Figure 1
FT-IR images of the xerogels with different CA contents (CA/M).
Figure 2
TG-DTA curve of xerogel decomposition.
Figure 3
SEM images of the precursors with different H/CA ratios: (a) 0.5, (b) 1.0, (c) 1.5, (d) 2.0, and (e) undoped.
Figure 4
N2 adsorption–desorption isotherms of precursor BET at different H/CA ratios: (a) 0.5, (b) 1.0, (c) 1.5, (d) 2.0, and (e) undoped.
Table 1
Specific surface area, pore volume, and pore diameter of the precursors under different H/CA conditions
| H/CA | BET surface area (m2/g) | Pore volume (cm3/g) | Average pore size (nm) |
|---|---|---|---|
| Undoped | 8.5823 | 0.036 | 10.45 |
| 0.5 | 13.8358 | 0.078 | 20.21 |
| 1.0 | 11.4443 | 0.042 | 21.32 |
| 1.5 | 8.9939 | 0.030 | 29.25 |
| 2.0 | 3.7390 | 0.023 | 31.67 |
Figure 5
SEM images of the pigments with different H/CA ratios and particle size distribution maps: (a)–(d) H/CA = 0.5, 1.0, 1.5, and 2.0; (e)–(h) H/CA = 0.5, 1.0, 1.5, and 2.0.
Figure 6
γ-Ce2S3 pigment prepared at different H/CA ratios: (a) chromaticity pattern and (b) CIE color gamut coordinates.
Table 2
Chromaticity values and coordinates of the γ-Ce2S3 pigment prepared at different H/CA ratios
| H/CA | L* | a* | b* | (x, y) | Sample |
|---|---|---|---|---|---|
| 0.5 | 36.12 | 37.88 | 27.65 | (0.5354, 0.3491) |
|
| 1.0 | 36.16 | 36.17 | 28.04 | (0.5346, 0.3477) |
|
| 1.5 | 35.95 | 35.84 | 28.84 | (0.5338, 0.3459) |
|
| 2.0 | 32.38 | 35.38 | 28.81 | (0.5256, 0.3439) |
|
Figure 7
SEM images of the precursors before and after adding ethylene glycol: (a) H/CA = 0.5 and (b) EG/CA = 0.5.
Figure 8
N2 adsorption–desorption isotherms of precursor BET before and after the addition of ethylene glycol: (a) H/CA = 0.5 and (b) EG/CA = 0.5.
Table 3
Specific surface area, pore volume, and pore diameter of the precursors at H/CA = 0.5 and EG/CA = 0.5
| EG/CA | BET surface area (m2/g) | Pore volume (cm3/g) | Average pore size (nm) |
|---|---|---|---|
| H/CA = 0.5 | 13.8358 | 0.078 | 20.21 |
| EG/CA = 0.5 | 22.3857 | 0.092 | 17.20 |
Figure 9
SEM images of the pigments with different EG/CA and particle size distribution maps: (a)–(d) EG/CA = 0.5, 1.0, 1.5, and 2.0; (e)–(h) EG/CA = 0.5, 1.0, 1.5, and 2.0.
Figure 10
γ-Ce2S3 pigment prepared at different EG/CA ratios: (a) chromaticity pattern and (b) CIE color gamut coordinates.
Table 4
Chromaticity values and coordinates of the γ-Ce2S3 pigment prepared at different EG/CA ratios
| EG/CA | L* | a * | b * | (x, y) | Sample |
|---|---|---|---|---|---|
| 0.5 | 37.99 | 40.21 | 29.81 | (0.5465, 0.3426) |
|
| 1.0 | 36.59 | 37.95 | 29.04 | (0.5388, 0.3427) |
|
| 1.5 | 36.64 | 36.52 | 27.25 | (0.5343, 0.3415) |
|
| 2.0 | 36.42 | 36.61 | 27.84 | (0.5365, 0.3387) |
|
Figure 11
UV-Vis reflection spectra of vulcanized products with EG/CA and H/CA = 0.5.
Figure 12
TG-DTA curves of vulcanized products with (a) H/CA = 0.5 and (b) EG/CA = 0.5.