采用反相微乳液法合成了季铵型两性聚丙烯酰胺，检测了制备的两性聚丙烯酰胺的助留助滤及增强性能.实验结果表明，当加入量为0.5%时，纸张的抗张指数提高了11.37%，撕裂指数提高了18.52%，填料留着率提高了7.66%，打浆度下降了12.9%，此时助留、助滤及增强效果最好.% Quaternary ammonium amphoteric polyacrylamide was synthesized by inverse micro emulsion. The retention, drainage performance and strength of amphoteric polyacrylamide were tested. The results show that when the dosage is 0.5%, the best performance in retention, drainage and strengthening can be obtained with the tensile index increased by 11.37%, tear index increased by 18.52%, retention rate increased by 7.66%, meanwhile the beating degree decreased by 12.9%.
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