Reaction kinetics study of asymmetric polymer-polymer interface

In this study, the reaction kinetics of asymmetric polymer-polymer interface was experimentally and theoretically studied. A new rheological method correlating the change of rheological property of reactive system with the conversion of the in situ formed copolymers was applied to study the reaction kinetics of PBT/epoxy reactive system. Then, the new method was proved to be useful by comparing its results with that obtained from the conventional endgroup determination method. Moreover, the conversion of PBT/epoxy reactive system from rheological method could be well fitted by the numerical analysis, from which the kinetic constant and the diffusion constant of epoxy in PBT could be determined simultaneously.     

全自动液压压砖机CAD/CAE信息集成系统数据库的研究与开发

对全自动液压压砖机CAD CAE信息集成系统中的工程数据库的设计和实施进行了研究 ,分析了系统对数据信息的需求 ,提出了该系统数据库的E -R数据模型以及表的定义和结构关系 ,实现了压砖机CAD CAE信息集成系统。     

Oxidative stability of soybean oil fatty acid methyl esters by oil stability index (OSI)

Biodiesel, an alternative diesel fuel derived from transesterification of vegetable oils or animal fats, is composed of saturated and unsaturated long-chain FA alkyl esters. During long-term storage, oxidation caused by contact with air (autoxidation) presents a legitimate concern with respect to monitoring and maintaining fuel quality. Extensive oxidative degradation may compromise quality by adversely affecting kinematic viscosity, acid value, or PV. This work examines the oil stability index (OSI) as a parameter for monitoring the oxidative stability of soybean oil FAME (SME). SME samples from five separate sources and with varying storage and handling histories were analyzed for OSI at 60°C using an oxidative stability instrument. Results showed that OSI may be used to measure relative oxidative stability of SME samples as well as to differentiate between samples from different producers. Although addition of α-tocopherol or TBHQ increased OSI, responses to these antioxidants varied with respect to SME sample. Variations in response to added antioxidant were attributed to aging and other effects that may have caused oxidative degradation in samples prior to acquisition for this study. Results showed that OSI was more sensitive than iodine value in detecting the effects of oxidative degradation in its early stages when monitoring SME during storage.     

陶瓷纳米粉体的分散与表征

总结了复合材料制备过程中纳米颗粒的分散方法，对其机理进行探讨，总结了纳米粒径及复合材料的表征方法，并展望了纳米复合材料的发展前景。     

聚3-羟基丁酸酯-聚乙二醇共混改性微球的制备

以聚3-羟基丁酸酯(PHB)和聚乙二醇(PEG)共混物为原料,采用复乳化-溶剂蒸发技术制备微球.通过FTIR、DSC和SEM等手段研究了在微球基材中引入PEG对最终微球组成、结构以及表面形貌的影响.结果表明,通过该工艺可以在微球的基材中引入PEG,从而降低PHB结晶相的规整度;随着PEG/PHB质量比变化,微球结构和表面形貌差别明显,最优质量比为14时,微球的得率达到36.1%,微球表面呈多孔状态,内部为微球嵌套结构,预期可以达到较好的控释效果.     

文化富思特——富思特制漆(北京)有限公司董事长郭祥恩解读企业文化真谛

几次作为听众,聆听了富思特制漆(北京)有限公司董事长郭祥恩关于“推动精细化管理,打造精英化团队”的精彩演讲;在富思特成立十周年之际,又不经意间拜读了《富思特2005时代的音符》——一本耐人寻味的小册子。无论是郭总慷慨激昂的演讲,还是充满哲理的字里行间,无不透露着一股浓浓的文化氛围。而对于作为富思特公司决策者的郭祥恩,更能感觉到他是一位充满智慧与激情的文化引领者。论及企业文化,人们并不陌生,大至实力强大的世界级顶尖公司,小至名不见经传的小企业,都会有自己的企业文化,有自己的文化架构。但把文化作为一种信念、一种价值观…     

探讨未来发展战略 引领行业健康发展——“首届中国涂料行业高层论坛”在博鳌隆重召开

2006年11月30日,在富有南国风情的海南博鳌,各方人士及业届精英齐聚一堂,迎来了中国涂料行业的盛会——首届中国涂料行业高层论坛。这是中国涂料行业的盛事,它标志着中国发展史上一个战略转型期的到来。此次论坛由中国涂料工业协会和中华制漆(深圳)有限公司联合主办。特邀原化工部副部长、中国石油和化学工业协会名誉会长谭竹洲,海南省副省长姜斯宪,全国政协常委徐展堂先生,海南省政协副主席洪寿祥,中国涂料工业协会理事长王擢到会并致辞。中国涂料工业协会常务副理事长杨桓、副秘书长黄添源、专家委员会主任刘登良也出席了会议,有来自国内…     

Porous TiC Ceramics Derived from Wood Template

A porous TiC ceramic with a woodlike structure was prepared from wood template through tetrabutyl titanate vacuum-infiltration. The tetrabutyl titanate was first decomposed to TiO₂, and then in-situ reaction between TiO₂ and carbon template took place in the cellular wall at high sintering temperature. The original structure of wood was retained. In addition, the dimensional shrinkage of the pores after the removal of the residual carbon was different according to the difference of the wood density.     

转笼式悬浮填料生物反应器启动性能试验

为了研究转茏式悬浮填料生物反应器的启动性能，简化其启动工艺，进行了常温和变温时的反应器的自然挂膜启动实验。实验结果表明，转笼式悬浮填料生物反应器构造的特定微环境有利于自然挂膜，启动比传统生物转盘快10d以上：经过启动参数优化，在水流量为2m^3／h，曝气量为3．6m^3／h、转笼转速为1．5r／min时，启动效果较好。     

湿法制造热塑性片材的工艺技术研究Ⅰ.热塑性片材概论

本文介绍了玻璃纤维毡增强热塑性片材（GMT）的特点，分类及制造工艺；阐述了湿法即介质悬浮法制造热塑性片材的工艺流程及专用设备。