Week 4:
This week we received the load cells for the construction of the table top stress gauge. There was also a discussion on what the best method of design for the gauge would be, and that is using Lego NXT. This was decided to be the best option due to a few factors. Using a kawabota machine would be the best option due to its great accuracy, but our group does not have access to it. K'Nex could also be used to design the table top tester, but we have never programmed them before, and the materials would be harder to access. Because of these reasons NXT would be the best due to the ease of acquiring parts and the familiarity with programming.
Lynn and Denisse have taken their lab safety tests online, so they can electrospin the fibers in week 5. We have decided to create between 3-5 fibers depending on the way they spin in the lab. The plan is to have the electrospinning done by week 6.
Sunday, April 29, 2012
Thursday, April 19, 2012
Week 3:
This week we finalized the plan for the project. Polyethylene, and polyethylene compounded with carbon black will be electrospun in the Materials Science and Engineering Department within the next 2 weeks. Two Lego NXT Mindstorms kits were signed out of the engineering lab to create the stress and strain tester. A strain gauge and load cell were acquired from the Materials Department to be used in the Lego design of our table top strength tester for the fibers electrospun.
This week we finalized the plan for the project. Polyethylene, and polyethylene compounded with carbon black will be electrospun in the Materials Science and Engineering Department within the next 2 weeks. Two Lego NXT Mindstorms kits were signed out of the engineering lab to create the stress and strain tester. A strain gauge and load cell were acquired from the Materials Department to be used in the Lego design of our table top strength tester for the fibers electrospun.
Thursday, April 12, 2012
Week 2:
- It has been decided that the main point of our design is to create a stronger tensile strength polyethylene compound.
- After doing some research on fillers for polyethylene plastics, our group has decided to compound it with carbon black, wood flour, and fiberglass filler.
- Below are links and PDFs used during our research:
- http://www.ars.usda.gov/research/publications/publications.htm?seq_no_115=266977
- http://solutions.3m.com/wps/portal/3M/en_US/Marine/Home/Products/Catalog/?PC_7_RJH9U5230GE3E02LECIE20S4K7000000_nid=GSQ4PDDZ67be9FJFL5HG9Dgl
- http://onlinelibrary.wiley.com/doi/10.1002/app.20443/pdf
- http://onlinelibrary.wiley.com/doi/10.1002/pen.760190106/pdf
- http://www.springerlink.com/content/g17x57811743m210/
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