干缩法测定黄竹纤维饱和点的研究

Research on FSP of Dendrocalamus Membranaceus According to its Shrinkage

以黄竹为研究对象 ,测定了不同含水率下黄竹的径向和弦向干缩率。采用曲线拟合建模法 ,用三次曲线对试验数据进行拟合 ,经检验拟合效果较好。根据曲线性质和试验数据的特点 ,找出曲线上变化的关键点 ,定义为竹材纤维饱和点。由弦向和径向干缩得出的黄竹纤维饱和点分别为2 4 .6 4%和 2 9.6 5 %。

The paper tests shrinkage rates of radial and tangential dimension in D.membracaceus under different moisture content. With the curve fit model method, the cubic equation is adopted to fit the experiment data resulting in good effect. According to the equation and testing figure, the critical point in the curve is found out and is further defined as fiber saturation point (FSP). The paper illustrates the FSP values derived from the radial and tangential dimension in D. Membranaceus are 24.64% and 29.65% respectively.