1 Topic by paulowaisberg (edited by paulowaisberg 2018-11-15 23:07:36)

  • paulowaisberg
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Topic: Adding Citric acid and PE to PLA pellets

Hi,

I just bough some PLA pellets from Australian cardia bioplastics BL-F02 - the resseller said that, to make filament from this PLA you have to add 1% of citric acid and some PE to make it less brittle and adhere better to the heatbed.

Anyone tryed any of these 2 things to PLA? Does it make any sense?

Thank you!

2 Reply by genesat1 (edited by genesat1 2018-11-16 13:56:12)

  • genesat1
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Re: Adding Citric acid and PE to PLA pellets

I have heard of putting citric acid on a print bed and that making PLA stick to it better, but never putting it in the actual filament.  PE is a little flexible, but even if you got it evenly mixed I imagine that would only decrease bed adhesion because of its nonstick tendencies.  Personally I would try it by itself first.  Then if needed look for “PLA flex modifier”.  Put the citric acid on your build plate, not in your filament, if you end up needing to try it for build plate adhesion.

3 Reply by milehigh3dII

  • milehigh3dII
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Re: Adding Citric acid and PE to PLA pellets

Citric acid is sometimes used as a pigment dispersant, though 1% would be on the high side.