废乳化液的电混凝处理

对电混凝处理废乳化液的操作条件进行试验 ,结果为极板间距 8mm、电流密度 5mA/cm2 、时间 2 5min为最佳操作条件。处理后出水含COD 86 0mg/L、油 10 .36mg/L、NO-2 2 10mg/L ,pH值为 8.8,外观清澈透明。用此水配制乳化液并分析测定新配制乳化液的性能 ,符合相应标准要求 ,完全可以循环使用电混凝出水配制乳化液     

采用动态流变剪切方法评价改性乳化沥青高温性能的研究

为了对改性乳化沥青高温性能及影响因素进行更好地评价,选用直接加热蒸发法获取SBR及SBS改性乳化沥青残留物。在此基础上,进行多应力重复蠕变恢复试验,探讨温度、胶乳含量及胶乳种类3个因素对改性乳化沥青高温性能的影响。研究结果表明,随着温度的升高,SBR改性乳化沥青残留物高温抗变形能力变弱;随着胶乳含量的增加,SBR改性乳化沥青残留物高温抗变形能力变强;SBS改性乳化沥青高温性能优于SBR改性乳化沥青。     

渤中稠油乳状液的流变性实验研究

此项研究的目的在于揭示含水率、压力和温度等对稠油乳状液流变特性的影响.实验结果表明,油品乳状液的反相点大约在含水率70%左右,温度对乳状液黏度和流变性影响较为明显,压力对乳状液黏度和流变性影响不大.     

钢纤维增强聚合物混凝土在梯面大桥桥面铺装中的应用

钢纤维增强聚合物混凝土是由乳胶、钢纤维和混凝土复合而成的高性能混凝土材料 ,它具有比钢筋混凝土和钢纤维混凝土更为优良的抗拉、抗折、抗疲劳强度及冲击韧性。以梯面大桥桥面铺装为工程实例 ,介绍了钢纤维增强聚合物混凝土的工程应用及其试验使用情况     

乳化沥青稀浆封层技术在云南芒市公路段的应用

介绍了乳化沥青稀浆封层技术在工程中的实际应用，通过对工程中各种参数及结果的描述，让人对该技术有了个清楚的认识，具有借鉴意义。     

Auto-ignition and micro-explosion behaviors of droplet arrays of water-in-fuel emulsion

The characteristics of auto-ignition and micro-explosion behaviors of one-dimensional arrays of fuel droplets suspended in a chamber with high surrounding temperature were investigated experimentally with various droplet spacings, numbers of droplet and surrounding temperatures. The fuels used were pure n-decane and emulsified n-decane with varied water contents ranging from 10 to 30%. All experiments were performed under atmospheric conditions with high surrounding temperatures. An imaging technique using a high-speed camera was adopted to measure ignition delay, flame lifetime, and flame spread speed. The camera was also used to observe micro-explosion behaviors. As the droplet array spacing increased, the ignition delay also increased, regardless of water content. However, the lifetime of the droplet array decreased as the droplet spacing increased. The micro-explosion starting time remained unchanged regardless of the number of the droplets or the droplet spacing; however, it tended to be delayed slightly as the water percentage and droplet spacing increased.     

PREPARATION OF HOLLOW LATEX PARTICLES BY ALKALI-ACID TREATMENT

IntroductionPolymer blends by emulsion polymerizationhave appeared as extremely important materialsand increased attraction for both academic and in-dustrial researchers.These blends rang from com-pletely homogeneous ones to phase- separatedones.Morphological configuration of these poly-mers is a key factor in determining the physicalproperties of the materials[1] . It is important forpreparation of polymer latex particles to controlthe polymer latex particle morphology.Polymer latex particle…     

SBR改性乳化沥青对水泥砂浆性能的影响研究

研究不同聚灰比条件下SBR改性乳化沥青对水泥砂浆工作性能和力学性能的影响,试验结果表明在水泥砂浆中加入适量的SBR改性乳化沥青,能够使其工作性能和力学性能得到明显改善,脆性降低、柔性增大,当聚灰比在10%~15%时改性效果较好。     

乳化沥青在道路工程中的应用及优势

介绍乳化沥青的分类,它在道路建设及养护工程中的应用以及与普通热拌沥青相比的优势。     

考虑气液混合流体时变特性的阀片式液压互联悬架建模

针对液压互联悬架中气液混合流体对悬架系统特性的影响,推导了气液混合流体物理性质的时变特性模型,提出一种非线性形变修正函数,用以修正所建立的阻尼阀阀片变形等效模型,从而建立了一种考虑气液混合流体时变特性的阀片式单缸液压互联悬架非线性动力学模型,并通过台架试验加以验证。仿真结果表明:气液混合流体时变特性会导致液压互联悬架系统阻尼特性曲线出现明显的“迟滞”现象,并降低阻尼力的峰值,与试验结果对比显示,所提出的建模方法能准确描述“迟滞”现象,且与台架试验结果基本吻合。