JPH02241509A - Laminated body for filter - Google Patents
Laminated body for filterInfo
- Publication number
- JPH02241509A JPH02241509A JP6054789A JP6054789A JPH02241509A JP H02241509 A JPH02241509 A JP H02241509A JP 6054789 A JP6054789 A JP 6054789A JP 6054789 A JP6054789 A JP 6054789A JP H02241509 A JPH02241509 A JP H02241509A
- Authority
- JP
- Japan
- Prior art keywords
- activated carbon
- filter
- nonwoven fabric
- layer
- phenolic resin
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 104
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 28
- 239000005011 phenolic resin Substances 0.000 claims abstract description 21
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 229920000728 polyester Polymers 0.000 claims abstract description 5
- 229920000098 polyolefin Polymers 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims description 23
- 239000006260 foam Substances 0.000 claims description 19
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 18
- 229920001568 phenolic resin Polymers 0.000 claims description 17
- 239000002245 particle Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 9
- 230000001590 oxidative effect Effects 0.000 abstract description 7
- 239000000779 smoke Substances 0.000 abstract description 7
- 238000004332 deodorization Methods 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 3
- 238000005468 ion implantation Methods 0.000 abstract description 2
- 241000208125 Nicotiana Species 0.000 abstract 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract 1
- 239000010419 fine particle Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 239000011134 resol-type phenolic resin Substances 0.000 description 8
- -1 alkali metal bicarbonates Chemical class 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 7
- 235000019504 cigarettes Nutrition 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000004604 Blowing Agent Substances 0.000 description 6
- 238000010000 carbonizing Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
- 230000004913 activation Effects 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 4
- 239000004088 foaming agent Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 2
- 150000008041 alkali metal carbonates Chemical class 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 210000000497 foam cell Anatomy 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 150000008282 halocarbons Chemical class 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920003987 resole Polymers 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 2
- WHOZNOZYMBRCBL-OUKQBFOZSA-N (2E)-2-Tetradecenal Chemical compound CCCCCCCCCCC\C=C\C=O WHOZNOZYMBRCBL-OUKQBFOZSA-N 0.000 description 1
- USVVENVKYJZFMW-ONEGZZNKSA-N (e)-carboxyiminocarbamic acid Chemical compound OC(=O)\N=N\C(O)=O USVVENVKYJZFMW-ONEGZZNKSA-N 0.000 description 1
- ZZJVDYQPZOHNIK-UHFFFAOYSA-N 2,6-dihydroxybenzenesulfonic acid Chemical compound OC1=CC=CC(O)=C1S(O)(=O)=O ZZJVDYQPZOHNIK-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- QDHFHIQKOVNCNC-UHFFFAOYSA-N butane-1-sulfonic acid Chemical compound CCCCS(O)(=O)=O QDHFHIQKOVNCNC-UHFFFAOYSA-N 0.000 description 1
- 229950005499 carbon tetrachloride Drugs 0.000 description 1
- 229960001701 chloroform Drugs 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- UMNKXPULIDJLSU-UHFFFAOYSA-N dichlorofluoromethane Chemical compound FC(Cl)Cl UMNKXPULIDJLSU-UHFFFAOYSA-N 0.000 description 1
- 229940099364 dichlorofluoromethane Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000004872 foam stabilizing agent Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 201000005202 lung cancer Diseases 0.000 description 1
- 208000020816 lung neoplasm Diseases 0.000 description 1
- 229920001911 maleic anhydride grafted polypropylene Polymers 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 229940029284 trichlorofluoromethane Drugs 0.000 description 1
- 125000002256 xylenyl group Chemical class C1(C(C=CC=C1)C)(C)* 0.000 description 1
Landscapes
- Filtering Materials (AREA)
- Laminated Bodies (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
発明の技術分野
本発明は、室内の空気を吸引し、浄化して排出する空気
清浄機などにフィルタとして用いられるフィルタ用積層
体に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a filter laminate used as a filter in an air cleaner or the like that sucks indoor air, purifies it, and then discharges it.
発明の技術的背景
近年、煙草から生じる煙は、喫煙者と同室する非喫煙者
の肺癌罹病率を増加させるという統計結果が紹介される
などの理由により、特に室内の空気を清浄にする装置へ
の需要が高まってきている。Technical Background of the Invention In recent years, statistical results have been introduced showing that smoke from cigarettes increases the incidence of lung cancer in non-smokers who share a room with smokers, and for this reason, there has been an increase in the demand for devices that purify indoor air. The demand for is increasing.
そこで、室内の空気を吸引し、フィルタを通過させて浄
化し排出する各種空気清浄機が使用されているが、従来
用いられているフィルタは、塵芥の捕集能力に劣るため
未だに充分な性能を備えた空気清浄機は得られていない
。Therefore, various air purifiers are used that suck indoor air, pass it through a filter, purify it, and then discharge it.However, the filters used in the past still lack sufficient performance due to their inferior ability to collect dust. The air purifier provided is not available.
たとえば、不織布を用いたフィルタは、煙草から生ずる
煙に含まれる成分粒子のうち比較的大きなミクロンオー
ダーの粒子はかなり捕集することができるが、悪臭成分
などは有効に除去することができないという問題点があ
った。For example, filters using non-woven fabrics can collect a large amount of relatively large micron-order particles contained in smoke generated from cigarettes, but they cannot effectively remove malodorous components. There was a point.
このため、悪臭成分などを除去できる素材として活性炭
が注目されており、たとえば、粉状または粒状をなす活
性炭を、セラミック、ピッチ、熱硬化性樹脂などの基材
に混合し、成形したフィル夕月材料が提案されている。For this reason, activated carbon is attracting attention as a material that can remove odor components, etc. For example, powdered or granular activated carbon is mixed with a base material such as ceramic, pitch, or thermosetting resin, and then formed into a film called Yugetsu. materials are proposed.
このフィルタ用材料は、粉状または粒状をなす活性炭を
そのまま用いた場合と比較して取扱いが容易であるとい
う利点があり、上記の不織布とともに併用することによ
り、空気中に浮遊するミクロンオーダーの粒子と、サブ
ミクロンオーダーの粒子とを同時に除去できるフィルタ
を得ることが可能である。This filter material has the advantage of being easier to handle than powdered or granular activated carbon used as it is, and when used together with the nonwoven fabric mentioned above, it can reduce micron-order particles floating in the air. It is possible to obtain a filter that can simultaneously remove particles on the order of submicrons and particles on the order of submicrons.
しかしながら、このフィルタ材料は、活性炭の表面の一
部が基材によって覆われるため活性炭の脱臭能力が低く
、脱臭性能が劣ったフィルタしか得られないという問題
があった。However, this filter material has a problem in that since a part of the surface of the activated carbon is covered with the base material, the deodorizing ability of the activated carbon is low, and only a filter with poor deodorizing performance can be obtained.
また、このフィルタ材料は、上記した基材と活性炭との
接着性が低く、空気清浄機作動中に基材から活性炭が遊
離し、微細な粉状物となって空気中を浮遊するため、か
えって環境を損なうなどの問題もあった。In addition, this filter material has poor adhesion between the above-mentioned base material and activated carbon, and when the air purifier is operating, the activated carbon is released from the base material and becomes fine powder that floats in the air. There were also problems such as damage to the environment.
発明の目的
本発明は、上記のような従来技術に伴う問題点を解決し
ようとするものであって、煙草から生じる煙に含まれる
ミクロンオーダーの粒子と、サブミクロンオーダーの粒
子とを同時に効率良く吸着でき、しかも空気清浄機作動
中に粉状活性炭を発生させるようなことがないようなフ
ィルタ用積層体を提供することを目的としている。Purpose of the Invention The present invention aims to solve the problems associated with the prior art as described above. It is an object of the present invention to provide a filter laminate that can adsorb powdered activated carbon and does not generate powdered activated carbon during operation of an air cleaner.
発明の概要
本発明に係るフィルタ用積層体は、フェノール樹脂発泡
体が炭化、賦活されてなり、高密度０．０５〜０．５ｇ
／（至）、炭素含有率８５〜９５重量％および比表面積
５００ ｒｒｅ ／ ｇ以上の活性化炭素多孔体からな
る活性化炭素多孔体層と、ポリオレフィン繊維またはポ
リエステル繊維を主成分としてなる不織布層とが積層さ
れていることを特徴とする。Summary of the Invention The filter laminate according to the present invention is made of carbonized and activated phenolic resin foam, and has a high density of 0.05 to 0.5 g.
/(To), an activated carbon porous material layer consisting of an activated carbon porous material having a carbon content of 85 to 95% by weight and a specific surface area of 500 rre/g or more, and a nonwoven fabric layer mainly composed of polyolefin fibers or polyester fibers. It is characterized by being laminated.
本発明に係るフィルタ用積層体では、上記不織布層は主
に煙草から生ずる煙に含まれるミクロンオーダーの粒子
を濾過するために設けられており、エレクトレット化さ
れていることが好ましい。In the filter laminate according to the present invention, the nonwoven fabric layer is provided mainly for filtering micron-order particles contained in smoke generated from cigarettes, and is preferably made of electret.
このようなフィルタ用積層体によれば、煙草から生ずる
煙に含まれるミクロンオーダーの粒子と、サブミクロン
オーダーの粒子とを同時に除去することができる。また
、フェノール樹脂発泡体を炭化、賦活して得られた活性
化炭素多孔体層は、全体が発泡体セル構造と、細孔を無
数に有する微細構造とを有する活性炭で構成されている
ために、サブミクロンオーダーの粒子を効率良くかつ長
時間吸着除去でき、しかも機械的強度に優れているため
、使用中に破壊されて粉状物となることがない。According to such a filter laminate, it is possible to simultaneously remove micron-order particles and submicron-order particles contained in smoke generated from cigarettes. In addition, the activated carbon porous layer obtained by carbonizing and activating the phenolic resin foam is entirely composed of activated carbon that has a foam cell structure and a microstructure with countless pores. It can efficiently adsorb and remove submicron-order particles for a long time, and has excellent mechanical strength, so it does not break down into powder during use.
発明の詳細な説明
以下本発明に係るフィルタ用積層体について具体的に説
明する。DETAILED DESCRIPTION OF THE INVENTION The filter laminate according to the present invention will be specifically described below.
本発明に係るフィルタ用積層体は、フェノール樹脂発泡
体を炭化し、次いで賦活して得られる活性化炭素多孔体
からなる活性化炭素多孔体層と、不織布層とを備える。The filter laminate according to the present invention includes an activated carbon porous body layer made of an activated carbon porous body obtained by carbonizing and then activating a phenolic resin foam, and a nonwoven fabric layer.
また、本発明で用いられるフェノール樹脂発泡体は、フ
ェノール樹脂を発泡硬化させて得られ、このようなフェ
ノール樹脂としては、レゾール型フェノール樹脂が用い
られる。Further, the phenolic resin foam used in the present invention is obtained by foaming and curing a phenol resin, and a resol type phenol resin is used as such a phenol resin.
レゾール型フェノール樹脂は、公知の方法にしたがって
、たとえばフェノール類とアルデヒド類とをアルカリ触
媒の存在下で、８０℃〜１００℃の温度まで加熱して縮
合させ、次いで減圧下にて固形分が６０〜８０重量％と
なるまで水を留去して得られる。得られたレゾール型フ
ェノール樹脂としては、具°体的には、常温での粘度が
１０００〜２００００ ｃｐｓの液状体が好ましく用い
られる。The resol type phenolic resin is produced by heating and condensing phenols and aldehydes in the presence of an alkali catalyst to a temperature of 80°C to 100°C, and then reducing the solid content to 60°C under reduced pressure according to a known method. It is obtained by distilling off water until it becomes ~80% by weight. Specifically, a liquid material having a viscosity of 1000 to 20000 cps at room temperature is preferably used as the obtained resol type phenolic resin.
フェノール類としては、具体的には、フェノール、クレ
ゾール、キシレノールおよびレゾルシンなどが用いられ
る。Specifically, phenols include phenol, cresol, xylenol, resorcinol, and the like.
アルデヒド類としては、具体的には、ホルムアルデヒド
、アセトアルデヒドおよびフルフラールなどが用いられ
る。Specifically, formaldehyde, acetaldehyde, furfural, and the like are used as the aldehydes.
アルカリ触媒としては、具体的には、ＫＯＨ。Specifically, the alkali catalyst is KOH.
Ｃａ ＯＨ，Ｂａ （ＯＨ） ２、 ＮＨ（ＣＨ２ＣＨ２）、 ＮＨ（ＣＨＣＨ２）２ およびＮ（ＣＨＣＨ２）３などが用いられる。Ca OH, Ba (OH) 2, NH(CH2CH2), NH(CHCH2)2 and N(CHCH2)3, etc. are used.
レゾール型フェノール樹脂を発泡させるための発泡剤と
しては、従来公知の種々の分解型発泡剤および蒸発型発
泡剤が用いられる。As the foaming agent for foaming the resol type phenolic resin, various conventionally known decomposition type foaming agents and evaporation type foaming agents are used.
分解型発泡剤としては、アルカリ金属炭酸塩、アルカリ
金属重炭酸塩、アゾビスイソブチリロ二トリル、アゾジ
カルボン酸アミドなどが好ましく用いられる。As the decomposable blowing agent, alkali metal carbonates, alkali metal bicarbonates, azobisisobutyrylonitrile, azodicarboxylic acid amide, and the like are preferably used.
上記のようなアルカリ金属炭酸塩としては、具体的には
、
Ｎａ ＣＯ、Ｎａ ＨＣＯ５Ｋ２ＣＯ３，ＣａＣＯ
、ＭｇＣ０、ＢａＣＯ３などが用いられる。Specifically, the above-mentioned alkali metal carbonates include Na CO, Na HCO5K2CO3, CaCO
, MgC0, BaCO3, etc. are used.
蒸発型発泡剤としては、パラフィン系炭化水素、アルコ
ール、エーテル、ハロゲン化炭化水素などが好ましく用
いられる。As the evaporative blowing agent, paraffin hydrocarbons, alcohols, ethers, halogenated hydrocarbons, etc. are preferably used.
パラフィン系炭化水素としては、具体的には、プロパン
、ブタン、ペンタンなどが用いられる。Specifically, propane, butane, pentane, etc. are used as the paraffinic hydrocarbon.
ハロゲン化炭化水素としては、具体的には、クロロホル
ム、四塩化炭素、ジクロロフルオロメタン、トリクロロ
フルオロメタン、１．１．２．２−テトラクロロ−１，
２−ジフルオロエタン、１．１．２．２−テトラクロロ
−１，２，２−）リフルオロエタン、１，１，２．２−
テトラクロロ−１，１，２，２−テトラフルオロエタン
などが用いられる。Specifically, halogenated hydrocarbons include chloroform, carbon tetrachloride, dichlorofluoromethane, trichlorofluoromethane, 1.1.2.2-tetrachloro-1,
2-difluoroethane, 1.1.2.2-tetrachloro-1,2,2-)lifluoroethane, 1,1,2.2-
Tetrachloro-1,1,2,2-tetrafluoroethane and the like are used.
このような発泡剤は、フェノール樹脂１００重量部に対
し、通常０．１〜２０重量部、好ましくは０．５〜５重
量部の量で用いられ、用いられる発泡剤の量により得ら
れる樹脂発泡体の嵩密度が調節される。Such a blowing agent is usually used in an amount of 0.1 to 20 parts by weight, preferably 0.5 to 5 parts by weight, per 100 parts by weight of the phenolic resin, and the resin foaming obtained by the amount of the blowing agent used is Body bulk density is regulated.
レゾール型フェノール樹脂を発泡硬化させるために発泡
剤とともに硬化剤が用いられるが、この硬化剤としては
、公知の種々の硬化剤が、レゾール型フェノール樹脂の
杆順に応じて選択され使用される。A curing agent is used together with a foaming agent to foam and harden the resol type phenolic resin, and as this curing agent, various known curing agents are selected and used depending on the rod order of the resol type phenolic resin.
このような硬化剤としては、無機強酸、有機強酸あるい
はこれらの混合物が好ましく用いられる。As such a curing agent, a strong inorganic acid, a strong organic acid, or a mixture thereof is preferably used.
無機強酸としては、具体的には、硫酸、塩酸、硝酸、リ
ン酸、ビロリン酸およびポリリン酸などが用いられる。As the inorganic strong acid, specifically, sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, birophosphoric acid, polyphosphoric acid, etc. are used.
有機強酸としては、具体的には、フェノールスルホン酸
、ベンゼンスルホン酸、トルエンスルホン酸、メタクレ
ゾールスルホン酸、レゾルシノールスルホン酸、ブチル
スルホン酸、プロピルスルホン酸などが用いられる。Specific examples of the strong organic acid include phenolsulfonic acid, benzenesulfonic acid, toluenesulfonic acid, metacresolsulfonic acid, resorcinolsulfonic acid, butylsulfonic acid, propylsulfonic acid, and the like.
このような硬化剤は、通常レゾール型フェノール樹脂１
００重量部に対して、３〜３０重量部の量で用いられる
。また本発明においては、必要に応じてさらに他の成分
、たとえば整泡剤や充填剤を併用してもかまわない。Such curing agents are usually resol type phenolic resins 1
00 parts by weight, it is used in an amount of 3 to 30 parts by weight. Further, in the present invention, other components such as foam stabilizers and fillers may be used in combination as necessary.
上記のようなレゾール型フェノール樹脂、発泡剤および
硬化剤を一挙にもしくは逐次に混合撹拌して得られた、
クリーム状のフェノール樹脂プレポリマー組成物をたと
えば保温された金型内もしくは２重帯状コンベアー上に
供給すると、フェノール樹脂プレポリマー組成物は発泡
硬化される。obtained by mixing and stirring the above-mentioned resol type phenolic resin, blowing agent, and curing agent all at once or sequentially.
When the creamy phenolic resin prepolymer composition is fed, for example, into a heated mold or onto a double belt conveyor, the phenolic resin prepolymer composition is foamed and cured.
得られた樹脂発泡体は、必要に応じて切断してもよい。The obtained resin foam may be cut as necessary.
このようにして得られたフェノール樹脂発泡体は、通常
発泡倍率３〜２０倍、好ましくは発泡倍率５〜１５倍、
特に好ましくは７〜１２倍とされる。The phenolic resin foam thus obtained usually has a foaming ratio of 3 to 20 times, preferably a foaming ratio of 5 to 15 times,
Particularly preferably, it is 7 to 12 times.
このような範囲の発泡倍率を有するフェノール樹脂発泡
体は、炭化、賦活して得られる活性化炭素多孔体は吸着
性能が高く、しかも強度が高いため、フィルタ使用時あ
るいは再生時に破損して粉状化することがない。The activated carbon porous material obtained by carbonizing and activating the phenolic resin foam with the expansion ratio in this range has high adsorption performance and high strength, so it does not break and turn into powder when the filter is used or regenerated. It will never change.
このようにして得られたフェノール樹脂発泡体は、不活
性雰囲気下で６００℃〜１１００℃、好ましくは７００
℃〜１０００℃の温度に加熱して炭化される。The phenolic resin foam thus obtained is heated to 600°C to 1100°C, preferably 700°C under an inert atmosphere.
It is carbonized by heating to a temperature of 1000°C to 1000°C.
上記のような炭化温度で炭化処理を行なうと、フェノー
ル樹脂発泡体の炭化を充分に行なうことができ、比表面
積が大きく、かつ吸着性能の高い炭素多孔体が得られる
。また、次の賦活処理で寸法変化を生ずるため炭素多孔
体に亀裂を生じ、圧壊強度を低下させたり、細孔数を減
少させて、比表面積を小さくすることもない。When the carbonization treatment is carried out at the above-mentioned carbonization temperature, the phenolic resin foam can be sufficiently carbonized, and a porous carbon body having a large specific surface area and high adsorption performance can be obtained. In addition, the subsequent activation treatment does not cause dimensional changes that cause cracks in the carbon porous body, thereby reducing the crushing strength, reducing the number of pores, and reducing the specific surface area.
このような炭化処理は、不活性雰囲気下で行なわれるが
、具体的には、窒素、アルゴンなどの雰囲気下で行なわ
れる。Such carbonization treatment is performed under an inert atmosphere, and specifically, under an atmosphere of nitrogen, argon, or the like.
上記のようにフェノール樹脂発泡体を不活性雰囲気下で
５００〜１０００℃の温度に加熱して炭化することによ
り、発泡体を構成するフェノール樹脂に含まれる酸素お
よび水素原子は、水または低分子量有機化合物に分解さ
れて発泡体外に除去され、その結果、得られる炭素多孔
体の炭素含有率は９０％近くなり、かつ低分子量物が揮
発したあとがμｍオーダーの細孔となる。また、レゾー
ル型フェノール樹脂は水分を大量に含有しており、これ
を原料として得られるフェノール樹脂発泡体内にも水分
が大量に存在しているため、このフェノール樹脂発泡体
を加熱して炭化する際に大量の水が揮発し、得られる炭
素多孔体は多数の細孔を有する。By heating the phenolic resin foam to a temperature of 500 to 1000°C in an inert atmosphere and carbonizing it as described above, the oxygen and hydrogen atoms contained in the phenolic resin constituting the foam are removed from water or low molecular weight organic It is decomposed into compounds and removed from the foam, and as a result, the carbon content of the obtained porous carbon material is nearly 90%, and after the low molecular weight substances have volatilized, pores on the order of μm are formed. In addition, resol type phenolic resin contains a large amount of water, and a large amount of water also exists in the phenolic resin foam obtained using this as a raw material, so when heating and carbonizing this phenolic resin foam, A large amount of water evaporates during the process, and the resulting carbon porous material has many pores.
したがって、このような温度範囲内でフェノール樹脂発
泡体を炭化して得られる炭素多孔体は、発泡体セル構造
と、細孔を無数に有するという微細構造とを有し、その
ため比表面積が大きく不充分ではあるが、活性炭として
の吸着性能を示す。Therefore, a porous carbon material obtained by carbonizing a phenolic resin foam within such a temperature range has a foam cell structure and a microstructure with countless pores, and therefore has a large specific surface area and a small amount of pores. Although sufficient, it shows adsorption performance as activated carbon.
このようにして得られた炭素多孔体は、さらに酸化性ガ
ス雰囲気下で７００〜１０００℃の温度で加熱される賦
活処理により活性化される。The carbon porous body thus obtained is further activated by an activation treatment in which it is heated at a temperature of 700 to 1000°C in an oxidizing gas atmosphere.
酸化性ガスとしては、活性炭の賦活処理に使用される従
来公知の各種酸素含有気体が用いられ、酸素または水蒸
気などの酸化性ガスと不活性ガスとの混合気体などが好
ましく用いられる。As the oxidizing gas, various conventionally known oxygen-containing gases used in the activation treatment of activated carbon are used, and a mixed gas of an oxidizing gas such as oxygen or water vapor and an inert gas is preferably used.
不活性ガスと酸化性ガスとの混合比は、処理温度に応じ
て決定されるが、作業性を考慮すると、不活性ガス１モ
ルに対し、酸化性ガスは０．０１〜０．５モル、好まし
くは０，１モル〜０．３モルの割合で混合される。The mixing ratio of inert gas and oxidizing gas is determined depending on the processing temperature, but considering workability, the oxidizing gas should be 0.01 to 0.5 mol per mol of inert gas, Preferably, they are mixed at a ratio of 0.1 mol to 0.3 mol.
上記のような賦活処理時間は、前述した酸化性ガスの濃
度に応じて変化するが、作業性を考慮すると通常１分〜
２４時間の範囲であることが好ましい。The activation treatment time as described above varies depending on the concentration of the oxidizing gas mentioned above, but considering workability, it is usually 1 minute to 1 minute.
Preferably, the period is within 24 hours.
このようにして得られた活性化炭素多孔体は、嵩密度が
０．０５〜０．５ｇ／ｃｒｎ３の範囲にある。The activated carbon porous body thus obtained has a bulk density in the range of 0.05 to 0.5 g/crn3.
この範囲内の嵩密度を有する活性化炭素多孔体は、賦活
操作が容易で、得られた多孔体の脱臭性能が極めて優れ
ている。An activated carbon porous body having a bulk density within this range is easy to activate, and the resulting porous body has extremely excellent deodorizing performance.
また、活性化炭素多孔体の比表面積は５００ｒｒｌ’／
ｇ以上であり、この範囲の比表面積を有する活性化炭素
多孔体は、サブミクロンオーダーの粒子を吸着する能力
が極めて優れている。なお、本明細書における比表面積
とは、ＢＥＴ法によるＮ２の等温吸着曲線により求めた
値である。In addition, the specific surface area of the activated carbon porous material is 500rrl'/
The activated carbon porous material having a specific surface area in this range has an extremely excellent ability to adsorb submicron-order particles. Note that the specific surface area in this specification is a value determined from an isothermal adsorption curve of N2 by the BET method.
さらに、活性化炭素多孔体の炭素含有率は、８５〜９５
重量％、好ましくは８８〜９２重量％であり、この範囲
の活性炭素多孔体は脱臭性能が極めて優れている。Furthermore, the carbon content of the activated carbon porous material is 85 to 95
% by weight, preferably 88 to 92% by weight, and the activated carbon porous material within this range has extremely excellent deodorizing performance.
このような活性化炭素多孔体からなる活性化炭素多孔体
層とともに、フィルタ用積層体を構成する不織布層とし
ては、公知の各種繊維状物からなる不織布が用いられる
。In addition to the activated carbon porous material layer made of such an activated carbon porous material, nonwoven fabrics made of various known fibrous materials are used as the nonwoven fabric layer constituting the filter laminate.
繊維状物としては、樹脂製繊維、あるいは樹脂製フィル
ムを切断して得た線状物が用いられる。As the fibrous material, a resin fiber or a linear material obtained by cutting a resin film is used.
樹脂製繊維および樹脂製フィルムの原料は加工しやすく
安価であることが好ましく、この原料としては、具体的
には、ポリエチレン、ポリプロピレンなどのポリオレフ
ィン、ポリエチレンフタレートなどのポリエステルなど
が用いられる。The raw materials for the resin fibers and resin films are preferably easy to process and inexpensive, and specifically, polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene phthalate, etc. are used.
また、不織布は、空気中に浮遊する粒子を付着しやすく
するために、エレクトレット化されていることが好まし
い。Further, the nonwoven fabric is preferably made of electret so that particles floating in the air can easily adhere to the nonwoven fabric.
エレクトレット化された不織布は、この不織布を構成す
る繊維状物を予めエレクトレット化して得られる。An electret nonwoven fabric is obtained by previously converting a fibrous material constituting the nonwoven fabric into an electret.
不織布をエレクトレット化するには、公知各種の方法を
用いることができ、具体的には、コロナ放電を利用する
方法、イオン注入法などが用いられる。In order to convert a nonwoven fabric into an electret, various known methods can be used, and specifically, a method using corona discharge, an ion implantation method, etc. are used.
本願発明に係るフィルタ用積層体は、上記したような活
性化炭素多孔体層を、不織布層と積層して構成されてお
り、活性化炭素多孔体層と不織布層の数は特に限定され
ない。The filter laminate according to the present invention is configured by laminating the activated carbon porous layer as described above with a nonwoven fabric layer, and the number of activated carbon porous layers and nonwoven fabric layers is not particularly limited.
したがって、本発明に係るフィルタ用積層体としては、
具体的には、活性化炭素多孔体層と不織布層とを１層づ
つ備えた積層体、１層の活性化炭素多孔体層とこの活性
化炭素多孔体層をはさむ２層の不織布層とを備えた積層
体、各々複数の活性化炭素多孔体層と不織布層とを交互
に積層された積層体などが、フィルタとして好ましく用
いられる。Therefore, the filter laminate according to the present invention includes:
Specifically, a laminate comprising one activated carbon porous layer and one nonwoven fabric layer, one activated carbon porous layer and two nonwoven fabric layers sandwiching this activated carbon porous layer. A laminate including a plurality of activated carbon porous layers and a plurality of nonwoven fabric layers alternately stacked on each other is preferably used as the filter.
活性化炭素多孔体層と不織布とを積層するには、接着剤
は不要であり、単に一体的に活性炭素多孔体層と不織布
層とが配列・積層されていればよい。To laminate the activated carbon porous material layer and the nonwoven fabric layer, no adhesive is required, and it is sufficient that the activated carbon porous material layer and the nonwoven fabric layer are simply arranged and laminated in one piece.
なお本発明では、活性炭素繊維層と不織布層との間に本
発明の目的を損わない範囲で他の層、たとえば金属、プ
ラスチックなどの網状体層および紙、多孔質セラミック
、多孔状プラスチックなどの層が設けられていてもよい
。In the present invention, other layers such as a mesh layer of metal, plastic, paper, porous ceramic, porous plastic, etc. may be used between the activated carbon fiber layer and the nonwoven fabric layer to the extent that the object of the present invention is not impaired. layers may be provided.
発明の効果
本発明に係るフィルタ用積層体は、煙草から生ずる煙に
含まれるミクロンオーダーの粒子と、サブミクロンオー
ダーの粒子とを同時に除去することができる。Effects of the Invention The filter laminate according to the present invention can simultaneously remove micron-order particles and submicron-order particles contained in smoke generated from cigarettes.
また、本発明に係るフィルタ用積層体を構成する活性炭
素多孔体層は、煙草の悪臭成分などのザブミクロンオー
ダーの粒子を効率良くかつ長時間吸着できるため、室内
の空気を長時間にわたって清浄に保持できる。In addition, the activated carbon porous material layer constituting the filter laminate according to the present invention can efficiently adsorb submicron-order particles such as bad odor components of cigarettes for a long time, so indoor air can be purified for a long time. Can be retained.
しかも活性炭素多孔体層は、機械的強度に優れているた
め、フィルタ用積層体使用時に破壊されて粉状物となり
、空気中に浮遊して環境を悪化させることがない。Moreover, since the activated carbon porous layer has excellent mechanical strength, it will not be broken into powder when the filter laminate is used, and will not float in the air and degrade the environment.
以下本発明を実施例により説明するが、本発明はこれら
実施例に限定されるものではない。EXAMPLES The present invention will be explained below with reference to Examples, but the present invention is not limited to these Examples.
実施例１
［活性炭素多孔体の製造］
レゾル１００重量部、硬化剤としてのパラトルエンスル
ホン酸１０重量部、および発泡剤としてのフロンガス（
フレオン１１）５重量部を高速ミキサーで充分に撹拌し
た後、該混合物を木型内に流し込み蓋をした後、８０℃
のエアーオーブン内に３０分放置することにより、嵩密
度０．１．５ｓｒ／ ａｍ ”のフェノール樹脂発泡体
を得た。この発泡体から厚さ５ｃｍの板を切り出し、こ
の板を内径５０關の石英製カラムに入れ、該カラム内の
雰囲気をＮ２に置換した後、外部のヒーターにより昇温
速度６０℃／分で８００℃の温度まで昇温し、次いでＮ
２ガスと水蒸気との混合モル比が０．８＝０．２である
混合ガスを１０ｇ／分の速度で流し、３０分間賦活処理
した後冷却することにより、炭素含有率９０重量％、嵩
密度０．１４ｇ／ｃｍ３比表面積１２００ｍ２／ｇの活
性化炭素多孔体を得た。Example 1 [Production of activated carbon porous material] 100 parts by weight of resol, 10 parts by weight of para-toluenesulfonic acid as a hardening agent, and fluorocarbon gas (as a blowing agent)
After thoroughly stirring 5 parts by weight of Freon 11) with a high-speed mixer, the mixture was poured into a wooden mold, covered with a lid, and heated to 80°C.
A phenolic resin foam with a bulk density of 0.1.5 sr/am was obtained by leaving it in an air oven for 30 minutes.A 5 cm thick plate was cut from this foam, and this plate was molded into a mold with an inner diameter of 50 cm. After placing the column in a quartz column and replacing the atmosphere in the column with N2, the temperature was raised to 800°C at a rate of 60°C/min using an external heater, and then N
A mixed gas with a mixing molar ratio of 2 gases and water vapor of 0.8 = 0.2 was flowed at a rate of 10 g/min, activated for 30 minutes, and then cooled, resulting in a carbon content of 90% by weight and bulk density. An activated carbon porous body having a specific surface area of 0.14 g/cm3 and 1200 m2/g was obtained.
［不織布の製造コ
ポリプロピレン９２重量％、比較例２のポリエチレンテ
レフタレート５重量％と無水マレイン酸グラフトポリプ
ロピレン（マレイン化率３重量％）３重量％を同時に押
出機にて２８０℃で混練し、厚さ３０μｍのインフレフ
ィルムを成形した。[Production of nonwoven fabric 92% by weight of copolypropylene, 5% by weight of polyethylene terephthalate from Comparative Example 2, and 3% by weight of maleic anhydride grafted polypropylene (maleation rate: 3% by weight) were simultaneously kneaded at 280°C in an extruder to obtain a thickness of A 30 μm blown film was molded.
このフィルムを、エレクトレット化装置に供給し、印加
電圧１２ＫＶ（直流）、電極間隔２７ｍ■、コロナ放電
板の滞留時間０．８秒でエレクトレット化を行なった。This film was supplied to an electretization apparatus, and electretization was carried out at an applied voltage of 12 KV (DC), an electrode spacing of 27 m, and a residence time of corona discharge plate of 0.8 seconds.
得られたエレクトレット化フィルムを、加熱ロール温度
１１０−〜１２０℃、長手方向の延伸倍率約６〜８倍で
ロール延伸し、厚味１０〜２０μｍの延伸フィルムとし
た。The obtained electret film was roll-stretched at a heating roll temperature of 110 to 120°C and a stretching ratio of about 6 to 8 times in the longitudinal direction to obtain a stretched film having a thickness of 10 to 20 μm.
次に、延伸エレクトレットフィルムを、針山状ロールで
網目状に解繊し、ドラムに巻取った。Next, the stretched electret film was defibrated into a mesh shape using a needle roll and wound onto a drum.
この解繊フィルムを、反毛根で網目状の結節点を引き裂
き、カッターにて繊維長２０〜５０ｍｍに切断した。This defibrated film was torn at the network-like knot points with a hair root, and cut into fiber lengths of 20 to 50 mm with a cutter.
得られた小繊維（ステーブル繊維）をウェッブ・フォー
ミングφマシンに供給してウェッブに成形し、ニードル
パンチングして、フィルタ目付型量３００ｇ／ｍ 、
厚み５市のフィルタ材を得た。The obtained small fibers (stable fibers) are fed to a web forming φ machine, formed into a web, and needle punched to form a filter with a fabric weight of 300 g/m2,
A filter material with a thickness of 5 cm was obtained.
［積層フィルタの製造］
上記活性炭素多孔体から縦１０ｃｍ、横１０ｃｍ、厚さ
５ ＋ｎの板を切り出し、該板にボール盤で５關φの穴
を１４４個開けた。一方、上記不織布から１０ｃｆｌＩ
ｘ１０ＣＩＩ＋のシートを切り出した。この不織布層と
、上記活性炭素多孔体板とを重ね合わせ、それを２０
ｇ ／ ｍ ２のポリプロピレン不織布製の袋に入れた
後、４周を溶断ヒートシールしてフィルタを作製した。[Manufacture of laminated filter] A plate measuring 10 cm long, 10 cm wide and 5 + n thick was cut out from the activated carbon porous body, and 144 holes of 5 mm diameter were drilled in the plate using a drill press. On the other hand, 10cflI from the above nonwoven fabric
A x10CII+ sheet was cut out. This nonwoven fabric layer and the activated carbon porous plate were superimposed and
After putting it in a bag made of polypropylene nonwoven fabric of g/m 2 , the four circumferences were melted and heat-sealed to produce a filter.
このフィルタを用い、以下に示すように性能評価を行な
った。Using this filter, performance evaluation was performed as shown below.
［性能評価］
■集塵効率
チャンバー（内部寸法１ｍＸ１ｍＸ３ｍ）と、このチャ
ンバーに連結される排気管内に配設されるフィルタホル
ダと、このフィルタホルダの上・下流側おのおのに配設
される１対の粉塵計および１対の圧力計と、チャンバー
内の空気を排気管を介して外部に排出する送風機とを備
える装置を用いて集塵効率を測定した。[Performance evaluation] ■A dust collection efficiency chamber (internal dimensions 1m x 1m x 3m), a filter holder installed in the exhaust pipe connected to this chamber, and a pair of filters installed above and downstream of this filter holder. Dust collection efficiency was measured using a device equipped with a dust meter, a pair of pressure gauges, and a blower that exhausts air inside the chamber to the outside through an exhaust pipe.
ＤＩ定は以下の手順で行なった。DI determination was carried out using the following procedure.
フィルタホルダ内にフィルタを装着した後、チャンバー
内の煙草の煙を導入する。次に送風機を駆動し、チャン
バー内の煙を含んだ空気を５０国／秒の速度で排気管を
介して排出し、上・下流側の粉塵計により粉塵濃度を測
定する。After installing the filter in the filter holder, cigarette smoke is introduced into the chamber. Next, the blower is driven to exhaust the smoke-laden air inside the chamber through the exhaust pipe at a rate of 50 km/sec, and the dust concentration is measured using dust meters on the upstream and downstream sides.
なお粉塵計としては、柴田化学機械工業■製デジタル粉
塵計Ｐ−５型を用い、光散乱方式に基づき相対質量濃度
を求める。As a dust meter, a digital dust meter P-5 model manufactured by Shibata Kagaku Kikai Kogyo ■ is used, and the relative mass concentration is determined based on a light scattering method.
集塵効率は下記式により算出する。Dust collection efficiency is calculated using the following formula.
Ｃ１ｎ−Ｃｏｕｔ
集塵効率−Ｘ１００ （％）
ｌｎ
なお式中Ｃ１ｎはフィルタ上流側の粉塵濃度（ｎｇ／ｍ
２）であり、フィルタ下流側の粉塵濃度（ｍｇ／ｍ２）
である。C1n-Cout Dust collection efficiency-X100 (%) ln In the formula, C1n is the dust concentration on the upstream side of the filter (ng/m
2), and the dust concentration on the downstream side of the filter (mg/m2)
It is.
■圧力損失
上記集塵効率で使用した装置でフィルタの上流側および
下流側の圧力計により気圧を測定し、その気圧差を圧力
損失（ｌＩＩＩＨ２０）とする。(2) Pressure loss The atmospheric pressure is measured using the pressure gauges on the upstream and downstream sides of the filter using the device used in the above dust collection efficiency, and the difference in atmospheric pressure is defined as the pressure loss (lIIIH20).
■脱臭率
チャンバー内に空気がリサイクルするように導管を循環
式に設ける。チャンバー内にアセトアルデヒドを濃度が
１００ ｐｐｍになるよう導入した後、送風機の回転を
開始し、チャンバー内の空気を導管を介して循環させる
。その後３０分経過後のチャンバー内のアセトアルデヒ
ドの濃度をガス検知管により求める。■Deodorization rate A conduit is provided in a circulating manner to recycle air within the chamber. After introducing acetaldehyde into the chamber to a concentration of 100 ppm, the blower is started to circulate the air in the chamber through the conduit. After 30 minutes have elapsed, the concentration of acetaldehyde in the chamber is determined using a gas detection tube.
脱臭率は下記式より算出する。The deodorization rate is calculated using the following formula.
脱臭率−（初期濃度−３０分経過後の濃度）／初期濃度
Ｘ１００ （％）
以上の測定結果を表１に示す。Deodorization rate-(initial concentration-concentration after 30 minutes)/initial concentration X100 (%) The above measurement results are shown in Table 1.
実施例２
炭素多孔体として嵩密度が０．１９ｇ／ａｓ３のものを
用いる以外は実施例１と同様にフィルタを製造し、この
フィルタの性能評価を行なった。評価結果を表１に示す
。Example 2 A filter was manufactured in the same manner as in Example 1 except that a porous carbon material having a bulk density of 0.19 g/as3 was used, and the performance of this filter was evaluated. The evaluation results are shown in Table 1.
比較例１
実施例１で用いた炭素多孔体の代わりに、市販のポリウ
レタン系添着活性炭（嵩密度０．１ｇ／ｃＩＴ＋３、厚
さ５關）を用いる以外は実施例１と同様にフィルタを製
造し、このフィルタの性能評価を行なった。評価結果を
表１に示す。Comparative Example 1 A filter was manufactured in the same manner as in Example 1, except that commercially available polyurethane-based impregnated activated carbon (bulk density: 0.1 g/cIT+3, thickness: 5 mm) was used instead of the carbon porous body used in Example 1. The performance of this filter was evaluated. The evaluation results are shown in Table 1.
比較例２
実施例１で用いた炭素多孔体の代わりに、市販の活性炭
素繊維（原料：ポリアクリロニトリル、嵩密度０．０４
ｇ／ｃＩＴ＋３、厚さ３ｍｍ）を用いる以外は実施例１
と同様にフィルタを製造し、このフィルタの性能評価を
行なった。評価結果を表１に示す。Comparative Example 2 Instead of the carbon porous material used in Example 1, commercially available activated carbon fiber (raw material: polyacrylonitrile, bulk density 0.04
Example 1 except that g/cIT+3, thickness 3mm) was used.
A filter was manufactured in the same manner as above, and the performance of this filter was evaluated. The evaluation results are shown in Table 1.
表１Table 1
Claims (2)
嵩密度０．０５〜０．５ｇ／ｃｍ＾３、炭素含有率８５
〜９５重量％および比表面積５００ｍ＾２／ｇ以上の活
性化炭素多孔体からなる活性化炭素多孔体層と、 ポリオレフィン繊維またはポリエステル繊維を主成分と
してなる不織布層とが積層されていることを特徴とする
フィルタ用積層体。(1) The phenolic resin foam is carbonized and activated,
Bulk density 0.05-0.5g/cm^3, carbon content 85
An activated carbon porous material layer consisting of an activated carbon porous material having ~95% by weight and a specific surface area of 500 m^2/g or more, and a nonwoven fabric layer mainly composed of polyolefin fibers or polyester fibers are laminated. A laminate for filters.
とを特徴とする請求項１記載のフィルタ用積層体。(2) The filter laminate according to claim 1, wherein the nonwoven fabric layer is made of electret.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1060547A JP2732652B2 (en) | 1989-03-13 | 1989-03-13 | Filter laminate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1060547A JP2732652B2 (en) | 1989-03-13 | 1989-03-13 | Filter laminate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02241509A true JPH02241509A (en) | 1990-09-26 |
| JP2732652B2 JP2732652B2 (en) | 1998-03-30 |
Family
ID=13145424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1060547A Expired - Lifetime JP2732652B2 (en) | 1989-03-13 | 1989-03-13 | Filter laminate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2732652B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5980616A (en) * | 1993-02-16 | 1999-11-09 | Donaldson Company, Inc. | Filter media for preventing carbon migration |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10701910B2 (en) * | 2018-07-16 | 2020-07-07 | Chin-San Hsieh | Structure of aquarium filter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6394527A (en) * | 1986-10-08 | 1988-04-25 | オムロン株式会社 | Electromagnetic relay |
| JPS63222080A (en) * | 1987-03-10 | 1988-09-14 | 東レ株式会社 | Manufacture of carbon fiber porous body |
-
1989
- 1989-03-13 JP JP1060547A patent/JP2732652B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6394527A (en) * | 1986-10-08 | 1988-04-25 | オムロン株式会社 | Electromagnetic relay |
| JPS63222080A (en) * | 1987-03-10 | 1988-09-14 | 東レ株式会社 | Manufacture of carbon fiber porous body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5980616A (en) * | 1993-02-16 | 1999-11-09 | Donaldson Company, Inc. | Filter media for preventing carbon migration |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2732652B2 (en) | 1998-03-30 |
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