Contents - Akademi Sains Malaysia

Z. Ahmad et al respectively. The height of the tip of the cone and the plateThe adhesives were prepared in accordance with themanufacturer’s instructions with due regard given tohandling precautions for the adhesives. The two-partadhesive was prepared by mixing the base adhesive andminutes. The adhesive was left to rest for 2 min beforestress and viscosity were recorded as a function of shearrate.Dynamic mechanical thermal analysis. The dynamicmechanical properties of the three types of adhesives werewas gripped as a cantilever beam between two clamps inthe DMTA system (Figure 2).A sinusoidally alternating force was applied to the endof the cantilever beam at the center of the equipment at aconstant frequency of 1 Hz and the temperature was rampedScanning electron microscopy. The broken samplesbefore and after exposure to different environments wereexamined. The fracture surface of adhesives was inspected500 mm500 mm500 mm2 mm500 mm2 mmPVC frame Glass platePVC frame Glass plateFigure 1. Mould for DMTA specimens.Figure 2. Beam sample clamped in single cantilever mode.39