基于图像处理判定丁苯橡胶硫化胶中炭黑分散等级

Determination of Carbon Black Dispersion Grade in SBR Vulcanizate Based on Image Processing

通过高分辨透射电子显微镜(HR-TEM)对丁苯橡胶(SBR)硫化胶中炭黑分散状况进行观测,结合mapping谱图定位HR-TEM图像中氧化锌颗粒位置,再依托Matlab软件和图像处理理论,开展图像之间的代数运算,得到仅含有炭黑颗粒的二值化图像,最后基于模糊综合评价理论建立定量评价HR-TEM图像中炭黑分散状况的方法,实现SBR硫化胶中炭黑分散等级的判定。研究结果表明,与传统的人工识别法相比,基于图像处理的方法判定SBR硫化胶中炭黑分散状况实现了定量分析,该方法在一定程度上提高了炭黑分散等级判定的准确性和可靠性。

The dispersion of carbon black in styrene-butadiene rubber(SBR)vulcanizates was obtained by high-resolution transmission electron microscope(HR-TEM),and the position of zinc oxide particles in the HR-TEM image was located combined with the mapping spectrum.The binary image containing only carbon black particles was then obtained by algebraic operations between images based on the image processing theory using Matlab.Finally,a quantitative evaluation method of carbon black dispersion in HR-TEM images was established based on the fuzzy comprehensive evaluation theory,and the determination of the carbon black dispersion grade was achieved.The results showed that,compared with the traditional manual identification method,the method based on image processing could achieve quantitative analysis of the dispersion status of carbon black in SBR vulcanizate,and this method improved the accuracy and reliability of the determination of carbon black dispersion grade to a certain extent.