高分子吸水剂是一种新型的功能高分子材料,商品为白色片状和粉状等。结构各异,功能相似。遇水后受同性电荷排斥作用,微粒体膨胀,能吸收大于自身重量数百倍至千倍以上的水分。吸水后呈凝胶状,加压几乎不出水,但在干燥环境中受渗压作用,可将水慢慢释放出来(其中95％可供植物根吸收),微粒体收缩复原。利用此特性可改良土壤水分状况,通过微粒体反复胀缩,能使土壤形成团粒结构,提高土壤的通透性。 Polymer water-absorbing agent is a new type of functional polymer materials, products such as white flakes and powder. Different structures, similar functions. By water repellent role of the same sex, microsomal expansion, can absorb more than its own weight hundreds of times to a thousand times more moisture. After the water was gel-like, almost no water pressure, but in a dry environment by osmotic pressure, the water can be slowly released (of which 95% for root absorption), microsomal contraction recovery. The use of this feature can improve the soil moisture status, through repeated expansion and contraction microsomes, can make the formation of soil aggregate structure, improve soil permeability.