ratio surface meaning in English
比表面积
Examples
- The nanomaterials as catalysts have high ratio surface area and high surface energy , showing much higher catalytic activity than traditional catalysts
摘要纳米尺度的催化剂具有高的比表面积和表面能，其催化活性显著高于传统催化剂。 - Main research contents and achievements of this thesis is as follows : l . this paper carries through particular test and analysis to the basic physical - chemical properties of gaojiawang palygorskite , an environmental mineral fibre , by xay , ir , tem , sem etc . this paper has also discoursed upon the development appliance research status in quo and directions of palygorskite . 2 . according to the preceding surface modification research achievements to nonmetal mineral materials , the author combines the self characteristics of palygorskite such as the ratio of length and diameter , typical nano - rank particle diameter , big ratio surface area , well - developed crystal growth imperfection and lattice defect etc . the author also designs organising modification ortho - experimentation of palygorskite by adopting iso - propyl alcohol as thinner of wd - 51 and ndz - 401 , and acquires the best craft parameters and craft conditions for gaojiawang palygorskite original ore organising modification , namely : wd - 51 concentration 1 . 6 % ( wt % ) , modification temperature 120 ? , and modification time 60 mins ; ndz - 401 concentration 2 . 0 % ( wt % ) , c modification temperature 120 , modification time 80 mins
在前人对非金属矿物材料表面改性的基础上，结合环境矿物纤维?坡缕石自身的特点(如：长径比、典型的纳米粒径、大比表面积、发育的晶体生长缺陷和晶格缺陷等) ，通过对坡缕石有机化改性设计正交试验，采用( ch _ 3 ) _ 2choh作为稀释剂，获得了采用wd - 51和ndz - 401对高家洼坡缕石原矿进行有机化改性的最佳工艺参数和工艺条件，分别为： wd - 51的浓度为1 . 6 ( wt ) ，改性温度为120 ，改性时间为60min ； ndz - 401的浓度为2 . 0 ( wt ) ，改性温度为120 ，改性时间为80min 。