We investigated the in-mold coating process that can not only offer a superior surface quality of molded parts but also reduce environmentally harmful chemical releases compared with conventional coating processes. Polycarbonate (PC) plates were first fabricated via injection molding and then a coating layer was generated on the top of the plate in the mold cavity. The in-mold coating process was simulated numerically. To look into the effect of the coating, we prepared three different samples including pure, bar-coated, and in-mold coated PCs and analyzed their physicochemical properties. It turned out the samples prepared using the in-mold coating process had enhanced surface properties such as surface modulus, hardness and pencil hardness.

我们调查了模内涂覆工艺，与传统的涂覆工艺相比，该工艺不仅可以提供模制零件的优异表面质量，还可以减少对环境有害的化学释放。首先通过注塑成型制造聚碳酸酯（PC）板，然后在模腔中在板的顶部生成涂层。数值模拟了模内涂覆过程。为了研究涂层的效果，我们准备了三个不同的样品，包括纯PC，棒涂PC和模内涂PC，并分析了它们的理化特性。事实证明，使用模内涂覆工艺制备的样品具有增强的表面性能，例如表面模量，硬度和铅笔硬度。