Look over a creep compliance problem I did involving time temp superposition
I have attached my solution to a creep compliance problem. I need someone to go over it and point out any mistakes I made. Thanks! The problem involves a creep compliance function of a polymer at 35 C: D(t) = 2 - e ^ (-t/1000) GPa ^ -1 where t is in hours. The polymer is made into a tensil specimen and heated to 70 C for 48 hrs. Determine the strain in the specimen at 200 hours after being subjected to 20 MPa at 70 C. Assume that the time temp shift factor aT is 7.3. Compare the result to the same load history at 35 C.
Subject:
Chemistry
Topic:
Polymer Chemistry
Posting ID:
36909
OTA ID:
103139
given Kc and moles of produced in reaction calculate concentration at equilibrium
The equilibrium constant Kc for the reaction is 54.3 at 430 deg C H2(g)+I2(g) f/r 2HI(g) At the start of the reaction there are 0.714 mole of H2, 0.984 mole of I2, and 0.886 mole of HI in a 1.90 L reaction chamber. Calc. concentrations of the gases at equilibrium [H2]= [I2]= [HI]=
Subject:
Chemistry
Topic:
Polymer Chemistry
Posting ID:
38676
OTA ID:
104819
Discuss second order non-linear optical (NLO) behaviour in polymers?
Subject:
Chemistry
Topic:
Polymer Chemistry
Posting ID:
120172
OTA ID:
105281
Polymer PE by free radical polymerization: Why not a high-performance material
Explain using chemical structures why polyethylene synthesized by free radical polymerization is not a high-performance material (e.g. mostly used for supermarket bags and similar cheap commodities ).
Subject:
Chemistry
Topic:
Polymer Chemistry
Posting ID:
120272
OTA ID:
105514
Notes on synthesis on dendritic macromolecules (dendrimers)?
Subject:
Chemistry
Topic:
Polymer Chemistry
Posting ID:
122890
OTA ID:
104103
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