Abstract:

In this paper, an innovative method to study the structure of the porous superabsorbent polymers was studiedBy using the Image J image processing software, the SEM pictures of the polymers were transformed into a binary sketch imageThe structure parameters of the pores could also be calculated with the aid of the softwareAccording to the principle of differential box counting, combined with the MATLAB programming, the fractal dimension of the porous superabsorbent polymers could be obtained through the binary sketch imageThe calculated fractal dimension could be used to express the regularity of the complicated structure of the porous superabsorbent polymersVia the above process, the influence of the preswelling time for the porous superabsorbent polymers, prepared through the cryogenic induced phase separation method, on the structure of the modified polymer was discussed.

Key words:

多孔高吸水性树脂, 图像分析, 分形

摘要： 本文探索了一种对多孔高吸水性树脂的孔结构进行定量表征的研究方法。采用Image J图象处理软件，将多孔高吸水性树脂的SEM照片转换为二值图后，利用软件的图形处理与计算功能，结合体视学的原理，得到多孔高吸水性树脂的孔结构参数。根据差分盒维数的思想，结合MATLAB编程计算，对二值图处理后得到图象的分形维数，用以表征结构复杂的多孔高吸水性树脂孔结构的规整性。通过所建立的表征方法，对不同预溶胀时间下通过冷冻诱导相分离法制备的多孔高吸水性树脂的结构的变化规律进行了讨论。

关键词:

多孔高吸水性树脂, 图像分析, 分形