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Originally posted by djcarlosa
reply to post by weedwhacker
comment on the information where have you done that
all i see is comments on .......[/qauote]
so you acknowledge that he DID comment - and you've changed your story because you didn't like the outcome.
no great surprise - the chemtrail story keeps changing too
onlinelibrary.wiley.com...
Abstract
Exposure of poly(DL-lactic acid) (PDLLA), and related polymers, to supercritical CO2 (scCO2) at or below, physiological temperatures leads to very effective plasticization and liquefying of the polymers. The phenomenon arises from the high solubility and interaction of the scCO2 in the polymer. Under these unique conditions, temperature and solvent labile molecules can be mixed efficiently into the liquefied polymer. This liquefied polymer/drug/CO2 mixture can then be sprayed into a collecting chamber, and during this process particles of drug-loaded polymer are formed. This process is very different from rapid expansion and antisolvent based techniques that have been previously reported. In this article, we describe a method of controlling particle size during the spray process by introducing a backpressure of N2 in the collecting chamber. This backpressure dynamically regulates the loss of CO2 from the issuing polymer/CO2 mixture, leading to control over sprayed particle size. In situ observation of the viscosity of the plasticized polymer indicates that a backpressure of 68 bar or greater is necessary to ensure the production of fine particles. The influences of backpressure and saturation temperature on particle size for the sprayed products are discussed in terms of observed PDLLA/CO2 mixture viscosities. © 2004 Wiley-Liss, Inc. and the American Pharmacists Association J Pharm Sci 93: 1083–1090, 2004
Originally posted by djcarlosa
reply to post by Aloysius the Gaul
1.why are they doing it?
Its to reduce the amount of uv radiation reaching the earth's surface.
2.how can it be a worldwide project?
3.how can such a project be implemented [ie no. of planes worldwide]
No. Several types of craft are used. Commercial jet airliners are used and they are not diverted from their flight paths to do so. How the canisters and the spraying is done on this kind of craft is unknown to me exactly. I do have my suspicions.
All those who know are expected to remain silent.
All of those who suspect are either faced with trying to prove the virtually unprovable
i would like you to prove to me why the answers given are scientifically wrong after all there are 4 answers to questions often asked of us chemmies
Originally posted by GringoViejo
reply to post by djcarlosa
I don't know about the "project," but here is a use for polymers on planes, which is used as a coating.
Originally posted by GringoViejo
reply to post by Aloysius the Gaul
Yes, I know. Rayon, nylon, dacron, etc. all polymers.
I was trying to narrow it down to "testing" or "projects" which so far have all dealt with anti corrosion testing from the few searches I've done so far.