The qualitative analysis of product was done by ir spectrum , the x - ray diffraction was used to investigating its preparation , and studied the effects of expanded graphite content on the mchanical properties of flowability and fracture surface of the composite 用红外光谱和x -射线衍射分析证实复合材料的合成，并讨论了石墨含量对复合材料的力学性能和导电性能的影响。
Analyze the flow activation and low - temperature jellification theories that well illustrate the low - temperature properties of environment friendly lubricants , then study and discuss in perspective of molecule the low - temperature flowability of environment friendly lubricants 分析了可以用于解释环境兼容润滑油低温性能的流动活化理论和低温成胶理论，从分子的角度分析讨论了环境兼容润滑油低温流变特性。
The result shows that blended cement mixed with activatory coal gangue powder has high compressive strength , however , with the increase of the admixture of coal gangue powder , flowability of blended cement paste become worse , and the setting time is not obviously affected 结果表明，掺入经活化处理的煤矸石粉配制的混合水泥具有较好的强度性能；随掺量增加，水泥浆体的流变性能变差，但对凝结时间并无明显影响。
Introduce the domestic and foreign standards and methods to evaluate low - temperature properties , synthesize plastic and flow principles of environment friendly lubricants and finally reach a ground that illustrates the low - temperature flowability of environment friendly lubricants 介绍了国内外评价低温性能的指标和技术方法，对润滑油的粘塑性流变机理进行了理论推导，从而找出解释环境兼容润滑油低温流变特性的根据。
The thesis introduces the general engine development , domestic and foreign , analyses the present situation and future development trend of environment friendly lubricants , studies on theories of flow activation and low - temperature jellification which well illustrate the low - temperature property of environment friendly lubricants , researches the low - temperature flowability of environment friendly lubricants in perspective of molecule , then theoretically synthesizes plastic and flow principles of environment friendly lubricants and finally reaches a ground to explain low - temperature properties of environment friendly lubricants 本文论述了国内外内燃机油的发展概况，分析了环境兼容润滑油的发展现状及趋势，研究了可以用于解释环境兼容润滑油低温性能的流动活化理论和低温成胶理论，从分子的角度研究了环境兼容润滑油低温流变特性，对润滑油的粘塑性流变机理进行了理论推导，找出了解释环境兼容润滑油低温流变特性的根据。
Abstract : based on composite testing of naphthalene superplasticizer and different retarders as well as retarding water reducer , in which the overall amount of admixture is certain , this paper analyzes the influence of these multicomponent admixtures on flowability of neat cement 、 retarding action and development of strength of colloidal mortar . the result shows that compatibilities of different components are different , and composition effects are also different 文摘:在总掺量一定的情况下，就萘磺酸盐高效减水剂与不同缓凝组分、缓凝型减水剂等复合后对水泥净浆流动度、缓凝作用、胶砂强度发展等性能的影响作用进行了试验分析，结果表明各不同组份复合的相容性不同，复合效应也存在差别。
The research is to develop a new material - - - - high performance concrete of hill sand on the basis of practice of high strength concrete of hill sand and knowledge of ultra - fine trass additive by using concrete material in guizhou and mixing fly ash . the research result shows that the flowability , moldability , cohesiveness of high performance concrete of hill sand are significant by comparison with ordinary concrete on mechanical properties , long term properties , and durability 本研究课题是在已成功研制并实际应用的c60高强山砂混凝土的基础上,结合对微细(超细)活性掺合料性质的理论认识,充分利用贵州当地的混凝土材料,并掺入微细(超细)活性掺合料,研制一种新型的高性能混凝土,即山砂高性能混凝土。
Abstract : recrystallized in multiple solvent consisting of ethanol , low - carbon alcohol and water , antioxidant1010 was refined , and the main factors of affecting crystalliza tion including solvent , water et . al . were studied in the laboratory , and individua l delta - form crystals of antioxidant1010 with good stability , fast drying speed , hi gh purity , heavy bulk density , good flowability , low volatility was obtained 文摘:在乙醇、低级醇a和水三元混合溶剂中，通过对抗氧剂1010粗品的重结晶精制研究，制备得到了纯度高、堆密度大、流动性好、挥发份低、质量稳定、干燥速度快的型抗氧剂1010 。
But some problems with self - compacting concrete such as high slump loss and the difficulty of harmonizing the cohesiveness and the flowability should be solved . the theory of concrete mix design should also be perfected . in accordance with these problems , this thesis carry out such research works as follows to deal with them 然而，免振捣混凝土特别是高强超高强免振捣混凝土坍落度损失大，粘聚性和流动性难以统一以及易产生收缩裂纹的问题亟待解决；免振捣混凝土的配比设计理论也需要进一步地加以完善。
The results indicate the even blended , clear suspensions owned a good stability and flowability , and can used as casting membrane solutions . both the stability of active carbon power suspensions and the integration properties of membrane being made from them were bad . coagulant bath temperature had a strong influence on pu , pes composite flat membrane 结果表明，经过充分分散的sio _ 2填充聚合物铸膜液，均匀透明，具有较好的稳定性和流动性，适于用作平板膜和中空纤维膜的原料液；而活性炭粉填充聚合物铸膜液稳定性较差，所得膜的综合性能也差于sio _ 2填充膜。
