Agricultural Mechanization Research Application of Macromolecular Absorbent Resin in Agriculture Zhang Rongfang (Heilongjiang Academy of Agricultural Sciences, Harbin 150086, Heilongjiang, China) The better the sub-strength, the more favorable it is for flocculation to form aggregate structure.
The stretching state and electroviscous effect of the superabsorbent resin molecular chains are affected by the electrolyte. When salt is present, the molecular stretch decreases and agglomeration decreases accordingly. In this case, the cationic water-absorbent resin has a relatively slow salt and poor water absorption speed; the non-ionic water-absorbing agent has a faster water absorption rate and better salt resistance, but the water absorption capacity is relatively low.
(5) At present, synthetic raw materials for water-absorbent resins are mainly raw materials, cellulose, starch and their derivatives synthesized in petroleum, which are expensive to manufacture.
In the future, new inexpensive synthetic raw materials should be improved or developed, and a series of products with strong water absorption capacity, fast water absorption speed, long effective period, low price, and wide adaptability range should be developed so that the macromolecular water-absorbing resin can be developed and applied in large areas in agriculture. Promote the development of agriculture.
Wei Wenling Synthesis and Application of Molecular Water Absorbent Resins . Shihezi University studies Zou Xinyi. Super absorbent agent. Beijing: Publishing House of Chemical Industry, 1998. Cai Dianxiong. Effects of Soil Water Retention Agents on Soil Water Retention and Crop Emergence
Wang Xiaotian. Absorbent and water-retaining properties of superabsorbents. Wang Weimin, a Beijing agricultural giant. Dryland agricultural technology in northern China. Beijing: China Agriculture Press, He Tengbing. Absorption Capacity of Water Absorbent and Its Effect on Physical Properties of Soil Moisture . Tillage and cultivation, 1995, Zhang Zhiguang. Application of Water Retention Agent in Crop Drought Resistant Cultivation Weather, 1997, (2): 6-8. Wang Xiaotian. Effect of super absorbent resin on soil physical properties. Beijing Agricultural History Lan Bo, Li Yunmeng. Application of water retaining agent in water saving agriculture. Eco-agriculture Beijing Agricultural University Cooperative Application Group. Basic research on application of superabsorbent resin in agriculture. Journal of Beijing Agricultural University, 1989, 15U>
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