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对Lookout LabVIEW Bridge VIEW三种新的测控软件进行了分析比较,说明了他们各自的功能与特点。 相似文献
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高阻隔树脂乙烯—乙烯醇(EVOH)共聚物的研究 总被引:6,自引:0,他引:6
阐述了研制新型高阻隔包装材料EVOH树脂的迫切性,本课题研究了合成EVOH树脂的工艺和流程,并对EVOH树脂的醇解工艺进行了系统的研究,研究成功的EVOH树脂的主要技术性能指标,与日本可乐丽公司同类产品接近,在国内属领先水平。 相似文献
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EVA薄膜的主要性能及EVA—PE三层复合功能性宽幅棚膜 总被引:3,自引:0,他引:3
本文介绍了用北京有机化工厂提供的EVA树脂吹塑成型薄膜的试验结果,阐述了EVA吹塑薄膜的工艺性能及其力学、耐老化、保温、无滴性能和采用共挤出复合吹塑成型先进技术并添加各种功能助剂开发生产的EVA-PE三层复合功能性棚膜的主要性能及应用效果。 相似文献
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根据国外动态硫化技术的发地趋势,结合国内科研情况.对TPV推广应用的可能性进行了分析,并对今后的发展提出了建议。国内TPV的主要应用市场是轿车及电线电缆行业。顶计2000年,轿车行业对TPE的需求量达3250t/a。国内EPDM/PPTPV工厂成本不超过1.7万元/t.售价将远低于Santoprene。 相似文献
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对平衡硫化(EC)体系硫化天然橡胶(NR)的性能进行了研究,并与半有效硫化(SEV)体系和传统硫化(CV)体系硫化NR进行了对比。结果表明,EC体系返原作用略高于SEV体系,明显低于CV体系,硫化6h时的返原率依次为7.7%,0.4%和34.0%;与SEV和CV体系相比,EC体系NR硫化胶拉伸强度、撕裂强度和300%定伸应力高,生热低,耐磨性和耐屈挠性好。EC体系NR硫化胶的耐热氧老化性能优于SEV体系,更优于CV体系。 相似文献
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电石法生产EPVC(糊用聚氯乙烯)在我国仍占很大比重,如何降低EPVC生产成本是厂家面临的共同课题,沈化通过对生产实施工艺改进和深化管理,取得了明显效果。本文主要介绍了降低EPVC成本的措施。 相似文献
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An experimental module for senior-level reaction engineering/reactor design students is described. The module is used to characterize the kinetics of dye (food coloring) neutralization by household bleach, and the reactor system is configurable for use in either batch reactor or continuous-stirred tank reactor (CSTR) modes. The reactor temperature, volume, reactant feed rates, and reactant concentrations may be adjusted to enable students to obtain a wide range of kinetic data. Dye concentrations in the reactor are monitored by absorbance spectroscopy, and the kinetic rate law is determined directly from the batch reactor performance data. Students use the completed kinetic rate law to compare experimental steady-state CSTR performance data to the mathematical models derived from reactor design equations. Finally, the students use the kinetic behavior of the system to design a hypothetical plug-flow reactor for the same chemical reaction and a set of stated operational goals. 相似文献
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Hydroformylation of 1-dodecene was studied in a biphasic system using water-soluble rhodium complex [RhCl(CO)(TPPTS)2] as catalyst in the presence of cetyl trimethyl ammonium bromide as surfactant to enhance the reaction rate. Efforts were devoted to improve the performance of hydroformylation by exploring reactor the reaction configuration which enhanced the mixing, dispersion and interphase mass transfer. Experiments were carried out in a 0.5L autoclave at the total pressure of 1.1MPa and temperature from 363K to 373K. Several surface aeration configurations were tested, and higher hydroformylation rate with higher normal/branched aldehyde ratio produced were achieved. The experience suggest that improved reactor configuration by taking reaction engineering, measures is beneficial to better process economy in alkene hydroformylation. 相似文献
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对EGSB反应器异常运行状态时COD、挥发酸、氧化还原电位(ORP)、碱度、pH值进行了测试与分析。结果表明,ORP对EGSB反应器的异常运行反应敏感,由于ORP可方便地实现在线监测,可作为实际工程中厌氧反应过程是否正常运行的指示参数。 相似文献