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Webmaster
Posted: Wed Aug 13, 2003 9:17 am
Guest
I need to glue or bond two pieces of polycarbonate forms together. The bond
needs to be very strong since it will carry considerable loads. Is there a
procedure or a strong gluing or bonding method for this?

Another question, if I want to melt and reuse drink water bottles made of
polycarbonate, how could I do that? What would be the melting point of this
polymer?
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Michael Erwerle
Posted: Wed Aug 13, 2003 12:32 pm
Guest
Quote:
I need to glue or bond two pieces of polycarbonate forms together. The bond
needs to be very strong since it will carry considerable loads. Is there a
procedure or a strong gluing or bonding method for this?


shurely are there diffrent methods, but what is very strong
and which loads?
Is there a chence to change the construction?
what is about the opticakl properties of teh bonding?

Quote:
Another question, if I want to melt and reuse drink water bottles made of
polycarbonate, how could I do that? What would be the melting point of this
polymer?

the melting point will be lower than the melting point of the original
Material...
But nobody can Tell you 184°C or so..

nobody knows if there was used regenartete PC for the bottles and nobody knows
haow the bottles was made...

Michael
I am not a bug I am a undocumented feature
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Webmaster
Posted: Fri Aug 15, 2003 9:49 am
Guest
Today I purchased and did some tests with Metheylene
Chloride(Dichlormethane) but no success. Using it as a glue did not work.
Then I cut short strips of Polycarbonate and left them in Metheylene
Chloride. It is now about 3 hours. There is some gas coming out because
everytime I open the lid of the jar I hear the popping sound of the gas
coming out. But the strips seem to be intact.

What am I missing?

Thanks

Billy Hiebert <bh@hieberts.com> wrote in message
news:3F3AC87A.7090602@hieberts.com...
Quote:
Metheylene Chloride(Dichlormethane is the solvent commonly used for
solvent cementing of polycarbonate. If properly done, it should produce
a strong bond.
--
Billy Hiebert
HIEBERT SCULPTURE WORKS
Small Part Injection Molding
http://www.hieberts.com

Webmaster wrote:

I need to glue or bond two pieces of polycarbonate forms together. The
bond
needs to be very strong since it will carry considerable loads. Is there
a
procedure or a strong gluing or bonding method for this?

Another question, if I want to melt and reuse drink water bottles made
of
polycarbonate, how could I do that? What would be the melting point of
this
polymer?




Back to top
Billy Hiebert
Posted: Fri Aug 15, 2003 10:34 am
Guest
Are you sure that your jars are polycarbonate? Polycarbonate will
dissolve in metheylene Chloride, so the test strips should show signs of
softening and be very gooey in a short time, like a few minutes. Have
you done a test to be sure you are working with polycarbonate?
--
Billy Hiebert
HIEBERT SCULPTURE WORKS
Small Part Injection Molding
http://www.hieberts.com

Webmaster wrote:

Quote:
Today I purchased and did some tests with Metheylene
Chloride(Dichlormethane) but no success. Using it as a glue did not work.
Then I cut short strips of Polycarbonate and left them in Metheylene
Chloride. It is now about 3 hours. There is some gas coming out because
everytime I open the lid of the jar I hear the popping sound of the gas
coming out. But the strips seem to be intact.

What am I missing?

Thanks

Billy Hiebert <bh@hieberts.com> wrote in message
news:3F3AC87A.7090602@hieberts.com...

Metheylene Chloride(Dichlormethane is the solvent commonly used for
solvent cementing of polycarbonate. If properly done, it should produce
a strong bond.
--
Billy Hiebert
HIEBERT SCULPTURE WORKS
Small Part Injection Molding
http://www.hieberts.com

Webmaster wrote:


I need to glue or bond two pieces of polycarbonate forms together. The

bond

needs to be very strong since it will carry considerable loads. Is there

a

procedure or a strong gluing or bonding method for this?

Another question, if I want to melt and reuse drink water bottles made

of

polycarbonate, how could I do that? What would be the melting point of

this

polymer?






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Uncle Al
Posted: Sat Aug 16, 2003 11:08 am
Guest
Webmaster wrote:
Quote:

Today I purchased and did some tests with Metheylene
Chloride(Dichlormethane) but no success. Using it as a glue did not work.
Then I cut short strips of Polycarbonate and left them in Metheylene
Chloride. It is now about 3 hours. There is some gas coming out because
everytime I open the lid of the jar I hear the popping sound of the gas
coming out. But the strips seem to be intact.

What am I missing?

Methylene chloride has a low boling point. When you open the jar you
are venting vapor pressure. Methylene choride absolutely eats
polycarbonate, ditto poly (methyl methacrylate), polystyrene, ABS...
It softens epoxies. Polyolefins and teflons are resistant to it.

Do you know what polymer you have? Do you have PET rather than PC?

A better "glue" is to dissolve some polymer in the solvent to make a
more viscous "dope," then syringe a thin line along the areas to be
bonded, then press together overnight. The higher viscosity of and
slower evaporation of solvent from a dope makes it easier to handle -
Duco Cement.

If you have strain in your plastic the solvent will trigger crazing -
crack formation as the stress relaxes.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
"Quis custodiet ipsos custodes?" The Net!
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Doug Goncz
Posted: Sun Aug 24, 2003 3:37 pm
Guest
Polycarbonate can be carefully welded with a thin stream of heated air. Harbor
Freight sells the welder for forty dollars. You'll need a small air compressor,
the kind used for air brushes.



Yours,

Doug Goncz, Replikon Research, Seven Corners, VA

The hormones work at different speeds: In a fight-or-flight scenario,
glucocorticoids are the ones drawing up blueprints for new aircraft carriers;
epinephrine is the one handing out guns.
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mullens
Posted: Tue Aug 26, 2003 2:54 am
Guest
Webmaster wrote:
Quote:

Today I purchased and did some tests with Metheylene
Chloride(Dichlormethane) but no success. Using it as a glue did not work.
Then I cut short strips of Polycarbonate and left them in Metheylene
Chloride. It is now about 3 hours. There is some gas coming out because
everytime I open the lid of the jar I hear the popping sound of the gas
coming out. But the strips seem to be intact.

What am I missing?

Thanks

Billy Hiebert <bh@hieberts.com> wrote in message
news:3F3AC87A.7090602@hieberts.com...
Metheylene Chloride(Dichlormethane is the solvent commonly used for
solvent cementing of polycarbonate. If properly done, it should produce
a strong bond.
--
Billy Hiebert
HIEBERT SCULPTURE WORKS
Small Part Injection Molding
http://www.hieberts.com

Webmaster wrote:

I need to glue or bond two pieces of polycarbonate forms together. The
bond
needs to be very strong since it will carry considerable loads. Is there
a
procedure or a strong gluing or bonding method for this?

Another question, if I want to melt and reuse drink water bottles made of
polycarbonate, how could I do that? What would be the melting point of this
polymer?

Some of my drinks bottles are marked "PET" - I don't think that any are
polycarbonate.

Try your experiment with an old CD.

I have some "EVO-PLAS EXTRU-FIX" which will glue polycarbonate. The data sheet
says that it contains a blend of specially formulated solvents including
dichloromethane and nitroethane. I keep it in the fridge ready for use.
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