YS-842催化剂在Hypol工艺PP中试装置上的应用

将Ziegler-Natta高效载体催化剂YS—842在Hypol工艺聚丙烯(PP)中试装置上进行应用考核，考察了该催化剂的适应性及共聚合性能。试验表明，YS—842催化剂活性高(达1．2Mg／g)、寿命长、氢调敏感性好：用YS—842催化剂生产的聚合物流动性好，粒径分布窄，细粉少，平均粒径为640μm；等规指数大于98．5％，堆密度大于0．45g／mL；试生产的F401、J340，其机械性能与使用进口催化剂生产的产品相当。     

氯化苯及其衍生产品的开发应用

介绍了氯化苯市场的发展趋势，应开辟氯苯新的利用途径，发展氯苯系列衍生产品及具有开发前途的几种衍生产品的用途和生产方法。     

低压合成甲醇用B119型高温变换催化剂

本文介绍了B119型高温变换催化剂的功能，并与国产某型及进口G-3型催化剂进行了实验室性能对比，其化学组成、结构及活性都与进口G-3型催化剂十分相似。该催化剂已在齐鲁石化公司第二化肥厂使用20余月，运行时的各项指标与进口G-3型催化剂相当。     

Electrochemical behaviour of copper/LDPE composites in the simulated uterine solution

Two metal/insulator composites, copper/low-density polyethylene (LDPE) microcomposites and copper/LDPE nanocomposites, were prepared in a uniform metal mass fraction. The corrosion characteristics of the two composites in the simulated uterine solution have been studied by cyclic voltammetry, potentiodynamic polarization measurement and electrochemical impedance spectroscopy. Results obtained during this study show that there are obvious differences on the corrosive rates and mechanisms between the two materials. The nanocomposites have stable corrosive reaction, hardly passivation, low corrosion rate and high transformation ratio of copper to soluble cupric ions compared with microcomposites, which indicate that the nanocomposites are perfect to be the novel material for intrauterine device. The corrosion behaviour of the microcomposites was controlled by both the processes of the pervasion of Cu²⁺ and the transfer of the charge, while that of the nanocomposites was only controlled by the transfer of the charge. This paper also compared the corrosion behaviours of the composites and bulk copper in the simulated uterine solution, there were more insoluble subproducts in the corrosion process of bulk copper than the composites. Further, the electrochemical method in this study is proved to be useful to characterize the corrosion behaviour of high electrical resistivity materials.     

用新的理念规划建设现代石化物流园区

论述石化物流园区的规划建设问题。提出用新的理念规划建设现代石化物流园区,发展绿色物流。绿色物流既包括企业的绿色物流活动,又包括对绿色物流活动的管理、规范和控制。     

Activated carbon fiber cloths as electrodes for high performance electric double layer capacitors

Activated carbon fiber cloth (ACFC) electrodes with high double layer capacitance and good rate capability were prepared from polyacrylonitrile (PAN) fabrics by optimizing the carbonization temperature prior to CO₂ activation. The carbonization temperature has a marked effect on both the pore structure and the electrochemical performances of the ACFCs. Moderate carbonization at 600 °C results in higher specific surface area and larger pore size, and hence higher capacitance and better rate capability. The specific capacitance of the ACFCs in 6 mol L⁻¹ KOH aqueous solution can be as high as 208 F g⁻¹. It remains 129 F g⁻¹ as the current density increases to 10 000 mA g⁻¹.     

聚丙烯在功能纤维领域中的发展

阐述了聚丙烯在功能纤维中的应用、功能纤维的分类及国内外功能性聚丙烯纤维的发展状况，具体介绍了几种典型的聚丙烯功能纤维，并对聚丙烯在功能纤维中的发展趋势进行了分析。     

纤维素科学与技术研究进展

本文综述纤维素科学与技术的研究进展。阐述了纤维素结构、纤维素的合成、纤维素液晶、功能纤维素、纤维素溶剂、纤维素裂解和纤维素的废物利用等的最新动态。     

废胶粉/聚丙烯热塑性弹性体的界面增容研究

采取多种相容剂和反应加工手段，设计轮胎胎面废胶粉（WRP）与聚丙烯（PP）体系的不同界面，旨在制备出性能优异的热塑性弹性体（TPE）。研究了纯WRP／纯PP、三元乙丙橡胶（EPDM）包覆WRP／纯PP、丁苯吡橡胶（BSPR）包覆WRP／接枝马来酸酐聚丙烯（MPP）／PP、特殊高分子相容剂（SMC）包覆WRP／纯PP、原位接枝胺基WRP／MPP／PP、动态接枝纯WRP／纯PP等六种体系制备的TPE的性能，WRP／树脂质量比为70／30。结果表明，采用后三种体系制备的TPE性能优良，已经接近天然橡胶／聚丙烯TPE的性能水准，但WRP必须用酚醛树脂进行改性。据此，提出强界面和合适的界面模量过渡是制备废胶粉／树脂热塑性弹性体的关键。TEM的相态研究表明：胶粉的分散粒径在几到十几个微米之间，较原始粒径有很大的细化。     

聚合物—铝酸—钙界面组成与结构的XPS研究

从复合材料界面的角度,采用XPS综合方法研究了水泥基聚合物复合材料的高强特别是高抗弯强度的微观机理。结果表明,在材料界面上存在明显的电子结合能化学位移效应,并被证实为聚合物与无机水泥的化学键合所致。界面层的深度分析发现,掺加聚合物的材料界面具有良好的化学和物理结构。作者认为这种材料的高强机理主要是由于两种基质界面间的有效化学键合作用,形成了良好的界面结构,因此,可认为这种作用大于有的学者所解释的聚合物的单一物理作用。