【摘要】 本文对我们合成的聚丙烯酰胺高浓度胶乳进行性能评定。评定主要指标有胶孔的溶解性、稳定性(包括放置稳定性、冻融稳定性、机械稳定性)及某些化学与物理性质。还进行了胶乳的应用试验。胶乳溶解速度快,能在絮凝、油田钻井泥浆中直接溶解使用,性能与粉剂及国外同类产品相当。更多还原

【Abstract】 Various marks of polyacrylamide latex of high concentration（～21%）with different molecular weights and degrees of hydrolysis,which are prepared in our laboratory by an inverse phase emulsion polymerization process,are evaluated in comparision with powder- ed polymers and with a similar latex of a foreign supplier.All of our latex samples read- ily dissolve in water in no more than 3 min.and maintain their properties after one-year storage at room temperture but loss their stability partly after intensive mechamical stirring.Some of our latex samples possess tolerancy to freeze-thaw cycles similarly to that for comparison.Preliminary laboratory tests show that these polyacrylamides in latex are as effective as powdered polymers in coagulating Zn（OH）₂·Ca（OH）₂ suspension and coal-washing water and in treating drilling muds.更多还原