It includes the actuality of the use of transparent paper and semitransparent paper and the mecha- nism of the paper's transparence.
简单介绍了透明纸和半透明纸的应用现状和纸张透明机理,从浆料、填料、造纸助剂以及其他少量成分、浸渍物、造纸工艺几方面探讨了影响纸张透明度的因
A novel organic silicate inhibitor BTM-1 ot semi-permeable membrane property was presented and its inhibition to shale hydration and dispersion as well as its semi-permeable membrane property were evaluated based on tests of cuttings recovery rate, shale hydration tendency, mud boulders soaking and membrane efficiency measurement.
介绍了一种新型的有机硅酸盐半透膜抑制剂BTM-1。
CaCl2 and Na2CO3 solutions are separated by the use of semi-permeable membrane,vaterite and calcite are prepared.
利用半透膜将CaCl2溶液和Na2CO3溶液分开,制备了球霰石型和方解石型CaCO3,分别利用傅立叶变换红外吸收光谱(FTIR)、X-射线衍射(XRD)、扫描电镜(SEM)等测试手段进行了表征。
Prediction of properties of charged semipermeable membranes using density functional theory;
用密度泛函理论预测带电半透膜性质
And the key is to take advantage of the physical and chemical properties of shale or mud to enable the shale or mud to form a semipermeable membrane or form a high quality partition membrane on the wall of the well, so as to prevent the mud from flowing into the formation to effectively stabilize the wall of the well and protect the reservoir.
水基钻井液成膜技术是当今研究的热点,其核心技术是利用页岩或钻井液的物理、化学特性,使页岩或钻井液具有半透膜的性能或在井壁上形成一层较高质量的隔离膜,阻止钻井液向地层的进一步滤失,从而有效地稳定井壁和保护油气层。
The osmosis phenomenon was studied with different semipermeable membranes such as nanofiltration membrane and reverseosmosis membrane.
用纳滤、反渗透膜等不同的半透膜进行渗透实验 ,试验了溶质种类、浓度、渗透压、搅拌混合等的影响 ,结果表明纳滤膜等新型的半透膜具有良好的渗透性能和较好的应用前途 。