Done by scientists group at Al-Zubara secondary school. Under supervision from AL-Bairaq

1. Al-Bairaq
I am Discovering Materials
Polymers
Scientists
Altayeb Abdullah Ismail Alabadi
Jassim Aldous Ahmed Elsayes

2. Outline
• Introduction
• Activities
• Design product
• Self-healing electrical cable
• Acknowledgment

3. Introduction
• Polymers are giant chain molecules made of
small repeating units called monomers.

4. Activity (1,2)
Activity 1 : Changing
Polymer Pellets
Activity 2 : Hunting for
Polymer Products
Soil moist (polyacrylamide) is
a synthetic polymer when
placed in water can absorb
over 200 times of their
weight .
We used internet to search
about natural and synthetic
Polymers and their properties
also the meaning of the
recycling codes.

5. Activity (3,4)
Activity 3:
Comparing the
Viscosity of Liquids
In this activity we explore the
effect of polymer molecular
weight and concentration on the
viscosity of polymer solutions.
Activity 4 :
Testing the Strength of different
polymer films
In this activity we test and
compare the stretch ability and
tensile strength of polymer films
having different molecular
weights.

6. Design project
Design project: Designing a humidity sensor
In this activity we applied the knowledge gained about
polymers to design a humidity sensor made from a
polymer film, which change color according to the
humidity level.

7. Self-Healing electrical
cables

8. Introduction
• Electrical cables are used to connect two or more
devices, enabling the transfer of electrical signals
or power from one device to the other.
• Cables are used for a wide range of purposes, and
each must be tailored for that purpose.
• Cables are used extensively in electronic devices
for power and signal circuits.

9. Aim of the project
• Using self-healing polymer in manufacturing
of the electric cables to protect them from
being cut and damaged.
• By this we can decrease the electrical wastes
which are harmful for the environment.
• Also applying this idea will make these cables
more cost effective because it will last longer.

10. Hypothesis
•Using the self-healing polymer which is
composed of poly(urea-urethane) in the
coatings of electrical cables will help prolonging
the functional life span of these cables and also
reduce the electrical wastes.

11. Materials and method.
The self-healing polymer is synthesized in the
outer layer of the cable because it is the layer
that subjected to get damaged.

12. Results
•The self-healing polymer is very effective in
coating the electrical cables.
•It prevents the cutting of the wire and this
maintain the function of the cable for longer.
•It also protects against the leakage of electricity
through the uncovered wire.

13. Recommendations
• Further testing is needed to know the
durability of this product.
• This application could be extended for use in
different electrical equipments and
conductors.

14. Conclusions
Polymers have different properties and uses and
could be applied in our daily lives to help solve
many existing problems.

15. Acknowledgment
Many thanks to my school and AL-Bairaq team and Qatar
University for supporting us during our journey with a AL-Bairaq.
Also, I would like to thank the sponsors Ras Laffan Industrial City
Community outreach Program.