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!

*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.

Jobs

PP 30%Glass filled

PP 30%Glass filled

(OP)
Hey, I'm facing the problem to improve the tensile strength and flexural strength of PP 30%Glass filled. The glass fibre seems to be no effect in the PP as the tensile strength and flexural strength is low. Please suggest me any solution for this matter. Thank you very much.

ST

RE: PP 30%Glass filled

Glass filled is not the same as glass reinforced. The glass needs to be coupled to the polymer. Depending on your part size you could have a look at long-fibre glass reinforced grades.

www.tynevalleyplastics.co.uk

Politicians like to panic, they need activity. It is their substitute for achievement.

RE: PP 30%Glass filled

Glass fiber is very effective at making PP stiffer and stronger. That's measured and products are widely available. If you are seeing no change then most likely the glass fiber was destroyed during compounding. That happens when the fiber is added at the main feed throat where the polymer is not yet molten. That grinds up the fiber until it's no longer a fiber. Instead it must be added into the melt further down the extruder. As Pud mentioned, coupling agents can also be used to improve the bonding and strength. If you're interested I have free webinars (same as the ones I sell for $500 each) on my website under the free training tab. That explains all about the effects of fillers and coupling agents.

Chris DeArmitt PhD FRSC
President

Plastic materials consultant to the Fortune 100
www.phantomplastics.com

RE: PP 30%Glass filled

The fiber can also be chopped up by running the screw in the molding machine too fast. It might be worth while to get a molding guide from the resin supplier and go over it with your molder.

Rick Fischer
Principal Engineer
Argonne National Laboratory

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


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close