preparation method of aforesaid water purifier antipollution NF membrane, the component of basement membrane is calculated by weight as: diacetate fiber
Element: 80 parts, Triafol T: 40 parts, graphite powder: 2 parts, nano silicon: 8 parts, potassium permanganate: 12 parts, Polyethylene Glycol:
2 parts, Polyurethane: 3 parts, cellulose ether: 2 parts, polysulfones: 22 parts, polyethylene: 3 parts, polypropylene: 5 parts, polyacrylonitrile: 3 parts；
Casting solution component is calculated by weight as: epoxy modified silicone resin 50 parts, bisphenol A epoxide resin: 10 parts, acetic acid fourth
Fat: 3 parts, ethanol: 5 parts, butanol: 8 parts, deionized water: 100 parts, lithium chloride: 5 parts, diformazan abutment sulfone: 7 parts: sodium carbonate: 5 parts:
Hydrogen peroxide: 1 part, sulfolane: 4 parts.
The preparation method of aforesaid water purifier antipollution NF membrane, the component of basement membrane is calculated by weight as: two acetic acid
Cellulose: 90 parts, Triafol T: 50 parts, graphite powder: 4 parts, nano silicon: 12 parts, potassium permanganate: 15 parts, poly-second
Glycol: 4 parts, Polyurethane: 8 parts, cellulose ether: 6 parts, polysulfones: 25 parts, polyethylene: 5 parts, polypropylene: 9 parts, polyacrylonitrile: 6
Part；
Casting solution component is calculated by weight as: epoxy modified silicone resin 60 parts, bisphenol A epoxide resin: 14 parts, acetic acid fourth
Fat: 8 parts, ethanol: 7 parts, butanol: 10 parts, deionized water: 200 parts, lithium chloride: 8 parts, diformazan abutment sulfone: 9 parts: sodium carbonate: 9
Part: hydrogen peroxide: 3 parts, sulfolane: 8 parts.
The preparation method of aforesaid water purifier antipollution NF membrane, the component of basement membrane is calculated by weight as: two acetic acid
Cellulose: 88 parts, Triafol T: 45 parts, graphite powder: 3 parts, nano silicon: 10 parts, potassium permanganate: 13 parts, poly-second
Glycol: 3 parts, Polyurethane: 5 parts, cellulose ether: 4 parts, polysulfones: 23 parts, polyethylene: 4 parts, polypropylene: 7 parts, polyacrylonitrile: 5
Part；
Casting solution component is calculated by weight as: epoxy modified silicone resin 53 parts, bisphenol A epoxide resin: 12 parts, acetic acid fourth
Fat: 6 parts, ethanol: 6 parts, butanol: 9 parts, deionized water: 160 parts, lithium chloride: 7 parts, diformazan abutment sulfone: 8 parts: sodium carbonate: 7 parts:
Hydrogen peroxide: 2 parts, sulfolane: 5 parts.
The invention has the beneficial effects as follows: the high-performance NF membrane aquifer yield that the present invention is produced can reach 250～
300L/ (m .h), the aquifer yield in its unit filled volume is far longer than household reverse osmosis film simultaneously.The present invention is produced
High-performance NF membrane operating pressure is 0.1～0.2MP, well below the operating pressure of household reverse osmosis film 0.5～0.7MP,
In Household water purification equipment, this power source of high-pressure pump can be removed, decrease Household water purification equipment manufacturing cost and operating cost.This
The high-performance NF membrane that invention is produced obtains water rate and can reach more than 96%, improves the utilization rate of water resource, and pollution resistance
Can be good.
The high-performance NF membrane of the present invention can not only effectively remove in water major part divalent ion and fraction monovalence from
Son, while reaching desalination purifying water effect, can make human body add to the mineral of trace；It addition, the present invention can also be effectively improved
Household water filter water rate and aquifer yield, simultaneously because low pressure operation, the operating cost of household water filter and manufacturing cost are also
Greatly reduce.
Detailed description of the invention
The present invention is described in further detail below:
Embodiment 1
The preparation method of a kind of water purifier antipollution NF membrane that the present embodiment provides, comprises the following steps:
Step 1: first prepare basement membrane, the component of basement membrane is calculated by weight as: cellulose diacetate: 80 parts, Triafol T:
40 parts, graphite powder: 2 parts, nano silicon: 8 parts, potassium permanganate: 12 parts, Polyethylene Glycol: 2 parts, Polyurethane: 3 parts, cellulose
Ether: 2 parts, polysulfones: 22 parts, polyethylene: 3 parts, polypropylene: 5 parts, polyacrylonitrile: 3 parts；
The preparation method of basement membrane comprises the following steps: by cellulose diacetate, Triafol T, graphite powder, nanometer titanium dioxide
Silicon is put in reactor and is stirred, and mixing speed is 300r/min, and whipping temp is 105 DEG C, stirs 2 hours, the most successively
Put into potassium permanganate, Polyethylene Glycol, Polyurethane, cellulose ether, continue stirring 5 hours, then by polysulfones, polyethylene, polypropylene,
Polyacrylonitrile adds in reactor, stirs 10 hours, then pulls out film, and pulling out film temperature is 60 DEG C, finally dries, and prepares basement membrane；
Step 2: then prepare casting solution, casting solution component is calculated by weight as: epoxy modified silicone resin 50 parts, bis-phenol
A epoxy resin: 10 parts, ethyl acetate: 3 parts, ethanol: 5 parts, butanol: 8 parts, deionized water: 100 parts, lithium chloride: 5 parts, diformazan
Abutment sulfone: 7 parts: sodium carbonate: 5 parts: hydrogen peroxide: 1 part, sulfolane: 4 parts；
The preparation method of casting solution: by epoxy modified silicone resin, bisphenol A epoxide resin, ethyl acetate, ethanol, butanol, go
Ionized water, lithium chloride, diformazan abutment sulfone, sodium carbonate, hydrogen peroxide, sulfolane are put in reactor, stir, mixing speed
For 500r/min, whipping temp is 100 DEG C, stirs 3 hours, is subsequently cooled to 50 DEG C, is incubated 30min, is then being heated to 95
DEG C, it is incubated 3 hours, then stirs 5 hours with 300r/min, then air cooling is to room temperature, prepares casting solution；
Step 3: after basement membrane drying being processed, and its surface is heated to 30 DEG C, is then placed in casting solution dipping 2 hours,
At the process whole process ultrasonic disperse of basement membrane dipping, prepare antipollution NF membrane, then NF membrane is washed with deionized water only, then
Dry.
Embodiment 2
The preparation method of a kind of water purifier antipollution NF membrane that the present embodiment provides, comprises the following steps:
Step 1: first prepare basement membrane, the component of basement membrane is calculated by weight as: cellulose diacetate: 90 parts, Triafol T:
50 parts, graphite powder: 4 parts, nano silicon: 12 parts, potassium permanganate: 15 parts, Polyethylene Glycol: 4 parts, Polyurethane: 8 parts, fiber
Element ether: 6 parts, polysulfones: 25 parts, polyethylene: 5 parts, polypropylene: 9 parts, polyacrylonitrile: 6 parts；
The preparation method of basement membrane comprises the following steps: by cellulose diacetate, Triafol T, graphite powder, nanometer titanium dioxide
Silicon is put in reactor and is stirred, and mixing speed is 400r/min, and whipping temp is 120 DEG C, stirs 5 hours, the most successively
Put into potassium permanganate, Polyethylene Glycol, Polyurethane, cellulose ether, continue stirring 8 hours, then by polysulfones, polyethylene, polypropylene,
Polyacrylonitrile adds in reactor, stirs 15 hours, then pulls out film, and pulling out film temperature is 80 DEG C, finally dries, and prepares basement membrane；
Step 2: then prepare casting solution, casting solution component is calculated by weight as: epoxy modified silicone resin 60 parts, bis-phenol
A epoxy resin: 14 parts, ethyl acetate: 8 parts, ethanol: 7 parts, butanol: 10 parts, deionized water: 200 parts, lithium chloride: 8 parts, diformazan
Abutment sulfone: 9 parts: sodium carbonate: 9 parts: hydrogen peroxide: 3 parts, sulfolane: 8 parts；
The preparation method of casting solution: by epoxy modified silicone resin, bisphenol A epoxide resin, ethyl acetate, ethanol, butanol, go
Ionized water, lithium chloride, diformazan abutment sulfone, sodium carbonate, hydrogen peroxide, sulfolane are put in reactor, stir, mixing speed
For 600r/min, whipping temp is 105 DEG C, stirs 5 hours, is subsequently cooled to 60 DEG C, is incubated 40min, is then being heated to 98
DEG C, it is incubated 5 hours, then stirs 8 hours with 350r/min, then air cooling is to room temperature, prepares casting solution；
Step 3: after basement membrane drying being processed, and its surface is heated to 40 DEG C, is then placed in casting solution dipping 4 hours,
At the process whole process ultrasonic disperse of basement membrane dipping, prepare antipollution NF membrane, then NF membrane is washed with deionized water only, then
Dry.
Embodiment 3
The preparation method of a kind of water purifier antipollution NF membrane that the present embodiment provides, comprises the following steps:
Step 1: first prepare basement membrane, the component of basement membrane is calculated by weight as: cellulose diacetate: 88 parts, Triafol T:
45 parts, graphite powder: 3 parts, nano silicon: 10 parts, potassium permanganate: 13 parts, Polyethylene Glycol: 3 parts, Polyurethane: 5 parts, fiber
Element ether: 4 parts, polysulfones: 23 parts, polyethylene: 4 parts, polypropylene: 7 parts, polyacrylonitrile: 5 parts；
The preparation method of basement membrane comprises the following steps: by cellulose diacetate, Triafol T, graphite powder, nanometer titanium dioxide
Silicon is put in reactor and is stirred, and mixing speed is 360r/min, and whipping temp is 110 DEG C, stirs 3 hours, the most successively
Put into potassium permanganate, Polyethylene Glycol, Polyurethane, cellulose ether, continue stirring 6 hours, then by polysulfones, polyethylene, polypropylene,
Polyacrylonitrile adds in reactor, stirs 12 hours, then pulls out film, and pulling out film temperature is 68 DEG C, finally dries, and prepares basement membrane；
Step 2: then prepare casting solution, casting solution component is calculated by weight as: epoxy modified silicone resin 53 parts, bis-phenol
A epoxy resin: 12 parts, ethyl acetate: 6 parts, ethanol: 6 parts, butanol: 9 parts, deionized water: 160 parts, lithium chloride: 7 parts, diformazan
Abutment sulfone: 8 parts: sodium carbonate: 7 parts: hydrogen peroxide: 2 parts, sulfolane: 5 parts；
The preparation method of casting solution: by epoxy modified silicone resin, bisphenol A epoxide resin, ethyl acetate, ethanol, butanol, go
Ionized water, lithium chloride, diformazan abutment sulfone, sodium carbonate, hydrogen peroxide, sulfolane are put in reactor, stir, mixing speed
For 580r/min, whipping temp is 103 DEG C, stirs 4 hours, is subsequently cooled to 58 DEG C, is incubated 36min, is then being heated to 96
DEG C, it is incubated 4 hours, then stirs 6 hours with 320r/min, then air cooling is to room temperature, prepares casting solution；
Step 3: after basement membrane drying being processed, and its surface is heated to 38 DEG C, is then placed in casting solution dipping 3 hours,
At the process whole process ultrasonic disperse of basement membrane dipping, prepare antipollution NF membrane, then NF membrane is washed with deionized water only, then
Dry.
Above example is only the technological thought that the present invention is described, it is impossible to limit protection scope of the present invention with this, every
The technological thought proposed according to the present invention, any change done on the basis of technical scheme, each fall within scope
Within.
Claims (4)
1. the water purifier preparation method of antipollution NF membrane, it is characterised in that: comprise the following steps:
Step 1: first prepare basement membrane, the component of described basement membrane is calculated by weight as: cellulose diacetate: 80-90 part, three acetic acid
Cellulose: 40-50 part, graphite powder: 2-4 part, nano silicon: 8-12 part, potassium permanganate: 12-15 part, Polyethylene Glycol: 2-4
Part, Polyurethane: 3-8 part, cellulose ether: 2-6 part, polysulfones: 22-25 part, polyethylene: 3-5 part, polypropylene: 5-9 part, polypropylene
Nitrile: 3-6 part；
The preparation method of described basement membrane comprises the following steps: by cellulose diacetate, Triafol T, graphite powder, nanometer two
Silicon oxide is put in reactor and is stirred, and mixing speed is 300-400r/min, and whipping temp is 105-120 DEG C, stirs 2-5
Hour, then it is sequentially placed into potassium permanganate, Polyethylene Glycol, Polyurethane, cellulose ether, continues stirring 5-8 hour, then will be poly-
Sulfone, polyethylene, polypropylene, polyacrylonitrile add in reactor, stir 10-15 hour, then pull out film, and pulling out film temperature is 60-80
DEG C, finally dry, prepare basement membrane；
Step 2: then prepare casting solution, described casting solution component is calculated by weight as: epoxy modified silicone resin 50-60
Part, bisphenol A epoxide resin: 10-14 part, ethyl acetate: 3-8 part, ethanol: 5-7 part, butanol: 8-10 part, deionized water: 100-
200 parts, lithium chloride: 5-8 part, diformazan abutment sulfone: 7-9 part: sodium carbonate: 5-9 part: hydrogen peroxide: 1-3 part, sulfolane: 4-8 part；
The preparation method of described casting solution: by epoxy modified silicone resin, bisphenol A epoxide resin, ethyl acetate, ethanol, fourth
Alcohol, deionized water, lithium chloride, diformazan abutment sulfone, sodium carbonate, hydrogen peroxide, sulfolane are put in reactor, stir, stir
Mixing speed is 500-600r/min, and whipping temp is 100-105 DEG C, stirs 3-5 hour, is subsequently cooled to 50-60 DEG C, insulation
30-40min, is then being heated to 95-98 DEG C, is incubated 3-5 hour, then stirs 5-8 hour with 300-350r/min, then empty
It is cooled to room temperature, prepares casting solution；
Step 3: after basement membrane drying being processed, and its surface is heated to 30-40 DEG C, is then placed in casting solution impregnating 2-4
Hour, at the process whole process ultrasonic disperse of basement membrane dipping, prepare antipollution NF membrane, then NF membrane is washed with deionized water
Only, then dry.
The preparation method of water purifier antipollution NF membrane the most according to claim 1, it is characterised in that: described basement membrane
Component is calculated by weight as: cellulose diacetate: 80 parts, Triafol T: 40 parts, graphite powder: 2 parts, nanometer titanium dioxide
Silicon: 8 parts, potassium permanganate: 12 parts, Polyethylene Glycol: 2 parts, Polyurethane: 3 parts, cellulose ether: 2 parts, polysulfones: 22 parts, polyethylene: 3
Part, polypropylene: 5 parts, polyacrylonitrile: 3 parts；
Described casting solution component is calculated by weight as: epoxy modified silicone resin 50 parts, bisphenol A epoxide resin: 10 parts, second
Acid fourth fat: 3 parts, ethanol: 5 parts, butanol: 8 parts, deionized water: 100 parts, lithium chloride: 5 parts, diformazan abutment sulfone: 7 parts: sodium carbonate:
5 parts: hydrogen peroxide: 1 part, sulfolane: 4 parts.
The preparation method of water purifier antipollution NF membrane the most according to claim 1, it is characterised in that: described basement membrane
Component is calculated by weight as: cellulose diacetate: 90 parts, Triafol T: 50 parts, graphite powder: 4 parts, nanometer titanium dioxide
Silicon: 12 parts, potassium permanganate: 15 parts, Polyethylene Glycol: 4 parts, Polyurethane: 8 parts, cellulose ether: 6 parts, polysulfones: 25 parts, polyethylene: 5
Part, polypropylene: 9 parts, polyacrylonitrile: 6 parts；
Described casting solution component is calculated by weight as: epoxy modified silicone resin 60 parts, bisphenol A epoxide resin: 14 parts, second
Acid fourth fat: 8 parts, ethanol: 7 parts, butanol: 10 parts, deionized water: 200 parts, lithium chloride: 8 parts, diformazan abutment sulfone: 9 parts: carbonic acid
Sodium: 9 parts: hydrogen peroxide: 3 parts, sulfolane: 8 parts.
The preparation method of water purifier antipollution NF membrane the most according to claim 1, it is characterised in that: described basement membrane
Component is calculated by weight as: cellulose diacetate: 88 parts, Triafol T: 45 parts, graphite powder: 3 parts, nanometer titanium dioxide
Silicon: 10 parts, potassium permanganate: 13 parts, Polyethylene Glycol: 3 parts, Polyurethane: 5 parts, cellulose ether: 4 parts, polysulfones: 23 parts, polyethylene: 4
Part, polypropylene: 7 parts, polyacrylonitrile: 5 parts；
Described casting solution component is calculated by weight as: epoxy modified silicone resin 53 parts, bisphenol A epoxide resin: 12 parts, second
Acid fourth fat: 6 parts, ethanol: 6 parts, butanol: 9 parts, deionized water: 160 parts, lithium chloride: 7 parts, diformazan abutment sulfone: 8 parts: sodium carbonate:
7 parts: hydrogen peroxide: 2 parts, sulfolane: 5 parts.
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| CN201610581095.XA CN106215721A (en) | 2016-07-22 | 2016-07-22 | A kind of preparation method of water purifier antipollution NF membrane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587903A (en) * | 2016-12-15 | 2017-04-26 | 苏州纽东精密制造科技有限公司 | Environment-friendly film for car roof |
| CN106582322A (en) * | 2016-12-14 | 2017-04-26 | 苏州纽东精密制造科技有限公司 | Preparation method for anti-pollution nanofiltration membrane used for automobile |
| CN109289549A (en) * | 2018-11-07 | 2019-02-01 | 温州莲华环保科技有限公司 | A kind of high temperature resistant organic solvent-resistant high-performance seperation film and preparation method thereof |
| CN110694486A (en) * | 2019-11-06 | 2020-01-17 | 杭州科盟滤材有限公司 | Method and equipment for manufacturing supporting layer-free filter membrane |
| CN113546531A (en) * | 2021-09-18 | 2021-10-26 | 山东招金膜天股份有限公司 | Preparation method and device of composite reverse osmosis membrane |
-
2016
- 2016-07-22 CN CN201610581095.XA patent/CN106215721A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106582322A (en) * | 2016-12-14 | 2017-04-26 | 苏州纽东精密制造科技有限公司 | Preparation method for anti-pollution nanofiltration membrane used for automobile |
| CN106587903A (en) * | 2016-12-15 | 2017-04-26 | 苏州纽东精密制造科技有限公司 | Environment-friendly film for car roof |
| CN109289549A (en) * | 2018-11-07 | 2019-02-01 | 温州莲华环保科技有限公司 | A kind of high temperature resistant organic solvent-resistant high-performance seperation film and preparation method thereof |
| CN110694486A (en) * | 2019-11-06 | 2020-01-17 | 杭州科盟滤材有限公司 | Method and equipment for manufacturing supporting layer-free filter membrane |
| CN113546531A (en) * | 2021-09-18 | 2021-10-26 | 山东招金膜天股份有限公司 | Preparation method and device of composite reverse osmosis membrane |
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