A new method for preparing amphoteric polyacrylamide (APAM), a kind of flocculant, by modification of nonionic polyacrylamide was developed.
开发了一种对非离子聚丙烯酰胺进行改性制备两性聚丙烯酰胺(APAM)絮凝剂的新方法。
In allusion to the characteristics of high temperature reservoirs, nonionic polyacrylamide was used to react with formaldehyde and phenol form weak gel.
针对高温油藏特点，采用非离子聚丙烯酰胺与甲醛和苯酚进行了地层条件下的成胶性能研究。
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