二氧化氯缓蚀剂制备及性能研究

将多氨基磷酸盐、碳氢咪唑啉季铵盐、非离子表面活性剂、六亚甲基四铵和溶剂复配,制得二氧化氯缓蚀剂,采用静态失重法、电化学法评测缓蚀性能。研究了缓蚀剂对Q235、20#钢、304不锈钢、黄铜、铝试片在100,250,500,1 000 mg/L的二氧化氯溶液中的缓蚀情况。结果表明,在二氧化氯水溶液中加入ClO2缓蚀剂50～1 500 mg/L,可使标准试片Q235、20#钢、304不锈钢、黄铜、铝达到轻度腐蚀。     

一种无磷缓蚀阻垢剂的研制及其性能研究

以丙烯酸-2-丙烯酰胺-2-甲基丙磺酸共聚物、苯甲酸钠、氨基磺酸、异抗坏血酸钠和锌盐为原料研制一种循环冷却水无磷缓蚀阻垢剂.采用旋转挂片腐蚀试验、电化学试验、静态阻垢试验对循环冷却水无磷缓蚀阻垢剂的缓蚀和阻垢性能进行评定,采用扫描电子显微镜(SEM)对碳钢试片表面腐蚀形貌进行观察,结果表明循环冷却水无磷缓蚀阻垢剂是一种...     

低磷共聚物循环冷却水处理剂的合成及性能

以水为溶剂,采用过氧化氢/次磷酸氧化-还原体系为引发剂,用马来酸酐、对苯乙烯磺酸钠为单体,合成了低磷共聚物.通过正交实验确定了最佳合成反应条件.性能测试表明聚合产物具有良好的阻垢率和锌盐稳定性,对黄铜有缓蚀作用.元素分析表明共聚物中磷元素质量分数＜4%,黏均相对分子质量为1.7×104,红外光谱分析证明聚合产物分子结构中含有羧酸基、磺酸基和膦酰基等官能团.     

葡萄糖酸钠与乙酸钠复配对黄铜缓蚀性能研究

采用电化学方法考察了在3．5％NaCl介质溶液中葡萄糖酸钠和乙酸钠复配对黄铜的缓蚀作用,结果表明,单一缓蚀剂葡萄糖酸钠和乙酸钠的缓蚀效果都随其浓度的增加而增加,它们复配使用后,缓蚀效率大大提高,显著增强了对黄铜电极阴极和阳极电化学过程的抑制作用。     

一种循环冷却水无磷缓蚀阻垢剂的研制及其性能研究

以丙烯酸共聚物、氨基磺酸、水解聚马来酸酐（HPMA）、缓蚀剂D以及Zn2＋增效剂等为原料,研制出一种多元复合无磷缓蚀阻垢剂。采用旋转挂片腐蚀实验、静态阻垢实验以及腐蚀电化学实验对复合无磷缓蚀阻垢剂的性能进行评定,并用扫描电子显微镜（SEM）对试片的腐蚀形貌进行观察。由正交实验结果得到复合无磷缓蚀阻垢剂各药剂的最佳质量比...     

低磷复配缓蚀阻垢剂在循环冷却水中的研究与应用

以咪唑啉季铵盐、膦羧酸共聚物、丙烯酸-丙烯酸酯-磺酸盐共聚物、锌盐为主要成分复配低磷缓蚀阻垢剂,采用旋转挂片腐蚀试验、静态阻垢试验、动态模拟试验评价其缓蚀性能和阻垢性能。试验结果表明,上述4种成分按2.0∶1.0∶1.5∶1.0的质量比复配成低磷缓蚀阻垢剂,该药剂投加量为30 mg/L时,其缓蚀率和阻垢率分别为95.85%和91.62%。将该低磷缓蚀阻垢剂现场应用于鲅鱼圈钢铁燃气蒸汽联合循环发电机组(CCPP)的净环水处理系统,也取得良好的使用效果。     

环境友好型多功能海水缓蚀剂的研制及性能研究

为同时解决碳钢与铜材在海水中的腐蚀问题,将聚天冬氨酸、苯并三唑等5种原料按一定的质量比复配成多功能海水缓蚀剂。利用失重法和电化学法研究了海水缓蚀剂在海水中对A3碳钢及H62黄铜的缓蚀性能。结果表明,当海水缓蚀剂用量为150 mg/L时,对碳钢与黄铜在海水中的腐蚀均有良好的抑制作用,碳钢缓蚀率达到95.17%,黄铜缓蚀率达到93.67%。该海水缓蚀剂具有优良的生物降解性能,28 d后生物降解率达到82.6%。     

TJ—301型低磷高效水质稳定剂

正TJ—301型低磷高效水质稳定剂是突破传统的有机相合成方法,采用特殊催化剂和添加剂,创造性地在常温常压水相中合成的多元共聚物,主要含有马来酸基、丙烯酸基等基团,同时加入适量锌盐组成的低磷高效复合型水质稳定剂。该产品具有优异的缓蚀、阻垢和分散性能,特别是低磷配方(国内同类产品的1/3),大大降低了排水中的磷污染。     

环保型水稳剂的研制及应用

以锌盐、钼酸盐、低膦有机物、羧酸磺酸共聚物为循环水系统缓蚀阻垢剂的有效组份 ,研制了新型低膦缓蚀阻垢剂。其特点是含磷量仅为常规有机膦系列复合水处理剂的 30 %～ 5 0 %。循环水系统应用该水稳剂后 ,排污水磷含量 ( <1.0mg/L ,以P计 )符合环保要求 ,缓蚀阻垢性能达到中石化标准要求     

新型低磷缓蚀阻垢剂——ZD性能的研究

ＺＤ－缓蚀阻垢剂是以水为溶剂一步合成的低磷有机膦羧型多元共聚物,总磷含量（以ＰＯ＾３－４计≤５％,经静态、动态实验及现场实际应用表明：该产品具有优异的缓蚀阻垢性能。     

Calcium carbonate inhibition by a phosphonate-terminated poly(maleic-co-sulfonate) polymeric inhibitor

The precipitation of calcium carbonate scale on heat transfer surfaces widely occurs in numerous industrial processes. For the control of calcium carbonate scale and in response to environmental guidelines, the new low phosphonic copolymer was prepared through reaction of maleic anhydride with sodium p-styrene sulfonate in water with redox system of hypophosphorous and hydrogen peroxide as initiator. The anti-scale property of the low phosphonic copolymer towards CaCO₃ in the artificial cooling water was studied through static scale inhibition tests, and the effect on formation of CaCO₃ was investigated with combination of scanning electronic microscopy (SEM), X-ray powder diffraction (XRD) analysis and Fourier transform infrared spectrometer, respectively. The results showed that the low phosphonic copolymer was excellent calcium carbonate scale inhibitor in artificial cooling water. The crystallization of CaCO₃ in the absence of inhibitor was rhombohedral calcite crystal, whereas a mixture of calcite with vaterite crystals was found in the presence of the low phosphonic copolymer. For actions of carboxyl and phosphonic acid groups, the calcite was inhibited and the metastable vaterite was stabilized in the presence of the low phosphonic copolymer during the CaCO₃ formation process.     

共聚物阻垢分散剂中官能团对硫酸钙阻垢协同作用研究

以水为溶剂,过硫酸胺为引发剂,丙烯酸、异丙烯膦酸、丙烯酰胺为单体,分别合成了低分子量的丙烯酸／丙烯酰胺、异丙烯膦酸／丙烯酰胺二元共聚物,以及不同配比的丙烯酸／异丙烯膦酸／丙烯酰胺三元共聚物．用红外光谱对产物进行了表征。研究了在相同条件下,所舍相同基团的共聚物阻垢剂与复配型阻垢剂对硫酸钙的阻垢性能,以及不同组成的共聚物阻垢剂对硫酸钙的阻垢性能。用扫描电镜观察了共聚物阻垢剂与复配型阻垢剂对硫酸钙结晶形态的影响。结果表明,同一分子链上的基团间具有较好的阻垢协同效应,且基团组成不同,其阻垢协同效应也不同。     

鹰山石化水处理配方研究与应用

根据鹰山石油化工厂冷却水处理存在的问题,研制了一种代号为YS-2的复合水处理配方,该配方主要由HEDP,低磷聚合物,磺酸多聚物及Zn^2 组成,现场实际应用表明,该配方具有优异的缓蚀阻垢性能.     

Polymeric corrosion inhibitors for copper and brass pigments

Copper and brass pigments corrode in aqueous alkaline media with the absorption of oxygen that can be measured gasvolumetrically. These corrosion reactions can be inhibited by certain polymers; the metallic sparkle and the color of the pigments is preserved. The brass pigment is inhibited more effectively than the copper pigment. Some low‐molecular mass styrene–maleic acid (SMA) copolymers are efficient corrosion inhibitors; a low acid number is necessary but not sufficient for corrosion inhibition. At pH 8.5 there is a potential correlation between the acid number of the low‐molecular mass SMA and the oxygen volumes absorbed from brass pigment dispersions; oxygen volumes decrease with decreasing acid number. Furthermore, increasing copolymer addition effects an increase of corrosion inhibition. Polyacrylic acids, polyvinyl alcohols and high‐molecular mass SMA copolymers are ineffective. The most efficient group of polymers examined in this study are the styrene–acrylate copolymers because by addition of these the overall lowest volumes of oxygen were absorbed by the metal pigments. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 80: 475–483, 2001     

高效低膦复合水质处理剂的研究

以丙烯酸和马来酸酐共聚物、有机膦酸、缓蚀剂、添加剂等合成了水质处理剂。研究了各组分对阻垢性能的影响 ,确定了水质处理剂的配比 ,对其阻垢缓蚀性能进行了测定 ,阻垢率为85 % ,缓蚀率达98%以上。     

Protective properties of polyaniline and poly(aniline-co-o-anisidine) films electrosynthesized on brass

Polyaniline and poly(aniline-co-o-anisidine) films were deposited on brass (Cu40Zn). The synthesis processes of homo and copolymer film were carried out under cyclic voltammetric condition from 0.12 M aniline and 0.06 M aniline + 0.06 M o-anisidine containing 0.2 M sodium oxalate solutions. Homo and copolymer films were characterized by scanning electron microscopy (SEM). SEM images clearly show that one of the brass electrodes was covered with a black copolymer film of strongly adherent homogeneous characteristic while the other one with a porous dark green homo polymer one. The corrosion performances of coated and uncoated electrodes in 3.5% NaCl were evaluated with the help of AC impedance spectroscopy, anodic polarization plots and open circuit potential–time curves. The protective effect of homo and copolymer films formed on brass grew in parallel with extended exposure time. It was only observed with copolymer-coated electrode that changes in the charge transfer resistance of copolymer-coated electrode were related to strong adsorption of copolymer film on the brass surface which led to the formation of a protective oxide layer due to its catalytic behaviour.     

Adsorption and inhibitive properties of Apigenin derivatives as eco-friendly corrosion inhibitors for brass in nitric acid solution

Six apigenin derivatives were synthesized through Mannich reaction by using apigenin isolated from Hypericum perforatum as raw material. The inhibition performance of these apigenin derivatives were investigated as eco-friendly corrosion inhibitors for brass in 1.0 M HNO₃ solution by means of weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) measurements. The obtained results show that the as-synthesized apigenin derivatives act as efficient inhibitors for brass in 1.0 M HNO₃. The inhibition efficiency increased with the increase in inhibitor concentration but decreased with a rise in temperature. The inhibition efficiency higher than 90% for these compounds was found even at a low concentration of 30?mg L^?1, which is superior to the commonly used synthetic organic corrosion inhibitors for brass in acidic media. Electrochemical studies indicate that the inhibitors are of mixed type but predominantly cathodic in HNO₃ solution. The inhibitor performance depends on the adsorption of the molecules on the metal surface. The thermodynamic parameters for inhibiting process were calculated according to the statistical model. The calculated thermodynamic parameters revealed that the adsorption of these inhibitors on brass surface was spontaneous, controlled by physiochemical processes. The adsorption behaviour of these apigenin derivatives on the surface of brass was analyzed utilizing SEM, AFM, XPS, and Raman spectroscopy measurements. The results confirmed that the apigenin derivatives prevented corrosion of brass by forming protective layer on its surface.     

膦酰基羧酸共聚物阻垢分散剂的研究进展

介绍了近20年来膦酰基羧酸共聚物阻垢分散剂——大分子有机磷酸的研究现状和进展情况。重点罗列了以不饱和有机磷酸单体为原料制备膦酰基羧酸共聚物阻垢分散剂，在合成工艺和阻垢、分散及缓蚀性能评价等方面所取得的研究成果，并提出了膦酰基羧酸共聚物阻垢分散剂今后的主攻方向和发展趋势。     

异丙烯膦酸—丙烯酸共聚物的阻垢效果

本文以异丙烯膦酸和丙烯酸为单体，合成了异丙烯膦酸－丙烯酸共聚物，探讨了共聚物浓度，ｐＨ值，钙离子浓度及温度对共聚物阻垢性能的影响，探讨了共聚物对氧化铁分散能力的影响。结果表明，异丙烯膦酸－丙烯酸共聚物不仅具有优异的阻垢性能，而且对氧化铁具有较好的分散能力，是一种良好的水质稳定剂。     

土酸溶液中苯扎溴铵对黄铜的缓蚀作用及吸附热力学研究

用失重法研究了土酸溶液中苯扎溴铵对黄铜的缓蚀作用,发现苯扎溴铵在黄铜表面上的吸附是产生缓蚀作用的重要原因,且吸附规律服从Langmu ir吸附等温式。用Sek ine方法处理实验数据,获得了吸附过程ΔH0、ΔS0和ΔG0等重要热力学参数。