Study on modification agent for hypereutectic al - si alloy refinement 中间合金变质效果的促进作用
Effects of sh modification agent on the microstructures and properties of air cooling bainitic cast steel 复合变质对空冷贝氏体铸钢组织和性能的影响
Evaluating effects to parlygorskite organising modification by x - ray , tem , sem , ir , viscidity analysis etc . contrasting organising modification effects of parlygorskite original ore and acidified palygorskite , the result shows wd - 51 modification agent has better modification effect to acidified pargorskite than parlygorskite original ore 对比了用wd - 51对坡缕石原矿和酸化坡缕石进行有机化改性处理的改性效果,表明wd - 51对酸化坡缕石的改性效果要好。
The article is focused on the modification studies of chitosan ultrafiltrating compound membrane ( cs compound membrane ) on the basis of preceding researches . it includes adding cross - linking agent , modification agent , acylation agent in the casting membrane solution . the result shows that the new modification membrane are better in the phychemical properties and separation properties 本文是在前面研究的基础上,着重进行了聚氨基葡糖复合超滤膜(简称cs复合膜)的改性研究.通过从交联剂、改性剂、乙酰化试剂等方面的改性来寻求最佳的铸膜液配方.结果表明,改性后的膜能达到较好的物化性能和分离性能
The purity and composition uniformity were very high , and the specific surface area was 67 - 156 nm . in the third part , surface modification of sn - in2o3 nano particle was studied and some conclusions were drawn finally . kh560 and kh570 were selected as surface modification agents , and the concentration of them was 0 . 5 - 1 wt % , and ph value was controlled for 5 . 4 , and the best milled technology were 72 hours 本文第三部分,结合丙烯酸酷类单体,对sn一inz仇纳米微粒进行表面修饰研究,最后得出选用kh一560和kh一570作表面修饰剂,添加量为0 . 5一lwt %左右, ph值为5 . 4左右,采用球磨72小时,辅助超声分散工艺时, sn一in20 :纳米粉的分散性较好,且与基体有较好的相容性。