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Nondestructive testing of defects in adhesive joints

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Table 1: Mechanical properties <strong>of</strong> PPT/m-LLDPE blends and its Nanocomposites<br />

Tensile<br />

Tensile Flexural Flexural Impact<br />

Compositions<br />

Strength (MPa) Modulus (MPa) Strength (MPa) Modulus (MPa) Strength (J/m)<br />

PTT Virg<strong>in</strong> 48.20 1420 58.80 2670 26.80<br />

PTT/m-LLDPE (90/10) 45.32 1092.3 55.92 2342 31.22<br />

PTT/m-LLDPE (80/20) 41.08 984.33 52.70 2180 31.22<br />

PTT/m-LLDPE (70/30) 37.92 933.41 49.81 2028 33.76<br />

PTT/m-LLDPE (50/50) 32.27 866.52 43.61 1816 31.11<br />

PTT/m-<br />

LLDPE(70/30)/C20A5%<br />

50.86 1422 61.73 2695 37.23<br />

PTT/m-LLDPE<br />

70/30)/C30B5%<br />

53.24 1507 63.77 2810 39.88<br />

PTT/m-<br />

LLDPE(70/30)/B109 5%<br />

51.36 1470 62.12 2752 33.76<br />

Figure: 1- XRD pattern <strong>of</strong> (a) PTT/m-<br />

LLDPE/C30B5 %( b) PTT/m-LLDPE/B109,<br />

5 %( c) PTT/m-LLDPE/C20A5%<br />

Storage Modulus E'<br />

12000<br />

PTT Virg<strong>in</strong><br />

PTT/m-LLDPE(70/30)<br />

11000<br />

PTT/m-LLDPE(70/30)/C20A5 %<br />

PTT/m-LLDPE(70/30)/B109 5%<br />

10000<br />

9000<br />

8000<br />

7000<br />

6000<br />

5000<br />

4000<br />

3000<br />

2000<br />

1000<br />

0<br />

PTT/m-LLDPE(70/30)/C30B5%<br />

-150 -100 -50 0 50 100 150 200<br />

Temperature 0 C<br />

Figure 3: Temperature dependence <strong>of</strong> Storage<br />

modulus (E’) blend and nanocomposites at 5%<br />

load<strong>in</strong>g <strong>of</strong> nanoclay<br />

(a) (b)<br />

(c)<br />

Figure: 2 TEM micrographs <strong>of</strong> (a) PTT/m-<br />

LLDPE/C30B 5% (b) PTT/m-LLDPE/C20A 5% (c )<br />

PTT/m-LLDPE/B109, 5%<br />

Figure: 4 - DSC thermogram <strong>of</strong>(a)PTT virg<strong>in</strong> (b) PTT/m-<br />

LLDPE(70/30) (c) ) PTT/m-LLDPE(70/30)/C20A 5% (d)<br />

PTT/m-LLDPE(70/30)/B109 5% (e) PTT/m-<br />

LLDPE(70/30)/C30B 5%

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