复合材料粘接结构弱粘接试件的制备方法

针对复合材料粘接结构强度弱化检测方法研究中的弱粘接试件制备问题,通过改变胶层的固化温度来制备试件。首先制备了铝—铝粘接试件,剪切强度拉伸实验表明:其剪切强度随固化温度的降低而减小。在相同胶粘剂、固化温度条件下,制作了复合材料—橡胶粘接试件,剥离强度拉伸实验表明:其剥离强度随固化温度的降低而降低。研究表明,铝—铝粘接试件的剪切强度随温度变化规律可作为复合材料粘接试件制备工艺的参考指导,通过改变固化温度可以实现对复合材料粘接结构弱粘接试件的制备。

The preparation method of specimens with weak bonded for composite adhesive structure

According to the problem of the preparation of specimens with weak bonded for the study of the mothod to test the strength weakening in composite adhesive structure, specimens have been prepared by changing curing temperature of adhesive layer. First, The adhesive specimens of aluminium- aluminium have been prepared, the tensile experiments of shear strength indicate that the shear strength of specimens is depressed by the decline of curing temperature. The adhesive specimens of composite-rubber have been produced by using the same adhesive in the same condition of curing temperature, the tensile experiments of peel strength in composite adhesive structure indicate that peel strength is depressed by the decline of curing temperature. The study shows that the change rule between shear strength and curing temperature can be used to guide the preparation technology of composite adhesive specimens, the specimens with weak bonded of composite adhesive structure can be prepared by changing the curing temperature of adhesive layer.