Fabric it is not an impermeable substrate because of fiber porosity. To study the solvent diffusion mechanism of coated fabric in the curing process, the drying model of PMMA/acetone coated glass fiber fabric was established. This drying model was verified by confocal Raman spectroscopy. Finally, the impact of fabric structure, thickness and porosity on the solvent diffusion process in coated fabrics was studied by the model. It was shown that the predicted solvent concentrations by the model were consistent with the experimental values. This model can be used to quantitatively calculate the solvent concentration at any position and at any time inside the coating film during the drying process. Moreover, it can also predict the curing time and residual solvent concentration of the coating fabric required to reach drying equilibrium. Compared with coated 3/1 twill, 5/3 satin and 2/1 twill, the solvent diffusion of coated plain fabric was faster during curing. Under the same environmental conditions, the thinner the fabric was and the greater the porosity was, the shorter the curing time was. The fitting equations for fabric thickness, fabric porosity and drying time were obtained, which can provide a theoretical guidance for the preparation, performance research and drying conditions optimization of PMMA coated textile materials.

由于纤维孔隙率，织物不是不可渗透的基材。为研究涂层织物在固化过程中的溶剂扩散机理，建立了PMMA/丙酮涂层玻璃纤维织物的干燥模型。通过共焦拉曼光谱验证了该干燥模型。最后，通过模型研究了织物结构、厚度和孔隙率对涂层织物中溶剂扩散过程的影响。结果表明，模型预测的溶剂浓度与实验值一致。该模型可用于定量计算干燥过程中涂膜内部任意位置、任意时间的溶剂浓度。此外，它还可以预测达到干燥平衡所需的涂层织物的固化时间和残留溶剂浓度。与涂层3/1斜纹布、5/3缎纹和2/1斜纹布相比，涂层平纹织物在固化过程中的溶剂扩散速度更快。在相同的环境条件下，织物越薄，孔隙率越大，固化时间越短。得到了织物厚度、织物孔隙率和干燥时间的拟合方程，可为PMMA涂层纺织材料的制备、性能研究和干燥条件优化提供理论指导。