Please wait.'

Page is loading'


Home  > Raw materials & technologies  > Technologies  > Powder coatings  > Characterising filled powders for powder c...

Sunday, 15 September 2019
pdf
Raw materials & technologies, Technologies, Powder coatings

Characterising filled powders for powder coating of paper

Friday, 24 April 2015

The purpose of a study was to evaluate the feasibility of using highly filled powders with 100 parts per weight of calcium carbonate and 10 parts per weight of polymer, acting as binder, as electrostatically applied paper coatings.

Such powders prepared by different methods were evaluated as being suitable for electrostatic coating.

Porosity similar to paper coatings can be achieved

Powders compacted at elevated temperatures demonstrated cohesion superior to that of calcium carbonate, and at best similar to that of aqueous coatings. Cohesion, porosity and thus absorption properties of compacted powders were affected by the powder preparation method, compaction process, and powder composition. Powders containing semicrystalline polymer turned out to be the most interesting for further testing.

The study is published in: Powder Technology, Volume 279, July 2015, Pages 127-133.

Powders with 100 parts (per weight) of CaCO<custom name="sub">3</custom> and 10 parts of polymer were studied. Source: Brenda Carson/Fotolia

Powders with 100 parts (per weight) of CaCO3 and 10 parts of polymer were studied. Source: Brenda Carson/Fotolia

top of page
Comments (0)
Add Comment

Post comment

You are not logged in

register