2024-11-06
It depends on the individual purpose. First, assess the state in which it precipitates—under double 85 conditions or during injection molding? Based on the customer's focus, do they care about precipitation and corrosion during the injection process in the mold, or during use and application? The evaluation methods differ depending on the focus.
For double 85 or post-baking and boiling precipitation evaluations, our technology is quite mature, and these can be demonstrated through visual inspection.
However, evaluating precipitation in injection molds is more challenging. Currently, there isn't an effective method. Some people are working on standard molds, continuously injecting for 20 hours to simulate the injection process and observe surface precipitation. This is the most realistic simulation but also the most expensive one. Accelerated precipitation simulations differ from actual injection molding precipitation. High-temperature precipitation differs from double 85 precipitation. High-temperature precipitation mainly concerns stability under high temperatures, while compatibility between resin and additives during high-temperature cooling differs from low-temperature precipitation. Currently, accurately simulating this situation is quite difficult.