polyacrylic acid(paa), polyethylene glycol(peg) and ...€¦ · glycol(peg) and polyvinyl alcohol...
TRANSCRIPT
![Page 1: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/1.jpg)
Polyacrylic acid(PAA), Polyethylene glycol(PEG) and Polyvinyl alcohol (PVA)
Presenter: Rochelle Lawrence
Supervisor: Zhe Zhao, Keith Duncan
![Page 2: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/2.jpg)
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 3: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/3.jpg)
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 4: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/4.jpg)
From the Faujausite group Na2O.Al2O3.
(2.8±0.2)SiO2.(6~7)H2O (SiO2 : Al2O3 ≈2.6-
3.0)
Materials Science Research Group Department of Physics, UWI (Mona)
OXYGEN
SILICON
ALUMINIUM
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Removal of CO2 and moisture from air (air pre-purification) and other gases.
Separation of enriched oxygen from air.
Desiccant for medical and air compressor systems
Catalyze carrier
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 6: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/6.jpg)
• Investigate if polymers may be used instead of kaolin as binders in Zeolite 13X granulation
• Evaluate effect on pH on the zeolite-polymer slurries/granules
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 7: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/7.jpg)
•Solubility
•Non-toxicity
•Cost effectiveness
•Melting point PEG
PVA PAA
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 8: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/8.jpg)
1g of zeolite 13x added to 0.02g of polymer in 100ml
1 ml of solution diluted with 50 ml of water
Nitric acid and ammonia used as acid and base
Zeolite 13 X Average pH 9.75
Zeta potential – 40.625mV
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 9: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/9.jpg)
Graph 2 showing Zeta Potential versus pH (PEG)
-70
-60
-50
-40
-30
-20
-10
0
10
0 2 4 6 8 10 12
pH
Zet
a P
ote
nti
al
Graph 3 showing Zeta Potential versus pH (PVA)
-60
-50
-40
-30
-20
-10
0
10
0 2 4 6 8 10 12
pH
Zet
a p
ote
nti
al
Graph 1 showing zeta potential versus pH (PAA)
-80
-70
-60
-50
-40
-30
-20
-10
0
10
20
0 2 4 6 8 10 12
pH
Zet
a P
ote
nti
al
The isoelectric point is pH 5.54 The isoelectric point is at pH 5.02
The isoelectric point is 5.42
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 10: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/10.jpg)
Average value for Zeta Potential = - 48.2
mv Average value for Size =
998.9nm
milled for 6 hours
0.4g polyacrylic
acid + 20g of Zeolite 13X at
pH10.46
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 11: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/11.jpg)
Calcuated value in air =1.38 x10 -19 J
Calculated value in vacuum = 3.25 x 10-20J
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 12: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/12.jpg)
Polymer Sample
mass of polymer (g)
microL of NH3/HNO3 pH
mass of Zeolite (g)
PAA 1 0.3009 2.71 15.0042
2 0.3005 2400 10.05 15.0060
3 0.3030 100 1.54 15.0050
PVA 1 0.3002 6.25 15.0033
2 0.3074 100 10.30 15.0083
3 0.3014 23 3.89 15.0020
PEG 1 0.3005 5.81 15.0055
2 0.3013 20 2.28 15.0042
3 0.3001 100 9.86 15.0109
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 13: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/13.jpg)
Measuring absorption.......
Materials Science Research Group Department of Physics, UWI (Mona)
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Materials Science Research Group Department of Physics, UWI
(Mona)
PAA • HYAMINE
PVA • BORIC ACID
PEG • BARIUM CHLORIDE + IODINE
INDICATORS
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Graph 1 showing standard curve for PAA at 420nm
y = 0,0635x
R2 = 0,9855
0
0,05
0,1
0,15
0,2
0,25
0,3
0,35
0,4
0,45
0,5
0 1 2 3 4 5 6 7 8
PAA (ug/mL)
ab
so
rban
ce
Materials Science Research Group Department of Physics, UWI
(Mona)
Graph 2 showing standard curve of PEG at 661nm
y = 0,0031x
R2 = 0,9499
0
0,05
0,1
0,15
0,2
0,25
0,3
0,35
0 20 40 60 80 100 120
PEG (ug/mL)
ab
so
rban
ce
Graph 3 showing standard curve for PVA at 640nm
y = 0,0005x
R2 = 0,9669
0
0,05
0,1
0,15
0,2
0,25
0,3
0,35
0,4
0,45
0,5
0 100 200 300 400 500 600 700 800 900
PVA(ug/mL)
ab
so
rban
ce
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Intrusion technique…..
Materials Science Research Group Department of Physics, UWI (Mona)
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Materials Science Research Group Department of Physics, UWI (Mona)
0
10
20
30
40
50
60
PVA 1 PVA 1sin PVA 2bsin PVA 2bsin PVA 3a PVA 3asin
44 44 47 49 48 45
PEG 1 PEG 1sin PEG 2bsin PEG 2bsin PEG 3a PEG 3asin
45 38 46 44 49 45
PAA 1 PAA 1sin PAA 2bsin PAA 2bsin PAA 3a PAA 3asin
%
porosity
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• Zeta potential solutions more stable in basic conditions.
• Hamaker constant polymer may efficiently bind to the zeolite due to Van der Waals interactions.
• The UV-Vis measurements -PAA showed the least absorption while PVA had the most absorption.
• There is a %porosity ranged from 38-56% for the polymers PVA, PEG and PAA
Materials Science Research Group Department of Physics, UWI (Mona)
![Page 19: Polyacrylic acid(PAA), Polyethylene glycol(PEG) and ...€¦ · glycol(PEG) and Polyvinyl alcohol (PVA) Presenter: Rochelle Lawrence Supervisor: Zhe Zhao, Keith Duncan . Materials](https://reader035.vdocuments.us/reader035/viewer/2022071300/60892566d6d36c22c06a505a/html5/thumbnails/19.jpg)
• Mechanical properties to be tested: tensile modulus,
compressive strength, fracture analysis
• Binary System of Polymers • Characterisation techniques: X-ray diffraction, Scanning
Electron Microscope, CO2 adsorption
• Modeling with Computer Simulations-DVLO theory to evaluate Van Der Waals forces
Materials Science Research Group Department of Physics, UWI (Mona)
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Thank You
Materials Science Research Group Department of Physics, UWI (Mona)