![Page 1: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/1.jpg)
2019. 01. 31
Y. S. Song
Amogreentech Co., Ltd.
ANF Nanotechnology Commercialization Workshop
Commercialization of Nanofibers
produced by Hybrid Electrospinning
NanoMembrane
![Page 2: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/2.jpg)
Contents
I
II
III
V
Development of Nanofiber Membrane
Introduction of Amogreentech
Application of Nanofiber Membrane
Difficulty of Commercialization
2
VI Conclusion
IV Optimization of Nanofiber Manufacturing Process
![Page 3: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/3.jpg)
AMOTECHAMOGREENTECH
AMOSENSEAMOLIFESCIENCE
AMO Group Overview
Established in Oct.,1994
(Public since 2003)
Established in Jan,2004
Established in Nov., 2008
Established in Sept, 2016
Global Leader
in IT, Automotive, High Efficient Energy & Bio Technologies
EMC Antenna BLDC Motor
Wireless Charging Ceramic Division Packaging Division Sensors Circuitry Integration S/W
Nanocrystalline Core Nano Fiber Thermal Plastic / Materials Flexible Battery Thin FPCB Water/Air Filter
Cell Culture Magnetic Beads Wound Patch Smart Skin E-Health Care Device
3
![Page 4: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/4.jpg)
Amogreentech’s Nano Materials
NanoCrystalline
Nano Particles
NanoMembrane
NanoComposite
Plastic
4
![Page 5: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/5.jpg)
Core
• CT
• CMC/Powder Core
Wireless Power Supply
LF Antennas materials
Air Vent (IPX4)
IP67/ 68 membrane with High
resistance to water pressure
Nano Sensors
Water Treatment Filter
Nanocrystalline Nano Membrane
Thermal Plastic
Thermal Coating
Thermal Interface Material
Thermal Materials
Nano Ink
Metal Mesh
FPCB
• Ultra Thin FPCB
• Multi Layer FPCB
• Direct Printing FPCB
Flex / Nano Ink
ESS(UPS)
Flexible Battery
Battery
Amogreentech’s Business Area
Water / Air Filter
Water Filter
Air Filter
Fuel Filter
5
![Page 6: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/6.jpg)
Functional Parts
339 (33%)
208 (20%)
Advanced Materials491 (47%)
ItemsNo. of
patents
Advanced
Materials
Magnetic materials 93
Thermal materials 150
Nano Membrane 248
Functional Parts
FPCB 26
Thin film PCB 81
Flexible Battery 165
Secondary Battery 67
Environment &
Energy
ESS 8
Metallic Converter 75
Water treatment 107
Air-Vent system 18
Sum 1,038
Environment & Energy
Based on Nano technology
Patents Acquisition to become Global Leader in Materials Field
Patent Porfolio
6
![Page 7: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/7.jpg)
What is Nanofiber ?
Features
Relative index
of surface area
Nanofiber
20 µm 20 µm>Microfiber
Nanofiber
Size : 200 nm
High specific surface area Small pore structure
>
Nanofiber Microfiber
Size of pore
Overview
1 ~ several hundred nm
D
L 1/20 diameter compared to conventional microfiber
: Diameter below several hundred nm
Expanding applications with innovative performance
: Functional Textile, Vent, Filter, Sound Absorber,
Next Generation Energy, Bio application, etc.
7
![Page 8: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/8.jpg)
• Super specific surface area
• Narrow pore size distribution
• High Porosity (70~85%)
• Perfect 3D Open pore structure (No blinded pore)
• Excellent uniformity
• Excellent breathability
• Excellent molecular recognition ability
• Excellent adsorb-ability
• Easy to incorporate functional additives
Microfibers vs. Nanofibers
Nanofibers
CONVENTIONAL NANOFIBER
Features
Why use Nanofiber Membrane ?
8
![Page 9: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/9.jpg)
Con-jet
Unperturbed
droplet
Spraying
60 fps4,500 fps
Nanofiber Membrane : Manufactured by Electrospinning
Fabrication of Nanofiber Membrane
Human hair
Nanofibers(ϕ 0.1~1㎛)
(ϕ 80㎛)
9
![Page 10: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/10.jpg)
Existing membrane Nanofiber membrane(AMOTEX® )
Membrane formed by nanofibers
10
Characteristics of Nanofiber Membrane
surface
cross-sectionFeatures of Nano Membrane
• High specific surface area
• Fiber diameter of 5 ~ 500 nm
• High porosity (3D structure)
• small pore structure
![Page 11: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/11.jpg)
Nanofiber
Membrane
Filters• Water & Air filters
• Fuel filter
• Gas turbine filter
Functional
Fabric •Garment & Outdoor
cloths
•Protection fabrics
•Sport wear
•Military cloths
Others• Nanofiber fillers
• Sensor applications
• Acoustic absorbent (Building,Automobile,Aircraft)
Life Science•Transfer membrane
•Wound healing
•Scaffold for GTR membranes
•Anti-flu mask
•Barrier material
•Multi-functional nanoweb
Electric & Energy•Carbon nanofiber applications
•Separator for 2nd batteries
•Anode, Cathode material for
2nd batteries
•Transparent film as electrode
2. Applications
11
Application of Nanofiber Membrane
![Page 12: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/12.jpg)
2007
• R&D started
• Lab. Scale facilities were installed
2010
• Pilot plants were installed
- Spinning width of 500, 1,000mm
2012
• Mass production lines were installed
- Spinning width of 1,100, 1,700mm
• Productive Capacity was 60,000m2/month
2015
• Facilities for the vents and adhesive area
were added
▲ Lab. Scale equipment
▲ Production line(1,700mm line)
▲ 1,700mm line in operation
12Appearance of the Nanofiber Membrane
Commercialization of Nanofiber Membrane
![Page 13: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/13.jpg)
Practical use
Commercialization
MaturityR & D
Early market formation
Commercialization of Nanofibers
13
Death
Valley
How do we make a bridge that
technology can overcome ?
Tech-
nology
![Page 14: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/14.jpg)
14
Practical use
Commercialization
Maturity
R & D
Early market formation
Tech-
nology
Commercialization of Nanofibers
Discovery of customer needs
Convergence of technology
![Page 15: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/15.jpg)
Material Flexibility• PVDF, PAN, PES,
• PU, Biopolymers,
• Blendable,
• Organic & inorganic hybrid
Processing
Flexibility• Electric & Air combined hybrid
electrospinning
• post process
- Calendering
- Oleophobic(hydrophobic)
- Hydrophilic
Fiber & Web Flexibility• Fiber dia. : > 0.1, < 1µm
• Weight : 0.3 ~100gsm
• Thickness : ~ 100µm
• Pore size : 0.1~ 10µm
Production Flexibility• Substitution of existing products
(Nano+substrate)
• Pure nanomembrane
products
Optimization of Nanofiber Performance
15
![Page 16: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/16.jpg)
Hybrid Electrospinning (Electric & Air)
HV Power Supply
Feeding
Solvent Evaporation
Collector
Electric
ForceAir Force
Setup of mass
production technology
Morphology Control
By Air Force
16
![Page 17: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/17.jpg)
X: Poor, △: Moderate, ○ : Good, ◎ : Excellent
ClassificationHybrid
E-spinning
Electro
Blown
Pure
E-spinning
Nozzless
E-spinning
Methods Electric+Air Air+Electric Electric Electric
Nozzle Yes Yes Yes No
Productivity ○ ◎ X △
Polymer versatility ○ △ △ ○
Web thickness ◎ ◎ X X
Web evenness ○ X ○ X
Control of fiber
diameter○ X △ △
Web density ○ X X ○
Superior uniformity and productivity Enables mass production
Hybrid Electrospinning
Electric & Air Hybrid Electrospinning
“
17
![Page 18: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/18.jpg)
◇ AMO, Nanofibers1um Test conditions
- Test method : ASTM E 1294
- Test rig : PMI, CFP1200
- Test area : 4.9cm2
- Test fluid : Galwick
□ Melt-blown 1um
X PVdF Membrane 1um
+ PES Membrane 1.2um
“Very narrow pore size distribution & easy to optimize”
18
Hybrid Electrospinning
![Page 19: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/19.jpg)
protect comport
Breathable Fabric
Improvement of
permeability
19
Changes in customer demand for outdoor clothing materials
![Page 20: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/20.jpg)
Breathable (air, sweat permeability)
- Waterproof : pore size control
- Breathable : pore size control
high porosity
- Wash durability
- Reduction of friction noise
- Price competitiveness
OK !
OK !
OK !
OK !
OK !
OK !
Nanofiber Membrane
20
Changes in customer demand for outdoor clothing materials
rain
wind
Textile
Nano Membrane
Sweat
vapor
Moisture-proof(waterproof)
![Page 21: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/21.jpg)
- Waterproof : pore size control
- Maintain sound permeability
: lightweight, soft, high porosity
- Maintain mechanical strength
AMOVentMems
Cushion ring
Support ring
Waterproof adhesive
Customer needs for Vent materials
OK !
OK !
OK !
Vent Membrane for acoustic
Moisture-proof(waterproof) Sound permeability
waterproofsound, air permeation
21
![Page 22: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/22.jpg)
IPX7 grade 2 Point / Spk 1ea, Rcv 1ea
Speaker Receiver
22
Example of actual use of Vent (speaker sound test)
![Page 23: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/23.jpg)
IP 44 IP 64IP 54
Example of actual use of Vent (speaker sound test)
23
![Page 24: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/24.jpg)
AutomotiveAutomotiveAutomotive Automotive
Vents
Packaging Ink & TonerAutomotivePortable Electronics
Lamps
ECU
Battery
Agriculture
Industrial
Consumer
Cleaner&Foods
Ink
Toner cartridge
24
Expanding application areas of Vent
![Page 25: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/25.jpg)
전자제어장치성능악화, 수명감소
Automotive
Automotive
Vents
OthersHearing device
Lights Telecommunication Infrastructure
Liquid Storage Tanks Solar panels
Sensor
25
Expanding application areas of Vent
![Page 26: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/26.jpg)
90℃ Surface
Heat Source100℃
X-Y 400 W/mK
Z 400 W/mK
Copper Sheet
70℃
100℃
X-Y 1500 W/mK
Z 5 W/mK
Graphite
INSULAY
Cu
100℃
70℃
X-Y 400 W/mK
Z 0.3 W/mK
AGT HTF
HTF : Hybrid Thermal Film
(In plan : 400 W/mK, Through plan : 0.3 W/mK )
Thermal Insulation
Heat Spreading
Requires high performance & thinness Needs for heat control
26
Customer needs for heat dissipation(insulation)
![Page 27: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/27.jpg)
Nanofiber
Membrane
◈ HTF (Hybrid Thermal Film) structure
Hybrid structure with thin thickness satisfies customer's demand
(plane) (cross section)
Cu
Nano Web
- Heat dissipation through fast horizontal heat conduction by Cu (400 W / mK)
- Superior vertical insulation property by Nano Web (0.3 W / mk)
→ Surface temperature is lowered by "heat dispersion layer + heat insulating layer"
→ Price competitiveness compared to existing heat-insulating sheet
Very large surface area
Very small pore
Very high porosity
Very thin sheet
Cu + Nano Web structure
Insulation
New
27
Customer needs for heat dissipation(insulation)
Known
![Page 28: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/28.jpg)
Why use Nanofibers in Filtration area?
Benefits
• Excellent removal efficiency
• Very low pressure drop
• Longer filter service life
• Lower energy costs
• Reduced equipment downtime
• Reduced investment costs due to
compact size of filter systems
• Customize design & manufacturing
Features
• Narrow pore size distribution
• High Porosity (70~80%)
• Perfect 3D Open pore structure
(No blinded pore)
• Excellent uniformity
• Fixed pore construction
28
Wide distribution: range
of pore size distribution
: 0.1~1.2µm
Micro membrane
Diameter of fiber :
1~ 3µm
Porosity : 20~ 35%
Narrow distribution:
range of pore size
distribution : 0.4~0.6µm
Amogreentech
Diameter of fiber :
0.1~ 0.3µm
Porosity : 65~ 70%
Nano filter Advantage
![Page 29: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/29.jpg)
Portable Water Bag
Membrane for sewage / waste water
Flat membrane filtration module system for sewage / waste water
Powerless water purification system
3 layer membrane filtration module
29
Water/Air treatment system using Nanofiber membrane
Ultrafine dust filter
Automatic Ventilation Products
![Page 30: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/30.jpg)
Commercial VS Electrospin PVDF membrane
Commercial
Nanofiber
Pore Size(μm)
0.45 0.2~0.45
Thickness(μm)
165 60~150
Porosity(%)
67.7 73.3
Commercial PVDF Membrane Electrospin PVDF Membrane
1.0
μg
2.5
μg
5.0
μg
10.0
μg
20.0
μg
1μ
g
2.5
μ
g 5μ
g
10μ
g
20μ
g
1μ
g
2.5
μg
5μ
g
10μ
g
20μ
g
Electrospin PVDF membrane
Commercial PVDF membrane
Electrospin PVDF membrane is
“more sensitive” than
commercial PVDF membrane.
◈ Low uniformity ◈ High uniformity
30
Western Membrane
![Page 31: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/31.jpg)
Filters
<Liquid Filter>
<Fuel filter>
Bio & Medical
<Culture system>
<Westernmembrane>
Battery
<Separator for LIB><Super Capacitor>
<Flexible Battery>
Textile
<AMOTEX>
Electronic materials
<Acoustic vents film> <Hybrid thermal film>
<Patch>
<Mask pack><Filter module>
<ESS(UPS)>
Expanding application areas of Nanofibers
31
![Page 32: Commercialization of Nanofibers produced by Hybrid ...€¦ · electrospinning •post process - Calendering - Oleophobic(hydrophobic) - Hydrophilic Fiber & Web Flexibility •Fiber](https://reader034.vdocuments.net/reader034/viewer/2022042307/5ed2f0245beba44fdc53245f/html5/thumbnails/32.jpg)
Commercialization of Nanofibers
Commercialization
(Industrialization)
Suppliers
ResearcherCustomers
Market
Find &
Conver-
gence
Needs Technology
Social Infra(Government)
Value CreationFind Needs of Customers
32