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1.河南大学化学化工学院,开封 475004
2.郑州工业应用技术学院,郑州 451150
Published:20 June 2016,
Received:10 August 2015,
Revised:11 January 2016,
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Shi-hong CEN, Hui-ting SHAN, Yu-feng WU, Gao-feng ZHANG, Ying XU. Synthesis of Poly(aspartic acid) /3,5-Diamino Benzoic Acid Graft Copolymer and Evaluation of Its Scale and Corrosion Inhibitions. [J]. Polymer Bulletin 29(6):63-70(2016)
DOI:
Shi-hong CEN, Hui-ting SHAN, Yu-feng WU, Gao-feng ZHANG, Ying XU. Synthesis of Poly(aspartic acid) /3,5-Diamino Benzoic Acid Graft Copolymer and Evaluation of Its Scale and Corrosion Inhibitions. [J]. Polymer Bulletin 29(6):63-70(2016) DOI: 10.14028/j.cnki.1003-3726.2016.06.009.
通过氨基开环的方法合成了聚天冬氨酸/3,5-二氨基苯甲酸接枝共聚物(PASP/3,5-DMBA),采用静态阻垢、动态腐蚀等方法考察了该共聚物的阻垢和缓蚀性能。结果表明,3,5-二氨基苯甲酸的引入可有效改善聚天冬氨酸(PASP)的阻垢与缓蚀性能,尤其在较低的浓度下对CaSO
4
和Ca
3
(PO
)
2
的阻垢性能有明显的提高。当PASP/3,5-DMBA药剂用量分别为1. 25mg/L、6mg/L时,其对CaCO
、CaSO
的阻垢效率接近100%。当用量为18mg/L时,对Ca
的阻垢效率可达75%。通过扫描电镜(SEM)观察发现,加入PASP/3,5- DMBA后钙垢晶体结构发生了畸变,呈分散开花状。
Poly(aspartic acid)/3
5-diamino benzoic acid graft copolymer(PASP/3
5-DMBA) was synthesized by using PSI and 3
5-DMBA as the starting materials
and its scale and corrosion inhibitions were evaluated by static and rotary loss test respectively. The results showed that the introduction of 3
5-DMBA could effectively improve the scale and corrosion performances of PASP. Remarkably the scale inhibition rates against CaSO
and Ca
(PO
)
increased significantly at low dosages. The inhibition efficiencies of PASP/3
5-DMBA against CaCO
and CaSO
were close to 100 % when the dosages were 1. 25mg/L and 6mg/L respectively. Scale inhibition efficiency against Ca
could reach to 75% when the dosage was 18mg/L. After PASP/3
5-DMBA was added
CaCO
CaSO
deposits showed flower and cascade patterns with floppy accumulation as observed by scanning electron microscopy (SEM).
聚天冬氨酸接枝共聚物阻垢缓蚀聚天冬氨酸接枝共聚物阻垢缓蚀
Poly(aspartic acid)Graft copolymerScale inhibitionCorrosion inhibitionPoly(aspartic acid)Graft copolymerScale inhibitionCorrosion inhibition
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