Graphene containing paper and preparation method thereof

A graphene and graphene dispersion technology, applied in the field of pulping and papermaking, can solve the problems of low kappa value and low pulping yield, achieve low kappa value, high fiber yield and simplify the pulping process Effect

Inactive Publication Date: 2018-06-12
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method can not only solve the problem of low pulping yield, but also effectively improve the whiteness of the pulp, and the prepared fiber product has the characteristics of good hygienic properties and low kappa value; the paper prepared by the method of the invention has good softness, High strength and conductive function

Method used

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  • Graphene containing paper and preparation method thereof

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Effect test

Embodiment 1

[0035] The present embodiment provides a kind of preparation method of the paper containing graphene, and specific operation steps are as follows:

[0036] S1. Deslagging the agricultural and forestry wastes, removing the silt and dust therein, drying until the water content is 20%, carrying out the screw extrusion processing on the above agricultural and forestry wastes, and then standby; the compression ratio of the screw extrusion processing is 1:1;

[0037] S2. Place the extruded agricultural and forestry waste obtained in step S1 in an ultrasonic reactor, add a 30% ethanol solution, the liquid ratio is 1:6, the cooking temperature is 120° C., and the time is 50 minutes before discharging to obtain Bleached pulp; the process parameters of the ultrasonic reactor are: the power of the ultrasonic reactor is 1200W, and the frequency is 30KHz;

[0038] S3. Place the bleached pulp obtained in step S2 in a displacement washer, and use a 50% ethanol solution under normal temperat...

Embodiment 2

[0044] The present embodiment provides a kind of preparation method of the paper containing graphene, and specific operation steps are as follows:

[0045] S1. The agricultural and forestry wastes are subjected to deslagging treatment, after removing the silt and dust therein, and dried until the water content is 30%, and the above-mentioned agricultural and forestry wastes are subjected to screw extrusion processing, and then set aside; the compression ratio of the screw extrusion processing is 2:1;

[0046]S2. Place the extruded agricultural and forestry waste obtained in step S1 in an ultrasonic reactor, add a 50% ethanol solution, the liquid ratio is 1:8, the cooking temperature is 100° C., and the time is 60 minutes before discharging to obtain Bleached pulp; the process parameters of the ultrasonic reactor are: the power of the ultrasonic reactor is 1600W, and the frequency is 20KHz;

[0047] S3. Place the bleached pulp obtained in step S2 in a replacement washer, and u...

Embodiment 3

[0053] The present embodiment provides a kind of preparation method of the paper containing graphene, and specific operation steps are as follows:

[0054] S1. The agricultural and forestry wastes are subjected to deslagging treatment, after removing the silt and dust therein, and dried until the water content is 25%, and the above-mentioned agricultural and forestry wastes are subjected to screw extrusion processing, and then set aside; the compression ratio of the screw extrusion processing is 1.5:1;

[0055] S2. Place the extruded agricultural and forestry waste obtained in step S1 in an ultrasonic reactor, add a 40% ethanol solution, the liquid ratio is 1:7, the cooking temperature is 110° C., and the time is 55 minutes before discharging to obtain Bleached pulp; the process parameters of the ultrasonic reactor are: the power of the ultrasonic reactor is 1300W, and the frequency is 25KHz;

[0056] S3. Place the bleached pulp obtained in step S2 in a displacement washer, a...

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Abstract

The invention relates to graphene containing paper and a preparation method thereof and discloses an agricultural and forestry residue papermaking technology which comprises the technologies of spiralextruding treatment, steaming and boiling, washing, papermaking, paper modifying and the like. According to the graphene containing paper disclosed by the invention, the agricultural and forestry residues are utilized as a raw material to prepare fibers, and an ultrasonic method and an ethyl alcohol method are matched and utilized; the graphene containing paper prepared by the preparation methoddisclosed by the invention has the advantages of good paper flexibility, high strength and electric conduction function; no harmful chemicals is guided into in the whole process, so that the hygieniccharacteristic of the fibers is ensured. As graphene dispersion liquid is added in a pulping process, an obtained product has better electric-conduction and anti-microbial performance and especially has an effective inhibiting and killing effect on 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 graphene-containing paper and a preparation method thereof. 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 is a new typ...

Claims

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Application Information

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IPC IPC(8): D21C3/20D21C9/02D21C9/10D21H17/00D21H17/01D21H17/02D21H17/67D21H21/16
CPCD21C3/20D21C9/02D21C9/10D21H17/00D21H17/01D21H17/02D21H17/675D21H21/16
Inventor 贾炯刘水长
Owner HUNAN UNIV OF TECH
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