1 what effect does a filler or reinforcement have on Tg 2 wh
1. what effect does a filler or reinforcement have on Tg?
2. what is the tensile strength of a test sample of PVC 1.25 cm wide and 0.32 cm thick, if it failed at 282 kg?
3. what is the meaning of anisotropy?
4. If a sample of polycarbonate measuring 5 cm elongates to 12 cm, what is the percentage of elongation?
5. what effect will decreasing the temperature and increasing time of testing have on the tensile strength values?
Solution
4. Sample polycarbonate measuring is 5cm
it elongates 5 cm to 12 cm.
Percentage of elongation = [ Final position - intial position ] / Final position
Final postion = 12 cm
Intital position = 5 cm
Percentage of elongation = [ 12 - 5 ] / 12
Percentage of elongation = 7 / 12
Percentage of elongation = 0.5833
Percentage of elongation = 58.34 %

