Superabsorbent resin with high pressure absorption and high water retention, preparation method and application

Abstract

The invention relates to super absorbent resin with high antibacterial property and high salt tolerance. The super absorbent resin is prepared from the following raw materials in parts by weight: 100parts of acrylic acid, 35-45 parts of a basic compound, 0.06-1.8 parts of a primary crosslinking agent, 0.05-2 parts of an initiator, 0.3-4 parts of a compound crosslinking agent and 0.01-10 parts ofa tea saponin intercalation graphene antibacterial composition. A preparation method of the super absorbent resin comprises the following steps: in a mixed solution of acrylic / acrylate formed by diluting with deionized water and neutralizing an acrylic monomer solution with basic compound, adding the primary crosslinking agent, uniformly stirring, then adding 0-45% of tea saponin intercalation graphene antibacterial composition, carrying out ultrasonic dispersion for 30-240 minutes, then heating to the temperature of 35-70 DEG C, adding the initiator, carrying out polymerization to form colloidal super absorbent resin, sequentially carrying out pelletizing and drying, and carrying out surface treatment at the temperature of 110-180 DEG C by adopting a mixed crosslinking agent, so that thesuper absorbent resin is obtained.

Description

technical field [0001] The invention belongs to the research field of functional superabsorbent resin, and in particular relates to a superabsorbent resin with high antibacterial property and high salt tolerance, a preparation method and application thereof. Background technique [0002] Super absorbent polymer (SAP) is a general term for polymers with high water absorption and water retention properties. In foreign countries, in the early 1950s, Goodrich Corporation of the United States developed cross-linked polyacrylic acid resins, and then Russell et al., the Northern Research Center of the United States Department of Agriculture, began to study the grafting technology of starch and acrylonitrile in 1961; by 1978, Sanyo, Japan Chemical Industry Co., Ltd. develops and industrializes the production of starch-grafted polyacrylic acid copolymerized superabsorbent resin. In China, the research on superabsorbent resin started in the early 1980s. Due to objective factors such ...

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Problems solved by technology

[0022] The purpose of the present invention is to aim at the deficiencies and defects of the present inorganic antibacterial agents and organic antibacterial agents, and to provide a composite antibacterial agent formed by intercalating graphene oxide with natural organic matter tea saponin. Effectiveness, broad spectrum and other advantages, while providing a superabsorbent resin compounded with tea saponin intercalated graphene oxide antibacterial composition, the superabsorbent resin not only has excellent, safe and fast-acting, slow-release and long-acting antibacterial properties , and has high pressure absorption performance, high water retention and high salt resistance absorption performance, and solves the problem of low salt resistance absorption performance and pressure resistance absorption ratio of existing superabsorbent resins, low water retention ratio, and low gel strength after absorbing urine. The technical problem of colloid blockage (slow flow rate) caused by colloid collapse

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