Results of test 2

Test 2 shows a different distribution of the PCM, the majority is at the insulated surface of the sandwich panel, but also small areas with PCM at the middle of the sandwich panel were found, see Figure 6 (a) and (b).

Figure 7, shows the reference sample and the sample with PCM, where thermal performance results show a higher delay on the insulated surface, this effect is expected using the PCM (increase thermal inertia). The reference sample and sample with PCM (free surface) had an equal behaviour.

(a) (b) (c) (d)

Figure 6 Test 2 (a) Sandwich panel with PCM (b) Zoom of the sample with PCM. Test 3 (c) Sandwich panel with PCM (d) Zoom of the sample with PCM

Figure7 Thermal performance test of the reference sandwich panel and sandwich panel with PCM (Test 2)

Table 2 shows the adhesion results of test 1, test 2 and test 3. In all tests the reference sample are within or close of the limits (0.1 MPa the minimum load for adhesion test in sandwich panels) and the sandwich panel results with PCM (test 2) are far below the limit.