A. A tensile modulus of number of plastic is ABS 2.5 GPa, PVC 3.1GPa. Which of the plastics is the stiffest?
B. Define the following terms:
i. Metals ii. Polymeys iii. Composits Ceromics
v. Themomoplastic vi. Thermosetting plastic
c. List FOUR 4 additives that goes into polymers to improve its property.
D. List SIX (6) common characteristics of polymers:
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