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Polyurethane extrusion

Posted by Annirak

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Annirak

Polyurethane extrusion
December 03, 2008 09:32PM

Registered: 15 years ago
Posts: 401

Will the reprap extruder work with polyurethane rod or wire? Or will mods need to be made?

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Forrest Higgs

Re: Polyurethane extrusion
December 03, 2008 09:38PM

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Registered: 17 years ago
Posts: 1,915

Nobody has tried using it, to my knowledge. I thought that polyurethane was a thermosetting plastic rather than a thermoplastic, though. Are you sure you aren't talking about thermoplastic urethane (TPU)?

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Annirak

Re: Polyurethane extrusion
December 03, 2008 09:47PM

Registered: 15 years ago
Posts: 401

I believe that polyurethane is a thermoplastic, not a thermoset, or at least that some kinds of polyurethane are thermoplastics. I checked wikipedia and it has polyurethane listed on the thermoplastics page.

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Forrest Higgs

Re: Polyurethane extrusion
December 03, 2008 10:33PM

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Registered: 17 years ago
Posts: 1,915

All the polyurethanes that I've worked with to date have been thermosets. I was able to run across references to a urethane welding rod which can be used to repair thermoset polyurethane...

[www.urethanesupply.com]

and I found the material, itself.

[www.arizonatools.com]

I've had no experience with it whatsoever, though.

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Annirak

Re: Polyurethane extrusion
December 04, 2008 01:46AM

Registered: 15 years ago
Posts: 401

I'm hoping to use a two-part extrusion system, using both PLA and thermoplastic polyurethane.

The contact I've been talking to said that the TPU melted around 200C, would that be compatible with PLA extrusion?

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Forrest Higgs

Re: Polyurethane extrusion
December 04, 2008 11:02AM

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Registered: 17 years ago
Posts: 1,915

You'd have to ask Vik, that one. I've not worked with it personally. Keep in mind though that the melt temperature for plastics we've worked with this thus far is typically considerably less than what we have to attain to extrude them effectively.

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tpudogcollar

Re: Polyurethane extrusion
July 28, 2011 01:27AM

Our company mainly make the polyurethane extrusion, if you willing to provide some samples to us, then we can help you to trial them. Here is our site www.dgplasticextrusions.com