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Science Forum Index » Materials Forum » Field guide to the plastics?
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| cycjec |
 Posted: Sun Oct 07, 2007 4:47 pm |
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or perhaps, "certain synthetics" ?
Is there such a reference, on-line or otherwise?
Given a name of a substance, one can easily find out
more about it.
I have realized I live surrounded by substances commonly
called "plastics" but have no idea what most of them
actually are, in particular the large cup "kvort" (see
link) which I found out recently is quite dramatically
flammable, unlike e.g. the microwave dishes and other
items. Fortunately, the kvort was in a big deep sink.
http://www.judaica-world.com/product.asp?dept=212&Product=kv |
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| Mark Thorson |
| Posted: Mon Oct 08, 2007 2:54 pm |
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cycjec wrote:
Quote:
I have realized I live surrounded by substances commonly
called "plastics" but have no idea what most of them
actually are, in particular the large cup "kvort" (see
link) which I found out recently is quite dramatically
flammable, unlike e.g. the microwave dishes and other
items. Fortunately, the kvort was in a big deep sink.
It would be difficult for an amateur to identify
most plastics with a high degree of confidence,
because the properties are so dependent on the
filler. Although some plastics, like the silicones
and PTFE, have properties that often allow them
to be identified reliably, most other plastics
have diverse properties even within the same
family. For example, polyurethane can be made
as hard as a baseball bat or softer than a pencil
eraser. Same thing for epoxy. |
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| cycjec |
| Posted: Sat Oct 13, 2007 7:21 pm |
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Mark Thorson <nospam@sonic.net> wrote:
Quote: cycjec wrote:
I have realized I live surrounded by substances commonly
called "plastics" but have no idea what most of them
actually are.
It would be difficult for an amateur to identify
most plastics with a high degree of confidence,
because the properties are so dependent on the
filler.
Thanks. |
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