Hi Kevin,Yes I am doing it for microfluidic devices. The challenge I have is
that I need bonding between glass and FEP without changing color, later I will
be analyzing the fluids inside. I was laminating FEP to glass thermally but
there was NO bonding. Now i read a lot about silanes which are helpful in
bonding glass with other polymers.
If Sodium Naphthalene works I can use it on one side of FEP. I will read more
about silanes though, if I find suitable one, it will be easy to proceed.thanks,

> From: kevin.paul.nichols@gmail.com
> Date: Wed, 18 Sep 2013 14:00:26 -0700
> To: mems-talk@memsnet.org
> Subject: Re: [mems-talk] adhesion agents
>
> APTES and HMDS won't buy you anything for bonding FEP or PTFE to
> glass. Don't worry about the glass surface much. To bond FEP to glass, you
> first need to rip off the flourine from the surface of the FEP. Sodium
> Naphthalene does that very well. You'll use warm Sodium Naphthalene and dip
> the FEP you want to bond in that. The FEP will turn brownish, and it'll
> then be bondable by epoxy, etc. Any surface that doesn't contact the Sodium
> Naphthalene will still be hydrophobic. Sodium Naphthalene is explosive if
> it contacts fluorocarbon oil, so make sure none of that is around (which it
> would probably only be if you're doing this for a microfluidic device).
>
>
> On Wed, Sep 18, 2013 at 9:32 AM, Bill Moffat
> wrote:
>
> > Hi,there are numerous silanes that can act as a bonding agent for Polymers
> > to glass.  The most common one is Amino Propyl Tri Ethoxy Silane, APTES.
> >  It has a different vapor pressure to HMDS the most common bonding silane
> > for photoresist.  A common process is APTES vapor, Polymer coating then
> > bake up to 450 degrees C with no problems.  Bill Moffat
> >
> > -----Original Message-----
> > From: mems-talk-bounces+bmoffat=yieldengineering.com@memsnet.org [mailto:
> > mems-talk-bounces+bmoffat=yieldengineering.com@memsnet.org] On Behalf Of
> > Fahd Ali
> > Sent: Wednesday, September 18, 2013 2:08 AM
> > To: mems-talk@memsnet.org
> > Subject: [mems-talk] adhesion agents
> >
> > Hi,
> > I am searching for a silane coupling agent for the bonding of glass and
> > polymer (FEP films) . For bonding purposes I have to go up to 260°C, are
> > there coupling agents or adhesives available which can stand this
> > temperature.
> >
> > kind regards,
> > -----------------------------------------------
> > Fahd Ali
> >
> >
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