Table 5. Defoaming Results (φ ≥ 14 μm) of No. 65 AC with Different Methods.

method	number of foam
antifoaming agent/μL	initial	0.2		0.5		1
	3202	2114		726		657
natural static method/min	initial	5	10	30	60	120	240
	120 616	27 803	7324	342	283	211	241
ultrasonic method/min	initial	1	2	3	5	10	15
	106 462	1118	790	707	667	624	577
positive pressure method/MPa	initial	0.01		0.02	0.03	0.04
	82 664	919		911	784	775
natural static + ultrasonic method/min + min	initial	5 + 5		5 + 10	5 +15	5 + 20
	82 095	754		307	268	185
natural static + positive pressure/min + MPa	initial	5 + 0.04		10 + 0.04	15 + 0.04	20 + 0.04
	90 299	355		251	225	196