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펄스UV
표면 세정 / 표면개질 시스템 (PULSE
UV SURFACE CLEANING / DEVELOPMENT SYSTEM)
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Non-Contact
Surface
Treatment
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 Pulsed
UV can be used as a
non-contact polymer
and metal surface treatment,
as reported by Prof.
Lawrence T. Drzal, Composite
Materials & Structures
Center, Dept. of Chemical
Engineering and Materials
Science, Michigan State
University (USA).
Paint
and adhesive performance
depends on the quality
(cleanliness and surface
energy) of the substrate
(adherent) surface.
Disadvantages of existing
surface pretreatment
methods like plasma,
flame, corona, and solvent
washing are labor intensive,
time consuming, damage
to the adherent surface,
and emission of volatile
organic compounds. Many
polymers used as matrices
for polymer composites
are being investigated.
Figure 8 obtained at
MSU within the past
year with a wide range
of thermoset and thermoplastic
polymers illustrates
the significant improvements
in surface energy that
can be obtained and
that have resulted in
better wetting of plastic
surfaces by adhesives
and coatings, and substantial
increase in adhesion
of UV treated surfaces
as measured by a tensile
butt test to an epoxy
matrix. Polymers investigated
have included thermoplastic
as well as thermoset
matrices. Although this
group of polymeric matrices
represents some of the
materials commonly used
in industry (TPO, Polypropylene,
Polyester, Polycarbonate,
Poly Phenylene Sulfide,
Poly methylmethacrylate
and vinyl ester), the
breadth of applicability
of this pulsed UV treated
method indicates that
it has a high potential
of being very useful
with other materials
as well.
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.Thermoplastic
polyolefin
(TPO).
.Reactor
Grade
(RTPO).
.Mechanical
grade
(MTPO)
.Sheet
molding
compound
(SMC)
.
.Regular
(SMC1).
.Toughened
(SMC2)
.Polyphenylene
Sulphide
(PPS).
.White
(PPS1).
.Black
(PPS2)C
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.Polypropylene
(PP)
.Polybutylene
terephthalate
(PBT)
.Bulk
Molding
Compound
(BMC)
.Diene
rubber
(DR)
.Ethylene
Acrylic
Rubber
(EAR)
.Polymethyl
methacrylate
(PMMA)
.Vinyl
Ester
(VE)
.Polycarbonate
(PC)
.Bexloy
(Ionomer)
Composite
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Figure
8: Samples treated with
pulsed UV (Figure provided
by Prof. Lawrence T.
Drzal)
A
model including the
important parameters
of this UV surface treatment
and comparison of methods
are shown in Figures
9 and 10 respectively.
The flexibility of pulse
light delivery to the
substrate (i.e., pulse
recurrence frequency,
pulse duration, and
spectrum) brings “tuning”
possibilities to various
substrates. Pulsed UV
meets the need for a
continuous, environmentally
benign, fast, cost effective
and non-contact surface
preparation process.
Figure
9: Parameters for surface
treatment process model.
(Figure provided by
Prof Lawrence T. Drzal)
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Conventional
Surface
Treatments
(Flame,
Corona,
Plasma,
Chemical)
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Pulse
UV Surface
Treatment
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Current
Status
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Flame,
Corona and
Chemical
Wash are
main stream
surface
treatment
technologies.
Plasma
- limited
acceptance.
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Developing
technology
- Equipment
manufacturing
base exists
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Environmental
Impact
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Chemical
- VOC emission,
waste disposal
Corona
- High levels
of ozone
produced.
Flame
- Greenhouse
gases, organic
fuels.
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Very
low levels
of ozone
produced
incontained
environment.
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Ability
to Treat
Complex
Geometries
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Flame,
Corona and
Plasma Treatments
have severe
limitations
in treating
complex
geometries.
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Line-of-sight
treatment.
Potential
to treatcomplex
geometries
is excellent.
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Treatment
Time
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Corona
Flame -
Very fast
treatment
times Chemical,
Plasma -
Moderate
treatment
times
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Fast
treatment
times(Time
scales inversely
with lamp
power)
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Hazards
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Chemical
- human
exposure,
waste disposal
Corona
- very efficient
Ozone production
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UV
protection
for humans
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Cost
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Corona
Flame, Chemical
- Inexpensive
Plasma
- Expensive
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Inexpensive
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Suitability
in Manufacturing
Environment
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Corona,
Flame -
Web treatment
applications.Removal
of process
gases required.
Chemical
- Adverse
environmental
impact,
hazardous.
Plasma
- Unsuitable
for large
scales.
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Excellent
suitability
for all
applications.
flat, complex
geometries,
large scale.Minimal
hazards.
UV protection,Removal
of low levels
of ozone
required
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Figure
10: Comparison of conventional
surface treatment and
pulsed UV. (Figure provided
by Prof. Lawrence T.
Drzal)
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저온UV경화,
플래시UV, 펄스UV, PULSE UV, XENON FLASH
UV LAMP, XENON, DVD BONDING, WAFER BONDING,
제논, 웨이퍼, 표면개질, UV세정, UV CLEANING,
엑시머, EXCIMER 세정, 필름세정, 무전극UV,
MICROWAVE UV, ELECTRODLESS UV, FUSION
UV,COOL UV, FAST CURING,SPOT UV 자외선
조사기, UV SPOT CURE, 의료기구, 튜브접착,
자동화라인, 고속건조, 자동본딩,살균,
위생, 식품처리, DNA, RNA, 스크린인쇄,
프린팅, 코팅, 점착, screen printing,
coating, adhesive, lcd glass, touch
screen, film, pmma, UV Curing, Ultraviolet
Curing Systems, UV Curing, UV Curing
Equipment for Medical Assembly, Medical
Assembly, Tubing bonding, UV,UV Rotary
Curing, UV Curing Technology, Ultraviolet
Curing Technology, Automated Process
Lines, Disk Drive HGA Bonding, High
Speed Automated Curing, High Speed Automated
Assembly, Ink Jet Cartridge Manufacturing,
Automated Bonding
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