Polymer processing method can be used to change the microstructure of polymer chains.

Polymer Processing I

Quiz
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Other
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University
•
Hard
Yamuna Munusamy
Used 12+ times
FREE Resource
11 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
True
False
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the followings are the criteria for Newtonian Fluid?
Viscosity is constant at all shear rate
Macromolecules
Does not have any interaction between between the molecules
Does not have entanglement
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which of the followings are TRUE statement about entanglement?
Entanglement is cause by cross linking
Entanglement is cause by physical hook
Net changes in entanglement upon application of shear will result in changes in viscosity
Entanglement is caused by Van der Waal forces
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In shear thickening solutions, the shear thickening behavior is influenced by the followings EXCEPT
Interparticle forces stability
Shear value
Entanglement
Concentration of suspended particles
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
In Bingham plastic the flow could only observed when the shear stress applied exceed ----------------------
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The following regions could be observed for polymer melts subjected to a range of shear.
Low shear regions
Constant shear region
High shear region
Shear thinning regions
7.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Select the correct answers.
The viscosity vs shear rate graph was plotted for LDPE and HDPE. Which of the followings are true.
At low shear region, LDPE shows higher viscosity compared to HDPE
At shear thinning region, drop of viscosity is more for HDPE
At high shear region both HDPE and LDPE behaves as Newtonian fluid.
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