制造木质复合材常用酚醛树脂胶黏剂,这种胶黏剂在一定的温度下固化,将组成木质复合材的原料胶合在一起。为了较准确地确定制造木质复合材的热压时间、优化热压工艺以及获得良好的胶接性能,充分了解该胶黏剂固化过程是必要的。已有的文献对于制造木质复合材用酚醛树脂胶黏剂的化学合成、性能和固化机制等已经做了大量的研究,但对于应用计算机模拟的方法研究该胶黏剂的固化过程很少。本文根据酚醛树脂胶黏剂体系固化模型,应用MATLAB软件模拟制造木质复合材时酚醛树脂胶黏剂固化过程,初步探讨了该种胶黏剂体系固化的计算机动态模拟问题,该方法和理论可以是实现木质复合材的虚拟制造技术较重要的基础组成部分,同时也为在教学与科研中理解这一复杂过程提供了一个新途径。
A simulation approach of phenolic resin cure was simulated using MATLAB software for wood composite manufacturing. The datum from the differential scanning calorimetry(DSC) testing and the panel mechanical properties testing were compared with the datum from the simulation. The results indicated that the datum from DSC testing and simulation were approximately same. With the hot pressing time increased, the internal bond (IB) of the panel and the cure index from the simulations all were increased. The conclusion of this study is that as a new approach for understanding the complex resin cure phenomenon, this simulation can be used to research the cure of the phenolic resin for wood composites manufacturing, and it is a part of the virtual processing of wood composite.