Table 2. Effect of Cross-Linking Agents on Properties of Thermally Expandable Microspheres
Codes
A (r 0.5)
A (r 1.0)
A (r 1.5)
A (r 2.0)
T
s
(°C)
132.8
135.7
134.1
143.2
T
m
(°C)
174.2
173.9
179.8
162.8
D
max
(μm)
2689
2122
2238
1082
Particle size (μm)
25.5
27.3
27.8
34.2
Span
1.7
1.7
1.7
2.1