1. AL-Bairaq
I Am Discovering Materials
8th cycle
Sweat Absorbent Socks
(Polymer)
Bayan_Platinum8
Aisha AlDarwish Fatma AlMuhanadi
Fatma AlNaama Fajer AlMarzooqi

2. Outline
Contents:
• Introduction
• Activity 1: Changing Polymer Pellets
• Activity 2: Hunting For Polymer Products
• Activity 3: Comparing Viscosity Of Liquids
• Activity 4: Testing The Strength Of Different
Polymer Films
• Design Project: Designing a Humidity Sensor
• Product : Sweat Absorbent Socks

3. Introduction:
• A polymer is a long chain molecule consisting
of repeating units called monomers.

4. Activity 1: : Changing Polymer Pellets
Purpose:
In this activity we will test the diffusion and
polarization of polycrylamide polymer .

5. Activity 1: : Changing polymer pellets
• Procedure:
 Label 2 beakers (A,B)
 Put 0.5mg of polycrylamide
polymer and 10ml of water in 2 beakers.
Wait 10 minutes, then get the
mass of the polymer.

6. Activity 1: : Changing polymer pellets
Add 10ml of pure water in only one of the beakers(A),
add salty water to the other beaker(B) at the same time.
Wait 10 mins. then get the mass
of the polymer again

7. Activity 1: : Changing polymer pellets
• Activity results:
 The polymer swelled when we poured the water over it in
several minutes.
Beaker A Beaker B
Mass of the polymer after 9.6 g 9.68g
adding pure water
Mass of polymer after 19.26g 8.35g
adding pure(A)/salty(B) water
Swelled due to Polarization. Shrinked due to diffusion

8. Activity 1: : Changing polymer pellets
• Activity conclusion:
 After doing this activity, we noticed that
polymers can expanded up to 200 times when it
stays in water. (Polarization)
 Polymers shrink when it stays in salty water.
(Diffusion)

9. Activity 2: Hunting for polymer products
• There are 2 types of polymers:
Natural polymers Synthetic polymers
Rubber Wool Wood
Silk Paper
Polystyrene
Polypropylene
Polyethylene
Silicone
Nylon

10. Activity 3: Comparing viscosity of liquids
• Viscosity is the resistance of liquid to flow.
• The more viscous a liquid is, the longer it takes
to flow

11. Activity 3: Comparing viscosity of liquids
• Procedure:
 Take 3 bottles of 3 different types of polymers
with a different molecular weight each.
 Then move each bottle and turn it over and
analyze how fast each one of them flows. Then
order them according to that.

12. Activity 3: Comparing viscosity of liquids
• Activity conclusion:
 The bubble in first bottle scored the lowest time,
the last bottle scores the highest time.
 The relationship between the molecular weight and
the viscosity is a positive relationship (When the
molecular weight increases, the viscosity also
increases).

13. Activity 3: Comparing viscosity of liquids
• Daily applications of viscosity:
Ketchup and shampoo.,…
*We can increase the viscosity of liquids by adding
polymers like starch.

14. Activity 4: Testing the strength of different polymer
film
This activity consists of 2 parts:
• Film casting
• Testing the film strength

15. Activity 4: Testing the strength of different
polymer films
Activity procedure: (part 1)
• Label the micro slides with 3 different molecular weights
and make a mark on 3 pipettes on 7 cm from it's tip.
• Dispense the solution from the pipette as evenly as
possible onto the unlabeled side of the slide.
• Leave the slides for 48hrs to dry

16. Activity 4: Testing the strength of different
polymer films
Activity procedure: (part 2)
 Peel the films and attach them to two
paper clips to a weight on the stand.
 Fold the film lengthwise and attach it to the binder
clip with the weight on the stand. As shown below:

17. Activity 4: Testing the strength of
different polymer films
Procedure:
 Measure and record the length of the film each 30
sec.
 Test the strength of 2 other films of different
molecular weight

18. 25
20
15
10
5
0
Activity 4: Testing the strength of
time(…
0
30
60
different polymer films
90
120
150
180
210
240
270
300
330
360
390
420
450
480
510
540
570
600
630
length
film strength
Result:
PVAC 10g/40ml PVAC 5g/40ml

19. Design Project: Designing a humidity
sensor
Procedure:
• Mark 3 pipettes on 4.5cm.
• Put 4 portions of polyvinyl alcohol 2000 in a
beaker.
• Pour 1 portion of CoCl2 and 5 portions of water

20. Design Project: Designing a humidity
sensor
Result:
• The blue indicator changed directly to pink
when added in the beaker.
• The indicator didn’t change into blue
again when we put it near the dryer

21. Design Project: Designing a humidity
sensor
Conclusion:
• We conclude CoCl2 as a high sensitive
sensor to humidity.
• CoCl2 is not sensitive to drought.

22. Product idea:
Sweat Absorbent Socks
Water absorbent polymer
(Sodium Polyacrylate)

23. Product idea: Sweat Absorbent Socks
Our Idea is mainly about adding an absorbent polymer in socks to
absorb the sweat produced from the body to limit the diseases
caused by it. We chose the polymer Sodium polyacrylate which is
used in disposable diapers because they are both inexpensive or
low-priced and water absorbent. In fact, It has the ability to absorb
as much as 200 to 300 times its mass in water

24. Product idea: Sweat Absorbent Socks

25. Product idea: Sweat Absorbent Socks
• Importance of the product to our community:
With the rise of the sports field in Qatar; starting with
winning the gulf cup 22 to hosting Fifa world cup 2022, we
decided to improve our sports’ equipments. So we thought
we would create something that will help athlete’s. So we
came up with the idea of using an absorbent polymer in
socks.

26. Product idea: Sweat Absorbent Socks
Importance of the product to individuals:
Athlete’s foot is one of the common fungal infections
of the skin on the feet. Fungal germs (Fungi) often
occur in small numbers on human skin where they
usually do not harm. However, if the conditions are
right, they can invade the skin, multiply, and cause
infection. The conditions that fungi likes the best are
warm, moist, and airless areas of skin,
such as between the toes.

27. Product idea: Sweat Absorbent Socks
• Recommendations:
• This idea has only investigated the viability of the
product; it has not been made in companies or markets.
• It is recommended that companies responsible for
producing socks do further researches and trials to
establish the validity of this product to decrease the
chance of getting those certain diseases and the
sufferance of them.

28. Acknowledgements
Finally, we would like to thank our school, our principal
and our chemistry teachers. A special thanks goes to Qatar
University for giving us this great opportunity and
experience. We would also like to thank UNESCO as a
partner , RASGAS as a platinum sponsor, MAERSK OIL
as gold sponsor and last but not least SHELL as silver
sponsor.