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UNILATE > Annealing Top Page
[UNITIKA UNILATE]

Annealing

Objective : To prevent dimensional shrinkage of finished goods
Recommended : Any application where high dimensional stability is required at temperature over 80°C

*Anneal : Heat processing to defuse residual stress in plastic materials

Standard annealing conditions: Process:
(1) Increase temperature to 180°C from room temperature over 2 hours
(2) Keep 180°C for 1 hour
(3) Gradually reduce temperature to room temperature over 8 hours

[Difference of dimension between Annealed and Non annealed after processing at 160°C×30min]

  Anneal

Non anneal

MD 0.01% -0.08%
TD 0.01% -0.83%

* To prevent heat aging, SC ,NC ,CV grade and white products are up to under 160°C.


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