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Flexibility of plastic packaging films increases with increasing density.

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in Food Packaging Technology by (63.0k points)
Flexibility of plastic packaging films increases with increasing density.

(a) True

(b) False

I got this question during an interview.

I'd like to ask this question from Extrusion and Calendering in Thermoplastics in portion Thermoplastic Polymers Properties & Processing of Food Packaging Technology

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Right choice is (b) False

Explanation: The statement is false. Flexibility of packaging films increases with decreasing density. As the density increases, the forces amongst the monomers increases and the rigidity increases. Hence, flexibility decreases.

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