包头 污水处理酒厂 洗煤厂 造纸厂聚酰胺

聚酰胺用作土壤保水剂的作用原理
通过使用聚酰胺改善土壤结构，增加土壤水稳性团聚体数量，改善土壤渗透性，减少地表径流，提高土壤抗侵蚀能力，使经PAM处理的土壤具有良好的水土保持效果，保肥增产。
聚酰胺能增加土壤团聚体，改善土壤结构。PAM吸收和膨胀土壤中的水分，将分散的土壤颗粒粘合成块，降低土壤容重，增加孔隙度，调节土壤中的水、气和热条件，有利于作物生长。聚酰胺能提高土壤吸水能力，增加土壤含水量。由于PAM含有大量的电解羧酸基团，吸水后网络结构扩大，储水空间增大，持水能力提高。聚酰胺能提高土壤持水能力。主要是降低土壤水分蒸发速率和土壤水分入渗速率。大量试验表明，PAM保水剂一般能提高土壤持水能力2/5左右。同时，由于土壤保持了大量的水分，土壤的热容增加，蒸发缓慢，从而减少了土壤的热损失，从而保持了稳定的土壤温度。


The principle of Polyacrylamide as a soil water retaining agent is to use Polyacrylamide to improve soil structure, increase the amount of soil water stable aggregates, improve soil permeability, reduce surface runoff, and improve soil erosion resistance, the soil treated by PAM has good soil and water conservation effect, and can keep fertilizer and increase yield. POLYACRYLAMIDE can increase soil aggregates and improve soil structure. Pam Absorbs and expands the moisture in the soil, binds the dispersed soil particles into blocks, reduces the bulk density of the soil, increases the porosity, regulates the water, air and heat conditions in the soil, and is beneficial to the growth of crops. POLYACRYLAMIDE can improve soil water absorption and increase soil water content. Because Pam contains a large number of electrolytic carboxylic acid groups, the network structure expands after absorbing water, the water storage space increases, and the water holding capacity increases. POLYACRYLAMIDE can improve soil water retention. It is mainly to reduce soil water evaporation rate and soil water infiltration rate. A large number of experiments show that PAM water retaining agent can generally improve soil water holding capacity of about 2/5. At the same time, because the soil retains a lot of water, the heat capacity of the soil increases, evaporation is slow, thus reducing the heat loss of the soil, thus maintaining a stable soil temperature.