Re: glyoxal yellowing now: How do you know it's hard?

From: Ryuji Suzuki ^lt;>
Date: 02/05/05-02:04:34 AM Z
Message-id: <>

From: MARTINM <>
Subject: Re: glyoxal yellowing now: How do you know it's hard?
Date: Sat, 05 Feb 2005 05:28:43 +0100

> Another approach consists of using silane for the subbing: rub the
> (clean/degreased!) glass plate with a 1% freshly prepared acetone
> solution of 3-aminopropyltriethoxysilane over one or both sides with
> a tissue for about 1 min until the solvent has evaporated.

That's another good way to improve the adhesion on glass.

> Philippe Monnoyer recommended incorporating silane into a gelatin
> solution. It may be a good idea to add a small amount of that above
> mentioned silane mixture to your gum solution.

I think 3-aminopropyltriethoxysilane is incompatible with water or
admixtures consisting of water and hydrophillic molecules, and it
doesn't work like a surfactant, so I think a separate step is
necessary. So far I get excellent adhesion by my gelatin blend, so I
don't think I'll go to the trouble of an extra step...

Ryuji Suzuki
"People seldom do what they believe in.  They do what is convenient,
then repent." (Bob Dylan, Brownsville Girl, 1986)
Received on Sat Feb 5 02:04:52 2005

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