Application of Rough Set Theory to Study of Odor Tracing of Vehicle Polyvinyl Chloride Artificial Leather

Abstract:

The paper tries to put forward the application of mathematical analysis to odor tracing research of vehicle components and raw materials. The tracing of odor of vehicle polyvinyl chloride artificial leather was studied with a method based on the rough set theory, the fuzzy mathematics theory and the objective multiattribute weight distribution analysis. The results show that the weight distribution of each attribute is 0.082 3(flame retardant), 0.432(foaming agent), 0.082 7(light stabilizer), 0.221(heat stabilizer) and 0.182(resin). The foaming agent is the primary cause of polyvinyl chloride artificial leather odor. Then the mechanism of odor formation by blowing agents was analyzed by gas chromatographymass spectrometry, which confirmed that the mathematical analysis method based on rough set theory could screen large quantities of data and complete data mining for useful information from the odor intensity value which was subjective and fuzzy. Weight allocation was acquired by introducing the concept of attribute importance, thus the main cause of odor of PVC artificial leather formula was found.