0 引言LB薄膜是一种分子排列有序,超薄均匀且厚度可控的有机化合物分子膜。近年来LB技术发展很快,由于材料性质和组装方式上的多种变化,使其在分子电子学、微电子学、非线性光学及传感器等诸多领域中有很大的应用潜力。有了合适的材料、想制备具有予期性能的LB膜,必须有相应的拉膜机。因此,设计具有多项功能的LB拉膜机就成为一个重要课题。迄今已有多种拉膜机问世,国内的一般为单槽,结构简单,成本低,功能也较少。国外的如芬兰 0 Introduction LB film is a molecular arrangement of ordered, ultra-thin uniform thickness and controllable organic compounds molecular film. In recent years, the rapid development of LB technology, due to the variety of material properties and assembly methods, make it in molecular electronics, microelectronics, nonlinear optics and sensors and many other fields have great potential applications. With the right material, to produce a LB film with the desired properties, a suitable film former must be available. Therefore, the design of a number of functions of the LB film machine has become an important issue. So far a variety of drawing machine has come out, the domestic general single groove, simple structure, low cost, less functional. Foreign such as Finland