HONEYCOMB SANDWICH PANEL AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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Jul 25, 2013
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Jan 27, 2011
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Abstract
A honeycomb sandwich panel of synthetic paper. The synthetic paper includes: between 20 and 75 wt. % of structural fibers and between 25 and 80 wt. % of bonding fibers. The structural fibers are poly(p-phenylene telephthalamide) (PPTA) fibers. The bonding fibers are fibrids of the PPTA. The structural fibers and the bonding fibers are shaped by a wet-forming papermaking method by a paper machine to yield the synthetic paper. The synthetic paper is coated, stacked, pressed, stretched, shaped, impregnated, cured, and sliced to form the honeycomb sandwich panel.
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