改进材料阻隔性能的方法

介绍目前正广泛使用和正进一步研制中的几种改进材料阻隔性能的方法，并比较了几种常且阻隔性材料的改进方法和应用范围。     

有源电力滤波器的几种谐波软测量方法

对并联型有源电力滤波器的几种软测量方法进行了分析,谐波检测方法研究集中在瞬时无功功率理论和单位功率因数法上,并且指出了这几种方法的优、缺点,对电流平均值法提出了相应的改进方法并采用仿真软件Matlab进行了仿真。     

Φ2500×27000自身返碱蒸汽煅烧炉能力改进探讨

对Φ2 500自身返碱蒸汽煅烧炉生产能力改进方法进行了对比,探讨了几种改进方法在工业上的可行性。     

浅议煤气发生炉夹套锅底的改造

论述了中氮行业ＵＧＩ和Ｊ２８型煤气发生炉夹套锅底的几种改进情况，以及各改进方法的利弊。并介绍了该厂夹套锅底的改进措施。     

涂料企业的质量控制

阐述了涂料企业的质量控制、质量改进的技术与方法，并介绍几种常用方法的应用。     

故障模式及影响分析在石化行业中的应用

本文首先对质量管理中的可靠性分析方法故障及影响分析法在石化行业中的应用进行了回顾:故障及影响分析法主要在石化行业中的系统安全分析、设备维修管理、安全评价技术、风险分析方法等方面发挥重要作用。其次,介绍了模糊FMEA法、多准则决策法、数据包络法、功能展开FMEA法、BFA-FMEA法等几种常见的故障模式及影响分析改进方法及其应用。最后对这几种改进方法及其应用进行了分析并对其发展进行了讨论和展望。     

肉桂酸工业化合成方法的研究探讨

介绍了肉桂酸的合成方法及改进，并对几种合成方法进行了分析。     

SAPO-11分子筛的水热合成及其金属负载改性的研究进展

简述了SAPO-11分子筛的结构和合成原理,介绍了传统水热合成方法。通过几种方法对其进行改进,比较了改进前后分子筛的结构和性能。同时归纳和总结了金属负载改性对SAPO-11分子筛应用于烷烃异构化性能的影响。     

硼酚醛树脂的合成及应用研究进展

综述了硼改性酚醛树脂的研究进展,讨论了几种合成方法的特点、效果和作用机理。硼酚醛树脂比普通酚醛树脂具有更为优良的耐热性、瞬时耐高温性能和力学性能,这些性能的改善提高了酚醛树脂的应用价值,扩大了其使用范围。还介绍了几种硼酚醛树脂改进的新工艺。     

急性灭鼠剂—鼠立死的合成

本文介绍了鼠立死的性质，应用及合成方法。探讨了影响产品收率和质量的几种因素，对现有合成方法进行了改进。     

Extruder screws with barrier sections

This paper presents a functional analysis of the advantages and disadvantages of several types of barrier section extruder screws, indicating preferred geometrical configurations for certain applications. In addition, aspects of barrier mixing sections are discussed and analytical expressions for optimizing channel depth and helix angle to minimize the pressure drop over the barrier mixing section are presented.     

Stage and point efficiencies in barrier separation processes

The Murphree type stage and point efficiencies for any rate governed barrier separation process have been critically examined. Standart's plate efficiency definition and the concept of the rate of enriching mass transfer through the barrier have been utilised to propose new definitions of stage and point efficiencies in barrier separation processes with single entry separating elements. Expressions have been derived for the proposed point efficiency for various nonidealities encountered in some common barrier separation processes. An analytical relation between the proposed stage and point efficiencies has been developed for an ideal cross flow stage in a close separation barrier separation process. The procedure for estimating the proposed stage efficiency has been indicated also for a cross flow stage when the flux expressions through an ideal and a real barrier are known.     

State of the Art and Trends in the Development of Base Plate Materials for Aluminum Electrolysis Cells

The state of the art and trends in the production and application of barrier materials intended for preventing the infiltration of corrosive components (sodium, sodium fluoride, and molten aluminum) into the heat-insulating layer of refractories for the base plate of aluminum electrolysis cells are discussed. Results for different types of barrier materials tested for cryolitic stability are given; the granular composition and pore structure of some of them are studied. Strengths and weaknesses of the barrier materials are discussed.__________Translated from Novye Ogneupory, No. 2, pp. 16 – 22, February, 2005.     

云母粉改性高密度聚乙烯的汽油阻隔性

以片状云母粉为阻隔改性剂,与高密度聚乙烯(PE–HD)熔融共混,以改善其对汽油的阻隔性,考察云母粉形貌、含量等因素对PE–HD/云母粉复合材料阻隔性、熔体流动性以及力学性能的影响。结果表明,云母粉可显著提高复合材料对汽油的阻隔性,但熔体流动速率(MFR)与断裂伸长率降幅明显,高径厚比的云母粉对复合材料的汽油阻隔性提升更为显著,但径厚比过大不利于阻隔性的进一步提升,并会导致材料MFR和断裂伸长率进一步下降;当云母粉含量开始增加时,复合材料的汽油阻隔性明显提升,拉伸强度与缺口冲击强度上升,而MFR和断裂伸长率下降,当裂纹发展方向垂直于云母片面积方向时,缺口冲击强度提高更为显著;随着云母粉含量继续增加,复合材料的汽油阻隔性趋于稳定,拉伸强度与缺口冲击强度却明显下降。当径厚比为180的云母粉质量分数为30%时,复合材料具有最佳的综合性能,其汽油浸泡后的拉伸强度保持率显著高于纯PE–HD。     

陶瓷基复合材料用环境障涂层专利分析研究

本文以环境障涂层专利数据为基础,从趋势、技术、地域、申请人四个维度研究分析了环境障涂层技术的发展过程和现状。分析结果表明：在发展趋势方面环境障涂层正处于较为活跃的研究发展阶段,并且随着陶瓷基复合材料的应用还将具有较为广阔的研究发展空间;在技术构成方面陶瓷涂层材料、制备工艺和应用领域是环境障涂层最主要的研究领域,并且从2014年开始环境障涂层逐渐成为国内外研究的热点;在地域分布方面环境障涂层技术的技术主导国是中国和美国,国外在材料、结构、工艺、应用等多个领域均有专利申请和布局,并且对于环境障涂层在航空发动机的应用更为关注,而中国目前主要集中于陶瓷涂层材料等基础研究领域;在申请人方面,国外申请人主要集中在GE、R-R等主流航空发动机公司,而国内主要集中在高校和研究院所,对环境障涂层技术持续研究和创新缺乏合理的规划,同时申请专利的质量还有待进一步提升。     

ZERO THICKNESS DIFFUSION BARRIERS AND METALLIZATION LINERS FOR NANOSCALE DEVICE APPLICATIONS

A robust diffusion barrier and metallization liner technology are critical for the realization of a functional and reliable interconnect structure. While copper barrier materials and processes have evolved significantly since the onset of copper-based metallization, the extendibility of existing barrier/liner solutions for use in emerging nanoscale interconnect structures faces a number of significant challenges related to the continued scaling of IC feature sizes. A key element in addressing these challenges includes developing an understanding of the mechanisms that lead to barrier failure and subsequent interconnect reliability deficiencies, and identifying how such mechanisms differ in the nanoscale regime from their counterparts at the microscale regime. In this respect, it is important that these distinctions serve as baseline in establishing the factors that determine the relevance and applicability of potential barrier solutions. Furthermore, it is critical to understand how these factors have evolved as barrier layers scaled to thicknesses of a few atoms. Accordingly, the current report outlines short- and long-term trends for these technologies.     

Factors affecting the moisture barrier of vinylidene chloride-vinyl chloride copolymer films

Copolymers of vinylidene chloride, SARAN* resins, can be fabricated into films which have excellent barrier to mass transport. They are useful for making packages which must keep oxygen out or prevent moisture from entering or leaving. The oxygen barrier properties of SARAN films have been recently published (8). The purpose of this paper is to describe the moisture barrier properties of SARAN films as functions of temperature, humidity, and film composition. This information will aid packaging engineers design better barrier packaging.     

阻透性包装技术进展

综述了国内外阻怀包装市场、阻透性树脂性能、阻生新材料开发、阻透性薄膜和容器所用树脂加工技术和发展动向,重点介绍了多层复合膜和ＰＥＴ瓶技术的最新进展。     

PE／PA层化阻透瓶的微观结构和渗透性能

讨论了阻透专用料中聚酰胺和相容剂含量对PE/PA层化阻透瓶微观结构和渗透性能的影响 ,结果表明 ,这两种成分对阻透瓶瓶壁的结构有显著影响 ,进而成为影响其渗透性能的关键因素。当聚酰胺含量为C ,相容剂含量为M 3时 ,可以获得良好的阻透性能。在要求长期阻透性能的场合 ,采用高聚酰胺含量 (>10 % )可以提高阻透瓶的耐渗透稳定性。     

Development of new refractory materials exhibiting increased barrier properties

OOO Kontakt together with Bogdanovich OAO Ogneupory has created for the first time in Russia compact barrier chamotte articles with high barrier properties. These refractories operate successfully in electrolyzers with a current strength of 300 kA. The quality indices of articles are not surpassed by overseas barrier refractories and they are half the price of imported refractories. __________ Translated from Novye Ogneupory, No. 10, pp. 33–35, October 2007.