利用微波技术对聚乙烯醇(PVA)/MgO-Al2O3水溶液进行干燥,在此基础上建立了涂层的水分扩散系数的一维数学模型.通过实验系统分析了PVA/MgO-Al2O3涂料的干燥特性,结果显示:随着微波输出功率和涂层厚度的变化,有效水分扩散值介于0.042 9×10-10～ 17.485 5×10-10 m2·s-1之间.最后,利用对数形式计算了干燥的活化能.水分扩散模型的建立为强化涂层干燥提供了理论基础.
参考文献
| [1] | 夏正斌,涂伟萍,杨卓如,陈焕钦.聚合物涂膜干燥研究进展[J].化工学报,2001(04):283-287. |
| [2] | 魏燕彦.水性紫外光固化聚氨酯丙烯酸酯的干燥与固化过程[J].高分子材料科学与工程,2008(03):71-74. |
| [3] | 蔡佳斌,施国萍,陈珀丽.微波干燥在聚氨酯水性木器涂料中的应用与研究[J].中国涂料,2008(07):69-72. |
| [4] | Vinjamur M.;Cairncross RA. .Non-Fickian nonisothermal model for drying of polymer coatings[J].AIChE Journal,2002(11):2444-2458. |
| [5] | P.Dufour;Y.Toure;D.Blanc;P.Laurent .On nonlinear distributed parameter model predictive control strategy:on-line calculation time reduction and application to an experimental drying process[J].Computers & Chemical Engineering: An International Journal of Computer Applications in Chemical Engineering,2003(11):1533-1542. |
| [6] | N. Allanic;P. Salagnac;P. Glouannec .Estimation of an Effective Water Diffusion Coefficient During Infrared-Convective Drying of a Polymer Solution[J].AIChE Journal,2009(9):2345-2355. |
| [7] | VASILAKOS N P;MAGALHAES F .Microwave dying of polymers[J].Journal of Microwave Power,1984,19(02):135-144. |
| [8] | (O)ZBEK B;DADALI G .Thin-layer drying characteristics and modeling of mint leaves undergoing microwave treatment[J].Journal of Food Engineering,2007,83(04):541-549. |
| [9] | Doymaz, I .Thin-layer drying characteristics of sweet potato slices and mathematical modelling[J].Heat and mass transfer,2011(3):277-285. |
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