淀粉-丙烯酰胺接枝共聚物的合成及用作沙土稳定剂  

Synthesis of Starch-acrylamide Graft Copolymer and Its Application to be Used as A Sandy Soil Stabilizer

作　　者：李淑君[1] 李衍方[1] 艾沐野[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2006年第4期70-72,共3页Journal of Northeast Forestry University

摘　　要：以淀粉为基本原料，通过与丙烯酰胺的接枝共聚反应制备聚合物沙土稳定剂，优选合成条件为：m（淀粉）：m（丙烯酰胺）：m（引发剂）：1．00：0．60：0．02，反应温度为75℃，反应30min。傅立叶红外光谱分析证明产物为淀粉-丙烯酰胺接枝共聚物。淀粉-丙烯酰胺接枝共聚产物用作沙土稳定剂的应用试验结果表明，当接枝共聚产物用量为土样质量的0．2％时，土样的初始侵蚀风速提高到16．0～24．0m／s，水侵蚀率降为10．0％，粒径大于0．28mm稳定性团聚体含量上升到44．8％。A sandy soil stabilizer, starch-acrylamide graft copolymer, was synthesized. The optimum reaction conditions were obtained as mass ratio of starch to acrylamide and initiator 1 ： 0.6 ： 0.02, reaction temperature 75 degrees C, reaction time 30 min. The product was proved to be starch-acrylamide graft copolymer by FTIR analysis. The application of the product to be used as a sandy soil stabilizer showed that, when the ratio of grafted copolymer to soil sample weight was 0.2%, the wind speed for incipient erosion increased to 16.0～24.0 m/s, and the water erosion ratio declined to 10.0 percent. Moreover, the content of aggregates with diameter more than 0.28 mm in the soil samples went up to 44.8 percent.

关 键 词：沙土稳定剂 淀粉 丙烯酰胺 接枝共聚 

分 类 号：O636.12[理学—高分子化学]