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Seal strength evaluation of flexible plastic films by machine testing and human peeling

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Figure

FIG. 1―Heat seal equipment and tensile testing: heat sealing machine MTMS device, control unit (a) manual heating press (b) cooling press (c) and sample griping on universal testing machines (d)
FIG. 2―Sample size
FIG. 4 ―Peel force and elongation at break of machine and human classified by age groups for LDPE 70µm: peel force (a) and elongation at break (b) (Means not sharing a letter are significantly different (p<0.05))
FIG.  6―Peel force and elongation at break of machine and human classified by age groups for Nylon15/LLDPE 45µm: peel force (a) and elongation at break (b) (Means not sharing a letter are significantly different (p<0.05))
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