2006 International Conference on Nanotechnology, April 26-28, 2006 Atlanta, GA Synthetic Layered Silicates for Paper and Polymeric Nanocomposites Applications Platy Magadiite a Novel Pigment & Nanofiller Authors: Juan M. Garcés *, Jamel Attal** * Consultant, Retired from: **The Dow Chemical Company Your logo here
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Synthetic Layered Silicates for Paper and Polymeric ... · Na 2 O. 14SiO 2. 9H 2 O = Na 2 O. 14SiO 2. H 2 O + 8H 2 O [13.53%] Na 2 O. 14SiO 2. H 2 O = Na 2 O. 14SiO 2 + H 2 O [1.69%]
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2006 International Conference on
Nanotechnology, April 26-28, 2006
Atlanta, GA
Synthetic Layered Silicates for Paper and Polymeric Nanocomposites Applications
Platy Magadiite a Novel Pigment & Nanofiller
Authors: Juan M. Garcés *, Jamel Attal** * Consultant, Retired from:**The Dow Chemical Company Your logo here
– Higher modulus = wall thickness reduction = 25% improvement– Lower specific gravity over current “filled” materials = 5% improvement– Lower CLTE = advantages of improved fit with fewer fasteners
Material Synthesis by DesignPolymer-Clay Nanocomposites
High Aspect Ratio Fillers
Synthetic PlatyMaterials
Plates Dispersedin Polymer
Modeling Performanceand Structure
Modeling an Ideal NanocompositeModulus, CLTE, Permeability, Orientation, etc.
1.0
1.5
2.0
2.5
3.0
3.5
0 0.01 0.02 0.03 0.04 0.05
Mod
ulus
Enh
ance
men
t Rat
io
Nanofiller Volume Fraction
1
10
100
25
50
Filler AspectRatio = 20
200
500
10,000
1,000
Modulus Ratio (Filler/Matrix) = 73.5
Source: LITAC Model / J. Bice
0
2
4
6
8
10
12
0 0.1 0.2 0.3
Volume fraction of filler
CLT
E (m
/m/K
x10-
5)
aspect ratio 200aspect ratio 50aspect ratio 10aspect ratio 5aspect ratio 1
J. Bicerano, J. F. Douglas and D. A. Brune, J. Macromol. Sci. - Reviews, C39, 561-642 (1999).D. A. Brune and J. Bicerano, Polymer, 43, 369-387 (2002).
Synthetic Magadiite G. Lagaly, K. Beneke, A. Weiss: Proc. Internat. Clay Conf. Madrid
Tappi OpacityPlaty magadiite: Impact on formulations
80.0
80.5
81.0
81.5
82.0
82.5
83.0R
un 1
(A+C
lay
Ctl) Run
2(A
+15M
ag)
Run
3(A
+25M
ag)
Run
4 (B
+Cla
yC
tl) Run
5(B
+15M
ag)
Run
6(B
+25M
ag)
Run
7 (A
+Car
b)
Run
8(A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
Tapp
i Opa
city
Sheet Gloss
35
40
45
50
55
60R
un 1
(A+C
lay
Ctl) Run
2(A
+15M
ag)
Run
3(A
+25M
ag)
Run
4 (B
+Cla
yC
tl) Run
5(B
+15M
ag)
Run
6(B
+25M
ag)
Run
7 (A
+Car
b)
Run
8(A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
Shee
t Glo
ss (7
5 D
eg)
Print Gloss
65
70
75
80
85
90
95R
un 1
(A+C
lay
Ctl) Run
2(A
+15M
ag)
Run
3(A
+25M
ag)
Run
4 (B
+Cla
yC
tl) Run
5(B
+15M
ag)
Run
6(B
+25M
ag)
Run
7 (A
+Car
b)
Run
8(A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
Prin
t Glo
ss
Brightness
65.0
66.0
67.0
68.0
69.0
70.0
71.0
72.0
73.0R
un 1
(A+C
lay
Ctl)
Run
2 (A
+15M
ag)
Run
3 (A
+25M
ag)
Run
4 (B
+Cla
yC
tl)
Run
5 (B
+15M
ag)
Run
6 (B
+25M
ag)
Run
7 (A
+Car
b)
Run
8 (A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
Bri
ghtn
ess
Helio – Roto Printability
0
10
20
30
40
50
60
70
80
Run
1 (A
+Cla
y C
tl)
Run
2 (A
+15M
ag)
Run
3 (A
+25M
ag)
Run
4 (B
+Cla
y C
tl)
Run
5 (B
+15M
ag)
Run
6 (B
+25M
ag)
Run
7 (A
+Car
b)
Run
8 (A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
Hel
io (m
to 2
0 m
issi
ng d
ots)
Roughness (mm)
0.7
0.9
1.1
1.3
1.5
1.7
1.9
Run
1 (A
+Cla
yC
tl)
Run
2 (A
+15M
ag)
Run
3 (A
+25M
ag)
Run
4 (B
+Cla
yC
tl)
Run
5 (B
+15M
ag)
Run
6 (B
+25M
ag)
Run
7 (A
+Car
b)
Run
8 (A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
Rou
ghne
ss
Whiteness
35
37
39
41
43
45
47
49
51R
un 1
(A+C
lay
Ctl) Run
2(A
+15M
ag)
Run
3(A
+25M
ag)
Run
4 (B
+Cla
yC
tl) Run
5(B
+15M
ag)
Run
6(B
+25M
ag)
Run
7 (A
+Car
b)
Run
8(A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
AST
M W
hitn
ess
B-Value
5.5
6.0
6.5
7.0
7.5
8.0
Run
1 (A
+Cla
yC
tl) Run
2(A
+15M
ag)
Run
3(A
+25M
ag)
Run
4 (B
+Cla
yC
tl) Run
5(B
+15M
ag)
Run
6(B
+25M
ag)
Run
7 (A
+Car
b)
Run
8(A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
CIE
B-V
alue
Coating Strength – IGT Pick
0
50
100
150
200
250
300R
un 1
(A+C
lay
Ctl) Run
2(A
+15M
ag)
Run
3(A
+25M
ag)
Run
4 (B
+Cla
yC
tl) Run
5(B
+15M
ag)
Run
6(B
+25M
ag)
Run
7 (A
+Car
b)
Run
8(A
+25M
ag)
Run
9 (B
+Car
b)
Run
10
(B+2
5Mag
)
Dry
Pic
k
Run 3
(A + 25 Parts Magadiite)
Run 1 A + Clay Control
SEM – Coated Surfaces
Pilot Coater RunnabilityDow Pilot Coater
Speed = 4000 ft/min
Results CommentsPositives– Excellent Hellio for Roto Printability– Excellent Ink Gloss– Improved Brightness and Opacity– Excellent smoothness– Pilot run successful Challenges