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本文主要是通过介绍粉尘地面立体足迹的形成、作用原理、几种常用固定剂的性质,分析形成足迹的粉尘颗粒的大小及松散程度,运用胶体与表面的吸附作用,聚集作用,以及亲液胶体的成膜对粉尘地面上的立体足迹的固定方法进行研究。在研究过程中首先通过介绍粉尘地面立体足迹形成机理来分析确定不同花纹足迹的反映情况及稳定性,以及不同固定剂与粉尘的作用情况;然后通过对不同花纹的足迹在不同地面上进行实验比较,其选用手法与试剂不同使得固定的立体足迹存在较大差异;最后根据实验结果进行分析得出:不同粉尘地面上大小花纹立体足迹的固定可以使用不同手法、用量及固定剂以达到最佳的效果。
This paper mainly introduces the formation of three-dimensional footprint of dust ground, the principle of action, the properties of several commonly used fixatives, the size and looseness of dust particles forming the footprint, the use of colloids and surface adsorption, aggregation, Of the film on the ground dust on the three-dimensional footprint of the fixed method of research. In the course of the study, first of all, by analyzing the formation mechanism of the three-dimensional footprint of dust ground, the situation and stability of the footprint of different patterns and the effect of different fixatives and dusts were analyzed. Then, the footprint of different patterns was compared on different ground , The choice of practices and reagents make the fixed three-dimensional footprint there is a big difference; Finally, based on experimental results were analyzed: different dust on the size of the pattern on the three-dimensional footprint can be fixed using different practices, dosage and fixative to achieve the best effect.