Characterizing Foam Hinged Lid Containers Utilizing Dynamic Mechanical Analysis (DMA)

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Dynamic Mechanical Analysis is a proven effective tool in characterizing open cell foams like polyurethanes, and closed cell polyolefin foams.

The foam hinged lid container market continues to grow as more people order takeout food. Products from various manufacturers appear and feel the same or equivalent, but the performance is noticed by customers and the end user. Traditional test methods, like differential scanning calorimetry (DSC) and fourier transform infrared spectroscopy (FTIR), and even gel permeation chromatography (GPC) show that the products are similar or equivalent. Mechanical testing by tensile and compression show equivalent performance at room temperature.

Many general plastic testing methods do not measure the affects from processing nor slight changes in morphology, polymer and foam cell structure. A more sensitive mechanical test is required. 

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