三点弯曲法测定槟榔干果纤维层弹性模量研究

Study on elastic modulus of fiber layer of dried betel nut by three points bend method determination

建立一种评价槟榔纤维层力学特性的新方法。利用三点弯曲法测定槟榔干果的弹性模量,优化测定参数。并采用扫描电子显微镜和感官评价测试方法与其进行对比,通过辐照软化槟榔干果来验证该方法的科学性。研究结果认为:样品的含水量及宽度对弹性模量有一定影响,而测定条件则无显著影响;作为一种简单有效的测量手段,三点弯曲法可直接量化出槟榔干果纤维层的柔软度。

A new method for evaluating the mechanical properties of areca nut fiber layer is established.The elastic modulus of areca nut was determined by three-point bending method and the parameters were optimized.Scanning electron microscope(SEM)and sensory evaluation test were used to verify the scientific nature of the method.The results showed that the moisture content and width of the sample had a certain effect on the elastic modulus,but the measuring conditions had no significant effect on the elastic modulus,and the elastic modulus of areca nut dried fruit could be objectively and scientifically measured by the three-point bending method,As a simple and effective measurement method,the three-point bending method can directly quantify the softness of the fiber layer of areca nut.