👉 Fluid, a synthetic polymer, undergoes significant changes when exposed to various conditions. When heated, it transitions from a solid to a liquid state due to the weakening of intermolecular forces, allowing its molecules to move more freely and occupy a larger volume. Conversely, when cooled, fluid solidifies as the intermolecular attractions become dominant, causing its molecules to arrange into a more ordered structure. Additionally, fluid's viscosity can change with temperature and shear rate; it becomes less viscous when heated (thinning) and more viscous when cooled (thickening). These transformations are crucial in applications like 3D printing, where precise control over fluid behavior is essential for creating complex shapes.
