以顺酐环化、聚合产物聚环氧琥珀酸(PE-SA)和硫脲(CSN)为原料合成了一种聚环氧琥珀酸衍生物(CSN-PESA),利用红外光谱和核磁共振谱对聚环氧琥珀酸衍生物的结构进行了表征,测定了聚环氧琥珀酸和硫脲不同比例时产物的分子量；探讨了聚环氧琥珀酸衍生物的阻垢性能、分散氧化铁的性能和生物降解性能；利用红外光谱和扫描电镜对垢的晶型(形)进行了研究。结果表明,当PESA与CSN 的质量比为8∶4时,产物的分子量达到了581左右,其阻垢和分散效果最好；在钙离子浓度为400 mg/L、碳酸氢根离子浓度为800 mg/L 的介质中,当聚环氧琥珀酸衍生物用量为8 mg/L 时,阻垢率达到95％以上；当n(Ca2＋)＝150 mg/L,n(Fe2＋)＝10 mg/L,加药量为20 mg/L时,其上清液最小透光率为75％。结果表明,改性聚环氧琥珀酸衍生物对碳酸钙垢有晶格扭曲的作用,可把稳定的方解石转化为球霰石,表现出良好的阻垢分散性能和可生物降解性能。
Polyethylene succinic acid (PESA)was synthetized through cyclization and polymerization of maleic anhydride,and modified polyethylene succinic acid derivatives (CSN-PESA)was prepared with PESA and thio-urea.Characterization of the structure of the modified polyethylene succinate derivatives was proved by infrared spectrum and nuclear magnetic resonance spectrum.Molecular weight was studied in the condition of different proportion of PESA and thiourea.The scale inhibition performance,dispersing iron oxide performance and bio-degradability were investigated in aqueous solution.The scale of the crystal calcium carbonate was studied by in-frared spectroscopy and scanning electron microscopy (SEM).The experimental results showed that the molec-ular weight of CSN-PESA reached 581 when the mass ratio of the CSN-PESA was 8∶4,which its scale inhibi-tion and dispersion effect were optimum.When the dosage of polyethylene succinate derivatives was 8 mg/L, the calcium ion concentration is 400 mg/L and bicarbonate ions concentration of was 800 mg/L medium,anti-scaling ratio was above 95%;The minimum light transmittance of the clear liquid was 75% when the dosage of polyethylene succinate derivatives was 20 mg/L,the concentration of Ca2+ was 150 mg/L and the concentration of Fe2+ was 10 mg/L.It was proved that CSN-PESA could distort calcium carbonate crystallite from steady cal-cite to vaterite,and show good performance of scale inhibition and biodegradable properties .
参考文献
| [1] | Guo Xuehu;Shi Maocai;Du Suzhen .Advance in research of polyepoxysuccinic acid[J].Corrosion Science and Pro-tection Technology,2014,26(4):82-84. |
| [2] | 宋娜 .新型绿色阻垢剂ESA-HAPS共聚物合成工艺及性能[D].内蒙古工业大学,2013. |
| [3] | 安良海,牟占军,武朝军,李健.聚环氧琥珀酸的改性及其阻垢机理的研究[J].广东化工,2014(11):25-26. |
| [4] | 石文艳,吕志敏,王风云,褚玉婷.聚环氧琥珀酸及丙烯酸共聚物阻垢机理的分子动力学模拟[J].化学通报（印刷版）,2011(07):651-658. |
| [5] | Wang Chunrong .Copolymerization of epoxysuccinic acid and acrylic acid and its performance research[D].Bei-jing:Beijing University of Chemical Technology,2007. |
| [6] | Liu Zhenfa;Fu Haolin;Liu Xuan .Synthesis and proper-ties of the IA/SAS/SHP copolymer and Itaconic acid ho-moplymer[J].Technology of Water Treatment,2014,40(7):38-43. |
| [7] | Gao Yuhua .Synthesis and performance research of pol-yaspartic acid derivative[D].Tangshan:Hebei University of Technology,2010. |
| [8] | 吴伟,张凌云,阎虎生.窄分子量分布的聚丙烯酸的合成及其阻垢性能[J].应用化学,2007(09):1050-1053. |
| [9] | 牟静,李小瑞,费贵强,王海花,税小军,杨杉杉.MA/AA/AM/AMPS四元共聚物的合成及其对硫酸钙和碳酸钙的阻垢性能[J].功能材料,2013(02):182-186. |
| [10] | OECD.301B.Guideline for the testing of chemicals[M].Paris:OECD Publishing,2003 |
| [11] | 张红春,袁辉志.可生物降解水处理剂的研究现状及评价方法[J].齐鲁石油化工,2007(01):43-47. |
| [12] | Reddy M M;Nancollas G H .The crystallization of calci-um carbonate[J].Crystal Growth,1971,36(2):166-172. |
| [13] | Kralj D;Brecevic L;Nielsen A E .Vaterite growth and dissolution in aqueous solution(I):Kinetics of crystal growth[J].Crystal Growth,1990,104:793-800. |
| [14] | Qingfeng Yang;Yangqiao Liu;Jie Ding;Ziqiu Shen;Anzhong Gu .Investigation of Calcium Carbonate Scaling Inhibition and Scale Morphology by AFM[J].Journal of Colloid and Interface Science,2001(2):608-621. |
| [15] | 高玉华,刘振法,郭茹辉,王延吉.聚天冬氨酸衍生物的合成及阻垢性能[J].化工学报,2009(08):2107-2111. |
| [16] | 高玉华,王延吉,刘振法,张利辉.聚天冬氨酸共聚物的合成、表征及性能研究[J].高校化学工程学报,2010(02):301-306. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%