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Author Question: Describe why fillers and other additives may increase or, in some cases, decrease rotomolded part ... (Read 115 times)

hubes95

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on: Aug 19, 2018
Describe why fillers and other additives may increase or, in some cases, decrease rotomolded part mechanical properties.
 
  What will be an ideal response?

Question 2

Why is there a limit on the thickness of parts that can be reasonably made by rotomolding?
 
  What will be an ideal response?


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Juro

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Reply #1 on: Aug 19, 2018
Answer to Question 1

Fillers can increase mechanical properties by reducing the degradation that occurs during some heating cycles. Fillers can decrease mechanical properties by decreasing the flowability of the resin and therefore preventing the resin from moving uniformly throughout the mold. Decreased mechanical properties would also occur if the filler interferes with the fusion of the plastic particles.

Answer to Question 2

The thickness of the material determines, to some extent, the length of the heating cycle. If too much time is required to properly heat and fuse all of the material, some resin may begin to degrade. Hence, the limit on thickness is imposed by the maximum length of time before degradation occurs.


hubes95

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Reply #2 on: Aug 19, 2018
TY


Juro

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Reply #3 on: Aug 19, 2018
You're welcome


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