A lacquer can be a protective coating consisting of a resin, cellulose ester, or both,
dissolved in a volatile solvent, sometimes with pigment added.
( I am developing a novel lacquer which contains a cellulose ester dissolved in a relatively non-volatile solvent ( +-limonene) along with water present. +- Limonene has been used in related paint firmulations where it has been substituted for turpentine.
Chemical research into novel paint formulations and reflectance spectroscopy.
Saturday, September 28, 2019
Friday, September 27, 2019
A Renewable Emulsified Paint Formulation
A solution of cellulose acetate-butyrate is prepared in limonene (oil of lemon) at 75-95 Deg. C.
The solution is poured into an aqueous solution of gelatine (equal volume) also at 75 degC.
Rapid stirring is need to form a stable emulsion.
I am currently optimizing this emulsion formulation.
A 1:1 solution of a commericial oil-based paint is stirred with the emulsion ( room temperature) for 2-3 minutes to form a uniform blend.
It was applied to cardstock and dried in 15-30 minutes at 20 Deg C.
Chitosan ( from crustacean chitin) can be added for bulk or impasto effect.
The paint dries to a hard surface and is impervious to water.
This lacquer is prepared from all bio-resource materials and contains no acrylics.
We will upload detail experimental procedure.
We place this in the public domain for artists and chemists to consider , but please cite our website!
Left: green paint formulation applied to cardstock 10-15 minutes before image captured.
Right: some chitosan added for bulk or more for impasto effect, if desired.
The solution is poured into an aqueous solution of gelatine (equal volume) also at 75 degC.
Rapid stirring is need to form a stable emulsion.
I am currently optimizing this emulsion formulation.
A 1:1 solution of a commericial oil-based paint is stirred with the emulsion ( room temperature) for 2-3 minutes to form a uniform blend.
It was applied to cardstock and dried in 15-30 minutes at 20 Deg C.
Chitosan ( from crustacean chitin) can be added for bulk or impasto effect.
The paint dries to a hard surface and is impervious to water.
This lacquer is prepared from all bio-resource materials and contains no acrylics.
We will upload detail experimental procedure.
We place this in the public domain for artists and chemists to consider , but please cite our website!
Right: some chitosan added for bulk or more for impasto effect, if desired.
Thursday, September 26, 2019
Earth Colors/ Cellulose Acetate-Butyrate Developmental Emulsion
Cellulose acetate-butyrate is converted into an O-W emulsion. A commerical gouache is blended into the lacquer. Application to cardstock provides a paint which dries in 15 minutes at 20 deg C.
It then becomes impervious to water contact.
Tuesday, September 24, 2019
Sunday, September 22, 2019
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