先进的转子设计：四棱N型转子

转子的结构形式,对胶料的混炼效果和产量有着重大的影响。切线型转子有两棱、四棱和六棱等多种结构形式,本文对行业使用较为广泛的各种四棱转子进行结构对比分析,再通过各种实验数据,最终得出结论：四棱N型转子具有炼胶效果好和产量高等优点,在保证了分散混炼性能的同时,提高了分布混炼能力,不仅适用于终炼,在母炼方面也有优越的表现。     

新型混炼挤出一体机转子的探讨

针对青岛科技大学混炼工程室研发的新型混炼挤出一体机设计出了3对转子，并对这3对转子的构型和流动情况进行了一定探讨，对比了这3种转子混炼能力和排胶能力技术性能。     

啮合型连续混炼机转子混炼特性的研究

介绍了几种混炼元件的混炼特点。在建立啮合连续混炼机转子的三维非牛顿等温流场模型的基础上,利用ANSYS软件对转子流场进行数值模拟,并对流场特点进行了分析。讨论了操作条件对转子混炼性能的影响。     

FARREL BANBURY密炼机新转子技术--凸棱功能技术

介绍和讨论了间歇式密炼机BANBURY系列新一代转子——凸棱功能技术(WFT)转子的设计和工作特性。本设计创立了一种独特的转子，通过设计转子凸棱构型来实现每一转子凸棱的工艺功能，使一个或多个转子凸棱或促进广泛分布混炼或促进分散混炼。每一转子凸棱的角位及螺旋长度的设计都要保证转子凸棱始终出现在2转子交叉范围内。再综合转子等速比和转子定向技术，使新转子能有效地改善混炼性能，提高密炼机生产率。     

密炼机啮合型转子安装及间隙的分析

简单介绍了啮合型密炼机混炼机理和啮合型转子结构。介绍了啮合型转子的装配过程,以及转子和混炼室、上顶栓、下顶栓间隙对混炼胶的作用。着重介绍了转子端面和耐磨板之间的端面间隙、转子和转子间隙在安装过程中如何调节保证最小间隙。并简单介绍了密炼机装配间隙调节的发展趋势。     

混炼挤出一体机密炼转子三维流场模拟

建立新型二棱同步转子和功能二棱同步转子密炼机物理、数学和有限元模型,对密炼机流场进行有限元模拟.分析结果表明,功能二棱同步转子的混炼性能优于新型二棱同步转子.     

六棱转子密炼机

通过不同胶种和混炼参数的对比试验，发现具有6棱VCMT结构转子的密炼机，不但混炼时间短，生产能力大大提高，而且混炼胶品质高，门尼粘度降低，炭黑的分散时间减少。     

六棱VCMT同步转子理论及实验研究

详细阐述了六棱VCMT同步转子的结构特点、混炼机理,并通过实验讨论了六棱VCMT同步转子对炭黑分散性及胶料力学性能的影响.结果表明,六棱VCMT同步转子因其独特的结构特征、混炼机理,其混炼胶的性能较其他转子有着明显的提高.     

剪切啮合型转子的混炼性能研究

介绍剪切啮合型转子的特点,并与四棱同步转子和普通啮合型转子进行不同填充因数、压砣压力、冷却水温度和转子转速下的对比试验.结果表明,混炼过程中密炼机存在最佳填充因数;相同的转子转速(低于150 r·min-1)和压砣压力下,剪切啮合型转子混炼性能较好;相同冷却水温度下,剪切啮合型转子炭黑分散性较好.     

新型二棱同步转子和功能二棱同步转子三维流场模拟

建立了新型二棱同步转子和功能二棱同步转子密炼机物理、数学和有限元模型,对密炼机流场进行有限元模拟。分析结果表明,功能二棱同步转子的混炼性能优于新型二棱同步转子。     

乙苯,苯乙烯的生产及合成乙苯,苯乙烯催化剂的研究进展

苯乙烯是重要的石油化工原料。本文介绍了国内外苯乙烯生产的发展概况，合成乙苯，苯乙烯所用的催化剂种类，并就苯乙烯生产及催化剂的发展趋势提出了自己的观点。     

Synthesis and characterization of homopolymers and copolymers of various acrylates and acrylonitrile

Various homopolymers and copolymers of methyl acrylate, ethyl acrylate, butyl acrylate, and acrylonitrile in different feed ratios were synthesized. These were characterized by IR, ¹³C-NMR, DSC, DTA, and TGA. Spectroscopic characterization helped in differentiating copolymers of different mol ratios. Thermal analysis revealed different degradation patterns for homopolymers and copolymers. The temperature and energy changes associated with various phase transitions were dependent on the chemical composition of homo- and copolymers, as expected. © 1993 John Wiley & Sons, Inc.     

生物质气化及生物质与煤共气化技术的研发与应用

总结了生物质原料的特点及生物质单独气化的缺点;介绍了国内外生物质气化技术及生物质与煤共气化技术的研发与应用现状;分析了在此领域国内外的发展趋势与前景;概括了开展生物质与煤共气化技术研发的意义。     

Electronic structures and reactivities of monometallic and bimetallic clusters of Au and Cu

The variation of the Au 4f binding energy of Au clusters with the cluster size has been established by measuring the binding energies of clusters whose size distributions were independently determined by HREM and STM. The binding energy increases significantly when the cluster size is less than 2 nm. Au-Cu bimetallic clusters of the composition Cu₃Au have been deposited for the first time on carbon substrates. The shifts in the core level binding energies of the bimetallic clusters show the effect of alloying in the case of large clusters, but show effects of both alloying and cluster size in the case of the small clusters. The interaction of CO with Cu₃Au clusters is stronger than with a bulk Cu metal. The interaction of CO with small Cu clusters also seems to be stronger than with bulk Cu or with large Cu clusters.     

钾盐资源及钾肥供需情况分析及预测

阐述了国内外钾盐资源及钾肥生产现状,对国内外钾盐的供需形势进行了分析及预测,从资源、原材料、国际市场三方面提出了解决我国钾盐短缺的措施。     

Comparison of the Adhesion and Cohesion of Triblock and Random Copolymers of Styrene and Butadiene

A substantially greater detachment energy is required to strip a polyethylene tereph-thalate (Mylar) film from a styrene-butadiene-styrene (SBS) triblock copolymer compared to that for peeling from a random styrene-butadiene (SBR) copolymer. This is true even though the intrinsic interaction between the Mylar and each elastomer is expected to be similar because of their virtually identical chemical composition. It is proposed that this difference in peel strength (between the SBS and SBR) is a consequence of the much higher dissipative capacity of the former elastomer. Another manifestation of this is the higher cohesive tear strength of the SBS compared to the SBR. Extents of energy dissipation within each elastomer during detachment of the Mylar adherend are consistent with the hypothesis that the average maximum stress experience before detachment is some similar fraction of each elastomer's tensile strength.     

责任和责任心的涵义与结构

责任是人应主动承担的角色义务和对其因过失所造成后果应承担的责罚.有两层涵义:一是义务;二是后果.责任心是个体自觉做好分内事务和履行道德义务的心理倾向,是个性心理品质成分中自我特征维度上的重要内容.责任心具有两个方面的涵义:一是角色分内职责;二是角色道德义务.责任心是一种通过责任认知、责任个性和责任适应的动态形式表现出来的静态品质,责任心是责任心过程结构与责任心关系结构相互制约、相互影响的统一体.     

二甲基二烯丙基氯化铵和丙烯酰胺的合成及应用

用复合引发体系(过硫酸盐-偶氮类引发剂)和脂肪胺类氧化还原体系引发,在实验室获得了单体转化率≥98%,特性粘数高于13.6 dL/g的阳离子共聚物PDA,探讨了控制聚合物分子量的影响因素.     

甘油锌和光稳定剂NBC、BZ的光稳定作用测试与评价

对用甘油锌作光稳定剂的光稳定作用进行了测试，并与光稳定剂NBC，BZ进行了比较。研究了甘油锌，NBC和BZ与双酚A的复配效果。研究结果表明，甘油锌是一种性能优良的光稳定剂。     

Wetting properties of homopolymers and copolymers of pentafluorostyrene and methylacrylate and homopolymer blends

Polypentafluorostyrene (PPFS), polymethylacrylate (PMA), and poly(pentafluorostyrene-co-methylacrylate), poly(PFS-co-MA) were prepared and the wetting characteristics of polymer blends of PPFS and PMA were compared with that of poly(PFS-co-MA) via contact angle measurements. The critical surface tension of polypentafluorostyrene was found to be 22.6 dyne/cm, which is comparable to the value reported for polytrifluoroethylene (22 dyne/cm). The critical surface tension of poly(PFS-co-MA) is not linearly related to its composition. The polymer blends of PPFS and PMA exhibit significant surface enrichment of the fluoropolymer. The harmonic-mean method¹ was employed to determine surface tensions of these polymers and many known polymers. It is found that the method produces useful surface tension data provided the contact angle values are derived from testing liquids of dissimilar polarity.