文章摘要
尹召龙,张庚,刘潘勤,杨玉华.β-PASP阻垢剂的合成及阻垢缓蚀性能[J].精细化工,2019,36(10):
β-PASP阻垢剂的合成及阻垢缓蚀性能
Synthesis of β-PASP Scale Inhibitor and Its Scale and Corrosion Inhibition Performance
投稿时间:2019-02-19  修订日期:2019-05-06
DOI:
中文关键词: 改性聚天冬氨酸  阻垢剂  β-二羰基化合物  阻垢缓蚀性能  合成工艺优化
英文关键词: modified polyaspartic acid  scale inhibitor  β-dicarbonyl compound  scale and corrosion inhibition per-formance  Optimization of synthesis Process
基金项目:
作者单位E-mail
尹召龙 兰州交通大学化学与生物工程学院 yangyuhua@mail.lzjtu.cn 
张庚 西安创联华特表面处理技术有限责任公司  
刘潘勤 兰州交通大学化学与生物工程学院  
杨玉华 兰州交通大学化学与生物工程学院 yangyuhua@mail.lzjtu.cn 
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中文摘要:
      以水为溶剂,在氢氧化钠的催化下,以β-二羰基化合物为绿色接枝剂,利用其活性亚甲基对中间体聚琥珀酰亚胺(PSI)进行开环改性,合成了3种β-二羰基化合物改性聚天冬氨酸(β-PASP)阻垢剂。采用 IR对β-PASP进行了结构表征,通过正交实验优化了PSI的最佳合成条件,根据优化条件评价了β-PASP的阻垢缓蚀性能。实验结果表明,β-PASP的最佳合成工艺为:n(PSI):n(β-二羰基化合物):n(NaOH)=1:0.6:6,反应时间18~24h,反应温度35℃,原料质量分数15%。与PASP相比,3种β-PASP具有更好的螯合分散性,在药剂质量浓度 为8~10mg/L时,对碳酸钙的阻垢率均可达到100%。同时,β-PASP对A3碳钢的缓蚀效果也好于PASP,在加药量为5mg/L时,对A3碳钢的缓蚀效果最好 。
英文摘要:
      Using water as solvent and sodium hydroxide as green grafting agent, three modified Polyaspartic acid (PASP) scale inhibitors, β-PASP, were synthesized by ring-opening modification of the intermediate polysuccinimide (PSI) which used three β-dicarbonyl compounds as their grafting reagents. The structure of β-PASP was characterized by Fourier transform infrared spectroscopy (IR). The optimal synthesis conditions of PSI were investigated by orthogonal experiment. According to the optimized conditions, the scale and corrosion inhibition performance of β-PASP were also evaluated respectively. The optimum synthesis process of β-PASP were summarrized as follow: the n(PSI): n(β-dicarbonyl compound): n(NaOH)=1:0.6:6, the reaction time was 18~24h, the grafting reaction temperature was 35°C and the mass fraction of raw material was 15%. Experimental results demonstrated that three modified PASP ex-hibited more excellent scale inhibition property against CaCO3 than PASP, and the scale inhibition ef?ciency can reach 100% when the mass dosage was 8~10 mg/L. At the same time, β-PASP inhibitors possesses better corrosion inhibition properties on A3 carbon steel than PASP.
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