摘要
用光学显微镜和扫描电镜观测了聚丙烯酰胺/柠檬酸铝胶态分散凝胶在盖玻片上常温自然干燥后形成的聚集体微观结构,通过与相同浓度的聚丙烯酰胺水溶液和盐水溶液在相同条件下形成的聚集体微观结构的比较及胶态分散凝胶颗粒有效直径的测定,确认该胶态分散凝胶是由以分子内交联为主生成的、彼此独立。
The morphologies of the aggregates of HPAM/aluminum citrate colloidal dispersion gels formed on glass substrate after evaporation of the water are observed and investigated by using optical and scanning electronic microscopy. These aggregates are principally of dendrite type with distinguishable packing elements being gel particles. The gel particles are composed predominantly of intermolecularly crosslinked HPAM molecular coils as shown on SEM photographs. The dimension of the gel particles observed under SEM and determined instrumentally are practically the same. The morphological structures of the aggregates formed from HPAM slutions in salt and distilled waters are more complex and fine.
出处
《油田化学》
CAS
CSCD
北大核心
1998年第4期358-361,353,共5页
Oilfield Chemistry
关键词
胶态分散凝胶
聚丙烯酰胺
微观结构
油田化学
Colloidal Dispersion Gel (CDG), HPAM/Aluminum Citrate CDG, Microstructure, Particle Structure, Electronic Miroscopic Investigation