Plastics Addtitive-Prevent Deforamtion when warm.

[Linsey1]

Im looking for an addtive that can be mixed with Polypropylene during extrusion that will make it more resistant to deformation. Currently as temperature rises PP tends to deform.

 

[patprimmer]

That tends to be the nature of PP, but several things can be done, depending on why it is warping, and what compromises you can make.

What is the application.

At what temperature is this warping occuring.

Regards
pat

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.

 

[gambro]

Additives called Nucleating Agents can be used with PP to effect cristallization behavior and eliminate or at least minimize warpage. A leading manufacturer of such agents is Milliken Chemical.