【摘要】 针对聚天冬氨酸(PASP)及其四元复合配方的阻垢缓蚀性能进行研究。聚天冬氨酸具有缓蚀和阻垢双重功能,但用做缓蚀剂时用量较大(100 mg/L)。为了降低成本,对聚天冬氨酸、苯并三氮唑(BTA)、钨酸钠和葡糖酸钠进行四元复配研究,通过正交试验得到最佳配比:PASP∶BTA∶钠钨酸钠∶葡萄糖酸钠是10∶0.5∶20∶10(总浓度为40.5 mg/L),该配方对铜的阻垢率和缓蚀率分别为99.22%和0.000 6 mm/a,具有较好的阻垢缓蚀效果。更多还原

【Abstract】 In this article,the scale and corrosion inhibition performances of Polyaspartic acid( PASP)and PASP-based composite were studied. The results showed the single PASP has good scale and corrosion inhibition performances,but the quantity of PASP used for corrosion inhibition is large( 100 mg/L). The synergistic effect of the formula was studied by orthogonal test,the optimum formula of the Polyaspartic acid was obtained,which was composed of 10 mg/L PASP,0. 5 mg/L benzotriazole,20 mg/L sodium tungstate and 10 mg/L sodium gluconate( total concentration: 40. 5 mg/L).Experimental results showed the corrosion rate of HSn-70 A copper is only 0. 000 6 mm/a and corresponding corrosion inhibiting rate reaches 99. 22%. The formula has excellent effect of scale andcorrosion inhibition.更多还原