TPU pellets typically require thorough drying prior to processing, as the material is prone to absorbing atmospheric moisture. Excessive moisture content can lead to quality issues-such as bubbles, silver streaks, and surface roughness-during injection molding or extrusion; therefore, drying should be carried out in accordance with the material specifications.
During processing, parameters such as barrel temperature, mold temperature, and injection pressure must be carefully controlled. Since processing parameters vary slightly depending on the TPU brand and grade, adjustments should be made based on specific conditions. Additionally, prolonged exposure to high temperatures should be avoided to prevent material degradation, which could compromise performance. Equipment should be cleaned promptly after processing to prevent residual material from carbonizing and affecting the quality of subsequent batches. Standardized processing procedures effectively enhance both the product's appearance and performance stability.
