JP2015127023A - 透湿性濾材 - Google Patents
透湿性濾材 Download PDFInfo
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- JP2015127023A JP2015127023A JP2013272760A JP2013272760A JP2015127023A JP 2015127023 A JP2015127023 A JP 2015127023A JP 2013272760 A JP2013272760 A JP 2013272760A JP 2013272760 A JP2013272760 A JP 2013272760A JP 2015127023 A JP2015127023 A JP 2015127023A
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- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 84
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 84
- 239000012528 membrane Substances 0.000 claims abstract description 70
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 59
- 239000004745 nonwoven fabric Substances 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 37
- 230000035699 permeability Effects 0.000 abstract description 42
- 238000010030 laminating Methods 0.000 abstract description 11
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 22
- 239000000835 fiber Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 10
- 239000004698 Polyethylene Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000010687 lubricating oil Substances 0.000 description 9
- 229920000573 polyethylene Polymers 0.000 description 9
- -1 polytetrafluoroethylene Polymers 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 239000004743 Polypropylene Substances 0.000 description 7
- 229920001155 polypropylene Polymers 0.000 description 7
- 239000004372 Polyvinyl alcohol Substances 0.000 description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 description 6
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 5
- 229920002292 Nylon 6 Polymers 0.000 description 4
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 4
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 4
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 4
- 239000012466 permeate Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 239000003230 hygroscopic agent Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 229920006361 Polyflon Polymers 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229940057995 liquid paraffin Drugs 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000009823 thermal lamination Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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- 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
- B01D71/36—Polytetrafluoroethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
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- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
- B01D61/363—Vapour permeation
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- B01D67/0093—Chemical modification
- B01D67/00933—Chemical modification by addition of a layer chemically bonded to the membrane
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- 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
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- B01D69/1218—Layers having the same chemical composition, but different properties, e.g. pore size, molecular weight or porosity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D71/06—Organic material
- B01D71/38—Polyalkenylalcohols; Polyalkenylesters; Polyalkenylethers; Polyalkenylaldehydes; Polyalkenylketones; Polyalkenylacetals; Polyalkenylketals
- B01D71/381—Polyvinylalcohol
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0618—Non-woven
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/36—Pervaporation; Membrane distillation; Liquid permeation
-
- 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
- B01D71/38—Polyalkenylalcohols; Polyalkenylesters; Polyalkenylethers; Polyalkenylaldehydes; Polyalkenylketones; Polyalkenylacetals; Polyalkenylketals
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
- Laminated Bodies (AREA)
- Drying Of Gases (AREA)
Abstract
Description
(1)親水性層
・親水化PTFE多孔質膜(日東電工社製のPTFE多孔質膜をPVAで処理して親水化したもの)
・EVOH(エチレン−ビニルアルコール共重合体)濾材(クラレ社製 エバール)
・不織布1(芯部分がPPで鞘部分がPEの芯鞘繊維からなる不織布をPMMA処理したもの)(不織布:廣瀬製紙社製 HOP)
・不織布2(芯部分がPETで鞘部分がPA−6の芯鞘繊維からなる不織布)(BONAR社製 Colback)
・不織布3(EVAの繊維からなる不織布)(日東電工社製)
(2)疎水性層
・PTFE多孔質膜(日東電工社製)
・不織布4(芯部分がPPで鞘部分がPEの芯鞘繊維からなる不織布)(廣瀬製紙社製 HOP)
・不織布5(芯部分がPETで鞘部分がPEの芯鞘繊維からなる不織布)(ユニチカ社製 SE100SHO)
そして、得られたPTFE多孔質膜をイソプロピルアルコールで含浸させた後、PVA溶液に浸漬した。その後、グルタールアルデヒドでPVAを架橋して親水化PTFE多孔質膜を得た。
上記の使用材料のうち、EVOH濾材以外は、ASTM規格 D570に準拠して、23度、24時間の条件で、吸水率を測定した。EVOH濾材に関しては、所定サイズのEVOH濾材を水に浸漬した際に増加する濾材の質量の割合を吸水率として測定した。
下記表1に記載の層構成となるように、上記の各使用材料を積層して実施例1〜4の透湿性濾材と比較例1〜4の透湿性濾材とを作成した。
秤量済みの吸湿剤(塩化カルシウム)をカップ(JIS L 1099に準拠したφ60mmの開口面を有するもの)に収容し、カップの開口面全体を隙間なく覆うように透湿性濾材をカップの開口部に取り付けた。この際、吸湿剤と透湿性濾材との間隔は、3mmとし、透湿面積は、0.00283m2 とした。透湿性濾材で開口面が覆われたカップを湿度80%、温度30℃の恒温槽内に一時間配置した。その後、斯かるカップを恒温槽から取り出して、吸湿剤を秤量した。そして、恒温槽に入れる前と恒温槽に入れた後の吸湿剤の質量の差(即ち、吸湿剤に吸収された水蒸気量)Aとカップの開口面の面積Bとを用いて、下記(1)式により、透湿度を算出した。透湿度については、下記表1に示す。
透湿度(g/m2/h)=A/B…(1)
各実施例と各比較例とを比較すると、基準例の透湿度に対して、各実施例の方が透湿度の低下が抑制されることが認められる。つまり、疎水性層と親水性層とが積層されて、何れか一方の層がPTFE多孔質膜から構成され、何れか他方の層が不織布から構成されることで、PTFE多孔質膜に不織布が積層されることによって生じる透湿度の低下を抑制することができる。
また、一般的に、透湿度は、透湿性濾材の厚みに反比例するが、実施例1〜3を比較すると、厚みが最も厚い実施例2の透湿度が最も高いことが認められる。つまり、疎水性層がPTFE多孔質膜から構成され、疎水性層が不織布から構成される場合、疎水性層と親水性層の吸水率の差が大きい方が透湿度が高くなることが認められる。
Claims (3)
- シート状に形成されて少なくとも一方の面側から他方の面側に向かって水蒸気を透過可能に構成された透湿性濾材であって、
疎水性を有する疎水性層と親水性を有する親水性層とが積層されて構成されており、疎水性層又は親水性層の何れか一方がPTFEを用いて形成されたPTFE多孔質膜から構成されると共に、疎水性層又は親水性層の何れか他方が通気性を有する通気性シートから構成されることを特徴とする透湿性濾材。 - 前記通気性シートは、不織布を用いて形成されており、該不織布は、厚みが20μm以上1000μm以下であることを特徴とする請求項1に記載の透湿性濾材。
- 前記疎水性層と親水性層とが接触するように積層されて構成されることを特徴とする請求項1又は2に記載の透湿性濾材。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013272760A JP6453537B2 (ja) | 2013-12-27 | 2013-12-27 | 透湿性濾材 |
PCT/JP2014/081224 WO2015098404A1 (ja) | 2013-12-27 | 2014-11-26 | 透湿性濾材 |
KR1020167019143A KR102237271B1 (ko) | 2013-12-27 | 2014-11-26 | 투습성 여과재 |
CN201480070557.0A CN105848766B (zh) | 2013-12-27 | 2014-11-26 | 透湿性滤材 |
EP14873489.0A EP3088072B1 (en) | 2013-12-27 | 2014-11-26 | Moisture permeable filter medium |
US15/107,821 US9770692B2 (en) | 2013-12-27 | 2014-11-26 | Moisture permeable filter medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013272760A JP6453537B2 (ja) | 2013-12-27 | 2013-12-27 | 透湿性濾材 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2017246593A Division JP6564840B2 (ja) | 2017-12-22 | 2017-12-22 | 透湿性濾材 |
Publications (2)
Publication Number | Publication Date |
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JP2015127023A true JP2015127023A (ja) | 2015-07-09 |
JP6453537B2 JP6453537B2 (ja) | 2019-01-16 |
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JP2013272760A Active JP6453537B2 (ja) | 2013-12-27 | 2013-12-27 | 透湿性濾材 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9770692B2 (ja) |
EP (1) | EP3088072B1 (ja) |
JP (1) | JP6453537B2 (ja) |
KR (1) | KR102237271B1 (ja) |
CN (1) | CN105848766B (ja) |
WO (1) | WO2015098404A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017073673A1 (ja) * | 2015-10-29 | 2017-05-04 | 東レ株式会社 | 積層フィルム |
JP2018043244A (ja) * | 2017-12-22 | 2018-03-22 | 日東電工株式会社 | 透湿性濾材 |
WO2018117056A1 (ja) * | 2016-12-19 | 2018-06-28 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜とこれを用いた防水通気膜及び防水通気部材 |
WO2018116517A1 (ja) * | 2016-12-19 | 2018-06-28 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜とこれを用いた防水通気膜及び防水通気部材 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013226253B4 (de) | 2013-12-17 | 2016-03-24 | Aptar Radolfzell Gmbh | Schutzkappe für einen Spender und Spender zum Austrag von pharmazeutischen und/oder kosmetischen Flüssigkeiten |
JPWO2018174224A1 (ja) * | 2017-03-24 | 2020-01-23 | 三菱製紙株式会社 | 半透膜支持体 |
CN109855377B (zh) * | 2017-11-30 | 2020-10-30 | 青岛海尔股份有限公司 | 冷藏冷冻装置及其储物容器 |
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CN105848766B (zh) | 2019-09-27 |
EP3088072B1 (en) | 2021-07-07 |
JP6453537B2 (ja) | 2019-01-16 |
CN105848766A (zh) | 2016-08-10 |
US20160325238A1 (en) | 2016-11-10 |
EP3088072A4 (en) | 2017-08-23 |
KR102237271B1 (ko) | 2021-04-07 |
WO2015098404A1 (ja) | 2015-07-02 |
EP3088072A1 (en) | 2016-11-02 |
US9770692B2 (en) | 2017-09-26 |
KR20160102223A (ko) | 2016-08-29 |
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