Physical and rheological properties of polymer modified bitumen were compared before and after adding nanoclay to the bitumen.
According to Fig. 6, adding nanoclay to pure ABS cannot act as a barrier to the CO2 exit and, consequently, will not change the desorption rate of CO2 significantly.
According to Table 14, the cell size of foamed samples decreases by adding nanoclay particles.
The simultaneously exerting shear and adding nanoclay leaded to not only high content of polar phase but also highly oriented structure.
The current study was carried out in order to determine the effect of adding nanoclay and foaming conditions on the structural properties of ABS/PMMA/clay nanocomposite foams such as foam density, foam expansion ratio, cell density, and cell size.
The obtained results reveal that adding nanoclay increases the cell density and decreases both foam density and cell size of ABS/nanoclay composite foams compared to the pure ABS foams.
In this study, we proposed a convenient pathway to achieve large amount of polar phase in injection-molding part through cooperation of exerting oscillatory shear field and adding nanoclay.
Present study investigates the effect of adding nanoclay particles and foaming conditions on cellular properties of ABS/Nanoclay nanocomposite foams.
Regarding the effect of nanoclay content on the cell density of foamed samples, it is concluded from Fig. 11 that at low levels of saturation pressure (i.e., 3 MPa), adding nanoclay did not affect the cell density, while at higher amounts of saturation pressure (i.e., 4 and 5 MPa), adding nanoclay significantly affected the cell density of the foamed samples.
In other words, adding nanoclay can influence most significantly the cell density when it is in its medium level (i.e., optimum level of 2 wt %).
