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Design and synthesis of Al-MOF/PPSU mixed matrix membrane with pollution resistance

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Chinese Journal of Chemical Engineering 2021年第1期34卷 110-120页

作者： Shujuan Xiao xiaowen Huo Shuxin fan Kui Zhao Shouwu Yu Xiaoyao Tan College of Material Science and Engineering North China University of Science and TechnologyTangshan 063210China School of Chemistry and Chemical Engineering Tiangong UniversityTianjin 300387China

To enhance the performance of the polyphenylene sulfone(PPSU) membrane,a novel mixed matrix membrane with hydrophilicity and antifouling properties was *** PPSU as the ba sic membrane material,polyvinyl pyrrolidone(PVP) as the porogen,N-Methyl pyrrolidone(NMP) as the solvent,and MOF-CAU-1(Al_(4)(OH)_(2)(OCH_(3))_4(H_2 N-BDC)_(3)·xH_(2) O) as the filler,PPSU/CAU-1 mixed matrix membrane(MMM) was prepared by an immersion precipitation and phase transformation *** changing the amount of MOF-CAU-1,the properties and performance of the MMM membrane were investigated in terms of hydrophilicity,pore morphology,surface roughness,and dye *** results show that the highest pure water flux of the mixed reached 47.9 L·m^(-2)·h^(-1), when the CAU-1 addition amount was 1.0 wt%, which was 23% higher than that of the pure PPSU *** the rejection rate and the antifouling performance of the MMM membrane also noticeably improved.

关键词： Mixed matrix membranes Antifouling Metal-organic frameworks Membrane separation technology

Fabrication of high-stability Ni-PSF@PAO40 microcapsules and their lubricating properties in polyamide 6

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Friction 2022年第12期10卷 1985-1999页

作者： Wenli ZHANG xiaowen QI Xiao YANG Yu DONG Bingli fan Lei LIANG School of Mechanical Engineering Yanshan UniversityQinhuangdao 066004China Key Laboratory of Self-Lubricating Spherical Plain Bearing technology of Hebei Province Yanshan UniversityQinhuangdao 066004China Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing Yanshan UniversityQinhuangdao 066004China School of Civil and Mechanical Engineering Curtin UniversityPerthWA 6845Australia Shanghai Research Institute of Synthetic Resins Co. Ltd.Shanghai 201702China

Novel Ni-PSF@PAO40 microcapsules(NPPMS)with high stability were prepared by using a combined processing method of electroless nickel plating and solvent *** results indicate that Ni is completely assembled on the surfaces of PSF/PAO40 microcapsules with the encapsulation capacity of NPPMS achieved at 50%.Organic solvents immersion shows that NPPMS have an excellent chemical *** thermal stability tests reveal that the softening temperature of NPPMS is increased up to over 400℃ while it becomes lower than 200℃ for PSF/PAO40 ***,NPPMS were embedded into polyamide 6(PA6)to prepare PA6/NPPMS *** cross-sectional morphology shows that NPPMS are intact in PA6 *** microhardness of PA6 is effectively improved with the incorporation of *** compared with neat PA6,the coefficient of friction(COF)for PA6/NPPMS composites with 10%NPPMS could be reduced by 87.7%(from 0.49 to 0.06)and the wear rate could be decreased by 96.8%(from 1.29×10^(-5) to 4.15×10^(-7) mm^(3)/(N·m)).Further studies confirmed that increasing test loads and test temperatures was beneficial to improve the lubrication performance of NPPMS despite the opposite trend occurred when increasing the sliding *** has been demonstrated that synergistic effects between PAO40 and Ni layer play an important role in improving the tribological properties of ***,NPPMS significantly improve the ability of microcapsules to resist a harsh environment,which has important scientific significance for expanding the use of microcapsules more practically in self-lubricating composites.

关键词： microcapsules electroless nickel high temperature resistant polyamide 6(PA6) friction and wear

基于SWOT分析的二胎妊娠期手术室护士知觉压力及应对方式调查

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中华现代护理杂志 2020年第12期26卷 1574-1580页

作者：蒋敏李育红尹红梅樊孝文刘宁单单单河南省人民医院手术部郑州450003 河南省人民医院教学培训科郑州450003

目的基于SWOT分析调查二胎妊娠期手术室护士知觉压力及个人应对方式现状并分析其影响因素,以期为降低二胎妊娠期手术室护士的压力提供建议。方法2019年1-8月采用知觉压力量表和简易应对方式量表对郑州市所有三级甲等综合医院的162名二... 详细信息

目的基于SWOT分析调查二胎妊娠期手术室护士知觉压力及个人应对方式现状并分析其影响因素,以期为降低二胎妊娠期手术室护士的压力提供建议。方法2019年1-8月采用知觉压力量表和简易应对方式量表对郑州市所有三级甲等综合医院的162名二胎妊娠期手术室护士进行调查,利用SWOT分析法评估其内部优、劣势和外部环境的机会、威胁,同时进行系统的总结分析,制订有效的应对策略。结果二胎妊娠期手术室护士知觉压力总得分为(27.43±7.74)分,其中压力紧张感得分为(13.01±5.10)分,压力失控感得分为(14.42±4.53)分;应对方式总得分为(32.30±6.98)分,其中积极应对得分为(21.91±5.55)分,消极应对得分为(10.40±3.90)分;知觉压力总分与应对方式总分呈负相关(r=-0.295,P<0.01);分层回归分析显示,应对方式能独立解释知觉压力总变异的31.6%(F=4.130,P<0.01)。结论二胎妊娠期手术室护士处于健康危险性的压力状态,面对压力时趋向于采取积极地应对方式。管理者应采取人性化管理,开展健康教育,关注心理健康,寻求家庭支持,积极引导等措施,降低二胎妊娠期手术室护士压力。

关键词：手术室护士 SWOT分析二胎妊娠知觉压力应对方式

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20G无缝钢管开裂原因

理化检验（物理分册） 2022年第12期58卷 47-50,76页

作者：杨文静薛俊鹏樊孝文温娟蔡双雨安工腐蚀检测实验室科技(无锡)有限公司无锡214028 首钢技术研究院北京100041 北京科技大学国家材料服役安全科学中心北京100083

某20G无缝钢管在服役一段时间后发生开裂,采用化学成分分析、硬度测试、金相检验、扫描电镜和能谱分析等方法分析其开裂原因。结果表明:该20G无缝钢管内表面发生严重脱碳,且脱碳原因与穿孔和连轧工艺有关。

关键词： 20G无缝钢管腐蚀脱碳开裂

胫后静脉置管近、远段联合溶栓治疗下肢深静脉血栓形成的研究

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中国医学工程 2018年第8期26卷 62-67页

作者：郑翼德樊孝文余永忠王吉旭卢勇徐韶飞湖南省郴州市第一人民医院血管外科湖南郴州423000

目的探讨胫后静脉置管近、远段联合溶栓治疗急性下肢深静脉血栓形成的临床应用价值。方法选取该院2013年1月‐2015年6月110例下肢深静脉血栓形成的患者,利用随机数字表法分为4组:A组23例经患肢足背浅静脉穿刺溶栓组;B组33例为经皮健侧... 详细信息

目的探讨胫后静脉置管近、远段联合溶栓治疗急性下肢深静脉血栓形成的临床应用价值。方法选取该院2013年1月‐2015年6月110例下肢深静脉血栓形成的患者,利用随机数字表法分为4组:A组23例经患肢足背浅静脉穿刺溶栓组;B组33例为经皮健侧股静脉穿刺逆行置管溶栓组;C组23例为胫后静脉切开顺行置管溶栓组;D组31例胫后静脉切开置管近、远段联合溶栓组。4组均用尿激酶泵入溶栓。统计并分析各组患者的患肢置管成功率、置管消耗时间、肿胀缓解度、深静脉通畅度评分、并发症发生率及下肢深静脉血栓形成后遗症(PTS)发生率的差异。结果 A、B、C、D4组置管成功率分别为A组:100.0%(23/23);B组:75.8%(25/33),C组:91.3%(21/23);D组:93.5%(29/31),D、C组与B组比较差异无统计学意义(P>0.05);置管消耗时间分别为(2.0±0.8)min、(47.6±8.4)min、(38.5±5.9) min、(39.2±4.8)min,D组与其他各组比较差异有统计学意义(P 0.05);PTS发生率分别为47.6%(10/21)、28.57%(6/21)、27.78%(5/18)、16%(4/25),D组与A组47.6%(10/21)差异有统计学意义(P 0.05)。结论经胫后静脉置管近、远端联合溶栓治疗急性下肢深静脉血栓不仅能够快速有效地溶解血栓,且操作相对简单、易行和安全,是值得推广的一种临床溶栓方法。

关键词：深静脉血栓形成导管接触性溶栓胫后静脉深静脉血栓形成后遗症

Preparation of Three-dimensional Graphene-based Sponge as Photo-thermal Conversion Material to Desalinate Seawater

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Chemical Research in Chinese Universities 2022年第6期38卷 1425-1434页

作者： ZHANG Huan LIU Huie CHEN Shuang ZHAO Xinxin YANG fan TIAN xiaowen College of Chemistry and Chemical Engineering China University of Petroleum(East China)Qingdao266580P.R.China

Water shortage has become one of the major threats to human society over the past *** new interfacial solar evaporation is undoubtedly an attracting technology to solve this ***,graphene aerogel(GA)and graphene oxide/melamine sponge composite material(GO-MS)were prepared through a two-step reduction and one-step freezing method as photo-thermal materials to evaporate pure water and *** proper concentrations of the graphene oxide(GO)dispersion for their preparation were investigated,which is 7 mg/mL for GA,and 5 mg/mL for *** evaporation rates of GA are 1.40 kg/(m^(2)·h)for pure water and 1.21 kg/(m^(2)·h)for seawater,while for GO-MS it is 1.63 kg/(m^(2)·h)for pure water and 1.45 kg/(m^(2)·h)for seawater,*** composite material not only reduces the usage of GO,but also shows better photo-thermal conversion ***,the heat loss of evaporation system was calculated and the method of further enhancing photo-thermal conversion efficiency was deduced,which will provide a strong basis for guiding the design and development of graphene based three-dimensional materials and further exploration in this field.

关键词： Graphene Melamine sponge Photo-thermal material Solar-driven evaporation Heat conduction

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南鄱阳坳陷烃源岩生烃潜力探讨

天然气勘探与开发 2008年第3期31卷 19-22页

作者：马向军张廷山范晓文叶舟张永贞中国石油集团测井有限公司西南石油大学资源与环境学院中国石油浙江油田公司

南鄱阳坳陷发育多套烃源岩,主要为上二叠统龙潭组暗色泥岩和煤、下二叠统茅口组泥灰岩以及栖霞组灰岩,结合煤中树皮体和镜质体的生烃模拟结果,探讨了研究区主要烃源岩的生烃能力。研究表明,区内煤中树皮体和镜质体都具很强生烃能力,且... 详细信息

南鄱阳坳陷发育多套烃源岩,主要为上二叠统龙潭组暗色泥岩和煤、下二叠统茅口组泥灰岩以及栖霞组灰岩,结合煤中树皮体和镜质体的生烃模拟结果,探讨了研究区主要烃源岩的生烃能力。研究表明,区内煤中树皮体和镜质体都具很强生烃能力,且树皮体的生油能力比镜质体强得多;茅口组及龙潭组泥质烃源岩的生烃强度,在坳陷西南部最大,而由北往东则呈降低之势,烃源岩厚度也以坳陷西南部较厚,表明坳陷西南部是有利的勘探区。

关键词：南鄱阳坳陷烃源岩树皮体镜质体生烃能力

Flexible metal–organic frameworks based self-lubricating composite

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Friction 2024年第8期12卷 1816-1827页

作者： Xiao YANG Yunbo WANG Weihua CAO Jinghan ZHENG Changxin LIU Bingli fan xiaowen QI School of Mechanical Engineering Yanshan UniversityQinhuangdao 066004China Key Laboratory of Self-Lubricating Spherical Plain Bearing Technology of Hebei Province Yanshan UniversityQinhuangdao 066004China Aviation Key Laboratory of Science and Technology on Generic Technology of Self-Lubricating Spherical Plain Bearing Yanshan UniversityQinhuangdao 066004China Department of Materials.Imperial College London London SW72AZUK

To expand the use of metal–organic frameworks(MOFs)based self-lubricating composite,flexible MOFs MIL-88D has been studied as a nanocontainer for loading *** this work,the mechanism of oleamine adsorption and desorption by MIL-88D was investigated through molecular simulations and *** simulations showed that the oleamines can be physically adsorbed into open MIL-88Ds with the Fe and O atoms of MIL-88D interacting with oleamine *** temperature can cause Ole@MIL-88D to release more oleamines,while higher pressure on Ole@MIL-88D caused less oleamines *** the Ole@MIL-88D was incorporated into epoxy resin(EP)for friction *** optimum mass ratio of MIL-88D to EP is 15 wt%,and the EP/Ole@MIL-88D prefers light load and high frequency *** work suggests that flexible MOFs can be used as a nanocontainer for loading lubricant,and can be used as a new self-lubricating composite.

关键词： self-lubricating composite metal–organic framework(MOFs) MIL-88D molecular dynamic(MD)simulation

4.1 Ga old detrital zircon in western Tibet of China

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Chinese Science Bulletin 2007年第1期52卷 23-26页

作者： DUO Ji WEN ChunQi GUO JianCi fan XiaoPing LI xiaowen Tibet Bureau of Geology and Mineral Exploration and Development Lhasa 850000 China Chengdu University of Technology Chengdu 610059 China

4.1 Ga old detrital zircon was found by SHRIMP U-Pb dating for quartz schist from Buring County in western Tibet, Southwest China. This is the oldest zircon U-Pb age found in China so far. The detrital zircon is a zircon of magmatic origin because its Th/ U ratios are 0.76 to 0.86. Two dates older than 4.0 Ga were measured only in one grain. U-Pb ages of 35 measured spots in 24 zircons can be subdivided into 6 groups, corresponding to at least 6 episodes of magmatic activity in the target area. The present results provide an important geochronological constraint on the geological evolution of Qinghai-Tibet Plateau.

关键词：锆石中国西藏地层