超细粉碎表面改性透辉石增强橡胶材料

采用硬脂酸、铝酸酯和硅烷偶联剂3种改性剂分别对超细透辉石粉体进行表面改性,通过接触角和活化指数评价表面改性效果,同时以硬度、扯断强度、扯断伸长率、定伸强度、扯断永久变形和抗老化性能为量化指标分析了改性透辉石粉体取代炭黑作为橡胶填料的力学性能。结果表明,硅烷偶联剂对超细透辉石粉体的改性效果好,并且对橡胶有较好的补强效果,这是因为活化改性增强了透辉石填料与聚合物基体的结合强度,因此能全部或部分代替炭黑等常规橡胶填料,从而降低橡胶生产成本。     

砂岩补偿中子-补偿密度响应与孔隙类型研究——以海拉尔盆地乌南凹陷下白垩统砂岩为例

为了提高含火山碎屑地区砂岩测井四性解释的准确性,采用测井刻度地质的方法,以密度孔隙度与中子孔隙度的差值XD-N表示补偿密度与补偿中子的交会关系,将两曲线的关系分为交会(XD-N>3)、接近(-3相似文献   

Architecture of volcanic sequence and its structural control of Yingcheng Formation in Songliao Basin

Yingcheng Formation is a set of volcanic strata composed of lava rocks,volcanic clastic rocks and sedimentary rocks,filled in some fault depressions in Songliao Basin,early Cretaceous.The study about litho-facies succession of Yingcheng Formation in the outcropped area of the southeast margin and in Xujiaweizi fault depression and its distribution based on analysis of seismic data,shows that the sequence of volcanic strata is quite different from the clastic sedimentary sequence.To study the architecture of volcanic sequence and its structural control of Yingcheng Formation in Songliao Basin,in this work,dividing of the volcanic sequence and dating of the sequence boundaries were finished firstly,then displacement and displacement rate of faults were calculated.The results show that,sample ages of top of the first member,the seconde member,and the third member are 127 Ma,115 Ma,110.7 Ma,respectively and sample age of the bottom of the third member is 114.7 Ma.The maximum displacement and displacement rate of the fault 1 are 3 km and 300 m/Ma,respectively,and those of the fault 2 are 3 km and 1000 m/Ma.Studies suggest that,the cooling unit of lava rock or pyroclastic rock is a basic genetic stratigraphic unit in volcanic sequence stratigraphy.Cooling units can construct a parasequence reflecting a volcanic eruption stage.A sequence was superimposed by some parasequences,responding to a volcanic active cycle.There are three types of volcanic sequences in Yingcheng Formation：type of explosion,type of effusion and type of mixed explosion-effusion.The surface of the volcanic sequence,an unconformity surface widely spread and traced in seismic profiles,is a base for analysis of volcanic sequence.The development of volcanic sequence was controlled by faulting,and the curves of fault displacement （rate） can reflect this control.The preservation of volcanic sequence was controlled by the type of volcanic structure and the regional subsidence,also different from that of the sedimentary.The type of volcanic structure of Xujiaweizi was a volcanic depression during the forming of Yingcheng Formation,and the breakdowns of volcanoes and structural subsidence were key factors in the volcanic sequences preservation.     

火山斜坡堆积及其相模式——以松辽盆地营城组为例

为了精细刻画盆地内火山斜坡堆积的岩相及其相结构,基于露头剖面和岩石样品观察分析的重要性,采用野外剖面地质研究和室内岩石样品成分、粒度组成分析相结合的方法,研究了松辽盆地东南缘露头区出露的营城组火山斜坡堆积相序与相结构.提出了包括热基浪、热碎屑流和空落3种亚相的火山斜坡爆发相单元结构.结果表明:爆发相由下到上为热基浪—热碎屑流—细空落亚相.其中热基浪亚相碎屑组成以刚性、炸裂状玻屑为主,粒度分析标准偏差0.93~1.26分选中等—好,偏度-1.85~3.46,显示牵引流粒度特征,发育层理构造;热碎屑流亚相碎屑组成主要是塑性—半塑性浮岩屑,少量炸裂状玻屑,粒度分析标准偏差0.87~1.65分选差,偏度-2.34~1.02,显示重力流粒度特征,顶部常发育浮岩屑层,浮岩屑变形程度与熔结程度呈近正相关,不发育层理构造;空落亚相,包括易识别的粗空落堆积和不易识别的细空落,刚性碎屑为主,分选好,常发育较好的水平层理,顶部常发育"火山豆".     

纳米技术在矿物材料中的应用

介绍了纳米矿物材料——聚合物／粘土纳米复合材料、无机介孔材料、纳米生物矿化材料、天然纳米矿物材料和工艺荧光陶瓷等。叙述了纳米技术在矿物材料中的应用。     

电子显微技术在矿物材料研究中的应用

电子显微技术为矿物深加工、矿物材料制备过程中表征微观结构及物化特性提供了先进测试手段与科学的分析方法。本文介绍了电子显微镜测试技术在超细矿物粉体颗粒观测、矿物粉体表面改性、橡胶塑料填料、结晶学、粘土矿物学以及微生物矿物加工新技术中的应用。     

底部架空建筑周围风环境模拟研究

利用PHOENICS软件对四栋底部架空建筑周围风环境进行了模拟,基于正交试验,分析了风环境特性,并通过现场测试进行了实验验证.论文主要得出以下结论:(1)建筑底部架空能改善以建筑为中心的小范围内风环境;(2)来流风速对水平平均风速影响最重要;(3)建筑布局直接影响水平平均风速,建筑周围风环境风环境设计,应优先考虑优化建筑布局.     

闽西南地区晚三叠-早侏罗世温湿-干热气候转变的沉积记录

本文对闽西南地区南靖油柑坪剖面文宾山组,漳平西园和漳平高明坑剖面梨山组粉砂质泥岩、凝灰质泥岩和泥岩样品进行了全岩分析和ICP-MS微量、稀土元素测试,综合元素含量及有关比值的变化,结合岩性、岩相和古生物特征,分析了闽西南地区晚三叠世文宾山组、早侏罗世梨山组沉积时的古气候特征.提出了闽西南地区晚三叠世以温湿气候为主,可能出现短暂炎热气候;早侏罗世以温湿气候为主,早侏罗世晚期气候较晚三叠世和早侏罗世气候要干燥炎热的观点.研究结果表明:闽西南地区南靖油柑坪剖面文宾山组、漳平西园剖面梨山组和漳平高明坑剖面梨山组Ca元素富集系数(0.16,0.44,0.25),AI2O3富集系数(1.35,1.11,1.30)、m值(2.02～2.71,2.24～11.38,2.86～4.46),Mg/Ca比值(0.35～2.39,0.23～3.57,0.55～0.80)在湖泊相和海相环境中均能敏感的反映古气候的变化;南靖油柑坪剖面文宾山组Sr/Cu(1.09～7.02),Fe/Mn(79～201.5),δCe(0.63～1.41)和δEu(0.69～0.90)值在湖泊环境中对古气候的反映敏感,岩石地球化学元素含量及其比值、组合的变化在一定程度上指示着古气候演化历程.     

电子显微技术在矿物材料研究中的应用

电子显微技术为矿物深加工、矿物材料制备过程中表征微观结构及物化特性提供了先进测试手段与科学的分析方法。本文介绍了电子显微镜测试技术在超细矿物粉体颗粒观测、矿物粉体表面改性、橡胶塑料填料、结晶学、粘土矿物学以及微生物矿物加工新技术中的应用。     

高岭土中Fe(Ⅲ)的微生物还原研究

加入葡萄糖和含Fe2O3高岭土的培养液在静止状态下恒温厌氧培养，生长的异养微生物能在氧化葡萄糖的同时，使溶解性弱的Fe^3 还原成溶解性强的Fe^2 ，达到去除高岭土中Fe^3 的目的。在室温(25℃)条件下对影响Fe^3 还原的因素进行了初步研究。