含粉煤灰与膨润土的高吸水保水复合材料性能测试

Performance test for superabsorbent and water retention composites containing fly ash and bentonite

采用溶液聚合法首次合成出粉煤灰-膨润土/丙烯酸-丙烯酰胺高吸水复合材料,该复合材料对蒸馏水、自来水、生理盐水的吸液倍率高于国家"863计划"关于高吸水材料的技术指标。对该复合材料的保水性能、二次吸液性能、耐寒性能及其吸液速率进行测试。结果表明:该复合材料吸水后可长时间保持湿润,具有优越的保水性;具有较高的二次吸液能力,可以多次使用;0℃吸液性能较好,可以应用于低温领域;吸水速率较快,可用于实际生产。

Fly ash - bentonite/acrylic polymerization, and the composite has acid- acrylamide superabsorbent composite was first synthesized by solution higher absorption ratio to distilled water, tap water, saline solution than the superabsorbent material specifications of national ＂863 program＂. Also, the performance tests of water retention, the second absorbent, cold resistance as well as its rate of absorption solution suggest that the composite remains wet long after water absorption, ondary can be used muhipl possessing excellent water retention; the composite with high suction capacity of the sec- e times; the composite, bearing better suction performance at 0℃, can be used in low temperature areas; the composite, having rapid water absorption rate, can be used for actual production