1. WELCOME CO THE PRESENTATION ON
STUDIES ON THE SOLE BONDING SYSTEM OF
POLYURETHANE (PU) SOLING MATERIALS WITH DIFFERENT
TYPES OF UPPER MATERIALS
Presented by
SHAIKH MAHABUB-UL ISLAM
Exm Roll: 51
Reg No: 2683
Session

2. CONTENTS AIM OF THE PROJECT 3 1 ABOUT PU & PU SOLINGS 2 ADHESION 3
LAB WORK & RESULT 4
CONCLUSION 3 5

3. 1. AIM OF THE PROJECT
To analyze the PU sole bonding with different uppers.
To find the faults & remedy for better bonding.
To find the strength and weakness of PU solings.

4. 2. ABOUT PU & PU SOLINGS
PU was first invented in the late 1930 in Germany.
Formation of PU
Raw materials
>> Diols >> Diisocyanate >> Cross Linker
>> Catalyst >>Blowing agents.

5. 2.1.CHARACTERISTICS OF PU MATERIALS
Source:

6. Excellent flexibility. Excellent slip resistance.
2.2 PROPERTY OF PU Sole
Light weight.
Excellent flexibility.
Excellent slip resistance.
Oil resistant, safe & durable.
Sole weight versus performance
Source:

7. 3.0 ADHESION
THE ADVESIVE
BOND
MECHANICAL
ADHESION
SPECIFIC ADHESION

8. 4.0 LAB WORK & RESULT Test Method :: SATRA Test Method AM2
Fig: Tensile tester (STD 172)
Fig: Sole for test
Fig: Shoe upper material
Fig: Test specimen

9. 4.1. Result Standard Guidelines For Bond Strength Test Result
SI No
Property/ Test Method
Standard
Unit
Test Value 1.
Polyurethane
DIN BS 513 1:1, 1.2
N/cm kg/cm/min
50 4.0
Test Result
Sample of Buffalo L/R gives 3.84 kg/cm/min with Neopren.
4.0 Kg/cm/min with PU
Sample of PVC coated Fabric
gives 0.2 kg/cm/min with Neopren.
0.2 Kg/cm/min with PU

10. 5.0 CONCLUSION According to the test: Recommendation
Buffalo L/R gives better bonding with PU Sole and PU adhesive
PVC coated fabric do not perform well.
Recommendation
>> Scouring >>Primer using >> Correct adhesive selection >>proper drying >>Reactivation temp. & time >> attaching pressure.
These will help for better bonding.

11. THANKS YOU ALL