Preparation method of graphene anti-bacterial composition and anti-bacterial SPA (super absorbent resin)
A technology of antibacterial composition and graphene, applied in the field of graphene oxide antibacterial composition, can solve the problems of colloid blockage, low pressure absorption rate, low water retention rate, etc. range, the effect of excellent antibacterial properties
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[0062] The preparation of the antibacterial superabsorbent resin of the present invention comprises: adding primary cross-linking agent and stirring After uniformity, add 0-45% tea saponin intercalated graphene antibacterial composition and ultrasonically disperse for 30-240min, then heat up to 35°C-70°C and add colloidal antibacterial superabsorbent resin formed by initiator polymerization. The colloidal antibacterial superabsorbent resin is sequentially granulated, dried, and surface-treated with a mixed cross-linking agent at a temperature of 110-180°C to obtain a polyacrylate core-shell antibacterial high-density resin with a three-dimensional cross-linked network structure. Absorbent resin. The mixed cross-linking agent is prepared by making composite cross-linking agent and 55%-100% tea saponin intercalated graphene antibacterial composition, deionized water and ultrasonically dispersing to form a mixed cross-linking agent, wherein the tea saponin intercalated The conce...
Embodiment 1
[0066] The tea saponin intercalated graphene antibacterial composition described in this embodiment consists of the following parts by weight: 5 g of tea saponin, 10 g of graphene oxide, and 0.01 g of sodium lauryl sulfate. Wherein, the purity of the tea saponin is 75%.
[0067] The graphene oxide is porous graphene oxide, and the polar oxygen-containing functional groups of the porous graphene oxide are carboxylated, and the pore diameter is 0.5-100 nm.
[0068] The tea saponin intercalated graphene antibacterial composition described in the present embodiment is made by the following steps:
[0069] Step 1: dissolving an appropriate amount of tea saponin in deionized water to form a tea saponin solution with a mass concentration of 5%.
[0070] Step 2: Add sodium lauryl sulfate in deionized water and stir evenly, then add graphene oxide into deionized water so that the concentration of graphene oxide is 0.2mg / mL, ultrasonically disperse for 30-240min to form graphite Alken...
Embodiment 2
[0074] The tea saponin intercalated graphene antibacterial composition described in this embodiment consists of the following parts by weight: 45 g of tea saponin, 50 g of graphene oxide, and 2 g of sodium dodecylsulfonate. Wherein, the purity of the tea saponin is 85%. The graphene oxide is selected from porous graphene oxide, and the polar oxygen-containing functional groups of the porous graphene oxide are carboxylated, and the pore diameter is 0.5-100 nm.
[0075] The tea saponin intercalated graphene antibacterial composition described in the present embodiment is made by the following steps:
[0076] Step 1: dissolving an appropriate amount of tea saponin in deionized water to form a tea saponin solution with a mass concentration of 20%.
[0077] Step 2: Add sodium dodecylsulfonate into deionized water, and stir evenly, then add graphene oxide into deionized water so that the concentration of graphene oxide is 20mg / mL, ultrasonically disperse for 30-240min to form graph...
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