摘要
以风化褐煤为原料制备腐植酸 (HA) ,将HA与普通型保水剂 (PSA)复合 ,获得HA型保水剂 (HA -PSA)。对HA -PSA和PSA进行了在沙土中的保水性能及对玉米生长作用的对比试验。结果表明 :HA -PSA保水效果好 ,能有效促进植物生长 ,成本比PSA低 10 %左右。
Humic acid (HA ) was abstracted from leonardite,and a composite superabsorbent (HA PSA ) was prepared by compounding poly (acrylic acid ) and lignitic humic acid.Compared with the sample of poly (acrylic acid ),the water retention of HA PSA in sand and its positive effect no cron growning was studied.The experimental results showed that HA-PSA possessed the higher water absorbency,improved plant growing,and the production cost of HA PSA could be reduced 10%.
出处
《煤炭工程》
北大核心
2005年第1期67-68,共2页
Coal Engineering
