<p>Several scientific papers study FR-PLA (fire resistant PLA) in which Aluminium Hydroxide nanoparticles are melt blended into the PLA (example source: <a href="https://www.researchgate.net/publication/326872529_Advances_in_Flame_Retardant_PolyLactic_Acid" rel="nofollow noreferrer">Advances in Flame Retardant Poly(Lactic Acid)</a>. Would spraying the nanoparticles (dispersed in a liquid -<a href="https://www.us-nano.com/inc/sdetail/1094" rel="nofollow noreferrer">source</a> - maybe non flammable silicon oil) onto a 3D printed PLA help with fire resistance or not make a difference? </p>

CC BY-SA 4.0
2019-03-15T18:35:06.117Z
Why would spraying water help? It's not going to infuse the particles into the plastic. At best it would make an extremely thin useless layer.
Rafael
CC BY-SA 4.0
2019-03-15T18:39:19.117Z
We could disperse the particles in another liquid than water: https://www.us-nano.com/inc/sdetail/1094 Which liquid would stick onto PLA? Silicon oil maybe?
Arthur Mamou-Mani
CC BY-SA 4.0
2019-03-15T18:53:36.493Z
It has to be inside the pla. This is more a question for a material science Q&A site.
user77232
CC BY-SA 4.0
2019-03-15T19:23:09.253Z
@user77232 i have transferred the question to the physics Stack Exchange as well: https://physics.stackexchange.com/questions/466676/spraying-aluminium-hydroxide-nanoparticles-onto-pla-as-fire-retardant
Arthur Mamou-Mani
CC BY-SA 4.0
2019-03-16T02:50:51.110Z
That... is Material sciene and chemistry, not physics and not here...
Trish
CC BY-SA 4.0
2019-03-18T15:14:42.993Z
BTW,  "Fire Retardant" is **not** "FireProof" .  See the expose articles on cigarette smoking, fire-retardant furniture and bedding.  So long as there's an exposed heat source, fire-retardant material will continue to burn.  So the whole concept re PLA is pretty much pointless.
Carl Witthoft
<pla>
Spraying aluminium hydroxide nanoparticles onto PLA as fire retardant?
Arthur Mamou-Mani
# Spraying aluminium hydroxide nanoparticles onto PLA as fire retardant?

(Asked by: username_0 on 2019-03-15)

Several scientific papers study FR-PLA (fire resistant PLA) in which Aluminium Hydroxide nanoparticles are melt blended into the PLA (example source: [Advances in Flame Retardant Poly(Lactic Acid)](https://www.researchgate.net/publication/326872529_Advances_in_Flame_Retardant_PolyLactic_Acid). Would spraying the nanoparticles (dispersed in a liquid -[source](https://www.us-nano.com/inc/sdetail/1094) - maybe non flammable silicon oil) onto a 3D printed PLA help with fire resistance or not make a difference?

**Tags:** pla

> **Comments:**
> **username_1**: Why would spraying water help? It's not going to infuse the particles into the plastic. At best it would make an extremely thin useless layer.  
> **username_0**: We could disperse the particles in another liquid than water: https://www.us-nano.com/inc/sdetail/1094 Which liquid would stick onto PLA? Silicon oil maybe?  
> **username_2**: It has to be inside the pla. This is more a question for a material science Q&A site.  
> **username_0**: @username_2 i have transferred the question to the physics Stack Exchange as well: https://physics.stackexchange.com/questions/466676/spraying-aluminium-hydroxide-nanoparticles-onto-pla-as-fire-retardant  
> **username_3**: That... is Material sciene and chemistry, not physics and not here...  
> **username_4**: BTW,  "Fire Retardant" is **not** "FireProof" .  See the expose articles on cigarette smoking, fire-retardant furniture and bedding.  So long as there's an exposed heat source, fire-retardant material will continue to burn.  So the whole concept re PLA is pretty much pointless.  

---

## 0 answers

