JPS62201939A - Composite membrane material - Google Patents
Composite membrane materialInfo
- Publication number
- JPS62201939A JPS62201939A JP27466786A JP27466786A JPS62201939A JP S62201939 A JPS62201939 A JP S62201939A JP 27466786 A JP27466786 A JP 27466786A JP 27466786 A JP27466786 A JP 27466786A JP S62201939 A JPS62201939 A JP S62201939A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- polyvinyl butyral
- concentration
- support
- filter
- 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.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims description 10
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 claims abstract description 12
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 239000002657 fibrous material Substances 0.000 claims abstract description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 abstract description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract description 7
- 239000000835 fiber Substances 0.000 abstract description 7
- 239000011521 glass Substances 0.000 abstract description 3
- 239000000919 ceramic Substances 0.000 abstract description 2
- 239000004745 nonwoven fabric Substances 0.000 abstract description 2
- 239000003960 organic solvent Substances 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 238000003892 spreading Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 238000004451 qualitative analysis Methods 0.000 abstract 1
- 238000004445 quantitative analysis Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Natural products CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 4
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002964 rayon Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241001669573 Galeorhinus galeus Species 0.000 description 1
- 108010093096 Immobilized Enzymes Proteins 0.000 description 1
- 241000270506 Tupinambis Species 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 210000004905 finger nail Anatomy 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- -1 methyl ethyl Chemical group 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、複合膜材料に関する。更に詳しくは、製膜性
１強度、操作性などの点においてすぐれ。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to composite membrane materials. More specifically, it has excellent film formability, strength, and operability.
分離膜などとして有効に使用し得る複合膜材料に関する
。This invention relates to composite membrane materials that can be effectively used as separation membranes.
不純物の除去、純水の製造などの目的で化学工業、食品
工業、電子工業などにおいて用いられている分離膜は、
従来例えば溶剤揮発法、水中ゲル化法などによって製造
されているが、その製膜時の操作性のために一定の強度
、即ち膜厚を必要としており、分離膜性能をよくするた
めに膜厚を薄くすると強度がなくなり、従って操作性の
点に欠けるようになる。また、その製膜時にはガラス板
などの担体を必要とするので、膜を担体から剥離させる
工程を必要とするなど、操作上でも煩雑である。Separation membranes are used in the chemical industry, food industry, electronics industry, etc. for purposes such as removing impurities and producing pure water.
Conventionally, membranes have been produced using solvent volatilization methods, underwater gelation methods, etc., but a certain level of strength, or membrane thickness, is required for operability during membrane formation. If it is made thinner, it loses strength and therefore becomes less operable. Furthermore, since a carrier such as a glass plate is required during film formation, the process is complicated in terms of operation, such as a step of peeling the film from the carrier.
また繊維材料はその全表面積が大きいため、例えば固定
化酵素や消臭剤の担体などとして用いられており、かか
る使用目的に供される場合には、更にその全表面積を大
きくすることが望まれる。Furthermore, since fiber materials have a large total surface area, they are used, for example, as carriers for immobilized enzymes and deodorants, and when used for such purposes, it is desirable to further increase the total surface area. .
全表面積を増大させる一つの手段として、繊維材料自体
を多孔質化することが考えられるが、繊維材料自体の多
孔質化は繊維材料自体の物理的強度の低下を招くので好
ましい方法とはいえない。One way to increase the total surface area is to make the fibrous material itself porous, but making the fibrous material itself porous leads to a decrease in the physical strength of the fibrous material itself, so it is not a preferable method. .
本発明者らは、かかる実情に鑑み、製膜性１強度、操作
性などの点においてすぐれた膜状物、好ましくは多孔質
化された膜状物を得るべく検討を重ねた結果、支持体上
にポリビニルブチラール膜を形成させ、複合膜材料とす
ることにより、かかる課題が効果的に解決されることを
見出した。In view of the above circumstances, the present inventors have made repeated studies to obtain a membrane-like material, preferably a porous membrane-like material, which is excellent in terms of film formability, strength, operability, etc. It has been found that this problem can be effectively solved by forming a polyvinyl butyral film thereon to obtain a composite film material.
従って、本発明は複合膜材料に係り、この複合膜材料は
、支持体上にポリビニルブチラール膜を形成せしめてな
る。Accordingly, the present invention relates to a composite membrane material, which comprises a polyvinyl butyral membrane formed on a support.
支持体としては、定量または定性用口紙、各種繊維また
はそれらの不織布などの繊維材料、ガラスフィルター、
セラミックスフィルターなどの口過材料などが用いられ
る。Supports include quantitative or qualitative paper, fiber materials such as various fibers or nonwoven fabrics thereof, glass filters,
Filtering materials such as ceramic filters are used.
これらの支持体上へのポリビニルブチラール膜の形成は
、ポリビニルブチラールを塩化メチレン、アセトン、メ
チルエチルヶ１−ン、エタノールなどの有機溶媒に約２
５重量％以下、好ましくは約１０重量％以下の濃度で溶
解させたドープ液を調製し、これを支持体上に浸漬、噴
霧、展開などの手段で適用して室温乃至約８０℃の雰囲
気中に放置することにより行われる。Formation of a polyvinyl butyral film on these supports is achieved by dipping polyvinyl butyral into an organic solvent such as methylene chloride, acetone, methyl ethyl alcohol, or ethanol for about 2 hours.
A dope solution dissolved at a concentration of 5% by weight or less, preferably about 10% by weight or less is prepared, and this is applied onto a support by means such as dipping, spraying, or spreading in an atmosphere at room temperature to about 80°C. This is done by leaving it for a while.
この際、相対湿度（ＲＨ）が約３０％以上の雰囲気中で
濃度約１０重量％以下のトープ液を乾燥させると、支持
体上には多数の微細孔を有する多孔質化された膜が形成
される。これは、ドープ液形成に用いられた溶剤の蒸発
時の潜熱により塗布面の温度が低下し、そこに空気中の
水分が結露し、その水分によりポリビニルブチラールが
ゲル化の際多孔質化されるものと考えられる。At this time, when the tope solution with a concentration of about 10% by weight or less is dried in an atmosphere with a relative humidity (RH) of about 30% or more, a porous film with many micropores is formed on the support. be done. This is because the latent heat during evaporation of the solvent used to form the dope solution lowers the temperature of the coated surface, and moisture in the air condenses there, causing polyvinyl butyral to become porous during gelation. considered to be a thing.
繊維材料などの支持体上にポリビニルブチラール膜、好
ましくは多孔質化された膜を形成させることにより、繊
維材料などの物理的強度を低下させることなく、表面層
の全表面積を増大させることができる。By forming a polyvinyl butyral membrane, preferably a porous membrane, on a support such as a textile material, the total surface area of the surface layer can be increased without reducing the physical strength of the textile material etc. .
具体的には、上記担体としての使用以外に、分離膜など
として用い得る複合膜材料を形成させることができ、そ
れは果汁の濃縮、コロイド・ラテックスなどの回収、微
生物の捕取などに有効に使用することができる。Specifically, in addition to the above-mentioned use as a carrier, it is possible to form a composite membrane material that can be used as a separation membrane, etc., and it can be effectively used for concentrating fruit juice, recovering colloid latex, etc., and capturing microorganisms. can do.
次に、実施例について本発明を説明する。 Next, the present invention will be explained with reference to examples.
実施例１
ポリビニルブチラール（和光純薬製品）を塩化メチレン
に溶解させ、濃度１重量％のドープ液を調製した。２７
℃、８３％ＲＨの条件下で、このドープ液を定性用口紙
（東洋濾紙製Ｎｏ、１）の片面上に展開し、１日間放置
した。Example 1 Polyvinyl butyral (Wako Pure Chemical Industries, Ltd.) was dissolved in methylene chloride to prepare a dope solution having a concentration of 1% by weight. 27
The dope solution was spread on one side of qualitative paper (No. 1, manufactured by Toyo Roshi) under conditions of 83% RH and 83% RH, and left for one day.
このようにして得られた分離膜をバッチ式の膜評価セル
（東洋濾紙製υＨＰ−４３）に取り付け、そこに窒素ガ
スで２１ｃｇ／ｃｄの圧力をかけ、透水率およびサツカ
ロミセス・セレビセエ（酵母）の分離率（酵母水溶液の
濃度は０．１ｇ／Ｑであり、濃度のチェックは分光光度
計を用い、波長６００ｎｍで測定）をそれぞれ測定した
。その結果、透水率については２．５ Ｑ ／ｄ−ａｔ
ｍ−ｈｒの値が、また酵母の分離率については１００％
の値が得られた。The separation membrane obtained in this way was attached to a batch-type membrane evaluation cell (υHP-43 manufactured by Toyo Roshi), and a pressure of 21 cg/cd was applied thereto with nitrogen gas to evaluate the water permeability and Saccharomyces cerevisiae (yeast). The separation rate (the concentration of the yeast aqueous solution was 0.1 g/Q, and the concentration was checked using a spectrophotometer at a wavelength of 600 nm) was measured. As a result, the water permeability was 2.5 Q/d-at
The value of m-hr is 100% for the yeast separation rate.
The value of was obtained.
実施例２〜４
ポリビニルブチラール（和光純薬製品）を塩化メチレン
、アセトンまたはメチルケトンに溶解させ、濃度３重量
％のドープ液を調製した。このドープ液中に、ポリアミ
ド繊維テグス（東し製品東しアミランテグス銀鱗１号、
ａｉ維径０．１６５＋ａａ＋）を浸漬し。Examples 2 to 4 Polyvinyl butyral (Wako Pure Chemical Industries, Ltd.) was dissolved in methylene chloride, acetone or methyl ketone to prepare a dope solution having a concentration of 3% by weight. In this dope solution, polyamide fiber Tegus (Ashi product Azuma Amilantegus Ginrin No. 1),
ai fiber diameter 0.165+aa+).
引き上げてから２７℃、６０％ＲＨの空気中に１０分間
放置した。After lifting it, it was left in air at 27° C. and 60% RH for 10 minutes.
このようにしてポリアミド繊維テグス表面に形成された
被膜をＳＵＮ写真で観察すると、いずれも被膜は０．１
μｍ前後の微細孔を多数有する多孔質膜が形成されてい
ることが確認された。形成された表面多孔質膜は、いず
れもポリアミド繊維テグスに良好に接着されており、折
り曲げや爪による擦りにより剥離することはなかった。When the film formed on the surface of the polyamide fiber TEG was observed using a SUN photograph, it was found that the film was 0.1
It was confirmed that a porous membrane having many micropores of around μm size was formed. All of the surface porous membranes formed were well adhered to the polyamide fiber fibers, and did not peel off when bent or scratched with fingernails.
実施例５
塩化メチレンを用いた実施例２において、ポリアミド繊
維テグスの代りに普通レーヨン（大和紡製品、繊度１．
５デニール）が用いられた。普通レーヨンの表面には、
無数の微細孔を有する多孔質膜が形成されていることが
確認された。Example 5 In Example 2 using methylene chloride, ordinary rayon (manufactured by Daiwabo Co., Ltd., fineness 1.
5 denier) was used. On the surface of ordinary rayon,
It was confirmed that a porous membrane having countless micropores was formed.
Claims (1)
なる複合膜材料。 ２、支持体が繊維材料である特許請求の範囲第１項記載
の複合膜材料。 ３、ポリビニルブチラール膜が多孔質膜である特許請求
の範囲第１項記載の複合膜材料。 ４、分離膜として使用される特許請求の範囲第１項記載
の複合膜材料。[Claims] 1. A composite membrane material comprising a polyvinyl butyral membrane formed on a support. 2. The composite membrane material according to claim 1, wherein the support is a fibrous material. 3. The composite membrane material according to claim 1, wherein the polyvinyl butyral membrane is a porous membrane. 4. The composite membrane material according to claim 1, which is used as a separation membrane.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60-257771 | 1985-11-19 | ||
| JP25777185 | 1985-11-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62201939A true JPS62201939A (en) | 1987-09-05 |
| JPH0553529B2 JPH0553529B2 (en) | 1993-08-10 |
Family
ID=17310870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27466786A Granted JPS62201939A (en) | 1985-11-19 | 1986-11-18 | Composite membrane material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62201939A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02227070A (en) * | 1989-02-28 | 1990-09-10 | Asahi Optical Co Ltd | Cell separating material and separator |
| EP0703353A3 (en) * | 1994-09-21 | 1996-04-03 | Isuzu Ceramics Research Institute Co., Ltd. | Diesel particulate filter apparatus |
| JP2006297370A (en) * | 2005-03-24 | 2006-11-02 | Sekisui Chem Co Ltd | Selective separation membrane and selective separation filter |
-
1986
- 1986-11-18 JP JP27466786A patent/JPS62201939A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02227070A (en) * | 1989-02-28 | 1990-09-10 | Asahi Optical Co Ltd | Cell separating material and separator |
| EP0703353A3 (en) * | 1994-09-21 | 1996-04-03 | Isuzu Ceramics Research Institute Co., Ltd. | Diesel particulate filter apparatus |
| US5611832A (en) * | 1994-09-21 | 1997-03-18 | Isuzu Ceramics Research Institute Co., Ltd. | Diesel particulate filter apparatus |
| JP2006297370A (en) * | 2005-03-24 | 2006-11-02 | Sekisui Chem Co Ltd | Selective separation membrane and selective separation filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0553529B2 (en) | 1993-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1322134C (en) | Ceramic filtration membrane and fabrication process thereof | |
| CA2290593A1 (en) | Non-porous gas permeable membrane | |
| US20050129935A1 (en) | Thin-film material and method for producing same | |
| JPH0771624B2 (en) | Membrane for isolation of virus from solution | |
| JP2001520111A (en) | Method for producing composite membrane having thin hydrophilic coating layer on hydrophobic support membrane | |
| JP2000300921A (en) | Air filter material and air filter unit using the same | |
| CN103446895A (en) | Curtain coating micro dip coating continuous production equipment and method of ultrathin membrane polymer complex film | |
| JPS62201939A (en) | Composite membrane material | |
| US20070193946A1 (en) | Membrane for the separation of material mixtures and method for production thereof | |
| KR920004477A (en) | Method for preparing microporous membrane and solvent-resistant microporous membrane prepared by the method | |
| JPH07275676A (en) | Multiple membrane,its preparation and method of application | |
| JPS6355973B2 (en) | ||
| SU576015A3 (en) | Membrane for inverse osmosis | |
| JP2828001B2 (en) | Asymmetric hollow fiber membrane for water / organic solvent separation or gas separation and method for producing the same | |
| CN113336184B (en) | MEMS infrared light source with closed membrane structure and preparation method thereof | |
| US6706088B2 (en) | Method for controlling membrane permeability by microwave and method for producing organic separation membrane | |
| JPS58159918A (en) | Manufacture of metallic foil with no thin backing material | |
| CN1380131A (en) | Preparation method of dry type polyacrylointrile ultrafiltration membrane | |
| JPH0243911A (en) | Gas filter | |
| WO2011118252A1 (en) | Process for production of silica membrane | |
| EP2391506A1 (en) | Structures comprising high aspect ratio molecular structures and methods of fabrication | |
| JP2001129393A (en) | Activated carbon adsorbent and method for preparing it | |
| CN1459327A (en) | Method for prepn. of dry type polyacrylonitrile ultrafiltration film | |
| JPS62282618A (en) | Production of composite membrane for separating gas | |
| RU2104763C1 (en) | Method of manufacturing asymmetric polymer membranes |