Science Polymer Project Journal Entry #3

screen-shot-2016-11-09-at-8-02-35-pmThe Gloop and Guar gum prototype was not the right prototype for us because it was too sticky and slimy, so if we put that on the door handle, the person’s hand would be stuck onto the polymer. The Guar Gum that we added did not have a big effect on the polymer, the polymer had clumps of Guar Gum in it after we added it, that would not work because we need the polymer to be comfortable when touching it.

 

The Stretch-tastic was too slimy so we added some cornstarch to it to make it thicker, it worked out really well, it was really comfortable to touch, it was malleable and it was not sticky. This would make the door handle cover really comfortable. The Stretch-tastic does not hold heat as well as the Gloop, but it still holds heat for a long time, this would make the door handle cover really warm so that people’s hands will not be cold in winter.

Another Prototype that we made was the Gloop and the Guar gum mixed together, we found out that it preserved heat longer than Gloop and stretch-tastic, but we did not use it because it was not malleable.

Science Polymer Project Journal #1

screen-shot-2016-11-15-at-7-14-40-pm-What is a synthetic material and what is a natural resource?

A synthetic material is basically a material that is man made, a natural resource is when a resource is created when there were no human workers involved in the process.

-What is a polymer?

A polymer is a chain of large molecules (also known as monomers) that is made up of the identical molecule that could bond together using chemical bonds.  A polymer is different from a monomer because a monomer is only one molecule. Examples of polymers are; anything plastic, proteins (such as hair, nails, tortoise shell), DNA, silly putty and rubber. A polymer usually have really high boiling and melting points.

 

-Describe at least two types of synthetic materials that are polymers and the natural resources that they come from.

1.Super glue, super glue is made up of natural resources such as ethyl cyanoacetate, formaldehyde, nitrogen, water (H2O)

2.Money, in Australia, Canada, Romania, Vietnam and New Zealand, their “paper money” is made up of a polymer called polypropylene.

-Describe how society uses these two synthetic materials.

1.Super glue, The society used Super glue to stick paper to paper together, or to other materials.

2.Money, The society used money to trade with other people for food, drinks, houses…etc.

-Show that you understand how natural resources go through chemical reactions to become synthetic materials.

natural resources were originally created by natural climate or weather, but to become a synthetic material, humans would take the material and add another substance, and the substance would act as a catalyst to help the natural resources turn into a synthetic resource.

Track and list your sources:

https://en.wikipedia.org/wiki/Polymer

http://chemistry.about.com/od/chemistryfaqs/f/examples-of-polymers.htm

https://en.wikipedia.org/wiki/Homogenization_(chemistry)

http://www.madehow.com/Volume-1/Super-Glue.html