저작자표시-비영리-변경금지 2.0 대한민국 이용자는 아래의 조건을 ...

3
the density of neat PBS (1.268 g/cm )
ratio =
the density of PBS/CNFsnanocomposite
foam (g/cm
Blowing 3
We can see that the increase of the blowing temperature, time, and
CBA content led to the blowing ratio increase. The maximum values of
the blowing ratio at 4, 6, and 8 phr CBA content were 5.028, 7.813,
and 12.025, respectively. It is also believed that the inter-relationship of
above foaming conditions plays a key role to determine the blowing
ratio.
The blowing temperature dependence on the cell size distribution of
PBS/2 wt% nanocomposite foams is represented in Figure 6. We
measured the size of more than 75 cells in fractured surface from the
OM micrograph. It is evident that the CNFs-reinforced nanocomposite
foams almost were in accordance with a Gaussian distribution. When
increasing the blowing temperature, the broad cell size distribution was
examined, indicating that the dispersity of the cell size is much larger.
Also, it was found that the presence of CNFs acted as an efficient
nucleation agent, and well-controlled the cell size accordingly.
38
)