JPS63236516A - Gas separating membrane - Google Patents
Gas separating membraneInfo
- Publication number
- JPS63236516A JPS63236516A JP7283687A JP7283687A JPS63236516A JP S63236516 A JPS63236516 A JP S63236516A JP 7283687 A JP7283687 A JP 7283687A JP 7283687 A JP7283687 A JP 7283687A JP S63236516 A JPS63236516 A JP S63236516A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- gas separating
- separating membrane
- gas separation
- sheet
- 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 34
- -1 dimethyl siloxane Chemical class 0.000 claims abstract description 21
- 229920000642 polymer Polymers 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 239000002861 polymer material Substances 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 239000003960 organic solvent Substances 0.000 abstract description 6
- 239000004743 Polypropylene Substances 0.000 abstract description 4
- 239000003921 oil Substances 0.000 abstract description 4
- 229920001155 polypropylene Polymers 0.000 abstract description 4
- GCSJLQSCSDMKTP-UHFFFAOYSA-N ethenyl(trimethyl)silane Chemical compound C[Si](C)(C)C=C GCSJLQSCSDMKTP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000002904 solvent Substances 0.000 abstract description 2
- DCGLONGLPGISNX-UHFFFAOYSA-N trimethyl(prop-1-ynyl)silane Chemical compound CC#C[Si](C)(C)C DCGLONGLPGISNX-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 239000000463 material Substances 0.000 description 14
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 12
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000035699 permeability Effects 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- 239000004205 dimethyl polysiloxane Substances 0.000 description 5
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 5
- 239000011148 porous material Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- PAOHAQSLJSMLAT-UHFFFAOYSA-N 1-butylperoxybutane Chemical compound CCCCOOCCCC PAOHAQSLJSMLAT-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229920013683 Celanese Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002717 polyvinylpyridine Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、気体分離膜に関する。更に詳しくは、酸素富
化膜などとして有効に使用される気体分離膜に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a gas separation membrane. More specifically, the present invention relates to a gas separation membrane that is effectively used as an oxygen enrichment membrane.
従来酸素富化膜には、ポリシロキサン、ポリカーボネー
ト、ポリビニルピリジン、ポリエステルなどの高分子材
料が素材として用いられている。Conventionally, oxygen enrichment membranes have been made of polymeric materials such as polysiloxane, polycarbonate, polyvinylpyridine, and polyester.
ポリシロキサン系材料の場合には、酸素と窒素との分離
率が約２程度と小さいが、酸素透過係数が大きいため、
早くから実用化が進められている。In the case of polysiloxane-based materials, the separation rate between oxygen and nitrogen is small at about 2, but the oxygen permeability coefficient is large, so
It has been put into practical use from an early stage.
ところで、実用に際しては、十分な酸素透過量を得るた
めに薄膜にする必要があるが、薄膜にすると今度は機械
的強度が小さくなるため、その性能が十分に発揮されな
いという矛盾がみられるようになる。例えば、分離率が
４．５と高く、酸素透過係数も４．５ Ｘ １０−’
Ｑｌ？ （ＳＴＰ）ｃｍ／ ｃｎｆ ・秒・ｃｍＨｇと
かなり良い値を示すポリトリメチルビニルシランも、そ
れ単体では膜強度の大きい薄膜を得ることが国是である
。By the way, in practical use, it is necessary to make the film thin in order to obtain a sufficient amount of oxygen permeation, but there is a contradiction that if the film is made thin, the mechanical strength will be reduced, and its performance will not be fully demonstrated. Become. For example, the separation rate is as high as 4.5, and the oxygen permeability coefficient is also 4.5 x 10-'
Ql? Polytrimethylvinylsilane, which exhibits a fairly good value of (STP) cm/cnf·sec·cmHg, is also a national policy to obtain a thin film with high film strength when used alone.
また、シリコン系高分子物質は、一般に有機溶剤やガソ
リンなどに膨潤し易い性質を有しているため、このよう
な雰囲気中にさらされる可能性のある用途、例えば省燃
費、排気ガスの減少を狙った自動車エンジンへの適用を
困難としている。In addition, silicon-based polymer materials generally have the property of being easily swollen by organic solvents and gasoline, so they are suitable for applications where they may be exposed to such atmospheres, such as fuel efficiency and reduction of exhaust gas. This makes it difficult to apply it to the target automobile engine.
かかる現状に鑑み、シリコン系高分子物質を用いた気体
分離膜であって、−強度が強くしかも耐油・耐薬品性に
すぐれたものを求めて本発明者らは検討を重ねた結果、
シリコン系高分子物質を延伸多孔質高分子支持体に担持
せしめることにより。In view of the current situation, the present inventors have conducted repeated studies in search of a gas separation membrane using a silicone-based polymer substance that is strong and has excellent oil and chemical resistance.
By supporting a silicon-based polymer substance on a stretched porous polymer support.
かかる課題が効果的に解決されることを見出した。It has been found that this problem can be effectively solved.
従って、本発明は気体分離膜に係り、この気体分離膜は
、延伸多孔質高分子支持体にシリコン系高分子物質を担
持せしめてなる。Accordingly, the present invention relates to a gas separation membrane, which comprises a stretched porous polymer support supporting a silicon-based polymer material.
延伸多孔質支持体を形成する高分子物質としては、例え
ばポリテトラフルオロエチレンあるいはポリエチレン、
ポリプロピレンなどのポリオレフィンなどが用いられ、
これらの高分子物質から形成された延伸多孔質支持体は
、一般に約１０〜数１００μｍの厚さのものとして用い
られる。Examples of the polymer material forming the stretched porous support include polytetrafluoroethylene or polyethylene;
Polyolefins such as polypropylene are used,
Stretched porous supports formed from these polymeric materials are generally used with a thickness of about 10 to several 100 μm.
また、シリコン系高分子物質としては、例えばジメチル
シロキサン、トリメチルビニルシラン、トリメチルシリ
ルプロピンなどの重合体が用いられる。Further, as the silicon-based polymer substance, for example, polymers such as dimethylsiloxane, trimethylvinylsilane, and trimethylsilylpropyne are used.
延伸多孔質高分子支持体へのシリコン系高分子物質の担
持は、一般に前者の約５〜８０重量部に対し後者が約９
５〜２０重量部の割合で、例えば次のような方法によっ
て行なうことができる。The silicone-based polymer material is generally supported on the stretched porous polymer support in an amount of about 5 to 80 parts by weight for the former and about 9 parts by weight for the latter.
It can be carried out at a ratio of 5 to 20 parts by weight, for example, by the following method.
（１）予め延伸多孔質化させた高分子支持体へ。(1) To a polymer support that has been made porous by stretching in advance.
シリコン系高分子物質をトルエン、ジメチルホルムアミ
ド、メチルエチルケトン、塩化メチレン。Silicon-based polymer substances include toluene, dimethylformamide, methyl ethyl ketone, and methylene chloride.
トリクロルエチレン、ｎ−ヘキサン、キシレンなどに溶
解させた有機溶剤溶液として含浸させ、有機溶剤を除去
することによって担持させる方法（２）支持体形成用高
分子物質粉末にシリコン系高分子物質または上記の如き
その有機溶剤溶液を密封条件下で混合し、押出し、引抜
き、ロール圧延、焼成などの方法を単独または組合せて
適用し、適当な段階で用いられた有機溶剤を除去するこ
とにより・延伸多孔質化すると共にそこにシリコン系高
分子物質を担持させる方法
支持体として延伸多孔質体を用いるのは、この多孔質体
が他の方法によって得られた多孔質体よりも１機械的強
度の点においてすぐれているためである。一般には、多
孔質化することにより、その材料の強度が低下するのが
普通であるが、延伸法による多孔質化では強度低下がみ
られず、また柔軟性をも有するため、モジュール化する
際その形状に応じて組み込む場合に有効である。A method of impregnating it as an organic solvent solution dissolved in trichloroethylene, n-hexane, xylene, etc., and then supporting it by removing the organic solvent. By mixing the organic solvent solution under sealed conditions, applying methods such as extrusion, drawing, rolling, calcination, etc. alone or in combination, and removing the organic solvent used at an appropriate stage, a stretched porous structure is formed. The reason why a stretched porous material is used as a support is that this porous material has a higher mechanical strength than porous materials obtained by other methods. This is because it is excellent. Generally, when the material is made porous, the strength of the material decreases, but when the material is made porous by stretching, there is no decrease in strength, and it also has flexibility, so it is useful for making it into modules. This is effective when incorporating it according to its shape.
延伸多孔質体を用いることの他の利点としては。Other advantages of using a stretched porous body include:
加工方法によって高空隙率のものが得られることがｔげ
られる。即ち、最高で９８％の高空隙率のもの迄得られ
るため、膜の実質的透過面積が大きくとれ、ｒＩＸ材の
物性および気体分離性能によって空隙を調整することで
、適切な膜を得ることができる。It is possible to obtain a material with a high porosity depending on the processing method. In other words, since a high porosity of up to 98% can be obtained, the effective permeation area of the membrane can be large, and by adjusting the porosity depending on the physical properties and gas separation performance of the rIX material, an appropriate membrane can be obtained. can.
本発明に係る複合化された気体分離膜は、従来の多孔質
体の複合化方法である単なるコーティング方法あるいは
積層方法とは異なり、多孔質体の空隙部分に膜材を一体
化させる構造をとっているため、従来の複合化多孔質体
にみられた膜材の剥離あるいは剥離防止用接着処理によ
る膜機能の低下などがみられない。The composite gas separation membrane according to the present invention has a structure in which the membrane material is integrated into the voids of the porous body, unlike the conventional method of composite porous bodies, which is a simple coating method or a lamination method. Therefore, there is no deterioration in membrane function due to peeling of the membrane material or adhesive treatment to prevent peeling, which was observed in conventional composite porous materials.
また、支持体の多孔質化構造は、そこに担持させた膜材
の架橋的な役割をも果たしているため、膜材の流出防止
、形状保持などにも有効である。In addition, the porous structure of the support also plays a role of crosslinking the membrane material supported thereon, and is therefore effective in preventing the membrane material from flowing out and maintaining its shape.
このようにして１本発明に係る気体分離膜は、シリコン
系高分子物質が本来有する膜機能を実質的に損なうこと
なく、膜強度の著しい向上および耐油・耐溶剤性の改善
を達成せしめており、従って用途上の拡大が図れるなど
それによって得られる効果は大なるものがある。In this way, the gas separation membrane according to the present invention achieves a significant improvement in membrane strength and oil and solvent resistance without substantially impairing the membrane functions inherent to silicone-based polymer substances. Therefore, there are great effects that can be obtained, such as the ability to expand the range of applications.
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
予め延伸多孔質化した厚さ２５μｍ、重さ５ｇのポリプ
ロピレンシート（セラニーズ社製品シェラガード）を、
ポリトリメチルシリルプロピンの１０重ジメチルホルム
アミド溶液５００ｇ中に１２時間浸漬した後、４８時間
自然乾燥させ、更に減圧乾燥してジメチルホルムアミド
を除去した。Example 1 A polypropylene sheet (Shelagard, a Celanese product) with a thickness of 25 μm and a weight of 5 g that had been stretched and made porous in advance was
The sample was immersed in 500 g of a 10-fold dimethylformamide solution of polytrimethylsilylpropyne for 12 hours, air-dried for 48 hours, and further dried under reduced pressure to remove dimethylformamide.
このポリトリメチルシリルプロピン含浸ポリプロピレン
シート（シート強度４１５ｋｇ／ｃｏ？）について、圧
力法による気体分離膜としての評価を行ない。This polytrimethylsilylpropyne-impregnated polypropylene sheet (sheet strength: 415 kg/co?) was evaluated as a gas separation membrane by a pressure method.
酸素と窒素とをそれぞれ単独で通過させたときの透過速
度から換算される透過係数を求め、その比から分離率を
算出した。The permeability coefficient was calculated from the permeation rate when oxygen and nitrogen were passed through each separately, and the separation rate was calculated from the ratio.
酸素の透過係数： ３，７Ｘ１０−”Ｃｍ’（ＳＴＰ）
ｃｍ／ｃｊ・秒・ｃｍＨｇ窒素との分離率：１．７
比較例１
ポリトリメチルシリルプロピンの１０重量％ジメチルホ
ルムアミド溶液を平滑なガラス板に流延し、４８時間自
然乾燥して得られた厚さ５０μｍのポリトリメチルシリ
ルプロピンシート（シート強度３６ｋｇ／ｄ）について
、実施例１と同様の膜性能の評価を行ない、次のような
結果を得た。Oxygen permeability coefficient: 3,7X10-"Cm' (STP)
cm/cj・sec・cmHg Separation rate from nitrogen: 1.7 Comparative Example 1 A 10% by weight dimethylformamide solution of polytrimethylsilylpropyne was cast onto a smooth glass plate, and the thickness obtained by air drying for 48 hours. The membrane performance of a polytrimethylsilylpropyne sheet (sheet strength 36 kg/d) having a diameter of 50 μm was evaluated in the same manner as in Example 1, and the following results were obtained.
酸素の透過係数ニア、７Ｘ１０−１ｃｍ’ （ＳＴＰ）
ｃｍ／Ｃｉ６秒・ｃｍＨｇ窒素との分離率：１．６
実施例２
ポリテトラフルオロエチレン粉末（三井・デュポン フ
ロロケミカル製品テフロン６−Ｊ） １００ｇに、第３
ブチルパーオキサイド０．１５ｇを加えたポリジメチル
シロキサン（東しシリコン製品５）１４１０．シリコン
ガム）の１０重景％塩化メチレン溶液３００ｇを密封容
器中で混合し、この混合物を全重量が１６０ｇになる迄
自然乾燥させた後、２０ｋｇ／ｃｎ？の圧力で押し固め
た。Oxygen permeability coefficient near, 7X10-1cm' (STP)
cm/Ci 6 seconds/cmHg Separation rate from nitrogen: 1.6 Example 2 To 100 g of polytetrafluoroethylene powder (Mitsui DuPont fluorochemical product Teflon 6-J), the third
Polydimethylsiloxane containing 0.15 g of butyl peroxide (Toshi Silicone Product 5) 1410. 300 g of a 10% methylene chloride solution of silicone gum) was mixed in a sealed container, and the mixture was air-dried until the total weight became 160 g, and then 20 kg/cn? It was compacted with pressure.
この押し固めたものを、１５０ｋｇ／ａ＋ｆの圧力下で
厚さＩＩＩＩＱＩのシート状物に押し出し、押出方向お
よびそれと直角方向にそれぞれ５０％宛２軸延伸してか
ら４０°Ｃで１２時間減圧乾燥し、塩化メチレンを完全
に除去した。これを、１８０℃、６０ｋｇ／ｃｌ、１０
分間の条件下でプレス加硫し、金型に入れたまま、昇温
速度４℃／分で３４０℃迄昇温し、そのまま１０分間加
熱した後急冷した。This compacted material was extruded into a sheet with a thickness of IIIQI under a pressure of 150 kg/a+f, biaxially stretched by 50% in the extrusion direction and in a direction perpendicular to it, and then dried under reduced pressure at 40°C for 12 hours. , methylene chloride was completely removed. This was heated at 180℃, 60kg/cl, 10
Press vulcanization was carried out under conditions of 10 minutes, and the temperature was raised to 340°C at a temperature increase rate of 4°C/minute while in the mold, and after heating for 10 minutes, it was rapidly cooled.
得られたポリジメチルシロキサン担持ポリテトラフルオ
ロエチレンシート（シート強度３００ｋｇ／ａｌ）につ
いて、実施例１と同様の膜性能評価を行ない、次のよう
な結果を得た。The obtained polydimethylsiloxane-supported polytetrafluoroethylene sheet (sheet strength: 300 kg/al) was evaluated for membrane performance in the same manner as in Example 1, and the following results were obtained.
酸素の透過係数： １．５Ｘ１０−’ｃｍ３（ＳＴＰ）
ｃｍ／Ｊ・秒・ＣｌｌｌＨｇ窒素との分離率：２．５
また、この含浸シートをガソリン中に２４時間浸漬した
ときの体積変化率を測定すると、＋５％の値が得られた
。Oxygen permeability coefficient: 1.5X10-'cm3 (STP)
cm/J·sec·ClllHg Separation rate from nitrogen: 2.5 Further, when the volume change rate when this impregnated sheet was immersed in gasoline for 24 hours was measured, a value of +5% was obtained.
比較例２
ポリジメチルシロキサン（ＳＨ４１０） １００ｇに第
３ブチルパーオキサイド０．５ｇを加え、この混合物を
１８０℃、６０ｋｇ／ａＪ、１５分間の条件下で加硫成
形した。Comparative Example 2 0.5 g of tertiary butyl peroxide was added to 100 g of polydimethylsiloxane (SH410), and the mixture was vulcanized and molded at 180° C., 60 kg/aJ, and 15 minutes.
得られた厚さ１００μｍのポリジメチルシロキサンシー
ト（シート強度５８ｋｇ／ａＪ）について、実施例２と
同様の膜性能評価を行ない、次のような結果を得た。The obtained polydimethylsiloxane sheet with a thickness of 100 μm (sheet strength: 58 kg/aJ) was evaluated for membrane performance in the same manner as in Example 2, and the following results were obtained.
酸素の透過係数ニア、２Ｘ１０−ａｍ３（ＳＴＰ）ａｍ
／ ｒｙｌ ・秒・ｃｍＨｇ窒素との分離率：２．２
体積変化率 ： ＋１１４％
実施例３
ポリエチレン粉末（三井石油化学製品ハイゼックスミペ
ロンＸＭ−２２０） １２０ｇに、ポリジメチルシロキ
サンを５重量％、ポリトリメチルビニルシランを５重量
％それぞれ溶解させたトルエン溶液１２００ｇを添加し
、密封容器中で１３０℃に加熱して混合し、次いで減圧
下でトルエンを完全に蒸発除去した後、１８５℃、 ６
０ｋｇ／ｃｄの条件下で厚さ２ｍｍのシート状に一旦成
形し、急冷した。次に、このシート状物を、１４０℃に
加熱した間隔０．０５１１Ｉｆｆｉのロール間を通して
引き出し、徐冷した後、３０℃の雰囲気中で５０％延伸
し、１０５℃で２０ｋｇ／ａｉｒの圧力をかけてシート
状にプレスした。Oxygen permeability coefficient near, 2X10-am3(STP)am
/ryl・sec・cmHg Separation rate from nitrogen: 2.2 Volume change rate: +114% Example 3 120 g of polyethylene powder (Mitsui Petrochemicals Hyzex Miperon XM-220) was mixed with 5% by weight of polydimethylsiloxane and Add 1200 g of a toluene solution in which 5% by weight of trimethylvinylsilane is dissolved, mix by heating to 130°C in a sealed container, then completely evaporate the toluene under reduced pressure, and then heat to 185°C.
It was once formed into a sheet with a thickness of 2 mm under conditions of 0 kg/cd, and then rapidly cooled. Next, this sheet-like material was pulled out through rolls heated to 140°C with a spacing of 0.0511 Iffi, slowly cooled, and then stretched by 50% in an atmosphere of 30°C, and a pressure of 20 kg/air was applied at 105°C. and pressed into a sheet.
このようにして得られたポリジメチルシロキサンおよび
ポリトリメチルビニルシラン担持ポリエチレンシート（
シート強度４２１ｋｇ／ａＪ）について、実施例１と同
様の膜性能評価を行ない５次のような結果を得た。The thus obtained polydimethylsiloxane and polytrimethylvinylsilane supported polyethylene sheet (
Regarding the sheet strength (421 kg/aJ), the membrane performance was evaluated in the same manner as in Example 1, and the following results were obtained.
酸素の透過係数： ８．３Ｘ１０−”ｃｍ’（ＳＴＰ）
ａｍ／ａ＃・秒・ｃｍＨｇ窒素との分離率：３．５Oxygen permeability coefficient: 8.3X10-"cm" (STP)
am/a#・sec・cmHg Separation rate from nitrogen: 3.5
Claims (1)
担持せしめてなる気体分離膜。 ２、延伸多孔質高分子支持体がポリテトラフルオロエチ
レン製である特許請求の範囲第１項記載の気体分離膜。 ３、延伸多孔質高分子支持体がポリオレフィン製である
特許請求の範囲第１項記載の気体分離膜。 ４、約５〜８０重量部の延伸多孔質高分子支持体に対し
約９５〜２０重量部の割合でシリコン系高分子物質を担
持させた特許請求の範囲第１項記載の気体分離膜。 ５、酸素富化膜として用いられる特許請求の範囲第１項
記載の気体分離膜。[Claims] 1. A gas separation membrane comprising a stretched porous polymer support supporting a silicon-based polymer substance. 2. The gas separation membrane according to claim 1, wherein the stretched porous polymer support is made of polytetrafluoroethylene. 3. The gas separation membrane according to claim 1, wherein the stretched porous polymer support is made of polyolefin. 4. The gas separation membrane according to claim 1, wherein about 95 to 20 parts by weight of a silicon-based polymer material is supported on about 5 to 80 parts by weight of a stretched porous polymer support. 5. The gas separation membrane according to claim 1, which is used as an oxygen enrichment membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62072836A JP2504041B2 (en) | 1987-03-25 | 1987-03-25 | Gas separation membrane manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62072836A JP2504041B2 (en) | 1987-03-25 | 1987-03-25 | Gas separation membrane manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63236516A true JPS63236516A (en) | 1988-10-03 |
| JP2504041B2 JP2504041B2 (en) | 1996-06-05 |
Family
ID=13500892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62072836A Expired - Lifetime JP2504041B2 (en) | 1987-03-25 | 1987-03-25 | Gas separation membrane manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2504041B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5123937A (en) * | 1989-02-03 | 1992-06-23 | Japan Gore-Tex Inc. | Deaerating film and deaerating method |
| WO2004027916A1 (en) * | 2002-09-20 | 2004-04-01 | Nec Corporation | Liquid fuel supply type of fuel cell |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855005A (en) * | 1981-09-28 | 1983-04-01 | Mitsubishi Chem Ind Ltd | Separating membrane for gas |
-
1987
- 1987-03-25 JP JP62072836A patent/JP2504041B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855005A (en) * | 1981-09-28 | 1983-04-01 | Mitsubishi Chem Ind Ltd | Separating membrane for gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5123937A (en) * | 1989-02-03 | 1992-06-23 | Japan Gore-Tex Inc. | Deaerating film and deaerating method |
| WO2004027916A1 (en) * | 2002-09-20 | 2004-04-01 | Nec Corporation | Liquid fuel supply type of fuel cell |
| CN100334767C (en) * | 2002-09-20 | 2007-08-29 | 日本电气株式会社 | Liquid fuel supply type of fuel cell |
| US7655343B2 (en) | 2002-09-20 | 2010-02-02 | Nec Corporation | Liquid fuel supply type fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2504041B2 (en) | 1996-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2622225B2 (en) | Filtration membrane and method for producing the membrane | |
| JPH07304887A (en) | Composite membrane and its preparation | |
| Yanagishita et al. | Separation performance of polyimide composite membrane prepared by dip coating process | |
| JPS6094106A (en) | Manufacture of compound membrane | |
| US20230415101A1 (en) | Metal-organic framework material separation membrane, preparation method therefor, and use thereof | |
| KR900002095B1 (en) | Production of porous membrane | |
| US4919694A (en) | Selective gas permeation membranes and method of manufacturing them | |
| JPS63236516A (en) | Gas separating membrane | |
| JPH02290230A (en) | Composite polymer membrane for separating gas mixture and manufacture thereof | |
| JPH0157614B2 (en) | ||
| EP0242069A2 (en) | Semipermeable composite membranes produced from silicone water based emulsions applied to porous substrates | |
| JPS58180206A (en) | Production of selective permeable membrane | |
| JPS61129008A (en) | Composite membrane for separating gas and its preparation | |
| JPS59199001A (en) | Composite membrane for gas separation and its manufacture | |
| JPS62183837A (en) | Gas permeable membrane | |
| Kononova et al. | New polymer multilayer pervaporation membrane | |
| JPH0262294B2 (en) | ||
| JPS586207A (en) | Production of gas permselective composite membrane | |
| JPS63278525A (en) | Production of vapor-liquid separation membrane | |
| JPS6256775B2 (en) | ||
| CN112691552A (en) | Method for preparing high-performance organic gas separation membrane | |
| JPH0419891B2 (en) | ||
| Suzuki et al. | Grafting of siloxane on poly (styrene-co-maleic acid) and application of this grafting technique to a porous membrane for gas separation | |
| JPH0453575B2 (en) | ||
| JPS60102901A (en) | Permselective membrane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |