摘要
探讨了纳米碳酸钙的合成机理及其室内制备方法,评价了纳米碳酸钙产品制备的主要影响因素和表面活性剂A对纳米碳酸钙表面改性程度的影响,确定了合成纳米碳酸钙的最佳工艺和最佳的改性条件。改性过程中改性剂的用量越多,改性效果越好,直至全部改性。在相同晶型和粒度分布条件下,纳米碳酸钙的活化度越高,其亲油值越大。
The synthetic mechanism and preparation method of nanoscale calcium carbonate are researched,and the main affecting factors of synthesis and surface modified degree of surfactant A are evaluated,based on that the best preparation conditions and technology are developed.The experimental results show that more modified agent,better modified effect is obtained,and with the same crystal form and particle size distribution,higher activation grade of nanoscale calcium carbonate,lower the HLB value is.
出处
《钻井液与完井液》
CAS
北大核心
2013年第4期1-4,共4页
Drilling Fluid & Completion Fluid
基金
国家重大专项'低渗油气田高效开发钻井技术'课题四'低渗油气田储层保护技术'(2011ZX05022-004)中的部分内容
关键词
疏水改性纳米碳酸钙
表面改性
表面活性剂
影响因素
自解堵疏水暂堵技术
Hydrophobicnanoscale calcium carbonate
Surface modification
Surfactant
Affecting factor
Self-blockremoving hydrophobic temporary plugging technology
