Q: |
What is the importance of out gassing in applications for the aerospace industry, and NASA? |
A: |
Out gassing of VOC's as discussed in Question #1 above is exacerbated in outer space due to the major decrease in atmospheric pressure, i.e. high vacuum. Volatile materials boil at lower temperatures under reduced pressure. So, what might have been a high boiling VOC on Earth, may become very low boiling, i.e. easily out-gassed, in outer space. In addition to fogging up optics, windows, mirrors and the like, the out gassing may also cause adhesive failure of labels, allowing them to be "blown off" the objects they are adhered to, thereby rendering them useless as identifiers. |
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