Al-Bairaq
I am discovering materials 9th cycle
Polymers
KNOWLEDGE
NASSER AL-HAJRI ALI AL-MARRI
TALAL AL-HAJRI RASHID AL-AT...
Outline
• Introduction
• Activity 1: Changing polymer pellets
• Activity 2: Hunting for polymer products
• Activity 3: Com...
Introduction
 Polymer:
 A long molecule made up from lots of small molecules called
monomers.
Changing Polymer Pellets
 Objective : Understand how Polymer pellets work.
 Procedure :
1) Prepare two samples 0.5 g of ...
Sample A Sample B
Before
adding
water
After
adding
10 ml
water
Adding
more 10
ml water
Before
adding
water
After
adding
10...
Conclusion:
By adding water to the polymer, it will
absorb the water and swell.
 By adding salt water to the polymer, it...
Hunting for polymer products
• Objective : Make a data table that contain :
1) Name of products made of polymers
2) Uses o...
polymer
Natural
 Wool
 leather
 silk
 cotton
Industrial
 Plastic
 Nylon
 Polyethylene
 polystyrene
Hunting for polymer products
Conclusion :
Polymers are every where around us.
Comparing the Viscosity
of Liquids
 Viscosity :a measure of the fluid resistance.
 Objective : to know the relationship ...
Comparing the Viscosity
of Liquids
 Conclusion:
the viscosity increased by
increasing the molecular weight of
the polymer.
Testing the strength of different
polymer films:
1-write
the
polymer
name
2- use
pipe to
take
polymer
solution
3- make
a l...
Testing the strength of different polymer
films:
Conclusion:
when the molecular weight increase
the strength of the polyme...
Design Project: Designing a humidity sensor
procedure:
1-mex 5 portions of poly(vinyl acetate) with 3 portions
of CoCl2 in...
Product Idea
Title: coating silicone with
polymethylmethacrylate
 Introduction :
 Solar (or photovoltaic) cells convert ...
To increase the efficiency of the solar cells.
we are living in a fast growing world, and
we are consuming the fossil fuel...
Aim of the work (objectives):
To obtain ahuge amount of clean
energy and make an electric power
station depends only at th...
coating silicone with
polymethylmethacrylate
Hypothesis:
 What happen to the silicon solar cells
if we coated it with
pol...
coating silicone with polymethylmethacrylate
Methods and Materials
polymethylmethacrylate.
Silicon solar cells.
coating silicone with polymethylmethacrylate
coating silicone with polymethylmethacrylate
Results:
 Solar cells are sources for clean energy.
 Using polymer with sol...
coating silicone with polymethylmethacrylate
Recommendations:
 We recommended to use a layer of the polymethy
To put it i...
Conclusions
(Overall)
 we are living in a fast growing world, and we are
consuming the fossil fuels so, by concentrating ...
Acknowledgment
Many thanks to my teachers, school and
AL-Bairaq team from Center for Advanced
Materials (CAM), Qatar Unive...
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Polymers , coating silicone with polymethylmethacrylate , IDM9

Done by Group : Knowledge School Name : Alshahaniya Independent Secondry School for Boys. Polymers Module : Through this module, students examine the different properties of the variety of polymers. Then they design and test a humidity sensor made of a polymer film. Finally, they are asked to design their own products. the product Idea is : Adding polymethylmethacrylate to silicon cells to increase its efficiency and to increase the amount of electricity produced.
Published on: Mar 4, 2016
Published in: Education      
Source: www.slideshare.net


Transcripts - Polymers , coating silicone with polymethylmethacrylate , IDM9

  • 1. Al-Bairaq I am discovering materials 9th cycle Polymers KNOWLEDGE NASSER AL-HAJRI ALI AL-MARRI TALAL AL-HAJRI RASHID AL-ATHBA
  • 2. Outline • Introduction • Activity 1: Changing polymer pellets • Activity 2: Hunting for polymer products • Activity 3: Comparing the viscosity of liquids • Activity 4: Testing the strength of different polymer films. • Design Project: Designing a humidity sensor Product Idea: coating silicone with polymethylmethacrylate
  • 3. Introduction  Polymer:  A long molecule made up from lots of small molecules called monomers.
  • 4. Changing Polymer Pellets  Objective : Understand how Polymer pellets work.  Procedure : 1) Prepare two samples 0.5 g of polymer pellets 2) Add 10 ml of water to each sample , then observe the results 3) Measure the mass to each sample 4) Add 10 ml of plain water to sample A , & 10 ml of saturated salt water to sample B , then observe the results 5) Filter leftover liquid to make samples easier to handle, by using paper towel , then measure the mass of samples
  • 5. Sample A Sample B Before adding water After adding 10 ml water Adding more 10 ml water Before adding water After adding 10 ml water Adding salt water 0.5 g 10 g 17 g 0.5 g 10 g 7 g Results:
  • 6. Conclusion: By adding water to the polymer, it will absorb the water and swell.  By adding salt water to the polymer, it will shrink and release water.
  • 7. Hunting for polymer products • Objective : Make a data table that contain : 1) Name of products made of polymers 2) Uses of products 3) Type of polymer ( natural / synthetic ) 4) Name of polymer 5) Physical properties of the polymer • Procedure : 1) List in data table the polymer products in the room , then describe its uses 2) Determine type of polymer ( natural / synthetic ) , then identify the polymers name 3) Describe the physical properties of the polymer 4) Compare the number of polymer products , then identify products as being made of polymers
  • 8. polymer Natural  Wool  leather  silk  cotton Industrial  Plastic  Nylon  Polyethylene  polystyrene
  • 9. Hunting for polymer products Conclusion : Polymers are every where around us.
  • 10. Comparing the Viscosity of Liquids  Viscosity :a measure of the fluid resistance.  Objective : to know the relationship between molecular weight and viscosity liquid Molecular weight glycerol 92 Ethylene glycol 62 methanol 32
  • 11. Comparing the Viscosity of Liquids  Conclusion: the viscosity increased by increasing the molecular weight of the polymer.
  • 12. Testing the strength of different polymer films: 1-write the polymer name 2- use pipe to take polymer solution 3- make a layer of the solution on the slide 4-use a blade to peel the films After 48 hours 5- measure the length of the film
  • 13. Testing the strength of different polymer films: Conclusion: when the molecular weight increase the strength of the polymer films will increase.  It’s stretch ability will decrease.
  • 14. Design Project: Designing a humidity sensor procedure: 1-mex 5 portions of poly(vinyl acetate) with 3 portions of CoCl2 indicator and 2 portions of butanone. 2-put the sensor in the front of the drayer. 3-put the sensor on the boiling water.  Conclusion: the color of the sensor change to blue in the dry weather, and turns to pink in the wet weather. thin polymer films rapidly absorb and release the water
  • 15. Product Idea Title: coating silicone with polymethylmethacrylate  Introduction :  Solar (or photovoltaic) cells convert the sun’s energy into electricity. satellites, they rely on the the photoelectric effect: the ability of matter to emit electrons when a light is shone on it.  Silicon is what is known as a semi-conductor.  Sunlight is composed of photons, which radiate from the sun. As these hit the silicon atoms of the solar cell, they transfer their energy to loose electrons.
  • 16. To increase the efficiency of the solar cells. we are living in a fast growing world, and we are consuming the fossil fuels so, we decide to concentrate in a clean resource for energy using sun light and photovoltaic cells. The scientist are working in it and developing it to increase the cells to it’s maximum power. We think if we increase the polymethyl films it will give us a good results
  • 17. Aim of the work (objectives): To obtain ahuge amount of clean energy and make an electric power station depends only at the sunlight to provide our country with it’s need from energy. Also to minimize the use of fossil fuels .
  • 18. coating silicone with polymethylmethacrylate Hypothesis:  What happen to the silicon solar cells if we coated it with polymethylmethacrylate.  Adding polymethyl to silicon cells will increase it’s efficiency and will increase the amount of electricity produced.
  • 19. coating silicone with polymethylmethacrylate Methods and Materials polymethylmethacrylate. Silicon solar cells.
  • 20. coating silicone with polymethylmethacrylate
  • 21. coating silicone with polymethylmethacrylate Results:  Solar cells are sources for clean energy.  Using polymer with solar cell increases the efficiency of the cells.
  • 22. coating silicone with polymethylmethacrylate Recommendations:  We recommended to use a layer of the polymethy To put it in the silicon cells to increase the photoelectric effects . We recommend to provide this type of polymer to make a clean power station energy.
  • 23. Conclusions (Overall)  we are living in a fast growing world, and we are consuming the fossil fuels so, by concentrating in the coated solar cells energy using sun light and photovoltaic cells it will increase the lightenergy Obtained from the sun.
  • 24. Acknowledgment Many thanks to my teachers, school and AL-Bairaq team from Center for Advanced Materials (CAM), Qatar University for supporting us during our journey with a AL- Bairaq. Also, I would like to thank the sponsors UNESCO, Qatar National Commission, Ras Gas, Maersk and Shell.