碳酸钙

tàn suān ɡài
  • calcium carbonate;limestone
碳酸钙碳酸钙
  1. 碳酸钙加热分解,生成氧化钙和二氧化碳。

    The thermal decomposition of calcium carbonate produces calcium oxide and carbon dioxide .

  2. 聚合物原位复合纳米碳酸钙增韧PP研究

    Study on PP Toughened by In-Situ Polymerized Nano Calcium Carbonate

  3. N,O-羧甲基壳聚糖体系中纳米碳酸钙的仿生合成

    Biomimetic Synthesis of CaCO_3 Nanoparticles in N , O-Carboxymethyl Chitosan Solution

  4. 溶液pH值对碳酸钙结垢的影响

    A experimental study of influence of pH on calcium carbonate crystallization fouling

  5. 水分和碳酸钙对土壤Cd形态的影响

    Effect of Water and Calcium Carbonate on the Cadmium Forms in Soil

  6. 活性轻质碳酸钙填充发泡PE力学性能研究

    Study on Foam PE filled with activated light caco_3

  7. IR分析显示包膜剂与碳酸钙间以离子键结合;

    IR analysis showed that coated agent had attached to calcium carbonate surface by ionic bond .

  8. 碳酸钙和氧化钙脱除煤气中H2S和COS的研究

    Removal of H_2S and COS in Coal-gas with CaCO_3 and CaO

  9. TEM照片显示改性的碳酸钙在环己烷中有更好的分散性能;

    The TEM photographs showed that the modified calcium carbonate had better disperse ability in cyclohexane .

  10. 纳米碳酸钙影响UF树脂性能的研究

    The effect of nanometer calcium carbonate on properties of UF resin

  11. 碳酸钙分解动力学TGA实验数据的新诠释

    A new annotation of TGA test data of CaCO_3 calcining reaction kinetics

  12. 用激光电离TOF质谱研究碳酸钙团簇

    Study on CaCO_3 Cluster by Laser Ionization TOF Mass Spectrometry

  13. PEP填充母料中碳酸钙的选择

    The Selection of Calcium Carbonate in PEP Filler Masterbatch

  14. 介绍了在VC悬浮聚合中添加碳酸钙填料和热稳定剂,合成可直接用于加工成型的PVC专用粉料的开发工作。

    By adding calcium carbonate filler and thermal stabilizer in the VC polymerization processing , PVC special-use resins ready for processing were synthesis .

  15. 用于RTV硅酮胶的纳米碳酸钙的研制

    Preparation and Application of Nano Calcium Carbonate for RTV Silicon Sealant

  16. 研究了丙烯酸烯丙基磺酸钠(AASAS)二元共聚水溶性固体阻垢剂的合成工艺及对碳酸钙的阻垢效果。

    Acrylic acid ( AA ) and sodium allyl-sulfonate ( SAS ) have been used to synthesize a solid scale inhibitor .

  17. 使用自行研制的毛细管动态流变仪,研究振动参数对聚丙烯(PP)与碳酸钙(CaCO3)在不同配比时混料流变行为的影响。

    Polypropylene filled with CaCO_3 in various amounts was extruded in self-made dynamic capillary rheometer and the effects of vibration parameters on rheological behaviors were studied .

  18. TG-DTA和FTIR分析结果显示,合成的样品为含PAS的碳酸钙复合物;

    Results of TG-DTA and FTIR show that all samples are composites consist of PAS and CaCO_3 crystallites ;

  19. 水化产物生长在碳酸钙颗粒表面,对C3S水化起晶核作用并改善了界面粘结。

    The hydrate products grow on the calcium carbonate particles . It acts as a nucleating effect for hydration of C_3S and improves the bond of interface .

  20. 结果:辅料中影响去氢骆驼蓬碱Td的主要因素为吐温-80和碳酸钙用量(P0.05);

    RESULTS : The amount of tween-80 and calcium carbonate ( P0.05 ) are the main factors that had influence on the Td .

  21. 碳酸钙对UPVC型材性能的影响

    Effect of CaCO_3 on the Properties of UPVC Profile

  22. 如当复合重质碳酸钙粉体填加5~10%时,PP复合材料的断裂伸长率比基体PP还要高,甚至出现拉不断现象,填加量达到20%时仍和基体持平。

    Such as when the filling ratio is 5 ~ 10 % , the fracture elongation percent of PP filled by composite GCC was greater than PP matrix .

  23. 在碳酸钙加填纸中AKD施胶的有效性和逆转性

    Efficiency and Reversion of Alkyl Ketene Dimer Sizing in Calcium Carbonate Filled Papers

  24. 小鼠股骨钙的含量低聚谷氨酸钙组极显著高于碳酸钙组(P0.01)。

    The calcium content of femoral bone of the oligomeric glutamate calcium group was significantly higher than that of calcium carbonate group ( P0.01 ) .

  25. 研究了不同表面处理剂改性木粉填充回收PP的力学性能、加工性能.采用扫描电镜观察了纳米碳酸钙包覆木粉的形态,并对其耐热性能进行了分析。

    Mechanical and processing properties of wood flour filed recycled PP with different surface modification agent were studied and the coating wood flour with nano-CaCO_3 were observed through SEM .

  26. 采用缓慢分解法和两步法的附晶生长法,在低温(0℃~70℃)下实验合成纯文石型碳酸钙矿物,以XRD和SEM技术对合成矿物的相组成和形貌进行了鉴定。

    Aragonite at 0 to 70 ℃ was synthesized by slow decomposition and two step overgrowth approaches . The phase compositions and morphology were detected by XRD and SEM techniques .

  27. 以氧化钙和CO2为主要原料,用超重力RPB反应器制备了立方型纳米碳酸钙粉末。

    Nanometer calcium carbonate powders prepared by the carbonation reaction in HG reactor through Ca ( OH ) _2 and CO_2 was studied .

  28. 同时纳米级碳酸钙改性PP的SALS图像变得弥散、模糊,PP球晶变得不完善,晶粒更小。

    Furthermore , the SALS images of nano-CaCO_3 modified PP became dispersive and fuzzy , the PP spherocrystal became defective and the PP crystallite became smaller .

  29. 碳酸钙和锌对五种基因型小麦生长、锌吸收及营养液中HCO3~-含量和pH的影响

    Effects of CaCO_3 and Zn on growth and Zn uptake of five winter wheat genotypes as well as HCO_3 ~ - concentration and pH in nutrient solution

  30. 土壤速效氮磷钾对腐殖质各组份都有影响,但对HA/FA比值影响最大的是碳酸钙和pH。

    The available N , P and K contents in soil affect the compositions of humus , and the calcium carbonate and pH of soil are the most important factors in affecting the ratio of HA and FA .