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本文运用现代先进的微粒检测手段光子相关光谱对常见的两类无机高分子絮凝剂的形态进行了表征.实验结果表明:在所测聚合氯化铁溶液中.体系呈较为单一的集中分布.由平移扩散系数计算得到平均有效直径在5—11nm左右.在所测聚合氯化铝溶液中,主要为双峰分布.熟化后样品约为2—5nm的小颗粒与数十nm以上分布较宽的聚集体.另外,本文对光子相关光谱在形态表征中的优缺点及其它应用的可能性也作了一定的论述.
In this paper, the morphology of two common types of inorganic polymer flocculant has been characterized by the modern advanced microparticle detection photon correlation spectroscopy.The experimental results show that the system is a single concentrated distribution in the measured solution of polymeric ferric chloride The average effective diameter calculated by the translational diffusion coefficient is about 5-11 nm, and the bimodal distribution is mainly observed in the measured aluminum chlorohydrate solution. The small particles with the size of about 2-5 nm after ripening are distributed more than tens of nm In addition, the advantages and disadvantages of photon correlation spectroscopy in morphological characterization and the possibility of other applications are also discussed in this paper.