​Why is TPU sheet molding difficult?

Why is TPU sheet molding difficult?

The difficulty of TPU sheet molding varies depending on the specific process, product requirements and material properties. Generally speaking, it is a medium-difficulty polymer material processing process. Its challenges are mainly reflected in the control of material properties, precise control of process parameters and stability of product quality. TPU melt has high elasticity and is prone to shrinkage and deformation due to stress release during cooling, especially for thin sheets (such as less than 0.1mm) or uneven thickness, it is more difficult to control flatness.