Polypropylene Fillers
Polypropylene Fillers
(OP)
I've been working with 20% talc filled polypropylene for moderately stiff printable materials. Is there a filler or compounded resin available that will grant a notably stiffer extruded product (without sacrificing tear and crack resistance)? Additionally, are there any suggestions for technique or materials that would decrease creep ('wavyness') of extruded PP/filler product? Thanks.





RE: Polypropylene Fillers
Talc is generally best at reducing warpage, and fibre is worst re warpage, as it greatly reduces shrinkage along the flow, but only moderately reduces it accross the flow
Regards
pat
RE: Polypropylene Fillers
http://www.plastics-ez.com/plastics/0055...
Maybe one is close and you can ask a rep round and pick their brains?
Are you blending new grades for re-sale? or for your companies specific use?
Can you talk to people like GE Plastics or BSAF?
Othersources the UK has the Plastic Advisory Service on 09061 90 80 70 (calls cost £1.50 per mimute)
Does the US have something similar?
J.
RE: Polypropylene Fillers
Try "Glass Bead" for a filler.
I would tell you where you could get it from, but "PATPRIMMER" may rip into me again for believing that I am trying to do some advertising.
RE: Polypropylene Fillers
I only know of one source, and that is from some very old info, so I promise I won't rip into anybody for identifying a source.
If more than one source is known, I think it is appropriate to identify all possible sources, so as to avoid the appearance of commercial any commercial motive
Regards
pat
RE: Polypropylene Fillers
Warpage is usually caused by differential shrinkage, irregular crystallisation, and polymer orientation. Talc will not stop warpage.