CN109529636A - A kind of polyvinylidene fluoride film and preparation method thereof - Google Patents
A kind of polyvinylidene fluoride film and preparation method thereof Download PDFInfo
- Publication number
- CN109529636A CN109529636A CN201811516469.5A CN201811516469A CN109529636A CN 109529636 A CN109529636 A CN 109529636A CN 201811516469 A CN201811516469 A CN 201811516469A CN 109529636 A CN109529636 A CN 109529636A
- Authority
- CN
- China
- Prior art keywords
- parts
- polyvinylidene fluoride
- kynoar
- fluoride film
- polyvinyl alcohol
- 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.)
- Pending
Links
Classifications
-
- 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
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/34—Polyvinylidene fluoride
-
- 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
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- 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
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/22—Thermal or heat-resistance properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/30—Chemical resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention discloses a kind of polyvinylidene fluoride film, and filter membrane is made of the component of following parts by weight: 20-25 parts of Kynoar, 10-13 parts of polyvinyl alcohol, 3.5-5 parts of silica, 1-2 parts of tributyl phosphate, 2-3 parts of propylene glycol；Using Kynoar as the raw material of film, the film of preparation has excellent corrosion-resistant, heat-resisting, cold-resistant, resistance to oxidation, weather resistance.
Description
Technical field
The present invention relates to a kind of production of film, specifically a kind of polyvinylidene fluoride films and preparation method thereof.
Background technique
Kynoar has good against weather and chemical stability, is irradiated by the ultraviolet light that wavelength is 200-400nm
1 year, performance was basically unchanged, and was not corroded at room temperature by the strong oxidizers such as acid, alkali and halogen.Since it is with above-mentioned many
Advantage, and can be cast and form the preferable film of pore performance, it is a kind of new and effective seperation film kind in special fibre seperation film, it can
It is widely used in chemical industry, environmental protection, food, beverage, biochemical pharmacy, health care and industrial purifying water process etc..
The membrane for water treatment being widely used at present is polyvinylidene fluoride blending film, and the substance of blending is mainly high molecular polymerization
Object or inorganic salts, this polyvinylidene fluoride blending film have good chemical stability, heat-resisting, acid and alkali-resistance, high mechanical strength, price low
The advantages of.
Summary of the invention
The purpose of the present invention is to provide a kind of polyvinylidene fluoride films, using Kynoar as the raw material of film, the film of preparation
With excellent corrosion-resistant, heat-resisting, cold-resistant, resistance to oxidation, weather resistance.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of polyvinylidene fluoride film, which is characterized in that the filter membrane is made of the component of following parts by weight: gather inclined fluorine
20-25 parts of ethylene, 10-13 parts of polyvinyl alcohol, 3.5-5 parts of silica, 1-2 parts of tributyl phosphate, 2-3 parts of propylene glycol.
Further, the filter membrane is made of the component of following parts by weight: 25 parts of Kynoar, polyvinyl alcohol 13
Part, 5 parts of silica, 2 parts of tributyl phosphate, 3 parts of propylene glycol.
Further, the filter membrane is made of the component of following parts by weight: 20 parts of Kynoar, polyvinyl alcohol 10
Part, 3.5 parts of silica, 1 part of tributyl phosphate, 2 parts of propylene glycol.
Further, the filter membrane is made of the component of following parts by weight: 23 parts of Kynoar, polyvinyl alcohol 12
Part, 4 parts of silica, 1.5 parts of tributyl phosphate, 2.5 parts of propylene glycol.
Further, the Kynoar degree of polymerization is 1500-1700.
Further, the alcoholysis degree of the polyvinyl alcohol is 95%.
A kind of preparation method of polyvinylidene fluoride film, which comprises the following steps:
The first step mixes Kynoar, propylene glycol, tributyl phosphate at a temperature of 200-250 DEG C, and stirs, and makes
Material thoroughly dissolves, and obtains mixed liquor.
In the environment of nitrogen protection, polyethylene is added in above-mentioned mixed liquor at a temperature of 200-250 DEG C in second step
Alcohol is sufficiently mixed, and after mixing, static state is placed 3-4 days.
The static mixed liquor placed after 3-4 days is added silica, carried out by third step at a temperature of 200-250 DEG C
It is sufficiently stirred.
4th step, after being sufficiently stirred, at a temperature of 25-30 DEG C, the cooling and shaping of progress, is obtained 1-1.5 days cooling time
Required polyvinylidene difluoride film.
Beneficial effects of the present invention: providing a kind of polyvinylidene fluoride (PVDF) ultrafiltration membrane, using Kynoar as the raw material of film, preparation
Film have excellent corrosion-resistant, heat-resisting, cold-resistant, resistance to oxidation, weather resistance.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it is to be understood that, term " aperture ", "upper", "lower", " thickness ", "top", " in ",
Indicating positions or the positional relationship such as " length ", "inner", " surrounding ", are merely for convenience of description of the present invention and simplification of the description, without
It is that the component of indication or suggestion meaning or element must have a particular orientation, is constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
Embodiment one:
A kind of polyvinylidene fluoride film, the filter membrane are made of the component of following parts by weight: degree of polymerization 1500-1700
25 parts of Kynoar, alcoholysis degree be 95% 13 parts of polyvinyl alcohol, 5 parts of silica, 2 parts of tributyl phosphate, propylene glycol 3
Part.
The preparation method of above-mentioned polyvinylidene fluoride film, comprising the following steps:
The first step mixes Kynoar, propylene glycol, tributyl phosphate at a temperature of 200-250 DEG C, and stirs, and makes
Material thoroughly dissolves, and obtains mixed liquor；
In the environment of nitrogen protection, polyethylene is added in above-mentioned mixed liquor at a temperature of 200-250 DEG C in second step
Alcohol is sufficiently mixed, and after mixing, static state is placed 3-4 days；
The static mixed liquor placed after 3-4 days is added silica, carried out by third step at a temperature of 200-250 DEG C
It is sufficiently stirred；
4th step, after being sufficiently stirred, at a temperature of 25-30 DEG C, the cooling and shaping of progress, is obtained 1-1.5 days cooling time
Required polyvinylidene difluoride film.
Embodiment two:
A kind of polyvinylidene fluoride film, the filter membrane are made of the component of following parts by weight: the poly- inclined fluorine of 1500-1700
20 parts of ethylene, 10 parts of the polyvinyl alcohol that alcoholysis degree is 95%, 3.5 parts of silica, 1 part of tributyl phosphate, 2 parts of propylene glycol.
The preparation method of above-mentioned polyvinylidene fluoride film, comprising the following steps:
The first step mixes Kynoar, propylene glycol, tributyl phosphate at a temperature of 200-250 DEG C, and stirs, and makes
Material thoroughly dissolves, and obtains mixed liquor；
In the environment of nitrogen protection, polyethylene is added in above-mentioned mixed liquor at a temperature of 200-250 DEG C in second step
Alcohol is sufficiently mixed, and after mixing, static state is placed 3-4 days；
The static mixed liquor placed after 3-4 days is added silica, carried out by third step at a temperature of 200-250 DEG C
It is sufficiently stirred；
4th step, after being sufficiently stirred, at a temperature of 25-30 DEG C, the cooling and shaping of progress, is obtained 1-1.5 days cooling time
Required polyvinylidene difluoride film.
Embodiment three:
A kind of polyvinylidene fluoride film, the filter membrane are made of the component of following parts by weight: the poly- inclined fluorine of 1500-1700
23 parts of ethylene, 12 parts of the polyvinyl alcohol that alcoholysis degree is 95%, 4 parts of silica, 1.5 parts of tributyl phosphate, 2.5 parts of propylene glycol.
The preparation method of above-mentioned polyvinylidene fluoride film, comprising the following steps:
The first step mixes Kynoar, propylene glycol, tributyl phosphate at a temperature of 200-250 DEG C, and stirs, and makes
Material thoroughly dissolves, and obtains mixed liquor；
In the environment of nitrogen protection, polyethylene is added in above-mentioned mixed liquor at a temperature of 200-250 DEG C in second step
Alcohol is sufficiently mixed, and after mixing, static state is placed 3-4 days；
The static mixed liquor placed after 3-4 days is added silica, carried out by third step at a temperature of 200-250 DEG C
It is sufficiently stirred；
4th step, after being sufficiently stirred, at a temperature of 25-30 DEG C, the cooling and shaping of progress, is obtained 1-1.5 days cooling time
Required polyvinylidene difluoride film.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (7)
1. a kind of polyvinylidene fluoride film, which is characterized in that the filter membrane is made of the component of following parts by weight: polyvinylidene fluoride
20-25 parts of alkene, 10-13 parts of polyvinyl alcohol, 3.5-5 parts of silica, 1-2 parts of tributyl phosphate, 2-3 parts of propylene glycol.
2. a kind of polyvinylidene fluoride film according to claim 1, which is characterized in that the filter membrane is by following parts by weight
Component be made: 25 parts of Kynoar, 13 parts of polyvinyl alcohol, 5 parts of silica, 2 parts of tributyl phosphate, 3 parts of propylene glycol.
3. a kind of polyvinylidene fluoride film according to claim 1, which is characterized in that the filter membrane is by following parts by weight
Component be made: 20 parts of Kynoar, 10 parts of polyvinyl alcohol, 3.5 parts of silica, 1 part of tributyl phosphate, 2 parts of propylene glycol.
4. a kind of polyvinylidene fluoride film according to claim 1, which is characterized in that the filter membrane is by following parts by weight
Component be made: 23 parts of Kynoar, 12 parts of polyvinyl alcohol, 4 parts of silica, 1.5 parts of tributyl phosphate, propylene glycol 2.5
Part.
5. a kind of polyvinylidene fluoride film according to claim 1, which is characterized in that the Kynoar degree of polymerization is
1500-1700。
6. a kind of polyvinylidene fluoride film according to claim 1, which is characterized in that the alcoholysis degree of the polyvinyl alcohol is
95%.
7. a kind of preparation method of polyvinylidene fluoride film, which comprises the following steps:
The first step mixes Kynoar, propylene glycol, tributyl phosphate at a temperature of 200-250 DEG C, and stirs, and makes material
Thoroughly dissolution, obtains mixed liquor；
In the environment of nitrogen protection, polyvinyl alcohol is added in above-mentioned mixed liquor at a temperature of 200-250 DEG C in second step, into
Row is sufficiently mixed, and after mixing, static state is placed 3-4 days；
The static mixed liquor placed after 3-4 days is added silica, carried out abundant by third step at a temperature of 200-250 DEG C
Stirring；
4th step, after being sufficiently stirred, at a temperature of 25-30 DEG C, the cooling and shaping of progress, 1-1.5 days cooling time, needed for obtaining
Polyvinylidene difluoride film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811516469.5A CN109529636A (en) | 2018-12-12 | 2018-12-12 | A kind of polyvinylidene fluoride film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811516469.5A CN109529636A (en) | 2018-12-12 | 2018-12-12 | A kind of polyvinylidene fluoride film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109529636A true CN109529636A (en) | 2019-03-29 |
Family
ID=65854661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811516469.5A Pending CN109529636A (en) | 2018-12-12 | 2018-12-12 | A kind of polyvinylidene fluoride film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109529636A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362057A (en) * | 2008-01-30 | 2009-02-11 | 清华大学 | Method for preparing polyvinylidene fluoride porous membrane |
| CN101569837A (en) * | 2009-05-26 | 2009-11-04 | 清华大学 | Polyvinylidene fluoride microporous film preparation method |
| CN101745318A (en) * | 2008-12-16 | 2010-06-23 | 吕晓龙 | Method for preparing hollow-fibre membrane |
| JP2011168741A (en) * | 2010-02-22 | 2011-09-01 | Nok Corp | Method for producing polyvinylidene fluoride-based porous film |
| CN102764597A (en) * | 2012-08-01 | 2012-11-07 | 清华大学 | Method for preparing polyvinylidene fluoride ultra-filtration membranes |
| CN104667763A (en) * | 2013-11-28 | 2015-06-03 | 上海一鸣过滤技术有限公司 | Supported hydrophilic polyvinylidene fluoride microporous membrane and preparation method thereof |
| CN107626210A (en) * | 2017-09-29 | 2018-01-26 | 华南理工大学 | A kind of high molecular polymer microporous barrier and preparation method thereof |
| CN108570155A (en) * | 2017-03-10 | 2018-09-25 | 财团法人工业技术研究院 | Polyvinylidene fluoride film, method for forming the same, and method for purifying brine |
| CN108619916A (en) * | 2017-03-23 | 2018-10-09 | 中国石油化工股份有限公司 | A kind of preparation method of porous diffusion barrier |
-
2018
- 2018-12-12 CN CN201811516469.5A patent/CN109529636A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362057A (en) * | 2008-01-30 | 2009-02-11 | 清华大学 | Method for preparing polyvinylidene fluoride porous membrane |
| CN101745318A (en) * | 2008-12-16 | 2010-06-23 | 吕晓龙 | Method for preparing hollow-fibre membrane |
| CN101569837A (en) * | 2009-05-26 | 2009-11-04 | 清华大学 | Polyvinylidene fluoride microporous film preparation method |
| JP2011168741A (en) * | 2010-02-22 | 2011-09-01 | Nok Corp | Method for producing polyvinylidene fluoride-based porous film |
| CN102764597A (en) * | 2012-08-01 | 2012-11-07 | 清华大学 | Method for preparing polyvinylidene fluoride ultra-filtration membranes |
| CN104667763A (en) * | 2013-11-28 | 2015-06-03 | 上海一鸣过滤技术有限公司 | Supported hydrophilic polyvinylidene fluoride microporous membrane and preparation method thereof |
| CN108570155A (en) * | 2017-03-10 | 2018-09-25 | 财团法人工业技术研究院 | Polyvinylidene fluoride film, method for forming the same, and method for purifying brine |
| CN108619916A (en) * | 2017-03-23 | 2018-10-09 | 中国石油化工股份有限公司 | A kind of preparation method of porous diffusion barrier |
| CN107626210A (en) * | 2017-09-29 | 2018-01-26 | 华南理工大学 | A kind of high molecular polymer microporous barrier and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 胡桢等: "《新型高分析合成与制备工艺》", 31 May 2014, 哈尔滨工业大学出版社 * |
| 董秉直: "《饮用水膜法处理新技术》", 30 September 2015, 同济大学出版社 * |
| 蔺爱国等: "《新型功能膜技术及其应用》", 30 November 2013, 中国石油大学出版社 * |
| 郭艳玲等: "《有机及物理化学实验》", 29 February 2008, 郭艳玲等 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Marshall et al. | On the solubility and stability of polyvinylidene fluoride | |
| Elma et al. | Microporous silica based membranes for desalination | |
| Simone et al. | Preparation and characterization of polymeric-hybrid PES/TiO2 hollow fiber membranes for potential applications in water treatment | |
| Weng et al. | Preparation and characterization of antibacterial cellulose/chitosan nanofiltration membranes | |
| Casado-Coterillo et al. | Synthesis and characterisation of ETS-10/acetate-based ionic liquid/chitosan mixed matrix membranes for CO2/N2 permeation | |
| Elma et al. | Long-term performance and stability of interlayer-free mesoporous silica membranes for wetland saline water pervaporation | |
| CN102716677B (en) | A kind of polyvinylidene fluoride (PVDF) ultrafiltration membrane and preparation method thereof | |
| JP6088932B2 (en) | Separation membrane comprising inorganic / organic hybrid compound and method for producing the same | |
| Khan et al. | Synthesis of porous BPPO-based anion exchange membranes for acid recovery via diffusion dialysis | |
| Kuzminova et al. | Novel pervaporation membranes based on biopolymer sodium alginate modified by FeBTC for isopropanol dehydration | |
| Dmitrenko et al. | Novel membranes based on hydroxyethyl cellulose/sodium alginate for pervaporation dehydration of isopropanol | |
| Yan et al. | Hyperbranch-crosslinked S-SEBS block copolymer membranes for desalination by pervaporation | |
| Muñoz-Bonilla et al. | Antimicrobial porous surfaces prepared by breath figures approach | |
| CN109529636A (en) | A kind of polyvinylidene fluoride film and preparation method thereof | |
| Febriasari et al. | Polysulfone–polyvinyl pyrrolidone blend polymer composite membranes for batik industrial wastewater treatment | |
| Kujawski et al. | Preparation and characterization of polyphenylsulfone (PPSU) membranes for biogas upgrading | |
| Grünig et al. | Hydrophilic dual layer hollow fiber membranes for ultrafiltration | |
| Morgado et al. | Durability of thermal renders with lightweight and thermal insulating aggregates: Regranulated expanded cork, silica aerogel and expanded polystyrene | |
| Lakshmi et al. | Emerging trends in porogens toward material fabrication: Recent progresses and challenges | |
| Zhou et al. | Separation of Hydrochloric Acid and Oxalic Acid from Rare Earth Oxalic Acid Precipitation Mother Liquor by Electrodialysis | |
| Longo et al. | Thin film composite membranes based on the polymer of intrinsic microporosity PIM-EA (Me2)-TB blended with Matrimid® 5218 | |
| Jamil et al. | Low-cost high performance polyamide thin film composite (cellulose triacetate/graphene oxide) membranes for forward osmosis desalination from palm fronds | |
| Carta et al. | The difference in performance and compatibility between crystalline and amorphous fillers in mixed matrix membranes for gas separation (MMMs) | |
| Choi et al. | Isoporous polyvinylidene fluoride membranes with selective skin layers via a thermal-vapor assisted phase separation method for industrial purification applications | |
| Dai et al. | The design, synthesis, and characterization of Epoxy Vitrimers with enhanced glass transition temperatures |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190329 |
|
| RJ01 | Rejection of invention patent application after publication |