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来源：百度知道 编辑：UC知道 时间：2024/05/27 08:22:30
本课题根据Shell薄膜蒸发计原理自行设计和建立了测量溶剂挥发速率的装置，并在标准条件下对实验装置进行标定，通过对实验数据进行分析，验证了该装置测定溶剂挥发速率的可行性和可靠性，随后测定多种常用溶剂在铝盘上的相对挥发速率。根据气相传质的有效膜理论和溶剂挥发过程热量守恒原理，建立了不同底材上溶剂挥发计算模型，并由文献数据和实验数据对模型参数进行了拟合。根据模型，不仅能预测溶剂的t90，同时还能得到膜材温度随溶剂挥发而下降达到的最低温度Tmin。

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This topic designs and builds up measuring melting agent to vaporize the device of velocity by oneself according to the atmometer principle of the Shell thin film, and under the standard condition to experiment the device carry on a mark settle, pass to carry on analysis to the experiment data, verifying should equip measurement melting agent to vaporize possibility and credibility of velocity, measuresing various in common use melting agents in the aluminum dish later on of opposite vaporize velocity.Vaporize process calories to guard principle according to valid film theories and melting agent of spirit devolution quality, built up a different bottom material a top melting agent to vaporize calculation model, and is carried on drawing up to match to the model parameter by the cultural heritage data and the experiment data.According to the model, not only can predict the t of melting agent 90, in the meantime also the lowest temperature Tmin canned get a film