User:Karlena L. Brown/Notebook/PVOH Research/2013/04/12: Difference between revisions

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(Autocreate 2013/04/12 Entry for User:Karlena_L._Brown/Notebook/PVOH_Research)
 
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==PVOH Film Preparations==
==PVOH Film Preparations 2==
'''Prepared PVOH films in water:'''
'''RECALL FILM MAKING PROTOCOL ON 9/02/12'''
* In 10mL beaker, weigh out ~ 0.5 grams PVOH (MW 130,000)
'''(Actual Mass = 0.4934g)'''
* Then, using a graduated cylinder add ~ 3 mL H<sub>2</sub>O to the beaker
* In another 10mL beaker, weigh out ~ 1.0 gram PVOH (MW 130,000)
'''(Actual Mass = 0.9965g)'''
* Then, using a graduated cylinder add ~ 5 mL H<sub>2</sub>O to the beaker


'''Standard PVOH Film Protocol:'''
{| {{table}}
* After adding and combining PVOH (MW 130,000) in small beakers with H<sub>2</sub>O, add stir bars and prepare to stir solution.
| align="center" style="background:#f0f0f0;"|'''PVOH vs. Clay Ratio'''
* On hot plate, stir and heat both beaker solutions at 70-80°C for ~ 12 min or until PVOH dissolves.
| align="center" style="background:#f0f0f0;"|'''Clay Selection'''
* Once PVOH solids thoroughly dissolve in solution, pour each solution in a Teflon dish to sit, cool, and dry in a fume hood for ~ 1 day.  
| align="center" style="background:#f0f0f0;"|'''PVOH 146K Mass (g)'''
 
| align="center" style="background:#f0f0f0;"|'''Actual Clay Mass (g)'''
'''Notes:'''
| align="center" style="background:#f0f0f0;"|'''H<sub>2</sub>O Added (mL)'''
* An additional 2-3 mL H<sub>2</sub>O was added to each solution to aid the dissolving of the PVOH
|-
* Heat was reduced when solutions began to boil too rapidly
| 50:50||NaMT||0.26260||0.24770||8.0
* While transferring solutions to Teflon dishes, loss of sample within the small beakers (sample loss = incomplete sample transfer)
|-
| 90:10||NaMT||0.40100||0.12140||8.0
|-
| 50:50||Laponite||0.24750||0.24580||8.0
|-
| 90:10||Laponite||0.40580||0.10910||8.0
|-
| 90:10||110% CEC Laponite w/ DMHXLBR||0.25080||0.24850||8.0
|-
| 50:50||110% CEC Laponite w/ DMHXLBR||0.39820||0.10840||8.0
|}


==Notes==


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Revision as of 22:33, 14 April 2013

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PVOH Film Preparations 2

RECALL FILM MAKING PROTOCOL ON 9/02/12

PVOH vs. Clay Ratio Clay Selection PVOH 146K Mass (g) Actual Clay Mass (g) H2O Added (mL)
50:50 NaMT 0.26260 0.24770 8.0
90:10 NaMT 0.40100 0.12140 8.0
50:50 Laponite 0.24750 0.24580 8.0
90:10 Laponite 0.40580 0.10910 8.0
90:10 110% CEC Laponite w/ DMHXLBR 0.25080 0.24850 8.0
50:50 110% CEC Laponite w/ DMHXLBR 0.39820 0.10840 8.0

Notes


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