I am discovering materials
8th cycle ( AL-Bairaq (
polymers
Group : Al-AMAL
1- Mneera Nasser
2- Noura Rashed
3- Noor...
Outline :
• Introduction
• Activity 1 : changing polymer pellets .
• Activity 2 : hunting polymer .
• Activity 3 : com...
•Introduction
What’s the polymer ?
A polymer is a large molecule, or
macromolecule, composed of many repeated
subunits...
Activity 1: Changing polymer pellets .
1- Add two 0.5 g of the polymer, in a plain water.
After 10 min
2- Measure each ...
Activity 1: Changing polymer pellets .
Samples weights table
Sample A :
Sample B :
Increase 10 ml of
water
After add...
Activity 2: Hunting polymer .
Polymer consists of two parts :
natural polymer Synthetic polymer
wool silk Cotton
Arabi...
Activity 3: comparing the Viscosity of liquids
.
Viscosity
Viscosity : is the resistance of a
liquid to flow .
Activity 3: comparing the Viscosity of liquids
.
We made an experience with three
different liquids molecular weight : ...
Activity 4: Testing the strength of different .
polymer films
Part
1
1- Write the table .
2- Use pipettes to take pol...
Part
2
1- Use a razor blade to peel off films
After 48 hour
2- Initial lenght of the film .
4- Measure and record
th...
Activity 4: Testing the strength of different .
polymer films
changing length every 1 min
PVAC 100 : PVAC 170 :
Time (...
Activity 4: Testing the strength of different .
polymer films
* Whenever the solution
concentration less, spilled
more...
Design Project (humidity sensor) .
Project Title :
( Non adhesion with Epoxy ) .
• Product Idea ( Non adhesion with Epoxy ) .
The concrete material stuck in the pot .
So we looked for a polymer prevent...
• Product Idea ( Non adhesion with Epoxy ) .
The idea of the project is
based on the use of epoxy
polymer that prevents...
• Product Idea ( Non adhesion with Epoxy ) .
Characteristics of epoxy :
1- Susceptibility high adhesion .
2- Lack of co...
Product Idea : ( Non adhesion with Epoxy ) .
The First day :
1- used sand, cement and epoxy polymer
.
2- Anoints the m...
• Product Idea ( Non adhesion with Epoxy ) .
• Product Idea ( Non adhesion with Epoxy ) .
Recommendations :
1- We recommend anointing the mold
which the concrete ma...
Thank you for your kind
attention .
and we want to thank
of 21

Polymers,Al-Amal Group , Non adhesion with Epoxy ,IDM8

Done By :Al-Amal Group School Name :Al-Shamal Independent Secondary school for Girls Module Polymers: 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. Non adhesion with Epoxy : The concrete material stuck in the pot ,So we found a polymer prevents the adhesion of concrete in the pot
Published on: Mar 4, 2016
Published in: Education      
Source: www.slideshare.net


Transcripts - Polymers,Al-Amal Group , Non adhesion with Epoxy ,IDM8

  • 1. I am discovering materials 8th cycle ( AL-Bairaq ( polymers Group : Al-AMAL 1- Mneera Nasser 2- Noura Rashed 3- Noor Saib 4- Latifa Ali 5- Lulwaa Eisa
  • 2. Outline : • Introduction • Activity 1 : changing polymer pellets . • Activity 2 : hunting polymer . • Activity 3 : comparing the Viscosity of liquids . • Activity 4 : Testing the strength of different polymer films . • Design Project (humidity sensor) . • Product Idea ( Non adhesion with Epoxy ) .
  • 3. •Introduction What’s the polymer ? A polymer is a large molecule, or macromolecule, composed of many repeated subunits.
  • 4. Activity 1: Changing polymer pellets . 1- Add two 0.5 g of the polymer, in a plain water. After 10 min 2- Measure each sample . 3- Back simple in the beakers . When adding water• 4- Change in their weight After 10 min When adding salt water• A B
  • 5. Activity 1: Changing polymer pellets . Samples weights table Sample A : Sample B : Increase 10 ml of water After addition the water Before the experiment 0.5 g 10 g 19 g Increase 10 ml of salt water After addition the water Before the experiment 0 .5g 10 g 9 g
  • 6. Activity 2: Hunting polymer . Polymer consists of two parts : natural polymer Synthetic polymer wool silk Cotton Arabic gum Hair Nylon Rubber Plastic Leather dyes Industrial
  • 7. Activity 3: comparing the Viscosity of liquids . Viscosity Viscosity : is the resistance of a liquid to flow .
  • 8. Activity 3: comparing the Viscosity of liquids . We made an experience with three different liquids molecular weight : Name of Liquid : MolecularWeight (amu) Methanol 32 Ethylene glycol 62 Glycerol 92 Result : More Viscosity Less viscosity 92 62 * There is a direct correlation between 32 molecular weight and viscosity .
  • 9. Activity 4: Testing the strength of different . polymer films Part 1 1- Write the table . 2- Use pipettes to take polymer solution . 3- Make a layer of the solution on the slide . Keep it for 48 hour .
  • 10. Part 2 1- Use a razor blade to peel off films After 48 hour 2- Initial lenght of the film . 4- Measure and record the length every 1 min. To test the stretching of three polymer films . 3- Put the film between the binder clip .
  • 11. Activity 4: Testing the strength of different . polymer films changing length every 1 min PVAC 100 : PVAC 170 : Time (sec) Length (cm) 0 0 30 1 60 2 90 3 120 4 150 5 180 6 210 7 Time (sec) Length (cm) 0 0 30 2 60 2.5 90 3 120 4 150 4.3 180 4.5 210 5
  • 12. Activity 4: Testing the strength of different . polymer films * Whenever the solution concentration less, spilled more . 10 9 8 7 6 5 4 3 2 1 0 30 60 90 120 150 180 210 PVAC 1g/40ml PVAC 10g/40ml
  • 13. Design Project (humidity sensor) .
  • 14. Project Title : ( Non adhesion with Epoxy ) .
  • 15. • Product Idea ( Non adhesion with Epoxy ) . The concrete material stuck in the pot . So we looked for a polymer prevents the adhesion of concrete in the pot
  • 16. • Product Idea ( Non adhesion with Epoxy ) . The idea of the project is based on the use of epoxy polymer that prevents the adhesion of concrete materials.
  • 17. • Product Idea ( Non adhesion with Epoxy ) . Characteristics of epoxy : 1- Susceptibility high adhesion . 2- Lack of contraction when drying . 3- Resides in the liquid state .
  • 18. Product Idea : ( Non adhesion with Epoxy ) . The First day : 1- used sand, cement and epoxy polymer . 2- Anoints the mold with epoxy 3- mixed cement with sand and some water . After drying 4- Put the mixture in the mold which anointed by epoxy After 24 h
  • 19. • Product Idea ( Non adhesion with Epoxy ) .
  • 20. • Product Idea ( Non adhesion with Epoxy ) . Recommendations : 1- We recommend anointing the mold which the concrete materials kneaded on it , to prevent adhesion . 2- Project should be wider applied and use special ovens for drying polymer quickly after anointing .
  • 21. Thank you for your kind attention . and we want to thank