PKSC1020 EXAM 2 Batt Questions and Answers|Latest Update

PKSC1020 EXAM 2 Batt Questions and
Answers|Latest Update

PET Correct Answ_Used for beverage bottles, clear clamshells




PVDC Correct Answ_(Trade name: SARAN), used as barrier coating




Polymerization Correct Answ_O


OO

OOOOO

OOOOOOOO




Copolymerization Correct Answ_OOOOOOalternating




OOOOOOOOO random




OOOOOOOOOblock

, HDPE Correct Answ_Less branching, molecules can come in close contact.




LDPE Correct Answ_Low density; lots of branches, prevents close contact.




LLDPE Correct Answ_Linear low density; Lots of branches but they are short, allows some

contact.




Density Correct Answ_Amount of molecules that can pack in a given space (g/vol)




Yield Correct Answ_Amount of finished material (area) can be produced from raw material

(lbs)




Common Units Correct Answ_Square inches/lb.




Higher Correct Answ_Low density has a _______(higher/lower) yield.




Thermoset Correct Answ_When exposed to high temps, bonds are set and cannot be

unlocked.