What Determines the Density of Molded Pulp Products — and How to Make Them Stiffer and Denser
Molded pulp — the material behind egg cartons, electronics inserts, and industrial cushioning trays — has to strike a careful balance. Too soft and it collapses under load; too hard and it may turn brittle or waste material. Two properties sit at the center of that balance: density (how tightly the fiber is packed) and stiffness/rigidity (how well the […]
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