the microvoid activated carbon with large specific surface area was prepared from reed pulping black liquor through chemical activation with k2co3 as activator.
以芦苇制浆黑液木质素为原料,利用k2co3为活化剂通过化学活化制备出以微孔为主的大比表面积活性炭。
the results show a certain time thermal cycle can cause the fracture mechanism change. it varies from original pure shear fracture to microvoid coalescence fracture gradually.
we also found that the opacity was the symbol of the the formation of microvoid which advanced the shrinkage control effect of sample.
另外,试样的不透明度可以揭示收缩控制的效果,不透明的试样表明其中有微孔形成。
using acrylate as monomer, divinyl benzene as crosslinking agent, chloroform as microvoid agent, acrylate resin was synthesized by means of suspension polymerization. it had low crosslinking density.
by analysis of the features of microvoid machining of stainless steel and the main relative factors, this thesis sums up a simple and viable machining method.
the microscopic statistical analyses and the mechanical tests show that the rock microvoid and grains distribution are all fractal in nature, and can be expressed by their fractal dimensions.