基于气味分子相互作用的汽车真皮内饰特征气味调控机制研究

汽车行业是我国国民经济重要支柱产业。车内空气质量问题得到了全球性关注，真皮是车内气味的重要来源。针对真皮内饰中挥发性有机化合物成分复杂、特征气味组分不明确的问题，本项目以汽车真皮内饰为研究模型，采用GC-MS、GC-O和电子鼻分析手段，并结合香韵剖析法和气味重组缺失分析法多重技术，精确甄别真皮内饰的关键特征气味成分，全面构建汽车真皮内饰特征气味指纹图谱；通过S曲线法、σ-τ图法和OAV法深入研究气味成分与香韵结构相互作用，创建以抑制汽车真皮内饰不良气味特征为核心的构效关系理论；并采用化学计量学理论体系中的矢量模型、U模型和累加模型，建立汽车真皮内饰特征气味成分、香韵结构与气味品质调控判定结果的相关性，预测特征气味品质模型，系统揭示汽车真皮内饰特征气味的调控机制，发展以气味分子相互作用为基础的汽车真皮内饰特征气味调控新方法，为汽车车内气味的标准化评价和有效控制提供重要理论依据和技术储备。

Automotive industry is the essential segment of national economy in China. The air quality in cars attracts the global concerns. Leather is the important source of the automotive odors. However, there are some key scientific problems such as the complexity of the volatile organic compounds and the unclear characteristic odor compositions in the leather interior odors. In this project, the automotive leather interiors will be studied as a model in detail. The key odor compounds can be determined by using GC-MS, GC-O and electronic nose combined with the fragrance note analysis and the odor recombination-deficiency evaluation. The whole characteristic odor fingerprints of the automotive leather interiors can first be built up. The interaction mechanism between the characteristic odor compositions and fragrance notes can be investigated with S curve, σ-τ plot and odor activity values (OAV) methods. The relationship among the characteristic odor compounds, fragrance notes and the quality results of the sensory evaluation can be further established by Vector model, U model and accumulation model. The olfactory quality model of the automotive leather interiors can be predicted. The characteristic odor regulation mechanism of the automotive leather interiors and their novel methods can be developed. In all, this study will provide the important basic theory and technological reserve to the standard evaluation and the effective control of the odors in the car.