Method for using graphene/shell to prepare antibacterial paper

A graphene, antibacterial paper technology, applied in non-woody plant/crop pulp, cellulose treatment with microorganisms/enzymes, paper, etc., can solve the problem of insufficient pulping technology, low pulping yield, low kappa value, etc. problem, to achieve the effect of simple pulping process, high fiber yield and low kappa value

Inactive Publication Date: 2018-06-08
林荣铨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention aims at the insufficient pulping technology of fruit shells, and provides a method for preparing antibacterial paper using graphene/fruit shells. The

Method used

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  • Method for using graphene/shell to prepare antibacterial paper

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Embodiment 1

[0027] The method that utilizes graphene / husk to prepare antibacterial paper provided by the present embodiment comprises the following steps:

[0028] S1. Carry out deslagging treatment on the fruit shell, remove the silt and dust therein, dry until the water content is 20%, carry out the screw extrusion process on the above fruit shell, and set aside;

[0029] S2. the fruit shell of step S1 is placed in the ultrasonic reactor, add catalase, laccase and water, the consumption of catalase is 1.5 kilograms / ton material, and the consumption of laccase is 3 kilograms / ton material, water and The mass ratio of the fruit shell is 8:1, fully mixed, and fermented for 2 hours at a temperature of 70°C, and filtered after the fermentation to obtain filtrate and filtrate;

[0030] S3. add graphene dispersion liquid in the filtrate that step S2 obtains, after mixing uniformly, carry out decompression filtration 40min, dry 60min at 50 ℃, obtain the fruit shell fiber containing graphene; Fru...

Embodiment 2

[0036] The method that utilizes graphene / husk to prepare antibacterial paper provided by the present embodiment comprises the following steps:

[0037] S1. Carry out deslagging treatment to the fruit shell, remove the silt and dust therein, dry until the water content is 30%, carry out the screw extrusion process on the above fruit shell, and set aside;

[0038] S2. the fruit shell of step S1 is placed in the ultrasonic reaction kettle, add catalase, laccase and water, the consumption of catalase is 3 kilograms / ton material, and the consumption of laccase is 5 kilograms / ton material, water and The mass ratio of the fruit shell is 4:1, fully mixed, and fermented, the fermentation time is 4 hours, the temperature is 80°C, and the filtrate and the filtrate are obtained by filtering after the fermentation is completed;

[0039] S3. add graphene dispersion liquid in the filtrate that step S2 obtains, after mixing uniformly, carry out decompression filtration 60min, dry 120min at 80...

Embodiment 3

[0045] The method that utilizes graphene / husk to prepare antibacterial paper provided by the present embodiment comprises the following steps:

[0046] S1. Carry out deslagging treatment on the fruit shell, remove the silt and dust therein, dry until the water content is 25%, carry out the screw extrusion process on the above fruit shell, and set aside;

[0047] S2. the fruit shell of step S1 is placed in the ultrasonic reaction kettle, add catalase, laccase and water, the consumption of catalase is 2 kilograms / ton material, and the consumption of laccase is 4 kilograms / ton material, water and The mass ratio of the fruit shell is 5:1, fully mixed, and fermented, the fermentation time is 4 hours, the temperature is 75°C, and after the fermentation is completed, it is filtered to obtain the filtrate and the filtrate;

[0048] S3. add graphene dispersion liquid in the filtrate that step S2 obtains, after mixing uniformly, carry out decompression filtration 50min, dry 80min at 60 ℃,...

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Abstract

The invention relates to a method for using graphene/shell to prepare antibacterial paper, and discloses a technology for preparing shell fiber. The technology comprises the steps of spiral squeezingprocessing, biological enzyme fermenting, papermaking, paper modifying and the like. The shell serves as raw materials for preparing fiber, then through the cooperation of ultrasonic waves and biological enzymes, the prepared fiber has high yield, high whiteness and a low kappa number, in the whole process, no harmful chemical products are introduced, and the hygiene of the fiber is ensured. Sincegraphene dispersion liquid is added in the pulping process, the obtained product has high electric conduction and bacterial resistance, and particularly has an effect of effectively inhibiting and killing staphylococcus aureus, escherichia coli and hemolytic streptococcus.

Description

technical field [0001] The invention belongs to the technical field of pulping and papermaking, and in particular relates to a method for preparing antibacterial paper by utilizing graphene / husk. Background technique [0002] Graphene is a new type of two-dimensional ultra-thin nanomaterial, because of its unique structure, mechanical and electronic properties, it has broad application prospects in the field of bio-nanotechnology such as drug delivery and tumor treatment. Studies have shown that graphene can not only cut the bacterial cell membrane, but also induce the detachment of phospholipid molecules on the bacterial cell membrane, so as to realize the large-scale direct extraction of phospholipid molecules on the cell membrane by graphene. The physical action of cutting and extracting can cause the bacterial cell membrane to lose its integrity and the intracellular material to flow out, thereby achieving the effect of killing the bacteria. At the same time, graphene i...

Claims

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Application Information

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IPC IPC(8): D21B1/30D21C5/00D21H21/16D21H17/67D21H17/00D21C9/00D21H17/37D21H19/14D21H11/12
CPCD21B1/303D21C5/005D21C9/004D21H11/12D21H17/00D21H17/37D21H17/675D21H19/14D21H21/16
Inventor 林荣铨
Owner 林荣铨
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