Three
plastic screw top jars were chosen because they were useful for mixing and
storing the final products. Graphite powder was added to each jar. Three
different mediums were selected for testing.
Elmer’s Glue-All was added to the first jar and mixed with a clean wooden toothpick. Glue was added until a spreadable consistency was reached. A thin line of glue/graphite was made with the toothpick as a stylus. A wider line was also made before the toothpick was wiped off and all three samples were allowed to dry.
To complete the experiment a control sample should be done with commercially available conductive paint. A uniform application method would also be advantageous.
- Elmer’s Glue-All
- Titebond III wood glue
- Acrylic paint
Materials and containers
Graphite filled jars
Elmer’s Glue-All was added to the first jar and mixed with a clean wooden toothpick. Glue was added until a spreadable consistency was reached. A thin line of glue/graphite was made with the toothpick as a stylus. A wider line was also made before the toothpick was wiped off and all three samples were allowed to dry.
Adding glue to graphite
Mixing glue and graphite
Glue samples set to dry
Video to show consistency of Glue-All mixture
Titebond
III was added to the first jar and mixed with a clean wooden toothpick. This
glue had a more liquid consistency than Elmer’s Glue-All so less was needed. Graphite
powder was added until a spreadable consistency was reached. A thin line of
glue/graphite was made with the toothpick as a stylus. A wider line was also
made before the toothpick was wiped off and all three samples were allowed to
dry.
Adding Titebone III to graphite
Mixing Titebond III and graphite
Adding more graphite to mixture
Titebond III samples set to dry
Video to show consistency of Titebond III mixture
Acrylic
paint was added to the first jar and mixed with a clean wooden toothpick. Glue
was added until a spreadable consistency was reached. A thin line of
glue/graphite was made with the toothpick as a stylus. A wider line was also
made before the toothpick was wiped off and all three samples were allowed to
dry.
Adding acrylic paint to graphite
Acrylic paint samples set to dry
Video to show consistency of paint mixture
The
nine samples were dried under light air movement. The jars were sealed and
labeled. The samples dried for thirty minutes. Ohmmeter probes were fastened
together to ensure the readings would be consistent fixing the distance between
the probe tips.
Fastened probes
Toothpick
|
Thick
line
|
Thin
line
|
|
Elmer’s
Glue-All
|
17.33KΩ
|
59.0KΩ
|
17.4KΩ
|
Titebond
III
|
174.4KΩ
|
61.4KΩ
|
97.6KΩ
|
Acrylic
paint
|
1.197KΩ
|
0.145KΩ
|
0.819KΩ
|
Glue samples being tested
Titebond III samples being tested
Acrylic paint samples being tested
To complete the experiment a control sample should be done with commercially available conductive paint. A uniform application method would also be advantageous.
To
do:
- Confirm readings after a longer drying period
- Perform control samples
- Devise applicator method
Journal page 1
Journal page 2
A list showing of all the final posts of COMPLETED projects.
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