Amides

[enegola]

Are amides available as compounds that can be added to a melt extruder of polypropylene to enable the PP to dye with acid dye? What percentage shoud be added?

 

[Demon3]

I would not add nylon to PP if you want to make fibres. The two polymers will not mix at all and what you will probably get is a fibre with terrible mechanical properties. As I mentioned in the other thread, you can try maleated PP.

If you must blend PP and nylon you will need a compatibilizer. Maleated PP may work as a compatibilizer for PP and nylon.


There is not any memory with less satisfaction than the memory of some temptation we resisted.
- James Branch Cabell

 

[Pud]

"Orgalloy" (tm) made by Elf Atochem (or whoever owns them now)
is a PP/PA6 alloy ( I think they make a PA66/PP version) - 9% lighter than nylon, not as water absorbent though, chemical resistance about as PP.

Good mechanical properties

No idea about dyeing though.........

Cheers

Harry

 

[Demon3]

Interesting Pud, I didn't know that. Elf Atochem also makes the maleated PP (Orevac) that I mentioned, so they probably use that as compatibiliser.


There is not any memory with less satisfaction than the memory of some temptation we resisted.
- James Branch Cabell

 

[patprimmer]

I should have remembered that. I once experimented with Orgalloy to make a 4 layer film on a 3 layer line by using Orgalloy and eliminating the tie layer.

Regards

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