PSI - Issue 5

L. ALEXANDRESCU et al. / Procedia Structural Integrity 5 (2017) 667–674 Laurentia Alexandrescu/ Structural Integrity Procedia 00 (2017) 000 – 000

673

7

The spectra recorded for the PE sample showthe IR frequencies (cm-1) in the table below:

Table 4 Characteristic bands for PE Frequency

Vibration assignments

Observed

calculated

E 12  744 A 12  1452 A 13  2864 E 13  2988 E 13  3310

720

R/RC=CH 2

(CH3 ) şi (CH 2 )

1473 2840 2918 3320

(CH 2 ) (CH) (CH 3 ) (CH) RCH=CH 2

The spectra recorded for the EPDME sample showthe IR frequencies (cm-1) in the table below:

Table 5 Characteristic bands for EPDM 721

Φ CH2

 CH3 sindiotactic CH3 asymmetric

1376 1433 2849 2916

δC – C

 CH2 asymetric From the overlapping spectra the presence of PE and EPDM in compounds is observed. The presence of PE in varying percentages is observed from the characteristic peak peaks. It is noticed that PE is more than the other ingredients, it is the majority material. PE - g - MA and ZnO and TiO 2 nanoparticles are not known, primarily due to the small amount (PE - g - MA - 5% and 3% - ZnO and TiO 2 , respectively, being metallic oxides that are spectrometrically observed).

Figure 5. Spectrum overlapped samples N15 - N18

CONCLUSIONS The experiments pursued the obtaining and characterization of PE/PE-g-MA/EPDM/nanoZnO and TiO 2 based polymeric nanocomposites, dynamically crosslinked with sulfur and accelerators. The technology for obtaining the elastic-plastic polymer nanocomposites with variable content of ZnO and TiO 2 nanoparticles has the advantage of simultaneously crosslinking and processing the elastomer in the plastic melt, HDPE respectively. The nanostructured polymeric materials obtained are blends with the structure of plastic in which crosslinked EPDM elastomer and ZnO