Preparation method of graphene anti-bacterial composition and anti-bacterial SPA (super absorbent resin)

Abstract

The invention relates to a preparation method of a graphene anti-bacterial composition. The composition comprises the following ingredients in parts by weight: 5-45 parts of tea saponin, 10-50 parts of graphene oxide and 0.01-2 parts of a dispersing agent and is prepared by the following steps: step 1, dissolving an appropriate amount of tea saponin into deionized water, so as to form tea saponin solution with the mass concentration of 5%-20%; step 2, adding the dispersing agent into the deionized water, uniformly stirring the mixture, adding the graphene oxide into the deionized water until the concentration of the graphene oxide is 0.2-20 mg/mL, and performing ultrasonic dispersion for 30-240 min, so as to form graphene suspension liquid; step 3, adding the graphene suspension liquid obtained in step 2 into the tea saponin solution obtained in step 1, and performing ultrasonic dispersion for 30-120 min, so as to form tea saponin intercalated graphene suspension liquid; step 4, freezing and drying the tea saponin intercalated graphene suspension liquid obtained in step 3, so as to obtain powdery tea saponin intercalated graphene.

Description

technical field [0001] The invention belongs to the research field of functional antibacterial materials, in particular to a graphene oxide antibacterial composition. 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 as late start and short development time, the innovation ability and technology development ...

AI Technical Summary

Problems solved by technology

[0024] The purpose of the present invention is to provide a kind of graphene antibacterial composition for the deficiencies and defects of the present inorganic antibacterial agent and organic antibacterial agent, and the graphene antibacterial composition is a tea soap formed by intercalating graphene oxide with natural organic matter tea saponin Plain intercalated graphene antibacterial composition, the tea saponin intercalated graphene antibacterial composition has the advantages of rapidity, high efficiency, long-term effect, broad spectrum, etc., and simultaneously provides an antibacterial composition compounded with the above-mentioned tea saponin intercalated graphene Antibacterial superabsorbent resin, the antibacterial superabsorbent resin not only has excellent, safe and quick-acting and slow-release long-acting antibacterial performance, but also has high pressure absorption performance, high water retention and high salt resistance absorption performance, solving the existing super absorbent The salt-resistant absorption performance and pressure-resistant absorption rate of the permanent resin are low, the water retention rate is low, and the gel strength is low after absorbing urine, and even the technical problems of colloid blockage (slow liquid flow rate) caused by colloid collapse

Images