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Original Research Article In this paper, plant ash grains are used as raw materials to prepare water retention agent. The water absorbent property of water retention agent was evaluated, and the optimal condition of preparation was as follows: The mass ratio of polyacrylic acid monomer and plant ash was 3:1, the neutralization degree was 70%, the mass ratio of evocating agent and monomer was 7.2%, and water absorption rate was 562.4 g•g -1 .

Study on the Preparation and Water Retention Property of Water Retention Agent Based on Plant Ash