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Characterization of Polymer Surfaces and Interfaces
Presented byMallikarjunachari.G (AM12D005)
email: [email protected] of Applied Mechanics
Indian Institute of Technology, Madras
Chennai - 600036
Dt: 09/11/2012
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 2/25
CE 5950 Characterization of Construction Materials
Characterization of Polymer Surfaces and Interfaces
Why Thin Films and Spin Coating ?
Results & Discussions
Literature Survey and CharacterizationMaterial Description, Technique Used
Outline of Presentation:
Characterization of Polymer Surfaces and Interfaces
Outline of Presentation:
CE 5950 Characterization of Construction Materials
Applications Spin Coating
Methodology
Why Thin Films and Spin Coating ?
Results & Discussions
Literature Survey and CharacterizationMaterial Description, Technique Used
Mallikarjunachari.G Date: 09/11/2012 3/25
Mallikarjunachari.G Date: 09/11/2012 4/25
Electronic ComponentsElectronic Displays Optical Coatings
Magnetic Films for data storage Optical data storage devices
Why Thin Films & Spin Coating ?
Applications
Characterization of Polymer Surfaces and InterfacesWhy Thin Films
and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 5/25
Based on material Thickness
Thick films t > 300 nm
Thin films 100 < t < 300 nm
Ultra thin films t < 100 nm
Single layer N=1
Thin film: size reduction of bulk material in one direction
Classification of Thin Films
Material 1Material 2
Material 3Material 4
substratesubstratePolymer
Multi layer N>1
t film
substrate
Characterization of Polymer Surfaces and InterfacesWhy Thin Films
and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Dispenser
Substrate
Polymer + Solvent
Mallikarjunachari.G Date: 09/11/2012 6/25
Spin 150Single substrate spin processorSchematic Representation of spin coating
Top viewIsometric view
Characterization of Polymer Surfaces and InterfacesWhy Thin Films
and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 7/25
Characterization of Polymer Surfaces and Interfaces
Characterising Material System
Macro scale Nano scale
Microelectronic thin films (early 1980s)Mechanical properties important: electromigrationQuestions: Is E a function of tf? Is sy a function of tf? Is n a function of tf?
Bulk PropertiesYoung’s Modulus E
Hardness (HB) surface interactions
Thin films, Micro structure
Force Boding
Bonding
Energy KJ/Mol
Ionic400-4000
Covalent
150-1100
Metallic
75-1000
Force Boding
BondingEnergy KJ/Mol
Ion -Dipole 4-600
H-bond 10-40
Dipole - Dipole
5-25
Ion - induced
3-15
Dipole –Induced
dipole
2-10
Dispersion or
vanderwaals
0.05-40
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Material Analysis Methods:
Characterization of Polymer Surfaces and Interfaces
Outline of Presentation:
Why Thin Films and Spin Coating ?
Results & Discussions
Literature Survey and CharacterizationMaterial Description, Technique Used
Mallikarjunachari.G Date: 09/11/2012 8/25
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 9/25
Characterization of Polymer Surfaces and Interfaces
Characterization of polymer films produced at high speed of spin coating
Author: Krunal Bhavsar Fina draft
Nanoindentation and adhesion of sol-gel-derived hard coatings on polyester
C.M. Chan, G.Z. Cao, a) H. Fong, and M. Sarikaya Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195 T. Robinson and L. Nelson Korry Electronics, Co., Seattle, Washington 98109
Cement Paste –epoxy interactions Fatma Djouani a , Carole Connan a , Michel Delamar a , Mohamed M. Chehimi a, *, Karim Benzarti b, * a Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS), University Paris Diderot & CNRS (UMR 7086), 15 rue Jean de Baïf, 75013 Paris, France b Université Paris Est, Laboratoire Central des Ponts & Chaussées (LCPC), PCM, 58 Bld Lefebvre, 75015 Paris, France
FTIR
AFM
NANOINDENTATION
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Characterization of Polymer Surfaces and Interfaces
Outline of Presentation:
Mallikarjunachari.G Date: 09/11/2012 10/25
Why Thin Films and Spin Coating ?
Results & Discussions
Literature Survey and CharacterizationMaterial Description, Technique Used
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 11/25
Characterization of Polymer Surfaces and Interfaces
Characterization of polymer films produced at high speed of spin coating
Author: Krunal Bhavsar Fina draft
Nanoindentation and adhesion of sol-gel-derived hard coatings on polyester
C.M. Chan, G.Z. Cao, a) H. Fong, and M. Sarikaya Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195 T. Robinson and L. Nelson Korry Electronics, Co., Seattle, Washington 98109
Cement Paste –epoxy interactions Fatma Djouani a , Carole Connan a , Michel Delamar a , Mohamed M. Chehimi a, *, Karim Benzarti b, * a Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS), University Paris Diderot & CNRS (UMR 7086), 15 rue Jean de Baïf, 75013 Paris, France b Université Paris Est, Laboratoire Central des Ponts & Chaussées (LCPC), PCM, 58 Bld Lefebvre, 75015 Paris, France
FTIR
AFM
NANOINDENTATION
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Characterization of Polymer Surfaces and Interfaces
Material Description:
Thin Films and Spin Coating
Literature Survey and
Characterization
Overview of Results
Material Description and
objective
Overview of
Results
Cement/Adhesive Interface
Diethylenetriamine (DETA):
DETA
Cement Paste
Ordinary Portland Cement
C3S (3CaO.SiO2)+ Water
Cement Paste –epoxy interactions
Mallikarjunachari.G Date: 09/11/2012 12/25
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
FTIR
CE 5950 Characterization of Construction Materials
Atom F O N Cl
Electronegativity
4.0 3.5 3 3
H(2.20)
Mallikarjunachari.G Date: 09/11/2012 13/25
Characterization of Polymer Surfaces and Interfaces
Mechanism of Physical Adhesion and Spectroscopy: Importance of Dipole moments in Spectroscopy:
Diatomic Molecules:
Triatomic Molecules:
H-H, Br-Br, Cl-Cl
H-Cl, I-Cl, Carbon monoxide
Co2
H2O
http://www.succeedingwithscience.com/labmouse/chemistry_as/1903.php
MoleculeDegrees of freedom
Nonlinear 3n-6
Linear 3n-5
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Zero Debye 1.67 Debye
n = number of atoms in molecule
Ref: Making Sense About Dipole Moments Tridib Tripathy* and B. R. D**
* Department of Chemistry, Midnapur College, Midnapur, Paschim Medinipur
**
Mallikarjunachari.G Date: 09/11/2012 14/25
Characterization of Polymer Surfaces and Interfaces
Results and Discussions:
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 15/25
Characterization of Polymer Surfaces and Interfaces
Characterization of polymer films produced at high speed of spin coating
Author: Krunal Bhavsar Fina draft
Nanoindentation and adhesion of sol-gel-derived hard coatings on polyester
C.M. Chan, G.Z. Cao, a) H. Fong, and M. Sarikaya Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195 T. Robinson and L. Nelson Korry Electronics, Co., Seattle, Washington 98109
Cement Paste –epoxy interactions Fatma Djouani a , Carole Connan a , Michel Delamar a , Mohamed M. Chehimi a, *, Karim Benzarti b, * a Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS), University Paris Diderot & CNRS (UMR 7086), 15 rue Jean de Baïf, 75013 Paris, France b Université Paris Est, Laboratoire Central des Ponts & Chaussées (LCPC), PCM, 58 Bld Lefebvre, 75015 Paris, France
FTIR
AFM
NANOINDENTATION
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 16/25
Characterization of Polymer Surfaces and Interfaces
S.No Material Molecular
weight
1 Hydroxyl Ethyl Cellulose (HEC)
72000
2 Hydroxyl Methyl Cellulose (HMC)
146000
3 Polyvinyl Alcohol (PVA) 186000
4 PMMA 996000
5 Poly methyl pyrrolidone(PVP) 10000
Material Description:
Substrate: Glass slide of 2cm x2cm
Coated water dissolved polymers
substratePolymer
Characterization of polymer films produced at high speed of spin coating
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
AFM
CE 5950 Characterization of Construction Materials
Thickness t = 20nm to 515nm
Speed = 11000 rpm
Mallikarjunachari.G Date: 09/11/2012 17/25
Characterization of Polymer Surfaces and Interfaces
Ref: Nanotribology and Nanomechanics Bhrat Bhushan
Characterization of polymer films produced at high speed of spin coating
A schematic 3D description of an AFM
PropertyYoung's Modulus E(Gpa)
Diamond 900-1050
Si3N4 310
Si 130-188
W 350
Ir 530
Mechanics:
AFM cantilever force constant: 0.06 to 50 N/mAFM cantilever resonance frequency: 1 kHz to 1 MHz AFM cantilever length: 100 to 500 µmAFM cantilever width: 30 to 50 µmAFM cantilever thickness: 0.5 to 8 µm
Tip Material: Diamond, CNT, Quartz, Silicon oxide, Silicon NitrideShape: Pyramidal, Square, Rectangular, Circular
The principle of single-scratch tests
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Micro Slip
Nanotribology: experimental facts and theoretical models G V Dedkov
Mallikarjunachari.G Date: 09/11/2012 18/25
Characterization of Polymer Surfaces and Interfaces
Analysis of 1% HEC film using AFM
Topography of 1% HEC film Thickness of 1% HEC film obtained using one of the black spot on the film
AFM image showing thickness of the 1% HEC film.
3-Dimentional representation of 1% HEC film using AFM
Results and Discussion:
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 19/25
Characterization of Polymer Surfaces and Interfaces
Contd,
Fig: Topography of 10% PVP film(a) Topography looking at 10µm × 10µm of 10% PVP
film(b) Topography looking at 80µm × 80µm of 10% PVP
film
Fig: Graphs showing thickness of 10% PVP film.Thickness was obtained using 3 different areas on the
scratched film.
Analysis of 10% PVP film using AFM
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
t= 510nm 520nmMean t = 513.33
Mallikarjunachari.G Date: 09/11/2012 20/25
Characterization of Polymer Surfaces and Interfaces
Characterization of polymer films produced at high speed of spin coating
Author: Krunal Bhavsar Fina draft
Nanoindentation and adhesion of sol-gel-derived hard coatings on polyester
C.M. Chan, G.Z. Cao, a) H. Fong, and M. Sarikaya Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195 T. Robinson and L. Nelson Korry Electronics, Co., Seattle, Washington 98109
Cement Paste –epoxy interactions Fatma Djouani a , Carole Connan a , Michel Delamar a , Mohamed M. Chehimi a, *, Karim Benzarti b, * a Interfaces, Traitements, Organisation et Dynamique des Systèmes (ITODYS), University Paris Diderot & CNRS (UMR 7086), 15 rue Jean de Baïf, 75013 Paris, France b Université Paris Est, Laboratoire Central des Ponts & Chaussées (LCPC), PCM, 58 Bld Lefebvre, 75015 Paris, France
FTIR
AFM
NANOINDENTATION
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Mallikarjunachari.G Date: 09/11/2012 21/25
Characterization of Polymer Surfaces and Interfaces
Characterising Material System
Macro Indentation
Nano Indentation
How Nano-indentation: (10-9)
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
10 mmLoad 50-300 N
D
Micro to nanoLoad <1N
D
H = P/[ (p D2-d2 )/4]Units of stress, butNot stress,Not a physical measureIndicates resistance toplastic deformation
Ref: Nanotribology and Nanomechanics Bhrat Bhushan
Mallikarjunachari.G Date: 09/11/2012 22/25
Characterization of Polymer Surfaces and Interfaces
Mechanics and Limitations of Continuum Mechanics:
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Ref: Handbook of Nanoindentation by A.C.Fischer - Cripps
Mechanics
Limitations:
• Hardness
5.24
1
2
1* phdh
dPE
25.24 ph
PH
• Elastic modulus034.1
On failure of Continuum Plasticity theories on small scales
Ref: On failure of continuum plasticity theories on small scalesV. Berdichevsky a,, D. Dimiduk b
Order of Length Scale: 10-16 to 10-8 m
Order of no of participating atoms :10-6 to 10-8
Multiscale Analysis:
Mallikarjunachari.G Date: 09/11/2012 23/25
Characterization of Polymer Surfaces and Interfaces
Material Description:Substrate: Polyester
Coating Material: Silica based Hard Coatings
S.No.
Composition
1 SiO2
2 SiO2-5MPS
3 SiO2-33MPS
4 SiO2 – 17ZrO2
5 SiO2- 17TiO2
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
CE 5950 Characterization of Construction Materials
Possible Mechanism:
Mallikarjunachari.G Date: 09/11/2012 24/25
Characterization of Polymer Surfaces and Interfaces
CE 5950 Characterization of Construction Materials
Why Thin Films and Spin Coating?
Literature Survey and
Characterization
Overview of Results
Material Description and Technique used
Results and Discussion:
TABLE I. A composition and properties of sol-gel-derived silica- based coatings on modified polyester
substrates. Neither UV irradia- tion nor low-temperature heating was applied.
Mallikarjunachari.G Date: 09/11/2012 25/25
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