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China Petroleum Processing & Petrochemical Technology 2018年第2期20卷 79-89页

作者： xiong sang Sun Jianlin College of Materials Engineering Nanjing Institute of TechnologyNanjing 211167 Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211167 School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083

The contact angle phenomena and wetting behavior of fatty acids,alcohols and ester used as additives in lubricants onto the rolled copper foil(RCF)surface were studied by the static sessile drop ***-empirical quantum-chemical method studies on the contact angle of these compounds onto surface using several structural parameters were carried *** refractivity as well as several structural parameters were adopted in the development of quantitative structure-property relationships(QSPR)using genetic function approximation(GFA)statistical analysis *** results show that quantum parameters are a better choice when predicting the contact angle and wettability of lubricants onto the RCF *** angle of the compounds serves as a function of their viscosity,interfacial tension,and physicochemical *** P,molecular refractivity,molecular flexibility,total molecular mass,solvent surface area,element count,total energy and dipole are the most sensitive ones among the major contributing ***,studies of lubricants on the RCF surfaces allow wetting theories to be tested down to the microcosmic scale,which can bring about new insight to predict wettability of lubricants onto RCF surface.

关键词： lubricants wetting contact angle modelling QSPR

Preparation,characterization,and tribological properties of silicananoparticle-reinforced B–N-co-doped reduced graphene oxide as a multifunctional additive for enhanced lubrication

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Friction 2021年第2期9卷 239-249页

作者： sang xiong Baosen ZHANG Shuai LUO Hao WU Zhen ZHANG College of Materials Science and Engineering Nanjing Institute of TechnologyNanjing 211167China Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing 211167China School of Materials Science and Engineering Shanghai UniversityShanghai 200000China

Microwave-synthesized SiO_(2)-reinforced B–N-co-doped reduced graphene oxide(SiO_(2)–B–N–GO)nanocomposites were characterized by X-ray photon spectroscopy(XPS),X-ray diffraction(XRD),infrared(IR)spectroscopy,and transmission electron microscopy/energy dispersive X-ray(TEM/EDX)*** tribological properties of the SiO2–B–N–GO prepared as anti-wear additives for enhanced lubrication were studied using a four-ball *** experiment results indicated that SiO_(2)–B–N–GO exhibits excellent load-carrying,anti-wear,and anti-friction properties in a base oil,especially at the optimal concentration of additives at 0.15 wt%.The wear scar diameter decreased from 0.70 to 0.37 mm and the coefficient of friction was reduced from 0.092 to 0.070,which reductions are attributed to the formation of B–N and graphene layer tribofilms of several tens of nanometers in thickness that prevented direct contact between metals.

关键词： SiO2-B-N-GO nanocomposites material characterization tribological properties

Effects of Corrosion Inhibitors on Lubrication Performance of Rolling Oil for Copper Foil

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China Petroleum Processing & Petrochemical Technology 2014年第2期16卷 71-78页

作者： xiong sang Sun Jianlin Zeng Yingfeng Xu Yang School of Materials Science and Engineering University of Science and Technology Beijing Research Institute of Petroleum Processing Sinopec Corp.

The 2,5-bis（ethyldisulfanyl）-l,3,4-thiadiazole （T561）, benzotriazole （BTA）,1-N, N-bis （2-ethylhexyl） aminomethyl-4-methyl-lh-benzotriazole （IRGAMET39） and I-IN, N-bis （2-ethylhexyl） aminomethyl] methyl benzotriazole （TT- LX） have been evaluated as corrosion inhibitors used in rolling oil for cold rolling of copper foil. The MRS-10A four-ball friction and wear tests have been carried out to compare their tribological properties, and the lubricating performance of rolling oils has been studied through rolling experiments. The oil sample containing IRGAMET 39 has the same PB value as that one containing T561, with the coefficient of friction increased by 35.6% and wear scar diameter decreased by 4%. The minimum rolling gauge has been studied after rolling lubrication, but the results show that inhibitors have no effect on it. Scanning electron microscopy （SEM） and energy dispersive spectrometry （EDS） analyses have indicated that the inhibitor is adsorbed on the copper surface to prevent copper from being corroded easily. In addition, the LEXT OLS4000 laser confocal microscopy has been used to observe the foil surface which shows that the streaks of foil surface are clear, the scratches are shallow and the surface failure is improved effectively.

关键词： copper foil corrosion inhibitor cold rolling surface topography lubrication

Study on Surface Adsorption and Inhibition Behavior of Corrosion Inhibitors Contained in Copper Foil Rolling Oil

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China Petroleum Processing & Petrochemical Technology 2015年第1期17卷 96-107页

作者： xiong sang Sun Jianlin Jiang Wei Xu Yang Zeng Yingfeng Xia Lei School of Materials Science and Engineering University of Science and Technology Beijing Research Institute of Petroleum Processing Sinopec Corp.

Adsorption and inhibition behavior of 2,5-bis(ethyldisulfanyl)-1,3,4-thiadiazole(DMTDA) and N-((6-methyl-1H-benzo[d][1,2,3]triazol-1-yl)methyl)-N-octyloctan-1-amine(EAMBA) as corrosion inhibitors contained in copper foil rolling oil have been investigated using gravimetric and electrochemical techniques. Meanwhile, scanning electron microscopy(SEM) and energy dispersive spectrometer(EDS) have been employed to observe the surface topography and analyze the components on copper foil. The results show that the rolling oil containing DMTDA and EAMBA can significantly decrease the dissolution rate and increase the inhibition efficiency of samples, especially in the case of best compounded rolling oil system. The SEM and EDS investigations also confirmed that the protection of the copper foil surface is achieved by strong adsorption of the molecules which can prevent copper from being corroded easily. Reactivity descriptors of the corrosion inhibitors have been calculated by the density functional theory(DFT) and the reactivity has been analyzed through the molecular orbital and Fukui indices. Active sites of inhibitor are mainly concentrated on the ring and the polar functional groups, and in the meanwhile, the distribution is helpful to form coordination and backbonding among molecules and then to form stable adsorption on the metal surface. And this work provides theoretical evidence for the selection of corrosion inhibitors contained in copper foil rolling oil.

关键词： copper foil surface corrosion inhibitor electrochemistry DFT reactivity adsorption

新型氮磷添加剂对铜箔轧制摩擦学性能与磨损行为的影响

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中国有色金属学报 2014年第9期24卷 2352-2359页

作者：熊桑孙建林北京科技大学材料科学与工程学院北京100083

采用四球摩擦磨损试验机分别考察新型磷系与含氮硼酸酯极压抗磨剂以不同质量分数复配后在铜箔轧制油中的摩擦学特征,利用扫描电子显微镜(SEM)观察磨斑表面形貌,利用能谱分析仪(EDS)分析磨斑表面附着物的组成,并通过冷轧实验研究铜箔轧... 详细信息

采用四球摩擦磨损试验机分别考察新型磷系与含氮硼酸酯极压抗磨剂以不同质量分数复配后在铜箔轧制油中的摩擦学特征,利用扫描电子显微镜(SEM)观察磨斑表面形貌,利用能谱分析仪(EDS)分析磨斑表面附着物的组成,并通过冷轧实验研究铜箔轧制摩擦磨损与润滑性能的关系。基于表征润滑性能的最大无卡咬负荷、摩擦因数和磨斑直径3个参数,提出了分析润滑剂摩擦学性能新指标——极压抗磨润滑系数?。结果表明:新型氮磷添加剂在金属表面发生摩擦化学反应形成摩擦化学产物是提高其抗磨减摩性能的根本原因。铜箔与轧辊之间的磨损机制有黏着、犁削和剥离等形式,其中黏着磨损起主导作用;?代替四球测试的结果能较好地解决轧制过程的摩擦磨损问题。

关键词：铜箔添加剂摩擦极压抗磨润滑系数黏着磨损

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铜轧制油中磷酸酯的吸附特性与润滑性能

中国有色金属学报 2018年第6期28卷 1168-1175页

作者：严旭东孙建林熊桑北京科技大学材料科学与工程学院北京100083

采用密度泛函理论(DFT)计算轧制油中二烷基二硫代磷酸酯(DDE)分子的反应活性,建立DDE-铜表面稳定吸附构型;利用四球摩擦磨损试验机和四辊轧机分别考察DDE对轧制油摩擦学性能和润滑性能的影响;并通过X射线光电子能谱(XPS)对磨损实验后铜... 详细信息

采用密度泛函理论(DFT)计算轧制油中二烷基二硫代磷酸酯(DDE)分子的反应活性,建立DDE-铜表面稳定吸附构型;利用四球摩擦磨损试验机和四辊轧机分别考察DDE对轧制油摩擦学性能和润滑性能的影响;并通过X射线光电子能谱(XPS)对磨损实验后铜表面产物进行分析。结果表明:DDE是一种具有优异极压性能及良好抗磨减摩性能的铜轧制油添加剂,在基础油中添加0.05%(质量分数)DDE使得轧制油油膜强度pB达到588 N,比基础油的提高66.57%,同时摩擦因数与磨斑直径明显降低。其吸附本质是在DDE与铜表面摩擦过程中发生化学反应形成S、O与Cu的化合物,计算的吸附能达到225.80 k J/mol,表明分子在Cu表面产生稳定的化学吸附。含0.05%DDE的轧制油在实际轧制过程中的最小可轧厚度为22μm。

关键词：铜轧制油吸附特性润滑性能吸附能

冷轧铜合金乳化液润滑模型及表面质量研究（英文）

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稀有金属材料与工程 2015年第8期44卷 1845-1850页

作者：刘娜娜孙建林朱作鑫夏垒熊桑北京科技大学北京100083

根据平均流量模型和微凸体模型建立了冷轧铜合金混合润滑状态的理论模型。计算了使用不同运动粘度的乳化油,不同初始油相浓度的乳化液和在不同压下率条件下,轧制变形区的油相浓度,流动压力和接触面积。由计算结果可知,在冷轧过程中为使... 详细信息

根据平均流量模型和微凸体模型建立了冷轧铜合金混合润滑状态的理论模型。计算了使用不同运动粘度的乳化油,不同初始油相浓度的乳化液和在不同压下率条件下,轧制变形区的油相浓度,流动压力和接触面积。由计算结果可知,在冷轧过程中为使乳化液起到好的润滑作用和冷却效果,乳化油的运动粘度选在40-50 mm2/s之间,乳化液的初始油相浓度选在在0.02-0.05之间,道次压下率选择在30%。为进一步验证模型,利用四球摩擦磨损试验检测了乳化液的最大无卡咬负荷,确定乳化油的运动粘度和乳化液的初始油相浓度;通过观察轧后铜合金表面形貌确定轧制道次压下率,通过实验研究发现,实验结果和计算结果一致,验证了模型的准确性。乳化液润滑模型为轧制过程中乳化油运动粘度、乳化液初始油相浓度和道次压下率的选择提供了参考依据。

关键词：乳化液润滑模型油相浓度铜合金表面质量

基于分子动力学理论制备含氮磷硼酸酯添加剂及其摩擦学性能

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中国有色金属学报 2015年第6期25卷 1721-1729页

作者：熊桑孙建林徐阳严旭东北京科技大学材料科学与工程学院北京100083

利用分子动力学(MD)理论设计合成了一种新型含氮磷硼酸酯极压抗磨添加剂NBPE,分别采用元素分析仪和红外光谱仪(FTIR)对分子结构进行表征。采用热重分析法(TG)和饱和蒸汽法分别考察化合物的热稳定性与水解稳定性;采用四球摩擦磨损试验机... 详细信息

利用分子动力学(MD)理论设计合成了一种新型含氮磷硼酸酯极压抗磨添加剂NBPE,分别采用元素分析仪和红外光谱仪(FTIR)对分子结构进行表征。采用热重分析法(TG)和饱和蒸汽法分别考察化合物的热稳定性与水解稳定性;采用四球摩擦磨损试验机考察NBPE的含量对润滑油摩擦学性能的影响;利用立式万能摩擦磨损试验机研究不同润滑条件下钢-铜摩擦副的摩擦磨损性能;利用扫描电子显微镜(SEM)观察试样表面磨痕形貌,利用能谱分析仪(EDS)分析磨斑表面附着物组成。结果表明:NBPE是一种具有良好热稳定性、水解稳定性和优异的极压、抗磨性的润滑油添加剂;添加剂在金属表面发生摩擦化学反应形成摩擦化学产物是提高其极压、抗磨性能的根本原因;当润滑油中NBPE的含量为0.15%(质量分数)时,润滑油具有最佳的极压、抗磨性能,其油膜强度提高了148%,磨斑直径降低了23.2%;在钢-铜摩擦过程中,摩擦因数和铜磨损率分别降低了59.4%和45.2%,获得光洁度较好的铜表面。

关键词：硼酸酯摩擦磨损钢-铜摩擦副分子动力学

尼莫地平对高血压脑出血患者脑血管动力学的影响

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中国医药指南 2011年第24期9卷 200-201页

作者：桑雄广元市第一人民医院川广元628017

目的观察尼莫地平对高血压脑出血患者的脑血管动力学参数的影响,探讨尼莫地平用于治疗高血压脑出血患者的作用机制以及临床疗效。方法将2009年12月至2011年2月广元市第一人民医院神经内科高血压脑出血患者80例平均分为尼莫地平治疗组(... 详细信息

目的观察尼莫地平对高血压脑出血患者的脑血管动力学参数的影响,探讨尼莫地平用于治疗高血压脑出血患者的作用机制以及临床疗效。方法将2009年12月至2011年2月广元市第一人民医院神经内科高血压脑出血患者80例平均分为尼莫地平治疗组(尼莫地平组)和常规治疗组(常规组),分别测量两组患者治疗前后的脑血流动力学指标并进行比较,最后进行疗效评定。结果在用药前后比较所有患者脑血管动力学参数均有不同程度的改善;患侧的外周阻力值和临界压力值治疗前后均较对侧有明显增高(均P0.05);尼莫地平组治疗后平均血流量值较常规组明显增高(均P<0.05);尼莫地平组治疗后外周阻力值和临界压力值较常规组治疗后明显降低(P<0.05)。尼莫地平组的好转率(82.5%,33/40)明显高于常规组(57.5%,23/40)(P<0.05)。结论尼莫地平早期应用于高血压脑出血的治疗有利于增加脑血流量,降低脑血管阻力,提高临床疗效。

关键词：脑出血脑血管动力学尼莫地平

电子压延铜箔轧制油的研制及其润滑性能的研究

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石油炼制与化工 2016年第11期47卷 102-107页

作者：徐阳孙建林严旭东熊桑北京科技大学材料科学与工程学院北京100083

以多种直链醇、酯和新型磷酸胺以及唑类缓蚀剂为主要添加剂研制新一代电子级铜箔轧制油CFCO。在实验室对该轧制油的摩擦学性能及抗腐蚀能力进行研究,并在工业轧机上进行冷轧润滑试验考察油品的润滑性能。结果表明:CFCO铜箔轧制油与国外... 详细信息

以多种直链醇、酯和新型磷酸胺以及唑类缓蚀剂为主要添加剂研制新一代电子级铜箔轧制油CFCO。在实验室对该轧制油的摩擦学性能及抗腐蚀能力进行研究,并在工业轧机上进行冷轧润滑试验考察油品的润滑性能。结果表明:CFCO铜箔轧制油与国外油品性能相当,具有优异的摩擦学性能,显著降低表面粗糙度,增大表面形貌的均匀性;同时具有良好的缓蚀防锈性能,有利于解决轧后板面氧化变色问题,提高产品表面质量。

关键词：压延铜箔轧制油摩擦磨损缓蚀