The document details testing of mechanical properties for polyamide 6.6 and lexan (a polycarbonate thermoplastic) through various tests including tensile, flexural, izod impact, double shear, and hardness tests. Results indicate that polyamide 6.6 possesses high strength and is commonly used in firearms and automotive sectors, while lexan is noted for its superior impact resistance and applications in bulletproof glass and automotive windshields. The study concludes that the mechanical properties of these materials were effectively analyzed and tested under standard conditions.

1. (An Autonomous Institute affiliated to Savitribai Phule Pune University)
Name Batch Roll no. PRN Mail ID
Atharva Pisal
L1-3
12011 22010199 atharva.22010199@viit.ac.in
Vardal Kalaskar 12012 22010215 vardal.22010215@viit.ac.in
Krushna Nemade 12013 22010231 krushna.22010231@viit.ac.in
Pravin Rajguru 12014 22010247 pravin.22010247@viit.ac.in
Ashok Pawar 12015 22010263 ashok.22010263@viit.ac.in

2. Sr. no. Sub-Topic Slides
1 Polyamide 6.6 01
2 Lexan 02
3 Testing mechanical properties of Lexan 03
4 Tensile Test 04
5 Flexural Test 05
6 Izod impact Test 06
7 Double Shear Test 07
8 Hardness Test 08
9 Conclusion 09
10 Reference 10

3. C12O2H20(NH)2
1. Polyamide 6.6 is one of the most popular engineering
thermoplastic and majorly used as a replacement to metal.
2. It has high strength and stiffness and good impact strength.
3. This polymer is mainly used in making of Firearms.
4. This polymer also plays a vital role in auto-motive and construction sector.

4. 1. Lexan is a polycarbonate resin thermoplastic.
2. It is notable for its superior impact resistance.
3. This polymer is used in making of Bullet Proof Glass.
4. It is used in the auto-motive's windshields, racecar window, VIP vehicle’s windows.
5. It is an amorphous engineering plastic with outstanding transparency.
C16O3H14

5. 1.Tensile Test
2.Flexural Test
3.Izod impact Test
4.Double Shear Test
5.Hardness Test

6. 1. The tensile test was carried out using the Universal
Test Machine (UTM) having capacity of 5 tons.
2. The test specimen is prepared according to ASTM standard
D638-08.
3. Formula used to calculate the tensile strength is 𝝈 =
𝑷
𝑨
4. For gradual loading, the gear rotation speed is 1.25,
1.5 and 2.5 mm/min.
5. Elongation is found to be 17.8% with ultimate stress of
0.062Gpa

7. 1. The flexural test is carried out in UTM of 5 tons
capacity.
2. The test specimen is prepared according to ASTM standard
D70.
3. Formula used to calculate the flexural strength is
𝟑𝑷𝑳
𝟐𝒃𝒉
4. The break load is 0.53kN and ultimate stress is
0.008Gpa.

8. 1. The Izod impact test is a standardized high strain rate
test.
2. The test determines the amount of energy absorbed by a
material during fracture.
3. The test specimen was prepared according to the ASTM
D256 standard.
4. The temperature ranging from -320°F to over 2000°F. Dead
weight in the oscillator is 80kg.
5. It has the high impact value of 9.6 joules.
(charpy key-hole notch test)

9. 1. The double shear test is carried out using UTM of 5 ton
capacity.
2. The test specimen was prepared according to the ASTM
2324 standard.
3. For gradual loading, the gear rotation speed is 1.25,
1.5 and 2.5 mm/min
4. The break load is 3.36kN and the ultimate stress is
0.064Gpa.

10. 1. The test was conducted using Wilson Rockwell L-scale,
which is especially for plastic material.
2. The indenter chosen is of steel ball of 1/4th diameter.
The amount of load 60kg was used for this test.
3. The test specimen was prepared according to ASTM D875
standard
4. It has good hardness value of 98HRL

11. 1. Polycarbonate was successfully fabricated by molding
process and testing of mechanical properties was held
successfully.
2. The result of the study is good in agreement with those
obtained mechanical properties using standard FIE
software.
3. The analysis of different testing and loading
arrangements leads to a better understanding of the
mechanical properties of poly-carbonate.
4. Experimental results shown indicates that the impact
testing gives better result than the chopped e-glass
fibre.

13. 1. Polycarbonate, Polycarbonate.city plastics retrieved 2013-12-
18,www.cityplastics.com.au/materials-polycarbonate
2. Fluorinated poly(meth)acrylate:synthesis and properties, Wenqiang
yao,youngicenli,xiooyu huang.
3. McIntyre, JE, Sythetic fibres: nylon, polyester, acrylic,
polyolefin. 2005: Taylor & Francis.
4. Seymour, RB and Kirshebaum, GS, High performance polymers, their
origin and development. 1986: Springer