last set of notes
11 March 08 01:58 PM | Caroline Schauer | 0 Comments   
Enjoy!
Homework 3 and 4
28 February 08 12:48 PM | Caroline Schauer | 0 Comments   
This is due in class 03/06
Injection molding
25 February 08 09:37 AM | Caroline Schauer | 0 Comments   
Notes for Monday 2/25
Extrusion classnotes
27 January 08 04:07 PM | Caroline Schauer | 0 Comments   
Monday's class notes
Egg Drop rules
22 January 08 11:22 AM | Caroline Schauer | 0 Comments   

Please register your team by Feb 11th. See competition rules.

To these rules I add: You must use only polymers and have 4 differently processed polymers in your design. 

Homework 2 with extended due date.
22 January 08 11:00 AM | Caroline Schauer | 0 Comments   
I have extended homework 2's due date to Monday the 28th.
Attachment(s): Homework 2_2008.doc
Notes for 1/16
15 January 08 03:51 PM | Caroline Schauer | 0 Comments   

Here is what we will cover on Wed.

See you in class!

 

Attachment(s): 2. viscosity 2008.ppt
Books on reserve!
14 January 08 04:57 PM | Caroline Schauer | 0 Comments   

See the URL for the 6 books that are on reserve in the library for this class.

http://innopac.library.drexel.edu/search/r?SEARCH=mate315 

Homework 1 due in class 01/16/08
09 January 08 10:36 AM | Caroline Schauer | 0 Comments   
Here it is! The class notes and the internet should be very helpful for this.
Attachment(s): Homework 1_2008.doc
First class on Viscosity
09 January 08 10:26 AM | Caroline Schauer | 0 Comments   
Notes for Wed 01/09/08
Class Syllabus 2008
09 January 08 10:20 AM | Caroline Schauer | 0 Comments   
Here is a copy of the class syllabus.
Attachment(s): Class Syllabus 2008.doc
Introduction to Polymer Processing
09 January 08 10:15 AM | Caroline Schauer | 0 Comments   
1st class notes
Attachment(s): 1. Intro-2008.ppt
2008 class begins here!
07 January 08 01:54 PM | Caroline Schauer | 0 Comments   
Winter 2008 class notes will be above.
shear stress at the wall
06 March 07 08:44 PM | Caroline Schauer | 0 Comments   

It appears that when I asked the homework problem about shear stress in a capillary, how it is 0 in the center and maximum at the wall, we never discussed the equation.

So, here it is.

shear stress at the wall = -R/2(dP/dz)

Note that it is independent of material behavior. 

twin extruder barrel
06 March 07 11:00 AM | Caroline Schauer | 0 Comments   

This website has a diagram of the twin screw extruder barrel. http://www.wenger.com/English/Systems/Extrusion/C2TX/C2TX.asp

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