Go Back   Science Forums Biology Forum Molecular Biology Forum Physics Chemistry Forum > General Science Forums > Physics Forum
Register Search Today's Posts Mark Forums Read

Physics Forum Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


Carbon Black with Plastic ?

Carbon Black with Plastic ? - Physics Forum

Carbon Black with Plastic ? - Physics Forum. Discuss and ask physics questions, kinematics and other physics problems.


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-04-2005, 10:19 AM
hack_tick
Guest
 
Posts: n/a
Default Carbon Black with Plastic ?



I have read online few places that carbon black, when mixed with glass can
be used as conductor ? is the same applicable with plastic, what about the
changes in color and other properties ?

Also if i would like to do this same experiment at my place, what all
elements will i be requiring, any suggestions ??

perhaps some good link :-)

best regards


Reply With Quote
  #2  
Old 02-04-2005, 03:39 PM
Mark Fergerson
Guest
 
Posts: n/a
Default Carbon Black with Plastic ?

hack_tick wrote:

Never heard that one. Where'd you read it?


Yes; turns it black. Generally done for resistance to solar UV.


Just a good high-impedance multimeter (that can measure multiple
megohms) and whatever you can stick its leads onto. Frinst black PVC
pipe is recommended not to be used as a secondary coil form for Tesla
coils because it's a (really crappy) conductor.

Mark L. Fergerson
Reply With Quote
  #3  
Old 02-04-2005, 05:47 PM
Uncle Al
Guest
 
Posts: n/a
Default Carbon Black with Plastic ?

hack_tick wrote:

Not in glass per se. Glass does not wet graphite. Probably fiberglas
composite.

Any conductor mixed into any dielectric will show conductivity. There
will be a threshhold concentration, depending on the shape of the
conductive particles re percolation conduction, at which things take
off. If you want to lower the concentration threshhold, add
conductive fibers (e.g., graphite fiber chopped roving).

If you add carbon it turns black. If you don't like black try indium
tin oxide (with maybe 1% zirconia added when it is synthesized to
enhance conductivity).

--
Uncle Al
[Only registered users see links. ]
(Toxic URL! Unsafe for children and most mammals)
[Only registered users see links. ]
Reply With Quote
  #4  
Old 02-07-2005, 07:57 AM
hack_tick
Guest
 
Posts: n/a
Default Carbon Black with Plastic ?

hi,
"Uncle Al" <[Only registered users see links. ].net> wrote in message
news:[Only registered users see links. ].net...
[..]

will plastic retain its transparency ? if i am using one ? perhaps not..

and thank you for the previous answer :-)


Reply With Quote
Reply

Tags
black , carbon , plastic


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
How are black holes created? LARGE HADRON COLLIDER hanson Physics Forum 2 09-09-2008 06:19 PM
Chemist's technique enables creation of novel carbon nanoparticles... Bubba Do Wah Ditty Physics Forum 0 05-11-2004 12:42 PM
What kind of aromatic oil is used in carbon black process ? Zaz Chemistry Forum 2 01-09-2004 07:18 PM
Earth wobble related earthquake triggering Sept. 4, 2003 E.D.G. Physics Forum 1 09-05-2003 05:32 PM
Rice University's Chemical 'Scissors' Yield Short Carbon Nanotubes; New Process Yields Nanotubes Small Enough To Migrate Through Cells Do Wah Ditty Physics Forum 0 07-23-2003 12:56 PM


All times are GMT. The time now is 07:06 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 - 2012 Molecular Station | All Rights Reserved
Page generated in 0.13678 seconds with 16 queries