Which Materials Self-Decompose in Space Vacuum Conditions?

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Discussion Overview

The discussion revolves around identifying materials that can self-decompose in vacuum conditions, specifically focusing on their potential to lose mass and "vanish" over time. Participants explore the feasibility of such materials for applications in space, considering both anaerobic and vacuum environments.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant seeks materials that self-decompose in anaerobic conditions, specifically those that can turn into gas or be utilized by microorganisms.
  • Another participant questions the definition of "self-decompose" and the compatibility of anaerobic conditions with vacuum.
  • A suggestion is made that nuclear fuel might be relevant, though its applicability is unclear.
  • It is noted that anaerobic decomposition can occur with various polymers, such as cellulose and aliphatic polyesters, especially if nutrients are present.
  • A participant clarifies that they are interested in decomposition occurring in space, emphasizing the vacuum aspect rather than anaerobic conditions.
  • There is uncertainty about whether materials can decompose in vacuum conditions within a short timeframe, as the participant seeks confirmation on the feasibility of their idea.

Areas of Agreement / Disagreement

Participants express differing views on the definitions and conditions of decomposition, with some emphasizing the incompatibility of vacuum with life processes, while others focus on the potential for materials to decompose in space. The discussion remains unresolved regarding the existence of suitable materials.

Contextual Notes

There are limitations in the discussion regarding the definitions of anaerobic and vacuum conditions, and the assumptions about the time frame for material decomposition are not fully explored.

Who May Find This Useful

This discussion may be of interest to researchers and professionals in materials science, aerospace engineering, and environmental science, particularly those exploring waste management and material sustainability in space applications.

EskimoLolol
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Dear all,

Does anyone of you know the name of some materials that self-decompose in anaerobic conditions (spontaneus decay possibly) in a reasonable time? I'm researching a possible application for this kind of things.

Thank you in advance,

Regards,

D.
 
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Define "self-decompose".
 
I need something that, in anaerobic conditions, loses mass from its solid phase (i.e. turns into gas or is used by some sort of micro-organisms as nutrient) in a reasonable time:

basically I'd like my material to "vanish" after some time (again: in anaerobic vacuum conditions!)

I don't know if anything like this exists, but if anyone has some pointers I'd be grateful.
 
Nuclear fuel?
 
Anaerobic is not vacuum. Which is it... anaerobic or vacuum? Anaerobic decomposition can occur with any number of polymers such as cellulose (or rayon), aliphatic polyesters, aliphatic nylons and so forth. If nutrients are blended with these polymers, you have a head start on the process.
On the other hand, vacuum isn't compatible with life, anaerobic or otherwise.
 
I apologize in advance if I say something stupid and/or confusing, I'm a computer scientist, not an expert in the field, but I'm working in a team that still has to do its first meeting and I wanted to come with some ideas already :)

The "decomposition" is supposed to work in space (the human-made satellite orbits), so technically I think that vacuum is more of a precise description than anaerobic.

@chemisttree: You said that vacuum is not compatible with life, but I don't need my agents to live for a long time, just as much is required to consume my material: basically I want to bring a board of material in space in any desired stability condition, and once I put it "outside" my ship, it has to self-decompose in a matter of days possibly. Do you think this is possible?

@Schliere: could you elaborate your suggestion a little bit?

@All: Don't forget that you are talking to a dummy of the field :D Thanks in advance for your time and cooperation!
 

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