Non-toxic pollution-free composite drying agent

Abstract

The invention aims at providing a non-toxic pollution-free composite drying agent. According to the technical scheme for achieving the purpose, a preparation method of the drying agent comprises the following steps: adding guar gum in water for dissolving, and stirring at the room temperature for 0.5-2 hours; adding an acrylate monomer which is partially neutralized by alkali, uniformly mixing, subsequently adding acrylamide and potassium peroxodisulfate, carrying out stirring reaction at 30-70 DEG C for half an hour, carrying out suction filtration after the reaction is completed, drying, crushing, then adding soybeans as an auxiliary material, uniformly stirring to obtain a mixture, putting the mixture into a bulking machine, bulking, crushing, and sieving to obtain the drying agent.

Description

technical field [0001] The invention relates to the field of desiccants, in particular to a non-toxic and pollution-free composite desiccant. Background technique [0002] A desiccant is a dehydrating agent that absorbs moisture from the atmosphere. Its drying principle is to physically absorb water molecules in its own structure or chemically absorb and change its chemical structure to become another substance. [0003] The commonly used desiccants include chemical desiccants and physical desiccants. Chemical desiccants dry by combining with water to form hydrates, such as calcium sulfate and calcium chloride, etc. Physical desiccants dry by physically adsorbing water, such as silica gel and activated alumina. However, most of the desiccants have low water absorption capacity, and are easy to reach saturation after absorbing water or become a solution during the moisture absorption process. The most serious thing is that when such desiccants are accidentally eaten by child...

AI Technical Summary

Problems solved by technology

However, most of the desiccants have low water absorption capacity, and they are easy to reach saturation after absorbing water or become a solution during the moisture absorption process. The most serious thing is that when such desiccants are accidentally eaten by children, they will cause damage to the human body.