×
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

Silica Dispersion

Silica Dispersion

Silica Dispersion

(OP)
I am experinecing some problem on the dispersion of silica in blends of EPDM/SBR, SBR/NBR and EPDM/EVA.
The products appeared to have different dispersions in teh different phases of elastomers. I tryed to check if a correlation like carbon black, based on structure and granulometry appeared on this filler, but it seens that no study in this respect are available.

The questions are:
We can use the same type of silica for every type of rubber? We do not have problem of phase dispersion like carbon black?
If not, do you know any paper related to this for rubber blends that you can recommend to me?

Thank you

Luis

RE: Silica Dispersion

Where are you based?  If the atmosphere in your region has high humidity then you will always have a problem with silica dispersion (silica absorbs moisture from the atmosphere very quickly once the bag is opened.  Have you thought about mixing the polymers with silica as separate masterbatches and then bringing them together for the final mix stage?

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