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Paint Project
5
Paint project
Created by: Soliana Tesfaye
Desire Marmolejo
Nikki Ortega
06. 06. 2017.
Goal of Experiment
1
Produce a paint formula that consisted of desirable properties that were under study on a small scale that can then be used on a larger scale and examine its cost efficiency
But first what is paint...
• Paint is a substance that is mainly composed of a binder, solvent, additivesand pigment which is used to give color and protect numerous surfaces
• Binder- substance that holds the pigments together
Did you know?
• Solvent- substance that facilitates the mixing of pigment into the binder
• Additives- ingredients added to paint that can alter its property
• Pigment- granular solids that gives the paint its distinct color
Paint Properties...
Type of paint?
General properties of paint:
-Smoothness, drying time, Consistency, adherence, Thickness
Properties of paint chosen for our project:
- Smoothness and color maintenance
Independent & Dependent variables
VAriables
• The independent variables that were in this paint formulation were thetype and amounts of solvent used as well as type of binder used
• Dependent variables were the smoothness and color
Why this formulation?
Why?
Assigned inorganic salts were Cobalt (II) Nitrate and Potassium carbonate which were combined with ethyl acetate to generate Cobalt carbonate and its distinct purple.
Co(NO3)2 (aq) + K2CO3 (aq) CoCO3 (s) +2KNO3
25ml-1M Co(NO3)2 + 3.4555g K2CO3 3.0 g CoCO3
Switched from soybean oil to Polyvinyl acetate as our binder to reach smoother paint that retained its color over time, also changed the amount and type of solvent.
2
TIMELINE
Paint Elaboration
MAjor Trends Observered were...
3
1. Soybean oil as a binder caused a low and runny consistency. After time it caused the paint to shift into a brown color.
2. Decrease of both the binder and solvent increased the possibility of more concentrated a smooth texture.
3. In the last to trials the solvent Ethyl Acetate allowed the paint to conserve it original color and improved the time of dryness.
CHart
Graph
conclusion
4
A more oily paint can not be well produced without Cobalt, the polyvinyl acetate with ethyl acetate gave a clean smooth finish, gaining a scale value of 5 ( 1 being the least smooth and 5 being smoothest)
The bonding ratio of the pigment to the binder and solvent in mixing our paint was much better
-How accurate were the results?
Much of our measurements and quantitative values were slightly tapered throughout the experiment when transferring from test tubes to the beakers before mixing in pigment to get the tested paint on the canvas
Possible errors throughout the experiment testing occurred during centrifuge separation
Results...
-Any Unphysical Results?
Some unphysical results we took notice of was how well the bonding between binders and solvents occurred in and the oxidation of the pigment
Cost analysis
The binder and solvent we predicted/tested, were some of the cheaper options of the ones provided in this project- the use of Ethyl Acetate with the Polyvinyl Acetate would come out to a range of less than $30 for liter of each to be mixed with Cobalt
What about the money?
Can There be a better formulation?
In our testing we found was the use of polyvinyl acetate and ethyl acetate produce a well made paint when working with cobalt and avoiding oil kept the pigmentation