Gel Characteristics of Urea-Formaldehyde Resin under Shear Flow Conditions

Table 1

Gelling time for UFR in static conditions and motion (viscosity 100 mPa·s for motion).

	Ratios (A : B)*	Speed of rotor/rpm
		0	987	1560	1980
Gel time/s	10 : 1	423	541	630	820
	10 : 2	190	350	460	542
	10 : 4	92	285	340	420

∗The concentration of B (acidity curing agent) is 8%.