乳液的转相

乳液的转相对了解乳液的类型、稳定性、乳液的制备和分离具有重要的意义。本文阐述了两相乳液体系的转相现象、影响转相的因素及转相的应用。     

测井资料岩性-沉积微相解释研究

沉积微相的特征可以从测井曲线响应上的形态变化反映出来,能够将测井信息转化为对应的地质信息,所以利用岩芯资料结合测井曲线救成了精确划分沉积微相的有效手段。     

浅谈泥浆固相含量对钻井的影响及控制

钻井是油气田勘探开发的重要手段.当前钻井工程中占主导地位的钻井方法仍然是旋转钻进、泥浆循环排屑法.在钻井过程中,泥浆性能的好坏,使用和处理是否得当,直接关系着钻井钻速、钻头寿命、泥浆泵磨损、泥浆费用以及整个钻井的综合成本.钻井固相即指泥浆中所含的固体成分,其体积或质量百分比即钻井液固相含量.泥浆固相控制就是要清除泥浆中的有害固相,保存有用固相.现代泥浆固相控制作为现代钻井的重要手段,直接影响着安全、优质、快速钻井和油气层的保护,因此对泥浆固相控制的研究对钻井技术的发展具有十分重要的意义.本文对泥浆固相含量对钻井的影响进行了分析,进而提出控制方法.     

临盘油田大芦家沙二下段沉积微相研究

为改善临盘油田大芦家断块沙二下目前开发效果较差的现状,利用组合测井资料和地震相标志,结合测井相分析,从纵向和横向上展布沉积微相,最终为测井二次解释提供依据。     

乌里雅斯太212区块腾一下Ⅲ砂组沉积相研究

本文利用测井曲线,参考录井及岩心资料对区块主要目的层腾一下Ⅲ砂组的沉积相特征进行系统研究。     

液晶及其进展

<正> 液晶是在1888年由奥地利植物学家F.Reinitzer最初发现。当他加热安息香酸酯的时候发现在143.5℃经历一个不透明的混浊液体阶段,到了178.5℃才变成为透明的液体。通常非液晶物质在一定压力下随着温度的上升由固相→液相→气相,而且对于单一的物质相变点均有确定的温度。但对于液晶来说,在固相和液相变化之间存在一特殊的混浊状态即液晶态。在第二年的1889年,德国科学家Leh-mann用偏光显微镜观察该混浊状态的物质,发现它显示双折射性质。双折射表现在入射到物体内的光会分成两个方向,这种现     

长岭地区深层火山岩的识别

随着松南气田的发现,松辽盆地长岭地区火山岩气藏取得了巨大的突破,寻找深层火山岩,刻画火山岩成为长岭地区寻找深层油气主要手段,经过研究得出该地区营城组上部火山岩主要为溢流相和爆发相在波形分类平面上主要表现为波形杂乱的地震相特点,碎屑岩主要表现为波形相对稳定的地震相特点。     

长岭地区深层火山岩的识别

随着松南气田的发现,松辽盆地长岭地区火山岩气藏取得了巨大的突破,寻找深层火山岩,刻画火山岩成为长岭地区寻找深层油气主要手段,经过研究得出该地区营城组上部火山岩主要为溢流相和爆发相在波形分类平面上主要表现为波形杂乱的地震相特点,碎屑岩主要表现为波形相对稳定的地震相特点.     

2-乙基己基磷酸单脂萃取分离钴镍镁试验研究

对Ｐ５０７（２－乙基己基磷酸单脂）萃取分离钴镍镁进行试验研究和Ｐ５０７分离钴镍镁效果很好。钴的直接收率达８１％,回收率达９９％,而且萃取过程无污染,其效果优于使用Ｐ２０４和氟化铵。     

纳米二氧化钛制备方法的研究进展

纳米二氧化钛作为一种重要的纳米材料，在陶瓷材料、催化剂载体等领域有着广泛的应用。简单介绍了纳米二氧化钛特性，综述了纳米二氧化钛的制备方法的特点和研究进展，包括气相反应法、液相反应法、固相反应法3大类，着重论述了目前应用比较广泛的液相法（又可以细分为水解法、沉淀法、溶胶-凝胶法等方法）。并在此基础上分析了目前纳米二氧化钛制备方法在中国的发展现状、特点及不足。同时指出今后纳米二氧化钛制备方法发展的方向是提高对粒度控制能力及做好对团聚体的分散及控制。另外，纯度控制，化学成分，微观结构的均匀性控制，稳定性控制也是急需解决的问题。     

两相厌氧工艺在废水中的应用

两相厌氧工艺因产酸相和产甲烷相的分离而具有一系列的特点。在此对两相厌氧系统进行了分析,阐述了它的理论依据和运行机理,剖析了两相厌氧工艺的影响因素、工艺特点,并对其发展和实际应用现状进行了论述。表明此工艺的先进性和适用性。     

Study on the phase behavior of ethylene–vinyl acetate copolymer and poly(methyl methacrylate) blends by in situ polymerization

This study examines the phase behavior of ethylene–vinyl acetate copolymer (EVA) and poly(methyl methacrylate) (PMMA) blends during MMA polymerization. The ternary PMMA/MMA/EVA mixtures are considered to create a triangular phase diagram, which responds the phase changes during polymerization. The phase changes during MMA polymerization are also examined by optical microscope and photometer. Since the PMMA and EVA are well‐known immiscibles, the polymer solution undergoes phase separation at the initial stage of the MMA polymerization. Additionally, the phase inversion occurs as the conversion of MMA between 13.8 and 20.8%. On the other hand, the EVA‐graft‐PMMA, which can reduce the dispersed EVA particle size, is induced efficiently by taking tert‐butyl peroctoate (t‐BO) as initiator during MMA polymerization. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 1001–1008, 2003     

Influence of the coagulation‐bath temperature on the phase‐separation process of poly(vinylidene fluoride)‐graft‐poly(N‐isopropylacrylamide) solutions and membrane structures

A poly(vinylidene fluoride)‐graft‐poly(N‐isopropylacrylamide) (PVDF‐g‐PNIPAAm) copolymer was synthesized, and flat‐sheet membranes were prepared via the phase‐inversion method with N,N‐dimethylformamide (DMF) as the solvent and water as the coagulation bath. The effects of the coagulation‐bath temperature on poly(vinylidene fluoride) (PVDF)/DMF/water and PVDF‐g‐PNIPAAm/DMF/water ternary systems were studied with phase diagrams. The results showed that the phase‐separation process could be due to the hydrophilicity/hydrophobicity of poly(N‐isopropylacrylamide) at low temperatures, and the phase‐separation process was attributed to crystallization at high temperatures. The structures and properties of the membranes prepared at different coagulation‐bath temperatures were researched with scanning electron microscopy, porosity measurements, and flux measurements of pure water. The PVDF‐g‐PNIPAAm membranes, prepared at different temperatures, formed fingerlike pores and showed higher water flux and porosity than PVDF membranes. In particular, a membrane prepared at 30°C had the largest fingerlike pores and greatest porosity. The water flux of a membrane prepared in a 25°C coagulation bath showed a sharp increase with the temperature increasing to about 30°C. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010     

Preparation of a porous structure in a poly(4‐methyl‐1‐pentene)/diphenyl ether system with a thermally induced phase‐separation method

Poly(4‐methyl‐1‐pentene) was used to prepare porous structures by a thermally induced phase‐separation method. Different porous structures were obtained with poly(4‐methyl‐1‐pentene), which has excellent properties as a polymer, and diphenyl ether as a diluent. The affecting factors, including the polymer concentration and cooling temperature, are discussed. Scanning electron microscopy images and porosity values were obtained to investigate the affecting factors. According to the cloud‐point temperature and crystallization temperature, a phase diagram was also obtained to explain the phase‐separation process. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009     

相变微胶囊在聚丙烯纤维中的应用

介绍了相变调温聚丙烯纤维的生产工艺,重点研究了相变材料的加入量对相变调温聚丙烯纤维可纺性及其调温性能的影响。通过DSC测试对纤维的热性能进行了研究,并对相变调温纤维的应用前景进行了展望。     

乳化炸药组分含量及种类对其性能的影响

结合生产实践，对比分析了水相组分含量，油相、乳化剂和敏化剂的种类对乳化炸药性能的影响，总结出几点经验，为提高乳化炸药稳定性和爆炸性能提供一定的依据。     

纳米二氧化钛光催化剂制备方法研究进展

纳米二氧化钛作为一种新型的高性能材料,已受到了国内外研究人员的关注,并广泛应用于催化剂、半导体、传感材料、电子陶瓷等领域。主要介绍了近年来国内外纳米二氧化钛制备工艺的研究状况,根据反应体系的物理形态将制备工艺分成气相法、液相法、固相法分别进行阐述,在此基础上分析比较了不同制备工艺的优缺点,并对其发展前景进行了展望。     

新型抗水氯氧镁水泥的研究

研究了新型抗水氯氧镁水泥的水化产物、显微结构和主要性能。XRD,DTA,SEM和EDAX分析表明,其主要水化产物5·1·8在不同条件下有4种形态,且Ca,P和S元素固溶量不同。未反应MgO微粒均匀分散在5·1·8凝胶内是其结构的主要特征,不稳定的针杆状5·1·8晶体只在孔洞内少量形成。从显微结构的观点分析了其抗水机理。