Presentation on theme: "The Beauty of Polymer Clay Meriliis Kuuslap (form 10) Margred Kõima (form 10) Indrek Virro (form 11) Tartu Karlova Gymnasium Estonia 2009 Xperimania II."— Presentation transcript:
The Beauty of Polymer Clay Meriliis Kuuslap (form 10) Margred Kõima (form 10) Indrek Virro (form 11) Tartu Karlova Gymnasium Estonia 2009 Xperimania II
The Idea of the Project The idea was formed after we had made some ornaments, having used polymer clay ( Fimo ). What do we know about the properties and composition of Fimo ? How is it possible to apply that material? These were the respective questions.
What is Fimo? Fimo is a name for a brand of polymer clay made by Eberhard Faber. According to information by Eberhard Faber, Fimo contains polyvinyl chloride ( PVC ), which is a widely used thermoplastic polymer. It can be made softer and more flexible by the addition of plasticizers, the most widely-used phthalates.
Testing Polymer Clays Properties I Demo-experiment: pyrolysis of PVC- based polymer clay (Fimo) To see what happens when Fimo is overheated, it is necessary to do an experiment. When pyrolysing polymer clay Fimo, among the products might be unsaturated hydrocarbons and hydrochloric acid.
Materials Sodium carbonate ( Na 2 CO 3 ) Potassium permanganate ( KMnO 4 ) Universalindicator Polymer clay Fimo
Laboratory Equipment Burner Pipette Stand Test tubes Corks Rubber hose
Testing unsaturated hydrocarbons On the left photo pink KMnO 4 solution. On the right photo decoloured KMnO 4 solution. KMnO 4 oxidizes alkenes, the reaction decolourises the solution.
Solid Products of Pyrolysis Char
Testing hydrochloric acid Universal indicator has changed its colour The product is very acidic: pH 1,0
The Conclusion By pyrolysing polymer clay we identified the products: unsaturated hydrocarbons, char and hydrochloric acid. If Fimo is overheated there may appear irritating or toxic products
Testing Polymer Clays Properties II: Hands-on Acitvity When we were making the ornaments we acknowledged several properties of Fimo We chose cornflower for Xperimania experiment because it is the national flower of Estonia
In the warmth of human hand, the polymer clay changes into soft and plastic material. Polymer Clay Cornflower
Fimo is Easily-modelled
Fimo is absolutely cuttable.
Baking in an oven, at 110° C for ~20 min., Fimo hardens. Baking
So the ornaments with cornflower were formed
The Beauty of Polymer Clay
Interaction of polymer clay with different surfaces Timber CeramicGlass Metal
In the course of the project Fimo obtained a new meaning for us: F – find & I - investigate M - materials O - originality