Materials List:
Bridging to Polymers:
Thermoset Lab
https://www.teachengineering.org/activities/view/uoh_polymer_lesson01_activity1
Thermoset Lab
Each group needs:
- 2 aluminum foil molds, ~ 12 mm X 8 mm X 100 mm, used to shape the epoxy for testing; make with standard aluminum foil (see the Procedure section)
- 2 paper cups
- felt tip pen
- 1 paper plate
- ~18 inches of heavy string
- 2 stirrers (see below)
- 2 - 3 ml syringes (see below)
- 2 - 12 ml syringes (see below)
- latex gloves, one pair per person
- safety glasses/goggles, one pair per person
- apron, one per person
- Thermoset Lab Worksheet, one per group
For class(s) to share:
- access to a fume hood
- 2 - 600 ml Pyrex® beakers for waste, such as this one for $11 each at https://www.flinnsci.com/beakers-borosilicate-glass-heavy-duty-600-ml/gp1049/
- slotted or hanging weight set, such as this one for $80 at https://www.flinnsci.com/slotted-weight-set-economy-choice/ob2067/ and https://www.flinnsci.com/hanger-slotted-weights/ap8856/
- 1-2 drying ovens, such as this one for $519 each at https://www.flinnsci.com/oven-laboratory-0.7-cubic-feet/ap1055/
- 100 wooden stirring sticks; such as these 100 for $1.50 at https://www.flinnsci.com/splints-wood-pkg.-of-100/ap4444/
- 2 tables or desks of equal height, for testing (see Figure 1)
- masking tape, few strips
- Thermoset Lab Presentation
- computer with internet connection and projection capabilities
Non-reusable supplies per class:
The following amounts provide enough material for one class of 30 students; multiple class periods require multiplying the quantities; in some cases, you may have materials left over.
- 250 g epoxy resin (Bisphenol A Diglycidyl Ether D.E.R. 332), for $44 at https://www.sigmaaldrich.com/catalog/product/sigma/31185?lang=en®ion=US
- 100 ml amine or hardener (Diethylenetriamine), for $33 at https://www.sigmaaldrich.com/catalog/product/sial/d93856?lang=en®ion=US
- 100 - 12 ml syringes without needles, for 95¢ each at https://www.flinnsci.com/syringe-without-needle-12-ml/ap1730/
- 100 - 3 ml syringes without needles, for 60¢ each at https://www.flinnsci.com/syringe-without-needle-3-ml/ap1728/