硫酸钙
- 名calcium sulfate
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对半水硫酸钙晶须水化产物进行了形貌的实时、非实时观测和XRD分析。
Both real-time and out-of-time observations and XRD analysis were carried out for the products from the hydration process of hemihydrated calcium sulfate whiskers .
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研究了加热法以及加聚丙烯酸(AA)-烯丙基磺酸钠(SAS)控制海水淡化生产中硫酸钙结垢。
This work studied on controlling calcium sulfate scale in the process of sea water desalination with thermal method and by adding acrylic acid ( AA ) - sodium allylsulfonate ( SAS ) copolymer .
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合成硫酸钙在填充PE中的应用研究
Application of Synthetic Calcium Sulphates in Filled PE Compounds
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界面改性剂及硫酸钙晶须对PP复合材料结晶性能的影响
Effects of Interface Modifier and CaSO_4 Whisker on the Crystallinity of PP Composite
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硫酸钙晶须对PP性能影响的研究
The study of the effect of caso_4 whisker on the properties of PP
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X射线荧光光谱法通过建立标准曲线后,可以准确而又快速地检测脱硫灰中亚硫酸钙及硫酸钙总的硫含量。
The XRF method based on standard curve could determine the total sulfur content in desulphurize slag accurately and rapidly .
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改性硫酸钙晶须产品采用活化指数、接触角、扫描电子显微镜、X射线衍射和红外光谱分析进行表征。
Modified calcium sulphate whiskers are characterized with active exponent , contact angle , SEM , X-ray diffraction and IR respectively .
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亚硫酸钙对C3A和C4AF凝结时间的影响
Influence of Calcium Sulfite upon the Setting-Time of C_3A and C_4AF
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使用光学显微镜分析了硫酸钙晶体形貌,使用XRD分析了复合粉体的组分,使用SEM分析了复合陶瓷降解前后的形貌。
The composite powders were studied by XRD and the morphologies of composites before and after degradation were studied by SEM .
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使Ca2+激活猪凝血酶原的实验条件得以确立。在Ca(OH)2碱性条件下亚硫酸钙对矿渣的激发作用研究
The experimental condition for Ca 2 + activating porcin prothrombin was established . Research of Calcium Sulfite on Activating Slag Hydration under the Calcium Hydrate Alkali Condition
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用X射线衍射法测定了无Al2O3但掺有二水硫酸钙的水泥石与CaO-Al2O3-SiO2系统的玻璃之间的界面效应。
The interfacial effect between CaO-Al_2O_3-SiO_2 glass and hardened cement paste mixed with gypsum but with no Al_2O_3 was studied .
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结论:含40%重量HA的α-半水硫酸钙可以满足临床操作的要求,作为一种可注射性骨替代材料是可行的。
Conclusion : Calcium sulphate combined with 40 wt % HA could act as an injectable bone graft material and may be an useful biomaterial with orthopaedic applications .
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以CaSO4·2H2O为原料,采用水热法合成了硫酸钙晶须;
Hydrothermal method was applied in the preparation of calcium sulfate whiskers in airtight reactor using CaSO_4 · 2H_2O as primary materials .
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实验结果表明:采用0.3%的亚硫酸钙处理5h后硬化效果较好;
The results showed that the hardening effect is better by treated with 0.3 % sodium sulfite for 5 h.
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用改性硫酸钙晶须对印染废水进行脱色处理,确认了最佳投放试剂的顺序以及温度、时间、pH值等条件对脱色效果的影响。
The effects of the optimal conditions , such as reagent input order , temp . , time and pH value , on the decolorization results when treating the dyeing wastewaters with modified calcium sulfate whiskers were confirmed .
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方法:以硫酸钙、PLGA为载体,用有机溶剂注模法制造多孔缓释材料并检测其药物稳定性、孔隙率、孔径等相关性能。
Methods : The porus delayed-released material was made by salt-leaching method , whose carrier was PLGA and calcium sulfate , and its properties was evaluated .
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该文利用实验装置,通过改变pH值、亚硫酸钙浓度、空气流量、温度等条件,研究了亚硫酸钙非催化氧化的宏观反应动力学,实验参数较接近实际工况条件。
By using experimental equipments , the macroscopical uncatalyzed oxidation kinetics of calcium sulfite was studied by varying the pH , concentration of calcium sulfite , flux of airflow and temperature . The experiment parameters were close to those in practical conditions .
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以电镜作为分析超细硫酸钙晶须直径的手段,得出制备超细硫酸钙晶须的最优工艺条件为:反应温度120℃、料浆初始pH值9.8~10.1、料浆浓度5%、原料粒度18.1μm。
The optimum conditions of preparation are as follows : temperature 120 ℃, pH value 9.8 ~ 10.1 , concentration 5 % , material size 18.1 μ m , which were determined by the analysis of the diameter of CaSO_4 whiskers through SEM .
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目的:评价硫酸钙(CSC)、磷酸钙(CPC)与聚甲基丙烯酸酯(PMMA)3种骨水泥用于椎体成形术的生物力学性能。
Objective : To evaluate the biomechanical characteristics of vertebroplasty using calcium sulfate cement ( CSC ), calcium phosphate cement ( CPC ) and polymethacrylate ( PMMA ) for thoracolumbar burst fractures .
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目的探讨使用骨移植替代物脱钙骨基质(DBM)和硫酸钙颗粒(OSTEOSET)治疗骨缺损的疗效。
Objective To evaluate the effect of decalcification bone matrix ( DBM ) and OSTEOSET in treating the bone defect .
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根据石灰石在CFB锅炉中的化学变化行为,对3种分别添加了石灰、硫酸钙以及石灰和硫酸钙不同配比混合物的煤灰进行了熔融性测定试验。
Three coal ash fusibility tests that added respectively lime , calcium sulfate and mixtures of lime and calcium sulfate were conducted on the basis of chemical reaction behavior of limestones in CFB boiler furnace .
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用高温合成法制备出硫酸钙复盐Na4Ca(SO4)3,利用差热分析、X射线衍射、扫描电子显微分析等现代测试仪器研究了该复盐的反应历程。
The calcium sulfate double salt Na_4Ca ( SO_4 ) _3 was prepared by high temperature synthesis method . The modern instruments such as XRD , TG-DTA and SEM etc. , were used to research the processing steps of the double salt .
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方法采用L(827)正交设计,用EDTA络合测定法测定硫酸钙的含量。
Methods Eight decoctions with gypsum were prepared and analysed by L8 ( 27 ) orthogonal design and the contents of calcium sulphate were determined by EDTA titration .
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运用扫描电镜(SEM)及X射线衍射(XRD)详细考察了反应工艺因素对硫酸钙晶须的形貌和相组成的影响,并对水热条件下硫酸钙晶须生长机理做了分析讨论;
The effects of reaction factors on the morphology and phase constitution of CSW were studied by Scanning Electron Micrograph ( SEM ) and X-ray diffraction ( XRD ) respectively in detail , moreover , the growth mechanism under hydrothermal conditions of CSW was analyzed .
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为了再生以次亚磷酸盐为还原剂的无电解镀老化液,把硫酸钙加入含有EP络合剂的已失效的镀液中,以亚磷酸钙从溶液中析出沉淀。
To regenerate spent electroless plating solutions which contain hypophosphite as the reducting agent , calcium sulfate is added to the spent solutions in the presence of EP complexing agent to precipitate it as calcium phosphite from the solutions .
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目的探讨外科级半水硫酸钙(SGCS)和富血小板血浆(PRP)复合物在种植前牙槽骨保存中应用的可行性。
Objective To evaluate the combination of surgical grade calcium sulfate hemihydrate ( SGCS ) and platelet-rich plasma ( PRP ) for alveolar ridge preservation prior to implant placement .
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研究结果表明:亚硫酸钙对C4AF有缓凝作用,而对C3A基本不具有缓凝作用;
The results showed that the CaSO_3 · 0.5H_2O had retarded setting action for C_4AF but not for C_3A .
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采用形态分离法,研究了硫酸钙、氧化钙、铝土矿三种固体吸附剂在煤燃烧过程中对痕量重金属元素Cd,Pb,Co,Cu和Ni释放的化学控制。
Three solid sorbents ( Calcium sulfate , Calcium oxide and bauxite ) were used to control the emission of heavy metals ( Cd , Pb , Co , Cu , Ni ) in coal combustion . The speciation extraction method was applied to study the chemical control .
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石膏基复合胶凝材料的水化产物主要为二水硫酸钙、水化硅酸钙凝胶和少量的钙矾石以及硬硅钙石(Ca6Si6O17(OH)2)。
The hydration products of the gypsum-based cementing composite include Calcium sulfate dehydrate , calcium silicate hydrate gel ( C-S-H ), smack ettringite ( AFt ) and Ca6Si6O17 ( OH ) 2 .
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本文报道了无保护气氛条件下碳还原硫酸钙方法合成适用于光转换农膜的CaS:Eu,Cl稀土无机发光材料。
The red luminescent material CaS : Eu , Cl applied to the light transition film for farm was prepared by reduction of calcium sulfate in carbon powder under no protective atmosphere ( N2 ) and reducing gas ( H2 or CS2 ) .