advanced nano systems - mw2...
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![Page 1: ADVANCED NANO SYSTEMS - MW2 Defensemw2defense.com/wp-content/uploads/2015/01/MW2-Corporate-Rubber.pdf– Advanced Polymer Systems – High value Rubber Systems – EMI – Composites](https://reader030.vdocuments.us/reader030/viewer/2022040902/5e7389f8cbe4632d7311429b/html5/thumbnails/1.jpg)
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WWW.MW2DEFENSE.COM
WWW.MW2DEFENSE.COM
January 2015
Aerospace & Defense Markets
ADVANCED NANO
SYSTEMS
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Who we areFocus areas for success
Exclusive provider of Molecular Rebar® nanotube systems to the global defense industry
• Applications developed in-house as well as through Black Diamond Systems, JV between MRD and Sabic
• Molecular Rebar Design minority stakeholder and development partner
Focused exclusively on existing products & contracts and DOD lab directed initiatives• Segments including
– Energy Storage (Lead Acid / Lithium)
– Coatings
– Advanced Polymer Systems
– High value Rubber Systems
– EMI
– Composites
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The Problem We SolveUnlocking the potential in nanotubes
Since 1991:
• Multiple companies types,
same problems
• Micron sized clumps
• Hard to integrate
• Utilized in lower
value applications
• Key to unlock potential is
ability to utilize discrete
tubes
The Early Days
Potential Recognized Micron Sized Bundles / Clumping
The Problem
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Purchase of MWCNT’s
DetangleFormulate -
Disperse
MasterBatch -
Concentrate
Customer Integration
into end-product
Clumps of
entangled CNT’s
Clean, discrete carbon
nanotubes - MR
MR in Lead Paste
The Key Competitive AdvantageThe Creation & Utilization of Discrete Nano-Sized Tubes
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Why Molecular Rebar® is Different
• Cracking improved >50%
• Tear resistance >50%
• Adhesion >40%
Material Properties
• Heat, Electrical, Ion, & Molecular transport
• Drastic improvements in batteries
• Lifetime – up to 500%
• Charge Acceptance – up to 400%
• Energy Density – up to 20%
• Ability to provide system solution vs additive (traditional CNT)
• Controlled reflection & absorption
• Broad range of fabrication possible
Transport Properties Electromagnetic Fields
The Unique Benefits
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Rubber, Composites & Coatings
• Crack and Tear resistance improved >50%
• Static Electricity improved 100X
• Adhesion improved >40%• Significant cost savings
potential due to downtime reductions
Rubber PartsIntegrating Molecular Rebar®
• Bis A, Bis F, and Tetra-functional epoxies
• 50% improved Coefficient of Expansion
• Fatigue resistance up 700%+• Modulus / Tensile up 20%-
30%• Impact Properties up 30%• Adhesion up 30%-50%
Composites
• 700% improved Durability• 50% improved Coefficient of Expansion• Significant improvement in corrosion resistance / prevention• Very significant cost savings due to downtime reductions
Coatings
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Molecular Rebar® = Discrete Carbon Nanotubes
Unprocessed MWCNT Molecular Rebar®
The MRD process converts entangled tubes into discrete tubes of highaspect ratio while removing impurities.
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Latex Process : Rubber Master Batch (Natural & ESBR)
Dispersion in Latex Acid Coag., Wash, Devolve
Disperse MR 75 x
Master Batch
Master batch process to create 20% MR® concentrate in natural rubber and emulsion SBR has been successfully scaled to 10 kg/hour. Easy scale up to 40 kg/hour.
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Molecular Rebar® = Dispersible in Rubber
Unprocessed MWCNT in SBR Molecular Rebar™ in SBR
• The MRD masterbatch process produces a product that disperses as individual tubes in a rubber matrix
• This maximizes the reinforcing properties of carbon nanotubes
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Dispersion of MR Strengthens Base Rubber
0
50
100
150
200
250
300
350
400
0 1 2 3 4
Stre
ss (
psi
)
Strain
2 phr MR in SBR
2 phr MWCNT in SBR
SBR Only
2 phr MR®
2 phr MWCNT
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Managing White SpacesIn filled systems, the weakest phase is the unfilled spaces, “white spaces”.
Crack propagation can occur in unreinforced ‘White Spaces’
MR strengthens the white spaces and act as “molecular rebar” to prevent crack propagation
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MR in ‘White Spaces’ – Length is Critical
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
0.2
10
0
20
0
30
0
40
0
50
0
60
0
70
0
80
0
90
0
10
00
11
00
12
00
13
00
14
00
15
00
16
00
17
00
18
00
19
00
Mo
re
No
rm. F
req
uen
cy
Length (nm)
TYPICAL MR™ LENGTH DISTRIBUTION
Discrete carbon nanotubes strengthen the weak “white spaces”. The white spaces are managed through length control.
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Impact of White Space Management on Tear
Molecular Rebar® is managing the white space as seen by the stop-start of crack growth.
MR
CB/MR
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Tire Performance Predictors – MR Enhances All
0
20
40
60
80
100
120
140
160
180Cold Temp. Flexibility
Operating Stiffness
FuelEconomy
Treadlife
Tear Cut ChipResistance
0 phr MR in TireFormulation
3 phr MR in TireFormulationData prepared by
Advance Rubber Development Laboratory
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Improved Peel Strength – Passenger Car Tire
0
10
20
30
40
50
60
Control 2 phr MR
Pe
el
Stre
ngt
h (
lbf/
in)
180 Degree Peel TearSilica Passenger Car Formulation
Data provided by Akron Rubber Development Laboratory
42% Increase
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Military Track Pad Formulation
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0 5 10 15 20 25 30 35
Tear
Init
iati
on
En
ergy
(M
Pa)
Tensile Modulus 5% (MPa)
Existing Track Pad
Track Pad
Improved stiffness and tear initiation energy with MR
Increasing carbon phr
(2 phr in 50, 60, 70 and 80 phr CB)
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Tank Tread with Silica and CB
0
5
10
15
20
25
Control 3.5 phr MR
MP
a m
m/m
m129% Increase
Compound:Natural Rubber55 phr N330 CB13.5 phr Silica
Improved Tear with addition of MR
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Rubber Engine Mounts
0%
50%
100%
150%
200%
250%
300%
350%
Tear Energy
Tear Resistance
Stress at BreakStrain @ Break
Abrasion
Reference
4 phr
30 phr carbon black N650in Natural Rubber
Improved tear energy and tear resistance with MR
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Rubber Blow Out Preventer
0
500
1000
1500
2000
2500
3000
3500
0 1 2 3 4 5 6 7 8
Eng.
Str
ess
(p
si)
Strain
2 phr MR in NBR with 81 phr CB0 phr MR in NBR with 81 phr CB
96% INCREASE
Significant Tensile Strength Improvements with MR
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Rubber Blow Out Preventer
0
50
100
150
200
250
300
350
400
450
500
0 0.5 1 1.5 2 2.5
Eng.
Str
ess
(p
si)
Strain
0 phr MR
2 phr MR
Tear Intiation
Tear Arrest
Average Increase in
Tear Improvements with addition of MR
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Uniqueness of Molecular Rebar®
Molecular Rebar® are discrete, high aspect ratio MWCNT with modified surface chemistry
In rubber applications, Molecular Rebar® can:
1. Increase abrasion and cut & chip resistance
2. Increase stiffness, strength
3. Improve thermal and static conductivity
4. Improve matrix to filler interaction through surface functionality
5. Improve bonding to substrates through surface functionality
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Contact:
Chad Lewis
254-424-5700
[email protected] & Defense Markets
ADVANCED NANO
SYSTEMS
Contact:
Jim Welsh
512-422-3878