Table 2. Effect of Colloidal Silica on Properties of Thermally Expandable Microspheres Properties
Codes
SS-SOL 30E
SS-SOL 30F
SS-SOL 60
SS-SOL 100
T
s
(°C)
128.5
128.9
131.1
123.4
T
m
(°C)
149.3
148.8
151.3
146.7
D
max
(μm)
805.2
809.3
547.6
412.5
입도 (μm)
21.33
25.21
25.59
61.70
Span
1.703
1.726
1.908
2.257