×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Polycarbonate regrind properties

Polycarbonate regrind properties

Polycarbonate regrind properties

(OP)
Can someone Please advise what mechanical properties are affected by adding regrind to Polycarbonate - and how?  Does Modulus go up?  I'm assuming that Yield Strength goes down.  Using Lexan 940. Thanks for any help!

RE: Polycarbonate regrind properties

Modulus goes up if you get cross linking.

Normally the thermal history and moisture contained in the resin while processing cause chain scisson and some cross linking and even some degradation to carbon.

This results in either an increase or decrease in tensile, depending on the degree of degradation. moderate degradation can increase tensile while more severe decreases it.

Modulus is increased.

Elongation and impact are decreased.

The material will lose clarity via a yellowing of the material.

MFI is increased.





 

Regards
Pat
See FAQ731-376: Eng-Tips.com Forum Policies for tips on use of eng-tips by professional engineers &
http://eng-tips.com/market.cfm
for site rules
 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources