Bacteriostatic deodorant super absorbent resin and absorbent products of super absorbent resin

Abstract

The invention provides a bacteriostatic deodorant super absorbent resin. An acrylic acid / acrylate mixed solution is prepared by neutralization of a basic compound and an acrylic monomer solution; a primary crosslinking agent and a primary dispersing agent are added into the mixed solution and uniform stirring is performed; an antibacterial agent is added and uniform stirring is continued; a temperature is raised to a range of 35 DEG C-70 DEG C; an initiator is added for polymerization to form colloid super absorbent resin; granulation and drying are performed on the colloid super absorbent resin in order; a composite bacteriostatic crosslinking agent is added at a temperature in a range of 110-180 DEG C for surface treatment to form the core-shell-type super absorbent resin having a three-dimensional crosslinking network structure. The bacteriostatic agent is one or two selected from a group consisting of an amino acid metal salt ion chelate and a chitosan metal salt ion chelate. The super absorbent resin provided by the invention is applied in sanitation hygroscopic products, has notable bacteriostatic and deodorant properties, has easily available raw materials, has low costs and has huge benefits.

Description

Technical field [0001] The invention belongs to the research field of functional super absorbent resins, and particularly relates to a bacteriostatic and deodorizing super absorbent resin and absorbent products using the bacteriostatic and deodorizing super absorbent resin. Background technique [0002] Super absorbent polymer (SAP) is a general term for high-molecular polymers with high water absorption and water retention properties. In foreign countries, in the early 1950s, the American Goodrich Company developed cross-linked polyacrylic acid resins. Then Russell and others from the Northern Research Center of the US Department of Agriculture began to study the grafting technology of starch and acrylonitrile in 1961; in 1978, Sanyo, Japan Huacheng Company developed and industrialized production of starch grafted polyacrylic acid copolymer type super absorbent resin. In China, the research of super absorbent resin started in the early 1980s. Due to objective factors such as la...

AI Technical Summary

Problems solved by technology

[0015] Looking at the known technologies in this field, it mainly achieves the antibacterial effect by adding nano-silver ions or quaternary ammonium salt ions, but the above-mentioned method is applied to personal daily necessities for women and children, except that there is a relatively large safety hazard, and it is harmful to the user's body. In addition to causing harm, using Ag+ directly as antibacterial ions also has the following defects: (1) Ag+ is easily reduced to simple silver and turns black, which affects the application of silver ion antibacterial agents in light-colored products, and has poor discoloration resistance; (2) Ag2O precipitation is easy to form in an alkaline environment, and the slow-release performance is poor, which affects the antibacterial persistence; (3) when Ag+ encounters Cl- items or environments, it is easy to form AgCl precipitation, that is, silver precipitation, which leads to its antibacterial performance. Even failure, poor salt resistance, (4) low silver loading, limited antibacterial effect

[0016] Based on the technical problems existing in the prior art, the present invention provides antibacterial and deodorizing superabsorbent resins containing amino acids, chitosan chelated nano-silver, and nano-zinc chelated antibacterial agents and a preparation method thereof, providing a The superabsorbent resin with slow-release antibacterial function solves the existing technical problems such as easy discoloration of metal ions, especially silver ion antibacterial agents, poor slow-release performance and salt tolerance, and low silver loading.

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