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Can Trashed CF Bikes Be Recycled?



 
 
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  #1  
Old July 25th 09, 04:39 PM posted to rec.bicycles.tech
bicycle_disciple
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Posts: 247
Default Can Trashed CF Bikes Be Recycled?

What happens when one destroys a carbon fiber frame? Is there any hope
for recycling, if the cost and possibility of repair is beyond
practicality? Can the bicycle industry emulate things that the
aerospace industry is doing in this regard, or do they frankly don't
care? This topic is discussed here. http://tiny.cc/1o63H Further
discussions would be welcome here or at the link cited.


BD
Ads
  #2  
Old July 26th 09, 12:06 AM posted to rec.bicycles.tech
Brewster Fong
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Posts: 78
Default Can Trashed CF Bikes Be Recycled?

On Jul 25, 8:39*am, bicycle_disciple
wrote:
What happens when one destroys a carbon fiber frame? Is there any hope
for recycling, if the cost and possibility of repair is beyond
practicality? Can the bicycle industry emulate things that the
aerospace industry is doing in this regard, or do they frankly don't
care? This topic is discussed here.http://tiny.cc/1o63H* Further
discussions would be welcome here or at the link cited.

Before I "trash" any carbon fiber frame, I would have it checked by
Calfee to see if they can repair it. Calfee has repaired over 2100
carbon frames of all makes! For more info, go he

http://www.calfeedesign.com/howtosendrepair.htm

Good Luck!



  #3  
Old July 26th 09, 12:14 AM posted to rec.bicycles.tech
someone
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Posts: 2,340
Default Can Trashed CF Bikes Be Recycled?

On 25 July, 16:39, bicycle_disciple wrote:
What happens when one destroys a carbon fiber frame? Is there any hope
for recycling, if the cost and possibility of repair is beyond
practicality? Can the bicycle industry emulate things that the
aerospace industry is doing in this regard, or do they frankly don't
care? This topic is discussed here.http://tiny.cc/1o63H* Further
discussions would be welcome here or at the link cited.

BD


Should make good fuel source. Would need some sort of enclosed
cruncher to make the bits suitable for a stove. Stitch up a sack
around the frame and go to work with a club hammer.
  #4  
Old July 26th 09, 06:47 AM posted to rec.bicycles.tech
Tim McNamara
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Posts: 6,945
Default Can Trashed CF Bikes Be Recycled?

In article
,
Brewster Fong wrote:

On Jul 25, 8:39*am, bicycle_disciple
wrote:
What happens when one destroys a carbon fiber frame? Is there any
hope for recycling, if the cost and possibility of repair is beyond
practicality? Can the bicycle industry emulate things that the
aerospace industry is doing in this regard, or do they frankly
don't care? This topic is discussed here.http://tiny.cc/1o63H*
Further discussions would be welcome here or at the link cited.

Before I "trash" any carbon fiber frame, I would have it checked by
Calfee to see if they can repair it. Calfee has repaired over 2100
carbon frames of all makes! For more info, go he

http://www.calfeedesign.com/howtosendrepair.htm

Good Luck!


If it can be done, that would seem to me to be a better solution than
landfilling a frame. Calfee's been doing CF for a long time now, longer
than most.
  #5  
Old July 26th 09, 08:15 AM posted to rec.bicycles.tech
Michael Press
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Posts: 9,202
Default Can Trashed CF Bikes Be Recycled?

In article
,
bicycle_disciple wrote:

What happens when one destroys a carbon fiber frame? Is there any hope
for recycling, if the cost and possibility of repair is beyond
practicality? Can the bicycle industry emulate things that the
aerospace industry is doing in this regard, or do they frankly don't
care? This topic is discussed here. http://tiny.cc/1o63H Further
discussions would be welcome here or at the link cited.


There is no recycling. The resin is cross linked polymer.
It can be ground into land fill or incinerated. There is
no chemical pathway to something useful; only to atoms
and a devils brew of toxic fumes.

--
Michael Press
  #6  
Old July 26th 09, 01:01 PM posted to rec.bicycles.tech
someone
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Posts: 2,340
Default Can Trashed CF Bikes Be Recycled?

On 26 July, 02:04, Still Just Me -
wrote:
On Sat, 25 Jul 2009 16:14:36 -0700 (PDT), someone

wrote:
Should make good fuel source. *Would need some sort of enclosed
cruncher to make the bits suitable for a stove. *Stitch up a sack
around the frame and go to work with a club hammer.


Somehow I'm thinking that burning those resins produces toxic fumes.


But think of the heat.
  #7  
Old July 26th 09, 01:04 PM posted to rec.bicycles.tech
someone
external usenet poster
 
Posts: 2,340
Default Can Trashed CF Bikes Be Recycled?

On 26 July, 08:15, Michael Press wrote:
In article
,

*bicycle_disciple wrote:
What happens when one destroys a carbon fiber frame? Is there any hope
for recycling, if the cost and possibility of repair is beyond
practicality? Can the bicycle industry emulate things that the
aerospace industry is doing in this regard, or do they frankly don't
care? This topic is discussed here.http://tiny.cc/1o63H* Further
discussions would be welcome here or at the link cited.


There is no recycling. The resin is cross linked polymer.
It can be ground into land fill or incinerated. There is
no chemical pathway to something useful; only to atoms
and a devils brew of toxic fumes.

Back to wooden frames then for the ecological concience.
  #8  
Old July 26th 09, 01:42 PM posted to rec.bicycles.tech
Nate Nagel[_2_]
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Posts: 1,872
Default Can Trashed CF Bikes Be Recycled?

someone wrote:
On 26 July, 08:15, Michael Press wrote:
In article
,

bicycle_disciple wrote:
What happens when one destroys a carbon fiber frame? Is there any hope
for recycling, if the cost and possibility of repair is beyond
practicality? Can the bicycle industry emulate things that the
aerospace industry is doing in this regard, or do they frankly don't
care? This topic is discussed here.http://tiny.cc/1o63H Further
discussions would be welcome here or at the link cited.

There is no recycling. The resin is cross linked polymer.
It can be ground into land fill or incinerated. There is
no chemical pathway to something useful; only to atoms
and a devils brew of toxic fumes.

Back to wooden frames then for the ecological concience.


AFAIK scrap steel and aluminum still have value... I'd be surprised if
Ti didn't as well...

nate

--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel
  #9  
Old July 26th 09, 02:19 PM posted to rec.bicycles.tech
someone
external usenet poster
 
Posts: 2,340
Default Can Trashed CF Bikes Be Recycled?

On 26 July, 13:42, Nate Nagel wrote:
someone wrote:


*Back to wooden frames then for the ecological concience.


AFAIK scrap steel and aluminum still have value... I'd be surprised if
Ti didn't as well...


The energy costs for processing, supply and return are higher than
with wood. Wood always has a useful end function of safe combustion
if it cannot otherwise be re-used or repaired locally (unlikely).
There are no return transport costs, Its high stiffness/energy cost
ratio is leagues above metal processing, especially bauxite
processing. Then there is, on top of this, the positive effect of
forestry management. The extensive use of timber in the USA should
have extended to common bicycle construction. The styles favoured,
immitating motorcycles, are certainly suitable for timber
construction. There is much to be said for a locally constructed
product made from a more natural resource.
  #10  
Old July 26th 09, 05:58 PM posted to rec.bicycles.tech
someone
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Posts: 2,340
Default Can Trashed CF Bikes Be Recycled?

On 26 July, 16:29, Still Just Me -
wrote:
On Sun, 26 Jul 2009 06:19:33 -0700 (PDT), someone

wrote:
AFAIK scrap steel and aluminum still have value... I'd be surprised if
Ti didn't as well...


The energy costs for processing, supply and return are higher than
with wood. *Wood always has a useful end function of safe combustion
if it cannot otherwise be re-used or repaired locally (unlikely).
There are no return transport costs, Its high stiffness/energy cost
ratio is leagues above metal processing, especially bauxite
processing. *Then there is, on top of this, the positive effect of
forestry management. *The extensive use of timber in the USA should
have extended to common bicycle construction. *The styles favoured,
immitating motorcycles, are certainly suitable for timber
construction. *There is much to be said for a locally constructed
product made from a more natural resource.


Once you put a painted or other finish on the wood, it becomes
unburnable at the home level. Steel and Aluminum are always
recycleable (although not at home).


The answer as always is linseed oil. This is easily combustible and
safe at the home level.
 




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