The fluid type of sodium lignosulphonate coating is yielding pseudoplastic fluid.
木钠涂料的流体类型为屈服假塑性流体。
2
The SRA has better effect than lignosulphonate calcium as the forming retarded time is longer.
在延迟成型时间较长时，SRA起到的缓凝作用比木钙更明显。
3
The invention discloses a water shutoff agent for oil extraction, which is prepared by mixing epoxy resins, polyethylene ammonia, calcium lignosulphonate, calcium chloride and water.