J. Inst. Electrostat. Jpn.

論

静電気学会誌, 29, 2 (2005) 130-136文ౣ⩄㔚ߦࠃࠆ PP ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߩ
ౣ⩄㔚ߦࠃࠆ PP ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߩ
ࠛ࡟ࠢ࠻࡟࠶࠻ᕈ⢻ᓳᵴߣᲕ⩶ലᨐߦ㑐ߔࠆ⎇ⓥࠛ࡟ࠢ࠻࡟࠶࠻ᕈ⢻ᓳᵴߣᲕ⩶ലᨐߦ㑐ߔࠆ⎇ⓥ
TUN LWIN 㧘㜞ፉ๺ೣ 㧘᩵ㅴม 㧘᳓㊁ᓆᐕ  㧘㜞ፉ๺ೣ᦬  ᣣฃઃ㧧ᐕ  ᦬  ᣣฃℂ
TUN 
LWIN
㧘᩵ㅴม
㧘᳓㊁ᓆ
 ᐕ  ᦬  ᣣฃઃ㧧 ᐕ  ᦬  ᣣฃℂ

Recovery of Filtration Efficiency and Sterilization Effect of Polypropylene (PP)
Recovery ofFiltration
Efficiency
and Sterilization
Effect of
Polypropylene (PP)Electret
Filterby Recharging
with DC Corona
Discharge
Electret Filter by Recharging with DC Corona Discharge
TUN LWIN*, Kazunori TAKASHIMA*, Shinji KATSURA* and Akira MIZUNO***
September 30, 2004;
AcceptedKATSURA
February 10, 2005)(Received
TUN LWIN*, Kazunori
TAKASHIMA, Shinji
and Akira MIZUNO*(Received September 30, 2004; Accepted February 10, 2005)

The usage of electret materials in general ventilation filters is growing rapidly. Polarized fibers create
internal
electric
that materials
significantly
increasesventilation
the deposition
aerosolparticleson filter
fibers.fibers
Therefore,
The usageof field
electretin generalfiltersof is
growing
rapidly.
Polarized
createhighcollection
efficiency
canbeachievedatamoderate
flow
resistancelevel.
These
fibrouselectretfilters
internal electric field that significantly increases the deposition of aerosol particles on filter fibers. Therefore,
have
been utilized
in medical
vacuumcleaner, flow
exhaustfilters,level.
vehiclecabinfilters,
roomfilters
airhigh collection
efficiency
can bemasks,
achieved
at a moderate
resistanceThese
fibrouselectretconditioner
air cleaner,etc. Althoughelectret cleaner,filters are
made offibersvehicle
with extremely
low electricalhave been andutilizedin medical
masks, vacuum
exhaustfilters,
cabin filters,
room airconductivity,
theyair
cancleaner,lose theirwhenelectret
exposedto someor atmosphericparticles,
conditioner andetc.charges
Althoughfilters
are chemicals
made of fibers
with extremely
lowespeciallyelectricalincase of highhumidity,paper
the experimental
results
obtainedon theconductivity,
they
can lose hightheir temperature.
charges whenThis
exposedto presents
some chemicals
or atmosphericparticles,
especially
recoveryof highelectretfilter’shighefficiency
by recharging
withpresents
dc corona
Immersionin 2-Propanolin case of
humidity,
temperature.
This paper
the discharge.
experimental
results obtainedon theseverely
filtration
efficiencyof electretwith
filters.
experimental
indicatedthat therecoveryeliminatedof electretthe
filter’s
efficiency
by recharging
dc Thecoronadischarge. results
Immersionin 2-Propanol
coronarecharging
wasrecover theefficiency.
efficiencyresults
recovered
to almost
severelyeliminatedtheeffective
filtrationtoefficiency
of filtrationelectret filters.
The Theexperimental
indicatedthat its
theinitiallevel.
Furthermore,
it
was
also
examinedthesterilization
effectduringrecharging
theelectretPP
filter.
corona recharging was effective to recover the filtration efficiency. The efficiency recovered to almost
itsIn
this level.
experiment,
Saccharomyces(Yeast)and Bacillus
Subtilis
spores havebeen usedasinitialFurthermore,
it was also Cerevisiae
examined thesterilization
effect during
recharging
the electret
PP filter.
It was haveobserved
bio-indicators.
Initial Saccharomyces
concentration ofCerevisiaethese indicators
106CFU/ml.
In this experiment,(Yeast) was
and about
Bacillus
Subtilis spores
been that
usedtheas6
Saccharomyces(Yeast) was
within one
and10thespores of
Bacillus
Subtilis
CFU/ml.
It wasobserved
thatwere
thebio-indicators. Cerevisiae
Initial concentrationof sterilized
these indicators
washourabout
sterilized
within threehours byDC corona
recharging.
Saccharomyces
Cerevisiae(Yeast)was sterilized
within one hour and the spores of Bacillus Subtilis weresterilized within three hours by DC corona recharging.
㧚 ߪߓ߼ߦ
㧚
ߪߓ
߼ߦ
⃻࿷㧘
㕒㔚⊛ᓸ☸ሶ᝝㓸ᯏ᭴ࠍ஻߃ߚⓨ᳇ᵺൻࠪࠬ࠹ࡓ

ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߪࡐ࡝ࡊࡠࡇ࡟ࡦ 22 ߥߤߩࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߪࡐ࡝ࡊࡠࡇ࡟ࡦ 22 ߥߤߩࡐ࡝ࠝ࡟ࡈࠖࡦ♽㜞ಽሶ❫⛽ߦ㔚⩄ࠍ㕒㔚᳇⊛ߦᵈ౉ߔ⃻࿷㧘㕒㔚⊛ᓸ☸ሶ᝝㓸ᯏ᭴ࠍ஻߃ߚⓨ᳇ᵺൻࠪࠬ࠹ࡓ
ߪᐢߊ↪޿ࠄࠇߡ޿ࠆ㧚ࠛ࡟ࠢ࠻࡟࠶࠻❫⛽ߢ૞⵾ߒߚࡈ
ߪᐢߊ↪޿ࠄࠇߡ޿ࠆ㧚ࠛ࡟ࠢ࠻࡟࠶࠻❫⛽ߢ૞⵾ߒߚࡈ
ࠖ࡞࠲ߪ㜞ല₸߆ߟૐ࿶ജ៊ᄬߩᓸ☸ሶ᝝㓸ࠍ㜞㔚࿶㔚ࡐ࡝ࠝ࡟ࡈࠖࡦ♽㜞ಽሶ❫⛽ߦ㔚⩄ࠍ㕒㔚᳇⊛ߦᵈ౉ߔࠆߎߣߦࠃࠆ૞⵾ߐࠇࠆ㧚
ߘߩᣇᴺߣߒߡߪਇ❱Ꮣ❫⛽ࡈࠆߎߣߦࠃࠆ૞⵾ߐࠇࠆ㧚
ߘߩᣇᴺߣߒߡߪਇ❱Ꮣ❫⛽ࡈࠖ࡞࠲ࠍࠦࡠ࠽᡼㔚ߢ⩄㔚ߔࠆᣇᴺ߇ᐢߊ೑↪ߐࠇߡ޿ࠖ࡞࠲ߪ㜞ല₸߆ߟૐ࿶ജ៊ᄬߩᓸ☸ሶ᝝㓸ࠍ㜞㔚࿶㔚Ḯ㧘㔚ᭂࠪࠬ࠹ࡓߥߤࠍ↪޿ߕߦታ⃻น⢻ߢ޽ࠅ㧘৻⥸ⓨḮ㧘㔚ᭂࠪࠬ࠹ࡓߥߤࠍ↪޿ߕߦታ⃻น⢻ߢ޽ࠅ㧘৻⥸ⓨ᳇ᷡᵺࡈࠖ࡞࠲ߣߒߡߩ೑↪߇ᕆㅦߦ᜛ᄢߒߡ޿ࠆ㧚Ꮺ㔚ࠖ࡞࠲ࠍࠦࡠ࠽᡼㔚ߢ⩄㔚ߔࠆᣇᴺ߇ᐢߊ೑↪ߐࠇߡ޿ࠆ㧚ࡈࠖ࡞࠲ᕈ⢻߳ߩᓇ㗀࿃ሶߣߒߡࡈࠖ࡞࠲ߩኒᐲ㧔⋡ࠆ㧚ࡈࠖ࡞࠲ᕈ⢻߳ߩᓇ㗀࿃ሶߣߒߡࡈࠖ࡞࠲ߩኒᐲ㧔⋡ઃ㧕㧘❫⛽⋥ᓘ෸߮ࠟࠬߩಣℂㅦᐲ㧔㕙ㅦᐲ㧕ߥߤ߇޽ࠅ㧘᳇ᷡᵺࡈࠖ࡞࠲ߣߒߡߩ೑↪߇ᕆㅦߦ᜛ᄢߒߡ޿ࠆ㧚Ꮺ㔚ߒߡಽᭂߒߚࡈࠖ࡞࠲❫⛽ߪౝㇱ㔚⇇ࠍ⊒↢ߔࠆߚ߼㧘ⓨߒߡಽᭂߒߚࡈࠖ࡞࠲❫⛽ߪౝㇱ㔚⇇ࠍ⊒↢ߔࠆߚ߼㧘ⓨ᳇ਛࠍᶋㆆߔࠆᓸ☸ሶࠍ‛ℂ⊛ߥᘠᕈജߥࠄ߮ߦ᜛ᢔ᝝

ઃ㧕㧘❫⛽⋥ᓘ෸߮ࠟࠬߩಣℂㅦᐲ㧔㕙ㅦᐲ㧕ߥߤ߇޽ࠅ㧘߹ߚ㧘ࡈࠖ࡞࠲ࠍᏪ㔚ߔࠆ⩄㔚ᣇᴺߔߥࠊߜ᡼㔚ᒻᘒߩ㆑߹ߚ㧘ࡈࠖ࡞࠲ࠍᏪ㔚ߔࠆ⩄㔚ᣇᴺߔߥࠊߜ᡼㔚ᒻᘒߩ㆑㧚޿߇ࡈࠖ࡞࠲ᕈ⢻ߦᓇ㗀ߔࠆߎߣ߽⸃᣿ߐࠇߡ޿ࠆ

᳇ਛࠍᶋㆆߔࠆᓸ☸ሶࠍ‛ℂ⊛ߥᘠᕈജߥࠄ߮ߦ᜛ᢔ᝝
㓸ߦട߃㧘㕒㔚᳇ജߦࠃࠅ᝝㓸ߢ߈ࠆߚ߼㧘ૐ޿࿶ജ៊ᄬ
㓸ߦട߃㧘㕒㔚᳇ജߦࠃࠅ᝝㓸ߢ߈ࠆߚ߼㧘ૐ޿࿶ജ៊ᄬ
㧚ߎߩߚ߼㧘ࠛ࡟ࠢ࠻࡟࠶࠻
ߢ㜞᝝㓸ല₸߇ᓧࠄࠇࠆ

޿߇ࡈࠖ࡞࠲ᕈ⢻ߦᓇ㗀ߔࠆߎߣ߽⸃᣿ߐࠇߡ޿ࠆ
㧚ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߩ᝝㓸ല₸ߪࡈࠖ࡞࠲❫⛽ߩࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߩ᝝㓸ല₸ߪࡈࠖ࡞࠲❫⛽ߩ㔚⩄ߦଐሽߒߡ߅ࠅ㧘ࡈࠖ࡞࠲❫⛽ߦᏪ㔚ߐࠇߚ㔚⩄ߩ቟ߢ㜞᝝㓸ല₸߇ᓧࠄࠇࠆ   㧚ߎߩߚ߼㧘ࠛ࡟ࠢ࠻࡟࠶࠻
ࡈࠖ࡞࠲ߪࠛࠕࠦࡦ㧘ࡑࠬࠢ㧘ⓨ᳇ᷡᵺᯏ㧘᝹㒰ᯏߩឃ᳇ࡈࠖ࡞࠲ߪࠛࠕࠦࡦ㧘ࡑࠬࠢ㧘ⓨ᳇ᷡᵺᯏ㧘᝹㒰ᯏߩឃ᳇ࡈࠖ࡞࠲ߥߤߣߒߡᐢߊ೑↪ߐࠇߡ޿ࠆ㧚㔚⩄ߦଐሽߒߡ߅ࠅ㧘ࡈࠖ࡞࠲❫⛽ߦᏪ㔚ߐࠇߚ㔚⩄ߩ቟ቯᕈ߇㊀ⷐߢ޽ࠆߚ߼㧘ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߪᭂ߼ߡ
ቯᕈ߇㊀ⷐߢ޽ࠆߚ߼㧘ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߪᭂ߼ߡ
㔚᳇વዉᕈߩૐ޿❫⛽ߢ⵾ㅧߐࠇߡ޿ࠆ㧚ࠛ࡟ࠢ࠻࡟࠶࠻

ࡈࠖ࡞࠲ߥߤߣߒߡᐢߊ೑↪ߐࠇߡ޿ࠆ㧚㔚᳇વዉᕈߩૐ޿❫⛽ߢ⵾ㅧߐࠇߡ޿ࠆ㧚ࠛ࡟ࠢ࠻࡟࠶࠻
ࡈࠖ࡞࠲ߪㅢᏱⓨ᳇ਛߢᶋㆆߒߡ޿ࠆᓸ☸ሶߥߤߦኻߒ
ࡈࠖ࡞࠲ߪㅢᏱⓨ᳇ਛߢᶋㆆߒߡ޿ࠆᓸ☸ሶߥߤߦኻߒ
ߡߪ㕒㔚᳇᝝㓸ᯏ᭴ߦࠃࠅ㐳ኼ๮ߦ೑↪ߢ߈ࠆ߇㧘࠲ࡃࠦࠠ࡯ࡢ࡯࠼㧦ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲㧘ౣ⩄㔚㧘ㅒ㔚㔌㧘
Ვ⩶㧘ࠦࡠ࠽᡼㔚㧘㒰㔚ࠠ࡯ࡢ࡯࠼㧦ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲㧘ౣ⩄㔚㧘ㅒ㔚㔌㧘⼾ᯅᛛⴚ⑼ቇᄢቇࠛࠦࡠࠫ࡯Ꮏቇ ‫ ޥ‬ᗲ⍮⋵
Ვ⩶㧘ࠦࡠ࠽᡼㔚㧘㒰㔚⼾ᯅᏒᄤષ↸㔕㓴ࡩਐ㧝㧙㧝⼾ᯅᛛⴚ⑼ቇᄢቇࠛࠦࡠࠫ࡯Ꮏቇ
‫ ޥ‬ᗲ⍮⋵Departmentof Ecological Engineering, Toyohashi⼾ᯅᏒᄤષ↸㔕㓴ࡩਐ㧝㧙㧝
Universityof Technology,
1-1 Tempaku-cho,
Toyohashi
City,
Departmentof EcologicalEngineering,
Toyohashi‫ޥ‬441-8580
Japan
University ofTechnology, 1-1 Tempaku-cho, Toyohashi City,1
mizuno@eco.tut.ac.jp‫ޥ‬441-8580 Japan1
mizuno@eco.tut.ac.jpߡߪ㕒㔚᳇᝝㓸ᯏ᭴ߦࠃࠅ㐳ኼ๮ߦ೑↪ߢ߈ࠆ߇㧘࠲ࡃࠦᾍߦ฽߹ࠇࠆ᦭ᯏᕈࠟࠬߩ᥸㔺߿㧘นṁᕈᚑಽࠍๆ⌕ߒߚᾍߦ฽߹ࠇࠆ᦭ᯏᕈࠟࠬߩ᥸㔺߿㧘นṁᕈᚑಽࠍๆ⌕ߒߚ☸ሶߩ㜞᷷㜞Ḩᐲ᧦ઙߢߩ᝝㓸ᤨߦߪ㧘ࡈࠖ࡞࠲ߩ㔚⩄߇㧕
☸ሶߩ㜞᷷㜞Ḩᐲ᧦ઙߢߩ᝝㓸ᤨߦߪ㧘ࡈࠖ࡞࠲ߩ㔚⩄߇㧚ߘߩࠛㅦ߿߆ߦ㒰㔚ߐࠇࡈࠖ࡞࠲ߩᕈ⢻߇ഠൻߔࠆ
㧕
㧚ߘߩࠛㅦ߿߆ߦ㒰㔚ߐࠇࡈࠖ࡞࠲ߩᕈ⢻߇ഠൻߔࠆ
࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ࠍࠦࡠ࠽᡼㔚ߦߡౣ⩄㔚ߔࠆߎߣ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ࠍࠦࡠ࠽᡼㔚ߦߡౣ⩄㔚ߔࠆߎߣߢࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߩᕈ⢻߇ᓳᵴߢ߈ࠇ߫ࡈࠖ࡞
ߢࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߩᕈ⢻߇ᓳᵴߢ߈ࠇ߫ࡈࠖ࡞

再荷電による PP エレクトレットフィルタのエレクトレット性能復活と殺菌効果（TUN LWIN ら）

Activated Charcoal

DC High Voltage

Granular

Air Filter

131 (41)ࠆߚ߼‫⩄ࠍ࠲࡞ࠖࡈޔ‬㔚㨯ౣ⩄㔚ߔࠆ㑆ߪࠛࠕࡐࡦࡊࠍᱛ
߼‫ޔ‬ⓨ᳇ᓴⅣࠍߐߖߕ‫ޔ‬ኈེౝߩࠝ࠱ࡦỚᐲࠍ਄᣹ߐߖߚ㧚ࠦࡠ࠽᡼㔚ߦࠃࠆ⩄㔚ࠍ⚳ੌᓟߦ࠴ࡖࡦࡃ࡯ౝߩⓨ᳇ࠍᓴⅣߐߖࠝ࠱ࡦࠍಽ⸃ߒߚᓟࡈࠖ࡞࠲ࠍኈེ߆ࠄขࠅ಴

Air Pumpߒߚ㧚ౣ⩄㔚ታ㛎ᚻ㗅ߣߒߡߪ̖ Ԙല₸ࠍᓧࠆߚ߼㧘એ೨ߩ⎇ⓥ㧘ߢ߈ࠆߛߌ㜞޿᝝㓸ߢ೑↪ߒߚട࿶⩄㔚ⵝ⟎ࠍ↪޿ߡᧂ⩄㔚 22 ࡈࠖ࡞࠲ࠍട࿶ /2C ᧦ઙਅߢ⋥ᵹ

10 mm㜞㔚࿶㧔㨗8㧕ࠍ㧝ಽ㑆ශടߒ㜞ᕈ⢻ࠛ࡟ࠢ࠻࡟࠶࠻ࠍ
Sample Filter
࿑1

Grounded૞⵾ߒߚ㧚

Electrodeᧄታ㛎ߢ೑↪ߔࠆౣ⩄㔚ⵝ⟎

Fig. 1 Schematic Diagram of Recharging Reactor㧚ԙߘߩᓟ㧘૞⵾ߒߚࠛ࡟ࠢ࠻࡟࠶࠻ 22 ࡈࠖ࡞࠲ߩ㒰㔚ࠍⴕ߁ߚ߼㧘ࡈࠖ࡞࠲ࠍ ࡊࡠࡄࡁ࡯࡞ߦᶐߒ㧘⥄ὼੇ῎ߐߖߚ㧚ࡈࠖ࡞࠲ࠍචಽߦੇ῎ߐߖߚᓟ㧘࿑  ߦ␜ߔౣ⩄㔚ⵝ⟎ߢᄢ᳇࿶᧦ઙਅߩ⋥ᵹࠦࡠ࠽᡼㔚ߢ㧝ಽ࠲ࠍౣ೑↪ߢ߈㧘ࡈࠖ࡞࠲ߩኼ๮ࠍᑧ㐳ߢ߈ࠆߣ⠨߃ᧄታ㑆ౣ⩄㔚ߒߚ㧚㛎ࠍⴕߞߚ㧚Ԛᧂ⩄㔚ࡈࠖ࡞࠲㧘ട࿶⩄㔚ߢ૞ᚑߒߚࠛ࡟ࠢ࠻

߹ߚ㧘ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߪⓨ᳇ਛߢᶋㆆߒߡ޿ࠆ

࡟࠶࠻ࡈࠖ࡞࠲㧘㒰㔚ߒߡᕈ⢻ࠍഠൻߐߖߚࡈࠖ࡞࠲㧘ౣ⢩ሶ㧘ࡃࠢ࠹࡝ࠕ㧘࠙ࠖ࡞ࠬ㧘⩶㘃ߥߤࠍࡈࠖ࡞࠲⴫㕙ߦ⩄㔚ߒߚࡈࠖ࡞࠲ߩᕈ⢻ ᝝㓸ല₸ ࠍ᷹ቯߒ㧘ߘࠇߙࠇߩ

᝝㓸ߢ߈ࠆ߇㧘Ვ⩶߹ߢߪߢ߈ߥ޿㧚৻ᣇ㧘᡼㔚ࡊ࡜࠭ࡑ⚿ᨐࠍᲧセߒߡౣ⩄㔚ߒߚߣ߈ߦࡈࠖ࡞࠲ߩᕈ⢻߇ᓳᵴߦࠃࠅ↢ᚑߐࠇࠆ 1* ࡜ࠫࠞ࡞߿ࠝ࠱ࡦߥߤߩᵴᕈ⒳ߦࠃ

ߢ߈ࠆ߆ߤ߁߆⏕⹺ߒߚ㧚ࠆ⩶⚦⢩⤑ߩ⎕უ߿ࡊ࡜࠭ࡑߦࠃࠆࠗࠝࡦⴣ⓭ߥߤߢᲕࡈࠖ࡞࠲ᕈ⢻ ᝝㓸ല₸ ߪ㧘ቶౝᓸ☸ሶࠍኻ⽎ߦߒߡࡈ⩶ലᨐ߇ᓧࠄࠇࠆߎߣ߇ႎ๔ߐࠇߡ޿ࠆ 㧘 㧚ߒߚ߇ߞߡ㧘ࠖ࡞࠲ࠍㅢㆊߔࠆ೨ߣㅢㆊߒߚᓟߩᓸ☸ሶᢙࠍ࠳ࠬ࠻ࠞ

ࡈࠖ࡞࠲ࠍౣ⩄㔚ߔࠆ㓙㧘ࠦࡠ࠽᡼㔚ߦࠃࠅ↢ᚑߐࠇࠆࠝ࠙ࡦ࠲ ࠳ࡦ⑼ቇ  ߦߡ⸘᷹ߒ㧘ࡈࠖ࡞࠲ㅢㆊ೨ߣ

࠱ࡦߥߤߩ㉄⚛࡜ࠫࠞ࡞ߦࠃࠅ⢩ሶ㧘࠙ࠖ࡞ࠬ㧘⩶㘃ߥߤㅢㆊᓟߩᓸ☸ሶᢙߩᲧ߆ࠄ⹏ଔߒߚ㧚⹜ᢱࡈࠖ࡞࠲ࠍㅢㆊ

߇ઃ⌕ߒߚࡈࠖ࡞࠲ߩᲕ⩶߽ᦼᓙߢ߈ࠆߣ੍ᗐߐࠇࠆ㧚ߘߔࠆ㘑ㅦߪᾲ✢ᑼ㘑ㅦ⸘ 6GUVQ8 ߦߡ⸘᷹ߒ㧘࿶ജߩߚ߼㧘ࡈࠖ࡞࠲ౣ⩄㔚᧦ઙߢߩࠦࡠ࠽᡼㔚߇Ვ⩶ലᨐࠍ

៊ᄬߪࡑࡁࡔ࡯࠲ߢ᳞߼ߚ㧚ࡈࠖ࡞࠲ߩ㕙ㅦᐲߪࡈࠖ࡞࠲

᦭ߔࠆ߆ߤ߁߆߽ᬌ⸛ߒߚ㧚ࠍㅢࠆⓨ᳇ߩᵹ㊂ߣࡈࠖ࡞࠲ߩᢿ㕙ⓍߩᲧ߆ࠄ▚಴ߒߚ㧚ᧄታ㛎ߢ␜ߒߚߘࠇߙࠇߩࡈࠖ࡞࠲ߩ᝝㓸ല₸ߪ㧘ቶౝⓨ ታ 㛎 ᣇ ᴺ ෸ ߮ ⵝ ⟎᳇ࠍ .OKP ߢๆᒁߒ㕙ㅦᐲ EOUGE㧘࿶៊ 2C ߢ⹏ଔߒߚ᝝㓸ല₸ߢ޽ࠆ㧚ౣ⩄㔚ታ㛎ᣇᴺ෸߮ታ㛎ⵝ⟎ࡈࠖ࡞࠲߇‛ℂ⊛ߥ៊்ࠍฃߌࠆ߹ߢౣ೑↪ߒ㧘ࡈࠖ࡞࠲ߩኼ๮ࠍࠃࠅ㐳ߊߔࠆߎߣࠍ⋡⊛ߣߒߡ㧘ൻቇ‛⾰߿࠲

Ვ⩶ታ㛎ᣇᴺࡃࠦᾍߩࠃ߁ߥ☸ሶߥߤߩๆ⌕ߢᕈ⢻߇ૐਅߒߚࠛ࡟ࠢ

ࡈࠖ࡞࠲ࠍౣ⩄㔚ߒߚߣ߈ߩᲕ⩶ലᨐࠍ⹏ଔߔࠆߚ߼㧘࠻࡟࠶࠻ࡈࠖ࡞࠲ ഠൻߒߚࡈࠖ࡞࠲ ࠍ㧘ታ↪࡟ࡌ࡞ߩᄢ

ಣ ℂ ኻ ⽎ ⩶ ߣ ߒ ߡ ࠗ ࡯ ࠬ ࠻ ⩶ 5CEEJCTQO[EGU %GTGXK᳇࿶ࠦࡠ࠽⩄㔚ⵝ⟎ߢࡈࠖ࡞࠲ᕈ⢻ᓳᵴ߇ߢ߈ࠆ߆ߤ߁

UKCG ߣࠝ࠱ࡦߦኻߔࠆ⠴ᕈߩ㜞޿ᨗ⨲⩶⢩ሶ㧔$CEKNNWU

߆ࠍᬌ⸛ߒߚ㧚

5WDVKNKU5RQTGU㧕 ࠍ↪޿ߡታ㛎ࠍⴕߞߚ㧚ౣ⩄㔚ߔࠆࡈࠖ࡞࠲ߩౣ⩄㔚ⵝ⟎ࠍ࿑  ߦ␜ߔ㧚ౣ⩄㔚ⵝ⟎ߪ᡼㔚

22 ࡈࠖ࡞࠲ߪ⇹᳓ᕈߢ޽ࠆߚ߼⩶ᶧࠍṢਅߒߡ㘑ੇߐߖ㔚ᭂࠍធ࿾㔚ᭂߩ⴫㕙߆ࠄ OO ߩ૏⟎ߦ㊎㔚ᭂࠍ㈩⟎ߒࠆߎߣ߇࿎㔍ߢ޽ࠅ㧘ࡈࠖ࡞࠲ࠍౣ⩄㔚ߒߚᓟ㧘ࡈࠖ࡞࠲ߚࠦࡠ࠽᡼㔚ⵝ⟎ߢ޽ࠅ㧘ࡊ࡜ࠬ࠴࠶ࠢኈེߦ౉ࠇߚ߽ߩ

⴫㕙߆ࠄ⩶ࠍߪ߇ߒ⪭ߣߔߎߣ߿ࡈࠖ࡞࠲ߩౣ೑↪ߥߤߢ޽ࠆ㧚᡼㔚㔚ᭂߪᄖᓘ OO ߩࠬ࠹ࡦ࡟ࠬᵈ኿㊎  ᧄࠍߩ໧㗴ὐ߇޽ࠆߚ߼Ვ⩶ᬌ૕ࠍ૞ᚑߒࡃࠗࠝࠗࡦࠫࠤ

↪޿ߚ㧚࿑㧝ߦ␜ߔࠃ߁ߦᵈ኿㊎  ᧄࠍ OO ߩ㑆㓒ߢ ࡯࠲ߣߒߡ೑↪ߒߚ㧚Ვ⩶ᬌ૕ߪ⚂ EOEO ߩ 1*2 ࡈ೉ߦਗߴߡ⸳⟎ߒߚ߽ߩߢ޽ࠆ㧚ੑߟߩ೉ߩ㑆㓒߽ OO

ࠖ࡞ࡓ਄ߦ  ߩ⩶ᶧࠍṢਅߒ㧘ੇ῎ߐߖߚ߽ߩࠍ↪޿ߚ㧚ߢ޽ࠆ㧚ࡈࠖ࡞࠲ࠍౣ⩄㔚ߔࠆߣ߈ߪធ࿾㔚ᭂߩ਄ߦ⹜ᢱ

૞ᚑߐࠇߚᲕ⩶ᬌ૕ࠍ࿑  ߦ␜ߔౣ⩄㔚ⵝ⟎ߩធ࿾㔚

22 ࡈࠖ࡞࠲ࠍᝌ౉ߒ㧘⽶ᭂᕈߩ⋥ᵹ㜞㔚࿶ࠍශടߒߚ㧚ᭂߩਛᄩㇱߦ⟎߈㧘਄ߦౣ⩄㔚ߔࠆ 22 ࡈࠖ࡞࠲ࠍᝌ౉ߒ

ౣ⩄㔚ⵝ⟎ߦߪ☸⁁ᵴᕈ὇ጀ㧘ࠛࠕࡐࡦࡊ㧘ࡒ࡝ࡐࠕࠛ

ߡࠦࡠ࠽᡼㔚ߦߡౣ⩄㔚ࠍⴕߞߚ㧚ౣ⩄㔚ᓟ㧘↢ᚑߐࠇߚࠕࡈࠖ࡞࠲ࠍ⋥೉ߦធ⛯ߒߚⓨ᳇ᓴⅣⵝ⟎ࠍ⸳ߌ‫ޔ‬ౣ⩄㔚ࠝ࠱ࡦỚᐲࠍࠝ࠱ࡦᬌ⍮▤ߢ᷹ቯߒߚ㧚ߘߩᓟ࠴ࡖࡦࡃ࡯

ᤨߦ↢ᚑߔࠆࠝ࠱ࡦࠍಽ⸃ߒߚ㧚ߥ߅‫ޔ‬Ვ⩶ലᨐࠍᜬߚߖ

ౝߩࠝ࠱ࡦࠍ㧘࿑  ߦ␜ߔࠃ߁ߦࠛࠕࡐࡦࡊࠍ↪޿ߡ☸⁁

132 (42)

静電気学会誌

第 29 巻

第 2 号（2005）

Uncharged PP Filterᵴᕈ὇ߢಽ⸃ಣℂߒߚ㧚ಣℂᓟߩᲕ⩶ᬌ૕ࠍ ON ߩᷫ⩶

Sample Electret Filter (-50kV, 0.2MPa)᳓ࠍ౉ࠇߚ࠴ࡘ࡯ࡉߦ౉ࠇ⿥㖸ᵄᵞᵺེߦ  ಽ㑆᥸㔺ߔ
ߞߡᲕ⩶ലᨐࠍ⺞ߴߚ㧚↢⩶ᢙ᷹ቯᴺߣߒߡߪ㧘ᮡḰᐔ᧼⩶ᢙ᷹ቯᴺ㧔5VCPFCTF

2NCVG%QWPV㧕ߦࠃࠅࠦࡠ࠾࡯ᢙ %(7 ࠍࠞ࠙ࡦ࠻ߒ㧘↢⩶ᢙ⹏ଔࠍⴕߞߚ㧚ᧄታ㛎ߢ೑↪ߒߚኻ⽎⩶ᶧߩೋᦼỚᐲߪ
ࠗ࡯ࠬ࠻⩶ߩ႐ว⚂ %(7ON㧘ᨗ⨲⩶⢩ሶߩ႐ว⚂ %(7ON ߢታ㛎ࠍⴕߞߚ㧚߹ߚ㧘Ვ⩶⎇ⓥߦ߅޿ߡ↢⩶ᢙᷫዋߪᩴᢙߦࠃࠅ⹏ଔߔࠆߚ߼㧘ᑼ  ࠍ↪޿

Filtration Efficiency (%)ࠆߎߣߦࠃࠅ⩶ᶧࠍ૞ᚑߒߚ㧚ߘߩᓟ㧘↢⩶ᢙߩ᷹ቯࠍⴕ

100
90
80
70
60
50
40
30

ߡᷫዋ₸ࠍ᳞߼ߚ㧚߹ߚ㧘⩶ᢙ߇৻ᩴᷫዋߔࠆᤨ㑆㧔& ୯㧕Face Velocity=5.36cm/sec
Pressure Drop=15Pa

0.1

1Particle Diameter (µm)࿑ᧂ⩄㔚෸߮⥄૞ߩࠛ࡟ࠢ࠻࡟࠶࠻

ࠍᑼ㧔㧕ࠍ↪޿ߡ▚಴ߒߚ㧚

ಣℂ೨ߩ↢⩶ᢙ
ᷫዋᩴ㨇ᩴ㨉㧩NQI
ᑼ㧔1㧕
ಣℂᓟߩ↢⩶ᢙ

㧩ធ⸅ᤨ㑆(sec)ᷫዋᩴ(ᩴ)

Fig.2 Filtration Efficiency of Sample PP Filter䋮
450

ᑼ㧔㧕

㧚ታ㛎⚿ᨐ


22 ࡈࠖ࡞࠲ߩ᝝㓸ല₸⹜ᢱ 22 ࡈࠖ࡞࠲ߩᕈ⢻ᧄ⎇ⓥߢ೑↪ߒߚࡈࠖ࡞࠲ߪࡔ࡞࠻ࡉࡠ࡯⚜♻ᴺߦࠃࠅ૞⵾ߐࠇߚ 22 ࡈࠖ࡞࠲ߢ޽ࠆ㧚22 ࡈࠖ࡞࠲ߪෘߺ OO㧘

Corona Current (µA)

&୯

10



Without Filter

400

With Filter Only

350

With Filter+OHP Sheet

300
250
200
150
100

❫⛽⋥ᓘ ǴO㧘⋡ઃ IO ߩ߽ߩߢ޽ࠆ㧚ࡈࠖ࡞࠲ߩ

50

㕙Ⓧߪ⚂ EO ߢ޽ࠆ㧚ᧄታ㛎ߢ૶↪ߒߚᧂ⩄㔚ࡈࠖ࡞00࠲ߣട࿶⩄㔚ࡈࠖ࡞࠲ߩ᝝㓸ല₸ࠍ࿑  ߦ␜ߔ㧚ᧂ⩄㔚ࡈࠖ࡞࠲ߩ᝝㓸ല₸ߪ ǴO ߩ☸ሶߦኻߒ ⒟ᐲ㧘Ǵ

12

3 4 5 6 7 8Applied Voltage (-kV)

9 10 11O ߢ ⒟ᐲ㧘ǴO ߢ ⒟ᐲ㧘ǴO ߢ ⒟ᐲ㧘ǴO એ࿑਄ߢ ⒟ᐲߢ޽ߞߚ㧚ട࿶⩄㔚ࡈࠖ࡞࠲ߢߪ ǴO ߦ

Fig.3 Current-Voltage Characteristic㧚ౣ⩄㔚ⵝ⟎ߩ㔚ᵹ㔚࿶․ᕈ

ኻߒ 㧑⒟ᐲ㧘ǴO ߢ 㧑⒟ᐲߣߥࠅ㧘ǴO એ਄ߩ☸ሶߦኻߒ 㧑⒟ᐲߩ᝝㓸ല₸ࠍ␜ߒߚ㧚
Needle Electrodeౣ⩄㔚ⵝ⟎ߩ㔚ᵹ㔚࿶․ᕈ

࿑  ߦᧄታ㛎ߢ↪޿ߚౣ⩄㔚ⵝ⟎ߩᄢ᳇࿶᧦ઙਅߢ⽶ᭂᕈ⋥ᵹࠦࡠ࠽᡼㔚ࠍ↪޿ߡ⩄㔚ߒߚߣ߈ߩ㔚ᵹ㔚࿶․ᕈࠍ␜ߔ㧚ធ࿾㔚ᭂ⴫㕙߳ߩ 22 ࡈࠖ࡞࠲ߩᝌ౉᦭ή㧘Ვ⩶ታ㛎ߩ㓙ߦࡃࠗࠝࠗࡦࠫࠤ࡯࠲ߣߒߡ೑↪ߒߚᲕ⩶ᬌ
Back Discharge૕ 1*2 ࡈࠖ࡞ࡓ ࠍ 22 ࡈࠖ࡞࠲ߣ৻✜ߦᝌ౉ߒߚߣ߈ߩ
㔚ᵹ㔚࿶․ᕈࠍ␜ߔ㧚
22 ࡈࠖ࡞࠲ࠍធ࿾㔚ᭂ਄ߦᝌ౉ߒߡ⩄㔚ߒߚ႐ว㧘ශ࿑

22 ࡈࠖ࡞࠲ࠍ⩄㔚ߒߚߣ߈ߩㅒ㔚㔌ߩ᭽ሶട㔚࿶M8 ߆ࠄ᡼㔚߇㐿ᆎߒ㧘M8 ⒟ᐲ߆ࠄࠦࡠ࠽㔚㧔ශട㔚࿶ &%㧙M㨂㧘ࠡࡖ࠶ࡊ㧩EO㧕ᵹ߇ᕆỗߦ਄᣹ߒߡM8 એ਄ߢߪἫ⧎᡼㔚߇⊒↢ߒࡈࠖFig.4 Photo of PP Filter Occurring Back Discharge䋮࡞࠲߇⎕៊ߒߡߒ߹ߞߚ㧚ࡈࠖ࡞࠲ᝌ౉ήߒߩ႐วߦᲧߴ

(Applied Voltage DC -9.5kV, Gap=10cm)䋮

ࠆߣශട㔚࿶M8 ߆ࠄࡈࠖ࡞࠲ᝌ౉ήߒߩ႐วࠃࠅ߽

ᏱჇടߪߎߩㅒ㔚㔌ߦࠃࠆ߽ߩߢ޽ࠆ㧚㔚ᵹ߇⇣ᏱჇടߒߡ޿ࠆߎߣ߇ⷰኤߐࠇߚ㧚ߘߩߣ߈ߦ᠟

Ვ⩶ߩታ㛎ߢ೑↪ߒߚᲕ⩶ᬌ૕ 1*2 ࡈࠖ࡞ࡓ ࠍ 22 ࡈᓇߒߚ᡼㔚ߩ᭽ሶࠍ࿑  ߦ␜ߔ㧚᡼㔚㔚ᭂਅߩࡈࠖ࡞࠲ߩ

ࠖ࡞࠲ߣ৻✜ߦᝌ౉ߒߚߣ߈㧘᡼㔚㐿ᆎ㔚࿶ߪࡈࠖ࡞࠲ߩ

৻ㇱߦㅒ㔚㔌߇⊒↢ߒߡ޿ࠆߎߣ߇⏕⹺ߢ߈ߚ㧚㔚ᵹߩ⇣ߺߩ႐วߣห᭽M8 ⒟ᐲߢ޽ࠅ㧘M㨂߹ߢߪ᡼㔚ߒߦߊߊ㔚ᵹ୯ߪࡈࠖ࡞࠲ߩߺࠍᝌ౉ߒߚ႐วࠃࠅૐ߆ߞߚ㧚ߒ߆ߒ㧘M8 ߆ࠄࡈࠖ࡞࠲ߩߺߩ႐วߩ㔚ᵹ୯ߣ߶߷
หߓߦߥࠅM㨂ߩශട㔚࿶߆ࠄߪࡈࠖ࡞࠲ߩߺࠃࠅ㔚ᵹ୯ߩჇട߇⷗ࠄࠇ㧘M8 ߆ࠄߪㅒ㔚㔌߇ᒝߊ⊒↢ߒߡ޿ࠆߎߣ߇ⷰኤߢ߈ߚ㧚࿑  ߦᧂ⩄㔚 22 ࡈࠖ࡞࠲ߩߺࠍធ࿾㔚ᭂ਄ߦᝌ౉ߒߡ
ᄢ᳇࿶⽶ࠦࡠ࠽᡼㔚ߢ㧝ಽ㑆⩄㔚ߒߚᤨ㧘ශട㔚࿶ߦኻߔ

Filtration Efficiency (%)

再荷電による PP エレクトレットフィルタのエレクトレット性能復活と殺菌効果（TUN LWIN ら）

ࠆࡈࠖ࡞࠲ߩ᝝㓸ല₸ࠍ␜ߔ㧚ߎߩ⚿ᨐ߆ࠄ㧘ශട㔚࿶ߩ

100
95
90
85
80
75
70
65
60

0.3µm
0.5µm
1µm
6.5

਄᣹ߦᓥߞߡࡈࠖ࡞࠲ᕈ⢻߇ะ਄ߔࠆ߇㧘ㅒ㔚㔌߇⊒↢ߒ

7

7.5

8

8.5

9

9.5

10

Applied Voltage (-kV)ߡ޿ࠆM㨂ߢߩ⩄㔚ߢߪࡈࠖ࡞࠲ᕈ⢻߇ૐਅߒߡ޿ࠆ
ߎߣ߇⏕⹺ߢ߈ߚ㧚ᧄⵝ⟎ߢ৻⇟㜞޿᝝㓸ല₸ߪශട㔚࿶133 (43)࿑ශട㔚࿶ߦ߅ߌࠆ 22 ࡈࠖ࡞࠲ߩ᝝㓸ല₸M㨂ߩ⩄㔚ߢᓧࠄࠇߚ㧚ߘߩߣ߈ߩᕈ⢻ߪ㧘ǴO ߩ☸

Fig.5 Filtration Efficiency of PP Filterሶߦኻߒ 㧑એ਄㧘ǴO ߢ 㧑⒟ᐲ㧘ǴO ߢ 㧑એfor Various Applied Voltage䋮਄㧘ǴO એ਄ߩ☸ሶߦኻߒ 㧑ߢ޽ߞߚ㧚Sample Electret Filter (-50kV)
Charged PP Filter (-9kV)
After Immersion into 2-Propanol
Recharged Filter after Immersion (-9kV)⋥ᵹࠦࡠ࠽᡼㔚ࠍ↪޿ߚౣ⩄㔚ߦࠃࠆ 22 ࡈࠖ࡞࠲ߩࠛ࡟ࠢ࠻࡟࠶࠻ᕈ⢻ᓳᵴᧄ⎇ⓥߢߪ㧘⴫㕙㔚૏⸘ -5&㧙 ࠍ↪޿ߡ㧘ฦ⁁ᘒࡈࠖ࡞࠲ߩ㔚⩄㊂ߩᄌൻ߽⺞ߴߚ㧚ࡈࠖ࡞࠲ࠍធ࿾ߒߚᐔ
᧼㔚ᭂߦਸ਼ߖ‫⴫࠲࡞ࠖࡈޔ‬㕙߆ࠄ OO ߩ૏⟎ߢ⴫㕙㔚૏⸘ࠍࠬࠠࡖࡦߒߡࡈࠖ࡞࠲⴫㕙㔚૏ࠍ᷹ቯߒߚ㧚ࡈࠖ࡞࠲਄ߩ᷹ቯ૏⟎ߦࠃߞߡ⴫㕙㔚૏ߩᄌേ߇⷗ࠄࠇߚߚ߼㧘ࡈࠖ࡞࠲ਛᄩㇱߩ  ࡩᚲࠍ࡜ࡦ࠳ࡓߦ᷹ቯߒ㧘᷹ቯ୯ߩ▚ⴚᐔဋ୯ߣ⛘ኻᐔဋ୯ ⛘ኻ୯ߩᐔဋ ࠍ᳞߼ߚ㧚ߘࠇࠄߩ

Filtration Efficiency (%)ߢߩࡈࠖ࡞࠲⴫㕙㔚૏ࠍ᷹ቯߒ㧘㒰㔚࡮ౣ⩄㔚ߦࠃࠆ 22

100
95
90
85
80
75
70
65
60

⚿ᨐࠍ⴫  ߦ␜ߔ㧚ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲⴫㕙ߦᱜ⽶ਔ

0.1ᣇߩ㔚⩄߇ᬌ಴ߐࠇࠆ㧚ߘߩ⛘ኻᐔဋ୯ߪࠛ࡟ࠢ࠻࡟࠶࠻
ࡈࠖ࡞࠲ߩ᝝㓸ല₸ߣߩ⋧㑐߇㜞޿ 㧘 㧚ᧄታ㛎ߢ⹜ᢱߣߒߡ↪޿ߚട࿶⩄㔚ⵝ⟎ߢ㧝ಽ㑆⩄㔚ߒߚ㜞ᕈ⢻ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ ട࿶⩄㔚ࡈࠖ࡞࠲ ߩ⴫㕙㔚૏ߪ⩄㔚㕙 ⴫ ߢߪ⛘ኻᐔဋ୯ 8‫ⵣޔ‬㕙ߢߪ 8 ߢ޽ߞߚ㧚࿑ട࿶⩄㔚ࡈࠖ࡞࠲ࠍ ࡊࡠࡄࡁ࡯࡞ߦᶐߔߎߣߦࠃࠅ㧘

10ࡊࡠࡄࡁ࡯࡞ṁᶧߦᶐߒߚ

22 ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߩᕈ⢻ᓳᵴ
Fig. 6 Efficiency Recovery of PP Electret Filter
for Immersion in 2-Propanol䋮㒰㔚ࠍⴕ߁ߎߣߦࠃࠅ⛘ኻᐔဋ୯߇ᄢ߈ߊૐਅߒ‫ޔ‬ౣ⩄㔚ߦࠃࠅ਄᣹ߒߚ‫ޕ‬

1Particle Diameter (µm)ోߢߪߥ޿ߚ߼‫⩄ᧂޔ‬㔚ࡈࠖ࡞࠲ࠃࠅ㜞޿୯ߢ޽ߞߚߣ⠨߃ࠄࠇࠆ‫ޕ‬ࡈࠖ࡞࠲ߩ㒰㔚ࠍⴕ޿㧘ࡈࠖ࡞࠲ᕈ⢻ߩഠൻࠍ⺞ߴߚ㧚ߎ㒰㔚ࡈࠖ࡞࠲ࠍౣ⩄㔚ⵝ⟎ߢM㨂ߦߡ㧝ಽ㑆ౣ⩄㔚ߒߩࠃ߁ߦ⺞⵾ߒߚ⹜ᢱࠍ㒰㔚ࡈࠖ࡞࠲ߣ޿߁㧚㒰㔚ᓟ㧘࿑ߚߣ߈᝝㓸ല₸ߪ࿑  ߦ␜ߔࠃ߁ߦቶౝᓸ☸ሶ ǴO ߦ ߦ␜ߔౣ⩄㔚ⵝ⟎ߢ৻⇟㜞޿᝝㓸ല₸ࠍᓧࠄࠇߚM㨂ኻߒ 㧑⒟ᐲ㧘ǴO ߢ 㧑⒟ᐲ㧘ǴO એ਄ߩቶౝᓸ☸

ߦߡ㧝ಽ㑆ᄢ᳇࿶᧦ઙਅߢ㒰㔚ࡈࠖ࡞࠲ࠍౣ⩄㔚ߒߚ㧚ߘሶߦኻߒߡߪ ߇ᓧࠄࠇߚ㧚㒰㔚ߔࠆ೨ߩട࿶⩄㔚ࡈࠇߙࠇߩࡈࠖ࡞࠲ߩ᝝㓸ല₸ࠍ࿑  ߦ␜ߔ㧚㒰㔚ࡈࠖ࡞࠲ࠖ࡞࠲ߩᕈ⢻࡟ࡌ࡞ߣ߶ߣࠎߤหߓߦߥࠅ㧘㜞ᕈ⢻ࠛ࡟ࠢߩ᝝㓸ല₸ߪቶౝᓸ☸ሶ ǴO ߦኻߒ 㧑⒟ᐲ㧘ǴO࠻࡟࠶࠻ࡈࠖ࡞࠲ߩ࡟ࡌ࡞ߦ࿁ᓳߐࠇߚߎߣ߇⏕⹺ߢ߈ߢ 㧑⒟ᐲ㧘ǴO ߢ 㧑⒟ᐲ㧘ǴO ߢ ⒟ᐲ㧘ǴO એߚ㧚߹ߚ㧘ᧂ⩄㔚ࡈࠖ࡞࠲ࠍ㜞㔚࿶M㨂ߦߡ㧝ಽ㑆⩄㔚਄ߢ ߢ޽ߞߚ㧚ട࿶⩄㔚ࡈࠖ࡞࠲ࠃࠅ᣿ࠄ߆ߦૐਅ

ߒߚ႐วߩ᝝㓸ല₸ߦᲧߴࠆߣቶౝᓸ☸ሶ ǴO ߦኻߒߒߚ߇㧘࿑  ߦ␜ߔᧂ⩄㔚ࡈࠖ࡞࠲ߩ᝝㓸ല₸ߦᲧߴࠆߣ

㧑⒟ᐲ㧘ǴO ߦኻߒ 㧑એ਄᝝㓸ᕈ⢻߇ะ਄ߒߚ㧚߹ߛ㜞߆ߞߚ㧚ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ࠍ ࡊࡠࡄࡁ࡯

߹ߚ㧘ࡊࡠࡄࡁ࡯࡞ߩઍࠊࠅߦ⚐᳓߿⚐᳓ߢ⭯߼ߚᵞ࡞ߦᶐߒߚಣℂᤨ㑆ࠍ৻᥅߹ߢᑧ㐳ߒߡታ㛎ࠍⴕߞߚ߇㧘೷ṁᶧߥߤ߽↪޿ߡห᭽ߩ⹏ଔࠍⴕߞߚ߇㧘ࡊࡠࡄࡁ࡯

ഠൻߒߚࡈࠖ࡞࠲ߩ᝝㓸ല₸ߪ߶߷หߓߢ㧘ᶐߒߚᤨ㑆ߦ࡞ߢߩ⚿ᨐߣ߶ߣࠎߤห᭽ߩ⚿ᨐߢ޽ߞߚ㧚ଐሽߒߥ߆ߞߚ㧚ࡊࡠࡄࡁ࡯࡞ߦᶐߔᣇᴺߢߩ㒰㔚ߪቢ

134 (44)

静電気学会誌

第 29 巻

第 2 号（2005）

⴫ 1 PP ࡈࠖ࡞࠲ߩ⴫㕙㔚૏
Table 1 Surface Potential of PP Filters㧚⴫㕙㔚૏ (V)
No.



⹜ᢱ

⩄㔚㕙(⴫)

ⵣ㕙

▚ⴚᐔဋ୯

⛘ኻᐔဋ୯

▚ⴚᐔဋ୯

⛘ኻᐔဋ୯

1

ട࿶ਅ(0.2MPa)ߢ⩄㔚ߒߚࡈࠖ࡞࠲ (-50kV)

413

413

-976

976

2

ࡊࡠࡄࡁ࡯࡞ṁᶧߢ㒰㔚ߒߚࡈࠖ࡞࠲

-24

37

23

51

3

ᄢ᳇࿶ਅߢౣ⩄㔚ߒߚࡈࠖ࡞࠲(-9kV)

-730

730

428

428

ࡈࠖ࡞࠲ࠍ㐳ᤨ㑆ౣ⩄㔚ߒߚ႐วߩᕈ⢻100
Filtration Efficiency (%)(0.3µm)ࠦࡠ࠽᡼㔚ࠍ↪޿ߚᲕ⩶ࠍⴕ߁႐วߦߪ㧘ᔅⷐߥࠝ࠱ࡦ
Ớᐲࠍᓧࠆߚ߼㧘㐳ᤨ㑆ࠦࡠ࠽᡼㔚ࠍᜬ⛯ߔࠆᔅⷐ߇޽ࠆ㧚
ࠝ࠱ࡦᲕ⩶ߢߪೋ⩶ᢙ ᜂ૕ߢᱷ⩶ᢙ  ߦߔࠆߚ߼ߦ
ߪ㧘ᨗ⨲⩶⢩ሶߩ႐ว %6 ୯㧔Ớᐲߣ᥸㔺ᤨ㑆ߩⓍ㧕RRO࡮OKP㧘৻⥸ᩕ㙃⚦⩶ߩ႐ว %6 ୯ RRO࡮OKP߇ᔅⷐߢ޽ࠆߎߣ߇ႎ๔ߐࠇߡ޿ࠆ 㧕㧚ೋᦼ↢⩶ᢙ %(795
90
Recharging
Charging85ᜂ૕એ਄ߩኻ⽎⩶ࠍ↪޿ߡᲕ⩶ታ㛎ࠍⴕ߁ߚ߼㧘Ვ⩶ലᨐ

80ࠍᓧࠆߦߪࡈࠖ࡞࠲ࠍࠦࡠ࠽᡼㔚ߢ㐳ᤨ㑆ౣ⩄㔚ߔࠆᔅ0ⷐ߇޽ࠆߣ੍ᗐߐࠇࠆ㧚

10

20
30
40
Charging Time (min)5060ࠦࡠ࠽᡼㔚ߢ㐳ᤨ㑆ࡈࠖ࡞࠲ࠍౣ⩄㔚ߒߚ㓙㧘ශട㔚࿶࿑ߦࠃߞߡߪಣℂᤨ㑆ߩჇടߣ౒ߦㅒ㔚㔌߿Ἣ⧎᡼㔚ߩ⊒ශട㔚࿶㧙M8 ߦߡ⩄㔚ߒߚ⩄㔚ᤨ㑆ߦ↢߇ⷰኤߐࠇߚ㧚ශട㔚࿶M㨂ߩ႐ว㧘 ಽ㑆ߩౣ⩄㔚

߅ߌࠆ 22 ࡈࠖ࡞࠲ߩᕈ⢻ ᝝㓸ല₸ ߢߪ⏕⹺ߢ߈ߥ߆ߞߚㅒ㔚㔌ߩ⊒↢߇ಣℂᤨ㑆 㨪 ಽ

Fig. 7 Filtration Efficiency of PP Filter charged by⒟ᐲߢ⏕⹺ߐࠇ  ಽ⒟ᐲߢἫ⧎᡼㔚߇⊒↢ߒࡈࠖ࡞࠲ߦ

DC Corona (-7.5kV) for Various Charging Time䋮៊்߇↢ߓߚ㧚ශട㔚࿶ࠍૐਅߐߖߡౣ⩄㔚ࠍⴕߞߚ⚿ᨐ㧘
0.3µm

ශട㔚࿶M㨂ߦߡ⩄㔚ߒߚ႐ว⚂  ಽ⒟ᐲߢㅒ㔚㔌
100
95
90
85
80
75
70
65
60

ࠖ࡞࠲ߩᕈ⢻߇ᓳᵴߢ߈ࠆ߆ߤ߁߆⏕⹺ታ㛎ࠍⴕߞߚ㧚࿑  ߦᧂ⩄㔚෸߮ ࡊࡠࡄࡁ࡯࡞ߢ㒰㔚ߒߚࡈࠖ࡞࠲
ࠍශട㔚࿶M8 ߢ⩄㔚ߒߚߣ߈ߩ⩄㔚ᤨ㑆ߦኻߔࠆࡈ
ࠖ࡞࠲ߩ᝝㓸ല₸ࠍ␜ߔ㧚ᧂ⩄㔚ࡈࠖ࡞࠲ࠍ⩄㔚ߒߚ႐ว㧘 ಽ㑆ߩౣ⩄㔚ߢࡈࠖ࡞࠲ല₸ߪቶౝᓸ☸ሶ ǴO ߦኻߒ 㧑એ਄ߣߥࠅ  ಽߩ⩄㔚ߢ 㧑⒟ᐲߦߥߞߚ㧚ߒ߆࿑

Recharging(3rdTime)ߢ߈ߥ߆ߞߚߚ߼ශട㔚࿶M8 ߦߡ㐳ᤨ㑆⩄㔚ߢ 22 ࡈ

Immersion(3rdTime)㔚ߒߚߣ߈ߪቶౝᓸ☸ሶ ǴO ߦኻߒ 㧑⒟ᐲߒ߆᝝㓸

Recharging(2ndTime)࿑  ߦ␜ߔࠃ߁ߦౣ⩄㔚ⵝ⟎ߢᧂ⩄㔚ࡈࠖ࡞࠲ࠍ  ಽ㑆⩄

Immersion(2ndTime)⹺ߢ߈ߚߩߢᲕ⩶ߩታ㛎ߢߪߎߩ㔚࿶ࠍ↪޿ߚ㧚ߒ߆ߒ㧘

Recharging(1stTime)ߢㅒ㔚㔌෸߮Ἣ⧎᡼㔚߇⊒↢ߒߥ޿ߎߣࠍ  ᤨ㑆߹ߢ⏕

Immersion(1stTime)㔌෸߮Ἣ⧎᡼㔚ߪ⊒↢ߒߥ߆ߞߚ㧚ߎߩශട㔚࿶M8

SampleElectretFilter

Filtration Efficiency (%)߇⏕⹺ߐࠇߚ㧚ශട㔚࿶M8 ߢౣ⩄㔚ߒߚ႐ว㧘ㅒ㔚

0.5µmౣ⩄㔚࿁ᢙߦ߅ߌࠆ 22 ࡈࠖ࡞࠲ߩ᝝㓸ല₸ߒ㧘㒰㔚ࡈࠖ࡞࠲ߩౣ⩄㔚ߢߪ  ಽ㑆ߩ⩄㔚ߢቶౝᓸ☸ሶ

Fig. 8 Filtration Efficiency of PP Filter FrequentlyǴO ߦኻߒ 㧑⒟ᐲ㧘 ಽ㑆ߢ 㧑એ਄㧘 ಽ㑆ߢRecharged By DC Corona Discharge䋮㧑⒟ᐲߣߥߞߚ㧚ߎߩ⚿ᨐ߆ࠄශട㔚࿶M8 ߩౣ⩄㔚ߢ㒰㔚ࡈࠖ࡞࠲߇ಣℂᤨ㑆  ಽએ਄ߢട࿶⩄㔚ࡈࠖ࡞࠲ߩᕈ⢻࡟ࡌ࡞⒟ᐲ߹ߢᓳᵴߢ߈ࠆߎߣ߇⏕⹺ߢ߈ߚ㧚㐳ᤨ㑆ౣ⩄㔚࿁ᢙߩࡈࠖ࡞࠲ᕈ⢻߳ߩᓇ㗀

22 ࡈࠖ࡞࠲ࠍ㐳ᤨ㑆ౣ⩄㔚ߔࠆ࿁ᢙߦࠃࠆࡈࠖ࡞࠲߳
ߩᓇ㗀߽ᬌ⸛ߒߚ㧚㒰㔚ࡈࠖ࡞࠲ࠍශട㔚࿶M8 ߦߡ ᤨ㑆ౣ⩄㔚ߒߚᓟ㧘ౣᐲߘߩࡈࠖ࡞࠲ࠍ ࡊࡠࡄࡁ࡯࡞

再荷電による PP エレクトレットフィルタのエレクトレット性能復活と殺菌効果（TUN LWIN ら）

135 (45)

ߢഠൻߐߖ  ࿁⋡ߩౣ⩄㔚ࠍ  ᤨ㑆ⴕߞߚ㧚ߎߩᚻ㗅ࠍ➅7

 ߦ␜ߔ㧚
㒰㔚ࡈࠖ࡞࠲ߪ  ࿁⋡ߩౣ⩄㔚ߢቶౝᓸ☸ሶ 

6
Sterilization Efficiency(digit)ǴO ߦኻߒ 㧑⒟ᐲߣߥࠅ㧘 ࿁⋡ߩౣ⩄㔚ߢ 㧑એ਄ߣߥߞߚߎߣ߆ࠄ➅ࠅ㄰ߒౣ⩄㔚ߩᓇ㗀ߢ߿߿᝝㓸ല₸߇

175

Sterilization
Efficiency
Ozone

5

150
125

4

100

3

75

2

50

㔚ߢ߽ࡈࠖ࡞࠲ߩᕈ⢻߇ᓳᵴߢ߈ࠆߎߣ߇␜ߐࠇߚ߽ߩ

125

ߣ⠨߃ࠄࠇࠆ㧚00ૐਅߒߡ޿ࠆ㧚ߒ߆ߒ  ࿁⋡ߩౣ⩄㔚߹ߢ࿑  ߦ␜ߔᧂ⩄㔚ࡈࠖ࡞࠲ࠍᄢ᳇࿶᧦ઙߢ⩄㔚ߒߡࠛ࡟ࠢ࠻࡟࠶࠻ൻ
ߒߚࡈࠖ࡞࠲ࠃࠅ㜞޿᝝㓸ല₸߇ᓧࠄࠇߡ߅ࠅ㧘㒰㔚ࡈࠖ࡞࠲ࠃࠅ᣿ࠄ߆ߦ᝝㓸ല₸߇ะ਄ߒߡ޿ࠆ㧚➅ࠅ㄰ߒౣ⩄

0



10

ಣℂኻ⽎⩶ߩᲕ⩶ലᨐ

㒰㔚ࡈࠖ࡞࠲ߩਅߦᬌ૕ࡈࠖ࡞ࡓࠍ⟎߈ශട㔚࿶࿑M8 ߦߡౣ⩄㔚ߒߚߣ߈ߩಣℂኻ⽎⩶ߩᲕ⩶ലᨐࠍ࿑

20 30 40 50 60
Charging Time (min)Ozone Concentration (ppm)ࠅ㄰ߒߡ  ࿁⋡ߩౣ⩄㔚߹ߢታ㛎ࠍⴕߞߚ㧚ߘߩ⚿ᨐࠍ࿑

70ౣ⩄㔚ߦࠃࠆࠗ࡯ࠬ࠻⩶ߩᲕ⩶⚿ᨐ

Fig. 9 Sterilization Effect of S. Cerevisiae㧘 ߦ␜ߔ㧚ೋᦼ↢⩶ᢙ %(7ᜂ૕ߩࠗ࡯ࠬ࠻

by Recharging DC Corona㧚⩶ߩ႐ว㧘ᬌ૕ࡈࠖ࡞ࡓߩಣℂᤨ㑆ߦኻߔࠆᲕ⩶ലᨐ ᷫዋᩴ ෸߮ࠝ࠱ࡦỚᐲࠍ࿑  ߦ␜ߔ㧚ಣℂᤨ㑆  ಽ㑆ߢࠝ350

7

࠱ࡦ RRO ⒟ᐲ㧘 ಽ㑆ߢࠝ࠱ࡦ RRO ⒟ᐲ㧘 ಽ㑆ߢSterilization
Efficiency
Ozone

6

ߩᷫዋ߇⷗ࠄࠇ࿑  ߦ␜ߔࠃ߁ߦಣℂᤨ㑆  ಽࠍ⿥߃ࠆ

5

250

4

200

3

150

2

100

1

50

ߣ⩶ߩᷫዋ߇ᣧߊߥࠅ  ಽߢ  ᩴߩᷫዋ߇ᓧࠄࠇߚ㧚 ಽߩಣℂᤨ㑆ߢ  ᩴߩṌ⩶߇⏕⹺ߐࠇߚ㧚ᨗ⨲⩶⢩ሶߩ႐วߦ߅ߌࠆ⩄㔚ᤨ㑆ߣᲕ⩶ലᨐ ᷫዋᩴ ෸߮ࠝ࠱ࡦỚᐲߩ㑐ଥࠍ࿑  ߦ␜ߔ㧚ࠝ࠱ࡦỚᐲߪ ಽ㑆ߢ RRO㧘 ಽ㑆ߢ RRO㧘 ಽ㑆ߢ RRO⒟ᐲ↢ᚑߐࠇߚ㧚%(7ᜂ૕ߩᨗ⨲⩶⢩ሶߦኻߔࠆ
ౣ⩄㔚ߦࠃࠆᲕ⩶ലᨐߪ㧘 ಽ㑆ߩಣℂߢ  ᩴ⒟ᐲ㧘00 ಽ㑆ߩಣℂߢ  ᩴ⒟ᐲ㧘 ಽ㑆ߩಣℂߢ  ᩴ㧘0 ಽ㑆ߩಣℂᤨ㑆ߢ  ᩴߩᷫዋ㧔↢ᱷ⩶ᢙߪ 㧕ߣߥ

300

Ozone Concentration (ppm)

Sterilization Efficiency(digit)RRO ⒟ᐲߢ޽ߞߚ㧚Ვ⩶ലᨐߣߒߡߪ  ಽ㑆ߢ  ᩴ

30

60

90

120 150 180 210

Charging Time (min)ߞߚ㧚ߎࠇࠄߩᲕ⩶⚿ᨐ߆ࠄ㧘㒰㔚ࡈࠖ࡞࠲ߩᕈ⢻ᓳᵴ߇⏕⹺࿑  ౣ⩄㔚ߦࠃࠆᨗ⨲⩶⢩ሶߩᲕ⩶⚿ᨐߐ ࠇ ߚ ශ ട 㔚 ࿶ M8 ߩ ౣ ⩄ 㔚 ߦ ࠃ ࠅ 㧘 ೋ ᦼ ↢ ⩶ ᢙFig. 10 Sterilization Effect of B. Subtilis spores%(7ᜂ૕ߩࠗ࡯ࠬ࠻⩶ߪ  ᤨ㑆ߢṌ⩶ߐࠇ㧘&

by Recharging DC Corona㧚୯ߪ UGE ߣߥࠅ㧘ೋᦼ↢⩶ᢙ %(7ᜂ૕ߩᨗ⨲⩶⢩ሶߪ  ಽ㑆ߩಣℂᤨ㑆ߢ UGE ߩ & ୯߇ᓧࠄࠇߚ㧚ߦૐਅߒߚ߇㧘ᧂ⩄㔚ࡈࠖ࡞࠲ߩᕈ⢻࡟ࡌ࡞߹ߢߪ
ૐਅߒߥ߆ߞߚ㧚

㧚߹ߣ߼



㒰㔚ߦࠃࠅഠൻߒߚࡈࠖ࡞࠲ࠍ㧘ታ↪⊛ߦ೑↪ߢ߈ࡈࠖ࡞࠲߇‛ℂ⊛ߦ៊்ࠍฃߌࠆ߹ߢౣ೑↪ߒ㧘ࡈࠖ࡞ࠆᧄౣ⩄㔚ⵝ⟎ߢ  ಽ㑆ౣ⩄㔚ߔࠆߎߣߢ㧘ࠛ࡟ࠢ࠲ኼ๮ࠍࠃࠅ㐳ߊߔࠆߎߣࠍ⋡⊛ߣߒߡ ࡊࡠࡄࡁ࡯࡞

࠻࡟࠶࠻ࡈࠖ࡞࠲ߩೋᦼᕈ⢻ߣ߶߷ห࡟ࡌ࡞߹ߢᓳ

ࠍ↪޿ߡࡈࠖ࡞࠲ᕈ⢻ഠൻߩ᭽ሶࠍታ㛎⊛ߦᬌ⸛ߒ㧘㒰㔚ᵴߢ߈ߚ㧚

ߐࠇഠൻߒߚࡈࠖ࡞࠲ߩᕈ⢻࿁ᓳ߇‫ޔ‬ታ↪⊛ߥᄢ᳇࿶ࠦࡠ

ࡈࠖ࡞࠲ࠍᢙ࿁➅ࠅ㄰ߒౣ⩄㔚ߒߚ⚿ᨐ㧘ೋ࿁ߦᲧ࠽᡼㔚ߦࠃࠆౣ⩄㔚ⵝ⟎ߢน⢻߆ߤ߁߆ታ㛎ࠍⴕߞߚ⚿ߴ߿߿ૐਅߒߡ޿ࠆ߇㧘㒰㔚ߦࠃࠅഠൻߒߚࡈࠖ࡞

ᨐએਅߩ⚿⺰߇ᓧࠄࠇߚ㧚࠲ࠃࠅ᝝㓸ല₸߇᣿ࠄ߆ߦะ਄ߒߚ㧚߹ߚ㧘ᧂ⩄㔚

22 ࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ߪ ࡊࡠࡄࡁ࡯࡞ߢ㒰ࡈࠖ࡞࠲ࠍࠛ࡟ࠢ࠻࡟࠶࠻ൻߒߚࡈࠖ࡞࠲ᕈ⢻એ਄㔚࡮ഠൻߐߖࠆߣ㧘ቶౝᓸ☸ሶ ǴO ߦኻߒࠛ࡟ࠢ

߇ᓧࠄࠇ‫ޔ‬ᢙ࿁➅ࠅ㄰ߒౣ⩄㔚ߒߡ߽ࡈࠖ࡞࠲ߩᕈ

࠻࡟࠶࠻ࡈࠖ࡞࠲ߩೋᦼ᝝㓸ല₸߆ࠄ 㧑⒟ᐲ᣿⏕⢻߇ᓳᵴߢ߈ࠆߎߣ߇್᣿ߒߚ㧚

136 (46)

静電気学会誌

第 29 巻Technol., 9 (1995) 473

ࡈࠖ࡞࠲ࠍᧄౣ⩄㔚ⵝ⟎ߢࠦࡠ࠽᡼㔚ߦ㐳ᤨ㑆᥸㔺ߔࠆߎߣߢ㧘ೋᦼ↢⩶ᢙ  %(7ᜂ૕ߩࠗ࡯ࠬ

4)

࠻⩶ߦኻߒߡ  ᤨ㑆ߢ㧘߹ߚ  %(7ᜂ૕ߩᨗ
5)
6)

M. Lee, Y. Otani, N. Namiki and H. Emi: J. Chem. Eng.
Jpn., 35 (2002) 57

ᨐ߽ᓧࠄࠇࠆߚ߼㧘ࠃࠅ቟ోߦࠛ࡟ࠢ࠻࡟࠶࠻ࡈࠖ࡞࠲ࠍ
㐳ኼ๮ߢ೑↪ߔࠆߎߣ߇ߢ߈ࠆ߽ߩߣᦼᓙߐࠇࠆ㧚

C.C. Chen, M. Lehtimaki, K. Willeke: Am. Ind. Hyg.
Assoc. J., 54 (1993) 51

ߎࠇࠄߩ⚿ᨐ߆ࠄ㧘ᧄౣ⩄㔚ⵝ⟎ߢ 22 ࡈࠖ࡞࠲ࠍౣ⩄㔚ߔࠆߎߣߦࠃࠅࡈࠖ࡞࠲ߩᕈ⢻߇ᓳᵴߢ߈㧘ߐࠄߦᲕ⩶ല

P.P. Tsai, H. Schreuder-Gibson, P. Gibson: J. Electrost.,
54 (2002) 333

⨲⩶⢩ሶߦኻߒߡ  ᤨ㑆ߢṌ⩶ലᨐ߇ᓧࠄࠇߚ㧚

第 2 号（2005）

7)

᧖శ⧷ବ: ࠝ࠱ࡦߩၮ␆ߣᔕ↪(ౣ), p.201, శᶷ(ᩣ) (2004)ᧄ⎇ⓥߦኻߒ㧘⾆㊀ߥߏഥ⸒ߣߏഥജࠍ⾦ࠅ߹ߒߚశㅴ

8)㊍ἑᐘᐢ: ᄢ᳇࿶᡼㔚ࡊ࡜࠭ࡑࡊࡠ࠮ࠬߩၮ␆ߣ

㔚᳇Ꮏᬺᩣᑼળ␠㧘᡿ᧁ᧛ഞ᳁㧘ߥࠄ߮ߦ㧔ᩣ㧕ࠛࠦ࠹࠶ᔕ↪(2), ✬㓸 ᳓㊁ᓆ㧘p.98, ጟፒ࿖┙౒ห⎇ⓥᯏࠢ ૒⮮ᱞ᳁ߦᷓߊᗵ⻢↳ߒ਄ߍ߹ߔ㧚߹ߚ㧘ᧄ⎇ⓥߪᢥ

᭴㧘ಽሶ⑼ቇ⎇ⓥᚲ㧘(2004)

ㇱ⑼ቇ⋭  ਎♿ %1'‫␠᧪ᧂޟ‬ળߩ↢ᘒᕡᏱᕈᎿቇ‫ߩޠ‬ഥ9)㔚᳇ቇળ⹹, 28 (2004) 41

ᚑߦࠃߞߡⴕࠊࠇ߹ߒߚ㧚ߎߎߦ⻢ᗧࠍ⴫ߒ߹ߔ㧚߹ߚ㧘ታ㛎ࠍⴕ߁㓙ߦㆡಾߥഥ⸒ࠍ޿ߚߛ޿ߚ᳓㊁⎇ⓥቶߩᚑ㧘

TUN LWIN, ᚑᄺ␵, 㜞ፉ๺ೣ㧘᩵ㅴม㧘᳓㊁ᓆ: 㕒

10)

TUN LWIN, B. J. Sung, K. Takashima, S. Katsura and
A. Mizuno: Proceeding of 3rd Asia-Pacific Int. Sym. on

⼱㊁㧘⮮㊁ฦ᳁ߦᔃࠃࠅᗵ⻢޿ߚߒ߹ߔ㧚

the Basic & Application of Plasma Techol.(APSPT-3),
p.199 (2003)

ෳ⠨ᢥ₂
1)

R.C. Brown, W.R. Gray, D.B. Blackford and G.J.

11)

54 (2002) 333

Bostock: Ann. Occup. Hygi., 32 (1988) 271
2)
3)

J. Van Turnhout, J.W.C. Adamse and W.J. Hoeneveld: J.

P.P. Tsai, H. Schreuder-Gibson, P. Gibson: J. Electrost.

12)

Tun Lwin, K. Takashima, S. Katsura and A. Mizuno:

Electrost., 8 (1980) 369

Proceeding of 4th French Electrostatics Society

P.P. Tsai and L.C. Wadsworth: Adv. Filt. & Sepa.

Congress, p.240 (2004)