Add couple drops of food coloring if desired.Ĥ) As soon as the polymer starts to stiffen, take it out and knead it until it's nice and firm. In a seperate bowl, mix together 1/2 cup of water to 1 1/2 teaspoons of borax stir well until all borax is dissolved.ģ) Slowly pour the bowl with glue and water to the borax and water mixture while stirring. H ypothesis: I think adding more borax into the polymer, it will reduce its stretchiness because the boron and boric acid in borax will stiffen the polymer because boron crystals in boron will change the reaction of the polymer.Ģ) In a bowl, mix together: 1/4 cup of Elmer's glue and 1/4 cup of water stir well. The matrix between the bond is not very strong- meaning the polymer is stretchable and bendable.
Adding borax and borate ion to the glue mixture, the water molecules that go through the polymer chain, these long chains of polymers (glue) links together, forming a goopy slime. When liquid borax or glue flows through a polymer chain, it causes the polymer to change reactions.
In my experiment I will be using borax and Elmer's glue to form a long chain polymer. Borax contains: Boron, sodium borate, and the salt of boric acid. Polymers are Amorphous solids- meaning they have no definite shape and they can from into different shapesand not take place of a shape.īorax is another ingredient to make a polymer. Borax is a product that help get stains out, borax is in cosmetics, it helps wash diapers, borax also helps cleans around the house, and glass industries, such as fiberglass use borax. Polymers are found in plastics, fiberglass, and many more product manufacteurs. Monomers occur in molecular units or patterns that look like beads on a string. Polymers are chemically formed by 100 to 10,000 small molecules called "monomers". In this experiment I will be testing what would happen to the polymer when I add more borax to it. A polymer is a compound made up of large molecules often in a solid state. The key words are: polymer, borax, and sodium borate. Testable Question: How does the amount of borax affect the stretchiness of polymers?īackground Research: For my science fair project, I am answering and testing the question: how does the amount of borax affect the stretchiness of polymers? I researched my main/key words for the project. Does the polymer with the most borax not stretch as much? Or does the polymer with less borax stretch more? Purpose : To figure out what happens to a polymer when more borax is added to it. Topic: In this experiment I will be testing how the amount of borax affects the stretchiness of a polymer.
0 kommentar(er)
