Method for increasing attaching amount and conductivity of graphene on cotton fabric
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A cotton fabric, conductivity technology, applied in the field of textile printing and dyeing, can solve the problem of low adhesion, and achieve the effect of increasing the amount of adhesion and improving the conductivity.
Active Publication Date: 2018-11-23
QINGDAO UNIV
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However, the cotton fiber itself also has a certain negative charge, and it has a strong electrostatic repulsion force between the graphene oxide, which also carries a negative charge, in the solution, so that its adhesion on the cotton fabric is low.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment 1
[0012] (1) Add a certain amount of cotton fabric cationic modifier to the water, adjust the pH to 12.5 with sodium hydroxide, add the cotton fabric to be treated, the bath ratio is 1:20, and the mass ratio of cotton fabric to cationic modifier is 10 : 1, treat at 90°C for 15 minutes, then rinse with water repeatedly until the lotion is neutral, and dry the fabric;
[0013] (2) After drying, the cotton fabric is treated with 4g / L sodium periodate solution at 25°C in the dark for 6 hours, with a bath ratio of 1:30. After completion, it is fully washed with water to remove residual substances, and the cotton fabric is dried;
[0014] (3) The cotton fabric was soaked in 0.5mg / ml graphene oxide solution for 2 hours and then taken out, the bath ratio was 1:20, and then the cotton fabric was soaked in a solution containing 10g / L ascorbic acid and 1ml / L ammonia water, bath Ratio 1:20, treated at 95°C for 30 minutes, then taken out and washed and dried.
Embodiment 2
[0022] (1) Add a certain amount of cotton fabric cationic modifier to the water, adjust the pH to 12.5 with sodium hydroxide, add the cotton fabric to be treated, the bath ratio is 1:20, and the mass ratio of cotton fabric to cationic modifier is 10 : 1, treat at 90°C for 15 minutes, then rinse with water repeatedly until the lotion is neutral, and dry the fabric;
[0023] (2) After drying, the cotton fabric is treated with 8g / L sodium periodate solution at 25°C in the dark for 6 hours, with a bath ratio of 1:30. After completion, it is fully washed with water to remove residual substances, and the cotton fabric is dried;
[0024] (3) Take out the cotton fabric after soaking in 2mg / ml graphene oxide solution for 2 hours, the bath ratio is 1:20, and then soak the cotton fabric in a solution containing 15g / L ascorbic acid and 1ml / L ammonia water, the bath ratio 1:20, treated at 95°C for 30 minutes, then taken out and washed with water and dried.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract
The invention relates to a method for increasing attaching amount and conductivity of graphene on a cotton fabric, and belongs to the technical field of textile printing and dyeing. The method adoptsthe technology with the following steps of (1) adding a certain amount of cotton fabric anionic modifier into water, adjusting the pH (potential of hydrogen) value to 12.5 by sodium hydroxide, addinginto the to-be-treated cotton fabric, controlling the bath ratio to 1:20, and the mass ratio of cotton fabric to anionic modifier to 10:1, treating for 15min at the temperature of 90 DEG C, repeatedlywashing by water until the property of the washing solution is neutral, and drying the fabric; (2) after drying, treating the cotton fabric by a sodium periodate solution with concentration of 4 to 8g/L for 6h at the temperature of 25 DEG C under the light shading condition, controlling the bath ratio to 1:30, fully washing by water to remove the residual matter, and drying the cotton fabric; (3)impregnating the cotton fabric into a graphene oxide solution with concentration of 0.5 to 2mg/ml for 2h, controlling the bath ratio to 1:20, impregnating the cotton fabric into a water solution containing 10 to 15g/L ascorbic acid and 1ml/L ammonia water, controlling the bath ratio to 1:20, treating for 30min at the temperature of 95 DEG C, fetching out, washing by water, and drying. The methodhas the advantages that the cotton fabric is modified by anions, and properly oxidized, so that the attaching amount of graphene on the cotton fabric is increased; the conductive property is further improved.
Description
technical field [0001] The invention relates to a method for improving the adhesion and conductivity of graphene on cotton fabrics, belonging to the technical field of textile printing and dyeing. Background technique [0002] Cotton fibers have great application potential in future flexible electronics due to their excellent mechanical and physical toughness. The existing conductive textile materials are mainly made by compounding with metal. The composite methods mainly include fiber and metal wire blending to make conductive wire and then further weaving, yarn and metal wire interweaving, fabric chemical plating, etc. This kind of metal is used for blending. Or the processing of interweaving is relatively difficult, and the wearing comfort of the fabric will be affected. [0003] Graphene has the characteristics of high specific surface area, high flexibility, and high conductivity. It is widely used in supercapacitors, nanoelectronic devices, solar cells, lithium-ion ba...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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