ABSTRACT

Induction heating of timber/glass-joints at the level of lap-shear specimens is used to accelerate curing of a silane-terminated epoxy. It was shown that handling strength could be achieved within only 10 minutes of heating, instead of hours or days. This finding identifies inductive heating as a promising method for accelerated curing in the construction industry. The correlation of heat development with mixing ratio of particles was shown. This allows controlled post-curing until final strength is achieved. Fracture patterns were investigated using various surface analytical methods. The results showed almost no differences between induction cured and room temperature curing of the adhesives, regardless of the systems having different chemical composition due to the filler material. However, the results of the XPS have shown that in both cases, inductively cured samples and samples cured at room temperature, the added particles have good adhesion to the adhesive itself and therefore do not weaken the bond when it comes to mechanical testing.

摘要

在搭接剪切试样水平上对木材/玻璃接头进行感应加热，用于加速硅烷封端环氧树脂的固化。结果表明，只需加热 10 分钟即可达到处理强度，而不是数小时或数天。这一发现将感应加热确定为建筑行业加速固化的有前途的方法。显示了热发展与颗粒混合比的相关性。这允许控制后固化直到达到最终强度。使用各种表面分析方法研究了断裂模式。结果表明，粘合剂的感应固化和室温固化之间几乎没有差异，无论系统由于填充材料而具有不同的化学成分。然而，XPS 的结果表明，在这两种情况下，