CN111440578B - Water-treatment epoxy pouring sealant for preventing hollow fiber membrane from discoloring and preparation method thereof - Google Patents
Water-treatment epoxy pouring sealant for preventing hollow fiber membrane from discoloring and preparation method thereof Download PDFInfo
- Publication number
- CN111440578B CN111440578B CN202010251208.6A CN202010251208A CN111440578B CN 111440578 B CN111440578 B CN 111440578B CN 202010251208 A CN202010251208 A CN 202010251208A CN 111440578 B CN111440578 B CN 111440578B
- Authority
- CN
- China
- Prior art keywords
- parts
- component
- agent
- curing agent
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/56—Amines together with other curing agents
- C08G59/60—Amines together with other curing agents with amides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The invention discloses a water treatment epoxy pouring sealant for preventing a hollow fiber membrane from discoloring, which comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 50-98 parts of epoxy resin; 1-5 parts of a toughening agent; 5-20 parts of an active diluent; 0.5-2 parts of a coupling agent; 0.1-1 part of defoaming agent; the component B comprises the following components in parts by weight: 99-100 parts of curing agent forming matter; 0.1-1.5 parts of leveling agent, wherein the curing agent formation is formed by adding organic acid into amine curing agent and carrying out modification reaction under heating condition, and the mass ratio of the amine curing agent to the organic acid is 95:5-60: 40. According to the invention, through the addition of the modified curing agent, the problem of filament burning and color change of the hollow fiber membrane is realized, the gel time is shortened, the working efficiency of the membrane component end sealing is greatly improved, and the risk of component shelling is ensured by improving the bonding performance.
Description
Technical Field
The invention relates to the technical field of chemical industry and environmental protection, in particular to a water treatment epoxy pouring sealant for preventing a hollow fiber membrane from discoloring and a preparation method thereof.
Background
Under the conditions of water resource shortage, serious water quality pollution and annual increase of sewage discharge, available water resources are more and more severe, so that water treatment becomes a main method for solving the problem, and recycling becomes an important means for solving the serious shortage of water resources.
The water treatment refers to sewage treatment, and comprises a plurality of treatment approaches such as membrane water treatment, sludge treatment, seawater desalination, sponge city and the like, while the membrane water treatment is simple in process and low in energy consumption compared with the traditional water treatment, mainly achieves the separation and purification effects by utilizing physical technology (concentration difference, pressure difference or potential difference), only needs electric energy for driving, is stable in operation, does not change the quality of treated water greatly, and is high in effluent quality. Therefore, the membrane method water treatment technology is popularized in many fields including the field of medicine.
The membranes used may be classified into hollow fiber membranes, flat sheet membranes, tubular membranes and roll membranes according to the shape of the apparatus, and the materials of the membranes may be roughly classified into organic membranes and inorganic membranes.
The inorganic membrane is made of polymer materials, such as polyvinylidene fluoride (PVDF), vinylidene chloride (PVC), polyethyleneimine alkyl salt (PN), etc. Polyvinylidene fluoride (PVDF) is the most widely used ultrafiltration membrane material at present, has good corrosion resistance and strong anti-fouling capability, belongs to one of materials difficult to adhere, and the prepared ultrafiltration membrane has good filtration precision and mechanical property.
The pouring sealant for the end sealing of the water treatment component is a high molecular substance and can have complex reaction with a membrane material (PVDF) and epoxy resin, so that chemical phenomena occur, such as pink or even black color at the root of a membrane wire, which is known as wire burning discoloration in the industry, and the aesthetic property of the component and the performance of the component are directly influenced.
At present, the water treatment membrane component often generates wire burning and discoloring, the reason is relatively complex, and the following reasons are known:
first, and perhaps in relation to the performance of the potting adhesive, epoxy adhesives are relatively basic and PVDF discolors upon exposure to alkali. In the presence of basic groups, PVDF can undergo a dehydrogenation-F reaction to form conjugated double bonds, and the quantity of the basic groups needs to be controlled because the solution color development phenomenon is caused by the light absorption of the PVDF;
secondly, the preparation of the fiber membrane is possibly related to humidity, a wet method and a thermal method are adopted, the fiber membrane prepared by the wet method has certain humidity, water molecules have certain alkaline groups, and H-F removal reaction can be caused to form conjugate construction and color change, so that the moisture of the membrane silk is controlled well;
third, it is possible to correlate with temperature, and experimental studies have found that PVDF color is darker and darker as the temperature is increased, so the lower the exotherm peak of the potting compound, the better.
In conclusion, it is necessary to develop an epoxy potting adhesive for water treatment membrane module to prevent the hollow fiber membrane from discoloring.
Disclosure of Invention
In order to overcome the above defects of the prior art, the present invention aims to provide a water-treated epoxy potting adhesive for preventing the color of a hollow fiber membrane from changing.
On the basis of meeting the required basic curing performance, the oxygen pouring sealant not only solves the problem of hollow fiber membrane wire burning and color change, but also shortens the gel time and improves the adhesion after curing by modifying the curing agent.
In order to realize the purpose of the invention, the adopted technical scheme is as follows:
a water treatment epoxy pouring sealant for preventing hollow fiber membrane from discoloring, which comprises a component A and a component B,
wherein the component A comprises the following components in parts by weight:
50-98 parts of epoxy resin;
1-5 parts of a toughening agent;
5-20 parts of an active diluent;
0.5-2 parts of a coupling agent;
0.1-1 part of defoaming agent;
the component B comprises the following components in parts by weight:
99-100 parts of a curing agent forming substance;
0.1 to 1.5 portions of flatting agent,
wherein the curing agent formation is formed by adding organic acid into an amine curing agent and carrying out modification reaction under the heating condition, and the mass ratio of the amine curing agent to the organic acid is 95:5-60: 40;
in a preferred embodiment of the invention, the mass ratio of component a to component B is from 100:35 to 100: 45.
In a preferred embodiment of the present invention, the amine curing agent includes any one or more of an alicyclic amine curing agent, a polyamide curing agent, a polyether amine curing agent, or a modified amine curing agent.
In a preferred embodiment of the invention, the organic acid is salicylic acid.
In a preferred embodiment of the present invention, the heating condition is at a temperature of 70 to 80 ℃.
In a preferred embodiment of the present invention, the reactive diluent comprises any one or more of C12-C14 alkyl glycidyl ether, glycidyl neodecanoate, n-butylene glycol diglycidyl ether, neopentyl glycol diglycidyl ether, 1, 2-cyclohexanediol diglycidyl ether, polypropylene glycol diglycidyl ether, hexanediol diglycidyl ether, or glycerol triglycidyl ether.
In a preferred embodiment of the present invention, the epoxy resin is a bisphenol type epoxy resin, preferably any one or more of the bisphenol type epoxy resins E-51, E-44 or N170.
In a preferred embodiment of the present invention, the toughening agent comprises any one or more of a rubber-modified epoxy resin, a dimer acid-modified epoxy resin, or a polyurethane-modified epoxy resin.
In a preferred embodiment of the present invention, the coupling agent is a silane coupling agent, and the silane coupling agent is preferably any one or more of KH-550, KH-560 or KH-570.
In a preferred embodiment of the present invention, the defoamer is a silicone defoamer.
In a preferred embodiment of the present invention, the leveling agent is an organosilicon surface auxiliary agent, and the organosilicon surface auxiliary agent comprises any one or more of BYK-306, BYK-337 or BYK-341.
The preparation method of the water treatment epoxy pouring sealant for preventing the hollow fiber membrane from discoloring comprises the following steps:
the method comprises the following steps: uniformly mixing and stirring the epoxy resin, the toughening agent, the reactive diluent, the coupling agent and the defoaming agent to obtain the component A;
step two: adding the organic acid into an amine curing agent, carrying out modification reaction under heating conditions to obtain a curing agent formation, and then adding the leveling agent to obtain the component B;
step three: and uniformly mixing the component A and the component B in proportion to obtain the water treatment epoxy potting adhesive for preventing the hollow fiber membrane from discoloring.
The invention has the beneficial effects that:
according to the invention, through the addition of the modified curing agent, the problem of filament burning and color change of the hollow fiber membrane is realized, the gel time is shortened, the working efficiency of the membrane component end sealing is greatly improved, and the risk of component shelling is ensured by improving the bonding performance.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
The examples of the invention are as follows:
example 1
Mixing 91.5 parts by weight of E51, 5 parts by weight of C12-C14 Alkyl Glycidyl Ether (AGE), 2 parts by weight of EP4000,0.9 part by weight of KH-560 and 0.6 part by weight of defoaming agent, and stirring uniformly to obtain a component A;
stirring and mixing 14.15 parts by weight of modified cyclic amine JH-5933, 34.4 parts by weight of polyetheramine D230, 30 parts by weight of polyetheramine T403, 5.95 parts by weight of polyamide 651, 15 parts by weight of salicylic acid and 0.5 part by weight of BYK-337 at 75 ℃ for 5 hours, and cooling to room temperature to obtain a component B;
and uniformly mixing and stirring the component A and the component B according to the weight ratio of 100:40 to obtain the membrane assembly pouring sealant.
Example 2
Mixing and stirring 67.5 parts by weight of E51, 25 parts by weight of N170, 3 parts by weight of neopentyl glycol diglycidyl ether, 3 parts by weight of 1, 2-cyclohexanediol diglycidyl ether, 2 parts by weight of carboxyl-terminated nitrile rubber synthetic epoxy resin, 0.9 part by weight of KH-560 and 0.6 part by weight of a defoaming agent uniformly to obtain a component A;
stirring and mixing 17.15 parts by weight of modified cyclic amine JH-5933, 34.4 parts by weight of polyetheramine D230, 34 parts by weight of polyetheramine T403, 5.75 parts by weight of polyamide 651, 8 parts by weight of salicylic acid and 0.7 part by weight of BYK-306 at 75 ℃ for 5 hours, and cooling to room temperature to obtain a component B;
and uniformly mixing and stirring the component A and the component B according to the weight ratio of 100:45 to obtain the membrane component pouring sealant.
Example 3
Uniformly mixing and stirring 70.5 parts by weight of E44, 15 parts by weight of N170, 5 parts by weight of neopentyl glycol diglycidyl ether, 6 parts by weight of hexanediol diglycidyl ether, 2 parts by weight of polyurethane modified epoxy resin, 0.9 part by weight of KH-560 and 0.6 part by weight of a defoaming agent to obtain a component A;
stirring and mixing 14.15 parts by weight of modified cyclic amine JH-5933, 31.4 parts by weight of polyetheramine D230, 28 parts by weight of polyetheramine T403, 5.95 parts by weight of polyamide 651, 20 parts by weight of salicylic acid and 0.5 part by weight of BYK-341 at 75 ℃ for 5 hours, and cooling to room temperature to obtain a component B;
and uniformly mixing and stirring the component A and the component B according to the weight ratio of 100:35 to obtain the membrane component pouring sealant.
Comparative example 1
Mixing 91.5 parts by weight of E51, 5 parts by weight of C12-C14 Alkyl Glycidyl Ether (AGE), 2 parts by weight of EP4000,0.9 part by weight of KH-560 and 0.6 part by weight of defoaming agent, and stirring uniformly to obtain a component A;
stirring and mixing 29.15 parts by weight of modified cyclic amine JH-5933, 34.4 parts by weight of polyetheramine D230, 30 parts by weight of polyetheramine T403, 5.95 parts by weight of polyamide 651 and 0.5 part by weight of BYK-337 at 75 ℃ for 5 hours, and cooling to room temperature to obtain a component B;
and uniformly mixing and stirring the component A and the component B according to the weight ratio of 100:40 to obtain the membrane assembly pouring sealant.
Comparative example 2
Mixing and stirring 67.5 parts by weight of E51, 25 parts by weight of N170, 3 parts by weight of neopentyl glycol diglycidyl ether, 3 parts by weight of 1, 2-cyclohexanediol diglycidyl ether, 2 parts by weight of carboxyl-terminated nitrile rubber synthetic epoxy resin, 0.9 part by weight of KH-560 and 0.6 part by weight of a defoaming agent uniformly to obtain a component A;
stirring and mixing 25.15 parts by weight of modified cyclic amine JH-5933, 34.4 parts by weight of polyetheramine D230, 34 parts by weight of polyetheramine T403, 5.75 parts by weight of polyamide 651 and 0.7 part by weight of BYK-306 at 75 ℃ for 5 hours, and cooling to room temperature to obtain a component B;
and uniformly mixing and stirring the component A and the component B according to the weight ratio of 100:45 to obtain the membrane component pouring sealant.
Comparative example 3
Uniformly mixing and stirring 70.5 parts by weight of E44, 15 parts by weight of N170, 5 parts by weight of neopentyl glycol diglycidyl ether, 6 parts by weight of hexanediol diglycidyl ether, 2 parts by weight of polyurethane modified epoxy resin, 0.9 part by weight of KH-560 and 0.6 part by weight of a defoaming agent to obtain a component A;
stirring and mixing 34.15 parts by weight of modified cyclic amine JH-5933, 31.4 parts by weight of polyetheramine D230, 28 parts by weight of polyetheramine T403, 5.95 parts by weight of polyamide 651 and 0.5 part by weight of BYK-341 at 75 ℃ for 5 hours, and cooling to room temperature to obtain a component B;
and uniformly mixing and stirring the component A and the component B according to the weight ratio of 100:35 to obtain the membrane component pouring sealant.
Table 1 shows the physical and chemical properties of the epoxy adhesives
In the above table, a: viscosity test temperature: 23 +/-2 ℃; b: shear test standard: GB/T7124-2008.
As can be seen from table 1, the advantages of the present invention are:
1) according to the invention, the problem of color change of the hollow fiber membrane and the epoxy adhesive is solved by modifying the curing agent, so that the problem of color change of membrane filaments prepared by a wet method is solved, and the technical requirements of the pouring sealant for the water treatment membrane assembly at present are met.
2) The present invention solves the problem between epoxy gel time and exotherm peak. In general, the epoxy gel time is fast, the exothermic peak is higher, and the color of the film yarn is changed by burning the yarn. By modifying the curing agent, the gel time is shortened, and the exothermic peak is in a reasonable range.
3) The invention improves the bonding performance to PVDF and acrylonitrile-butadiene-styrene copolymer (ABS).
The technical features, means of realisation and the salient advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only of the principle of formation of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention, which fall within the scope of the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A water treatment epoxy pouring sealant for preventing the color change of a hollow fiber membrane, which comprises a component A and a component B,
the composition is characterized in that the component A comprises the following components in parts by weight:
50-98 parts of epoxy resin;
1-5 parts of a toughening agent;
5-20 parts of an active diluent;
0.5-2 parts of a coupling agent;
0.1-1 part of defoaming agent;
the component B comprises the following components in parts by weight:
99-100 parts of curing agent forming matter;
0.1 to 1.5 portions of flatting agent,
wherein the curing agent formation is formed by adding organic acid into an amine curing agent and carrying out modification reaction under the heating condition, and the mass ratio of the amine curing agent to the organic acid is 95:5-60: 40;
the mass ratio of the component A to the component B is 100:35-100: 45;
the amine curing agent is any one or more of alicyclic amine curing agent, polyamide curing agent, polyether amine curing agent or modified amine curing agent;
the temperature of the heating condition is 70-80 ℃;
the epoxy resin is any one or more of bisphenol epoxy resin E-51 and E-44;
the toughening agent is any one or more of rubber modified epoxy resin, dimer acid modified epoxy resin or polyurethane modified epoxy resin;
the reactive diluent is any one or more of C12-C14 alkyl glycidyl ether, neopentyl glycol diglycidyl ether, 1, 2-cyclohexanediol diglycidyl ether, hexanediol diglycidyl ether or glycerol triglycidyl ether;
the coupling agent is a silane coupling agent; the defoaming agent is an organic silicon defoaming agent;
the leveling agent is an organic silicon surface additive;
the organic acid is salicylic acid;
the water treatment epoxy pouring sealant;
the water treatment epoxy pouring sealant is prepared by the following method, and comprises the following steps:
the method comprises the following steps: uniformly mixing and stirring the epoxy resin, the toughening agent, the reactive diluent, the coupling agent and the defoaming agent to obtain the component A;
step two: adding the organic acid into an amine curing agent, carrying out modification reaction under heating conditions to obtain a curing agent formation, and then adding the leveling agent to obtain the component B;
step three: and uniformly mixing the component A and the component B in proportion to obtain the water treatment epoxy pouring sealant for preventing the hollow fiber membrane from discoloring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251208.6A CN111440578B (en) | 2020-04-01 | 2020-04-01 | Water-treatment epoxy pouring sealant for preventing hollow fiber membrane from discoloring and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010251208.6A CN111440578B (en) | 2020-04-01 | 2020-04-01 | Water-treatment epoxy pouring sealant for preventing hollow fiber membrane from discoloring and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111440578A CN111440578A (en) | 2020-07-24 |
| CN111440578B true CN111440578B (en) | 2022-08-12 |
Family
ID=71649533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010251208.6A Active CN111440578B (en) | 2020-04-01 | 2020-04-01 | Water-treatment epoxy pouring sealant for preventing hollow fiber membrane from discoloring and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111440578B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112226187B (en) * | 2020-09-18 | 2022-03-25 | 佛山市巴盛诺新材料科技有限公司 | Rock plate back mesh adhesive and preparation method and coating process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013151051A1 (en) * | 2012-04-02 | 2013-10-10 | 三菱レイヨン株式会社 | Hollow-fiber membrane module, process for producing hollow-fiber membrane module, and hollow-fiber membrane unit equipped with hollow-fiber membrane module |
| CN104371626A (en) * | 2014-11-03 | 2015-02-25 | 株洲日望精工有限公司 | Epoxy resin adhesive for potting PVDF hollow fiber membrane and preparation method of epoxy resin adhesive |
| CN109082254A (en) * | 2018-07-06 | 2018-12-25 | 浙江航通舟新材料科技有限公司 | A kind of preparation and its application of soft high resiliency membrane for water treatment component epoxy pouring sealant |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003315553A (en) * | 2002-02-22 | 2003-11-06 | Fuji Photo Film Co Ltd | Optical compensation sheet and polymerizable compound |
| CN106753131B (en) * | 2016-12-27 | 2020-10-23 | 上海康达化工新材料集团股份有限公司 | Epoxy-based pouring sealant for end sealing of PVDF ultrafiltration membrane component and preparation method thereof |
| CN107641489A (en) * | 2017-08-30 | 2018-01-30 | 山东奥卓化学有限公司 | Water process column-type film components epoxy resin embedding adhesive and preparation method thereof |
-
2020
- 2020-04-01 CN CN202010251208.6A patent/CN111440578B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013151051A1 (en) * | 2012-04-02 | 2013-10-10 | 三菱レイヨン株式会社 | Hollow-fiber membrane module, process for producing hollow-fiber membrane module, and hollow-fiber membrane unit equipped with hollow-fiber membrane module |
| CN104371626A (en) * | 2014-11-03 | 2015-02-25 | 株洲日望精工有限公司 | Epoxy resin adhesive for potting PVDF hollow fiber membrane and preparation method of epoxy resin adhesive |
| CN109082254A (en) * | 2018-07-06 | 2018-12-25 | 浙江航通舟新材料科技有限公司 | A kind of preparation and its application of soft high resiliency membrane for water treatment component epoxy pouring sealant |
Non-Patent Citations (1)
| Title |
|---|
| 胶粘剂在中空纤维超滤膜组件中的应用;刘涛等;《中国胶粘剂》;20170214(第1期);47-52 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111440578A (en) | 2020-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106753131B (en) | Epoxy-based pouring sealant for end sealing of PVDF ultrafiltration membrane component and preparation method thereof | |
| CN101555386B (en) | Epoxy organosilicone ultraviolet curing coating modified by (methyl) acrylic acid and preparation method thereof | |
| CN105363353A (en) | Charged type chlorine containing polymer nanofiltration membrane and preparation method thereof | |
| CN102850725B (en) | Epoxy potting material for microfiltration or ultrafiltration membrane filling and preparation method thereof | |
| CN105175687B (en) | The preparation method of Diamond Search high-flexibility aqueous epoxy resin curing agent | |
| CN111440578B (en) | Water-treatment epoxy pouring sealant for preventing hollow fiber membrane from discoloring and preparation method thereof | |
| CN102382617B (en) | Single-component high-strength transparent organic silicon potting adhesive and preparation method thereof | |
| CN109503812A (en) | A kind of epoxide resin material and its preparation method and application | |
| CN101829507B (en) | Method for preparing polypropylene separation membrane with durable hydrophilic property | |
| CN106565636B (en) | Fluorine-containing polyfunctional epoxy resin and preparation method and application thereof | |
| CN109836970B (en) | High-impermeability graphene modified epoxy coating liquid composition and preparation method thereof | |
| CN112538334B (en) | Organic silicon packaging material for photovoltaic module and preparation method thereof | |
| CN104371626A (en) | Epoxy resin adhesive for potting PVDF hollow fiber membrane and preparation method of epoxy resin adhesive | |
| CN116463091B (en) | Double-component weather-resistant epoxy adhesive and preparation method thereof | |
| CN110643019A (en) | Eugenol-based epoxy resin curing agent based on mercapto-alkene click reaction, preparation method and application | |
| CN105289329A (en) | Preparation method of PVDF/nanometer TiO2 blending modified flat sheet membrane module | |
| CN112251190B (en) | LED packaging adhesive composition | |
| CN111545136B (en) | Preparation method and application of self-suspended polymer aerogel with efficient photothermal conversion | |
| CN104353367B (en) | A kind of polyvinylidene fluoride hollow fiber composite membrane preparation method | |
| CN106215726A (en) | A kind of siliceous solvent resistant NF membrane and preparation method thereof | |
| CN110628371A (en) | Special pouring sealant for waterborne photovoltaic system | |
| CN112058096A (en) | Nanofiltration membrane and preparation method thereof | |
| CN109593509B (en) | Preparation method of boric acid modified organic silicon hot melt adhesive | |
| CN109096470B (en) | Bis-triazine epoxy resin curing agent and synthetic method thereof | |
| CN113461960B (en) | Preparation method of hyperbranched waterborne epoxy resin curing agent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 169 Leizhou Road, Fengxian District, Shanghai, 201419 Applicant after: Kangda new material (Group) Co.,Ltd. Address before: 169 Leizhou Road, Fengxian District, Shanghai, 201419 Applicant before: Shanghai Kangda Chemical New Material Group Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |