Development of an adhesion test for characterizing the interface fiber/polymer matrix
Development of an adhesion test for characterizing the interface fiber/polymer matrix
复制标题
DOI：
10.4028/www.scientific.net/kem.498.210
复制
发表时间：
2012-01-01
期刊：
影响因子：
--
通讯作者：
Nassiet, Valerie
中科院分区：
文献类型：
--
作者：
Hassoune-Rhabbour, Bouchra;Poussines, Laurence;Nassiet, Valerie
众所周知，纤维与基体之间的粘附水平是影响复合材料力学性能的重要因素。纤维/基体界面与复合材料的结构和性能密切相关。此外，在纤维和聚合物之间的接触处产生界面，通过“渐变”特性，该界面可以成为复合材料中的薄弱环节。文献中确定的几种微观机械测试可以评估纤维/聚合物基体界面的剪切强度。这些测试或需要设计测试，其中纤维尺寸测微计（微滴测试）单独存在于树脂中，目的是量化纤维/基体界面处的剪切应力，或将增强材料视为一个整体（织物、毛毡……UD）。这称为“拉出”。我们的目标是研究位接口/矩阵。为了测试可重复性和易于实施，开发了一种基于“微滴”测试的新几何形状。遵循最先进的技术，必须适应我们问题中预先存在的测试，即使用锁作为直径接近毫米的加固。提出了一种新的样品几何形状来表征纤维/基体界面聚合物。然后我们对纤维/基体粘附力测量的效率和灵敏度进行了定性和量化。
It is known that the level of adhesion between the fiber and the matrix is an important factor affecting the mechanical properties of a composite material. The fiber / matrix interface is strongly related to the structure and properties of composites. In addition, at the contact between the fiber and the polymer creates an interphase which, by the "gradiation" properties, can be the weak link in the composite material. Several micromechanical tests identified in the literature allow the evaluation of the shear strength of the interface fiber / polymer matrix. These tests, or require the design of test in which the fiber dimension micrometer (test of micro-drop) is alone in the resin with the aim to quantify the shear stress at the fiber / matrix interface, or consider reinforcement as a whole (fabric, felt, ... UD). This is called "pull out". Our goal is to study a bit interface / matrix. To test reproducibility and easy implementation, a new geometry based on the test of "micro-drop" was developed.Following a state of the art, had to adapt the tests pre - existing in our problem that uses a lock as reinforcement in diameter adjacent to the millimeter. A new specimen geometry was proposed to characterize the fiber / matrix interface polymer. Then we have qualified and quantified the efficiency and sensitivity of the measurement of fiber / matrix adhesion.