Preparation method of graphene fiber non-woven fabric
A technology of graphene fibers and non-woven fabrics, which is applied in the direction of non-woven fabrics, textiles and papermaking, can solve problems such as defects, and achieve the effect of strong water absorption and water locking
Pending Publication Date: 2022-05-03
福建省天鑫高科新材料有限公司
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Problems solved by technology
The existing graphene fiber non-woven fabrics are flexible and have high electrical conductivity. However, the surface microstructure of the graphene fibers that make up the non-woven fabrics is less, and when it is used as a wet wipe, it has a greater ability to lock moisture. defect
Method used
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Embodiment Construction
[0031] Embodiments according to the present invention will now be described in detail with reference to the accompanying drawings.
[0032] refer to figure 1 , the invention provides a kind of preparation method of graphene fiber non-woven fabric, comprising:
[0033] Step C1 Preparation of graphene oxide dispersion: add 1-3 parts by weight of graphene oxide powder to 60-185 parts by weight of concentrated sulfuric acid with a concentration of 18 mol / L, and ultrasonicate for 2-8 hours in a water bath at 60-80°C , to obtain a mixed solution of graphene oxide and concentrated sulfuric acid, after cooling to room temperature, centrifuge and wash with deionized water until neutral, the centrifugal speed is 6000-8000rpm, the centrifugation time is 30min-90min, and then centrifuge and wash with DMF for 2-3 times , the centrifugation speed is 8000-10000rpm, and the centrifugation time is 2h-24h to obtain a graphene oxide dispersion.
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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The invention provides a preparation method of a graphene fiber non-woven fabric, which comprises the following steps: preparing a graphene oxide dispersion liquid, spinning, plasticizing, stretching, performing heat setting and reducing to obtain graphene fibers, and preparing the graphene oxide dispersion liquid into graphene microspheres through drying, reducing and high-temperature treatment, thereby obtaining the graphene fiber non-woven fabric. The preparation method comprises the following steps: preparing graphene fibers and graphene microspheres, mixing the prepared graphene fibers and graphene microspheres into a graphene composite material through premixing and melt blending, and finally preparing the graphene fiber non-woven fabric through raw material selection, opening, mixing and fiber carding, cross lapping and drafting, pre-wetting, spunlacing and drying, and the graphene fiber non-woven fabric has good functions of fracture resistance, moisture absorption and water locking.
Description
technical field [0001] The invention relates to the field of graphene materials, in particular to a method for preparing graphene fiber non-woven fabrics. Background technique [0002] Graphene fiber non-woven fabric is a new type of non-woven fabric composed of graphene fibers as the main material. Due to the fusion of graphene fibers at the overlapping joints, this non-woven material has excellent electrical conductivity. , thermal conductivity and other properties, thus embodying the excellent characteristics of graphene on the macro scale. The existing graphene fiber non-woven fabrics are flexible and have high electrical conductivity. However, the surface microstructure of the graphene fibers that make up the non-woven fabrics is less, and when it is used as a wet wipe, it has a greater ability to lock moisture. defect. Contents of the invention [0003] For the deficiencies existing in the prior art, the invention provides a kind of preparation method of graphene f...
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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IPC IPC(8): D04H1/4382D04H1/492
CPCD04H1/4382D04H1/492D10B2401/022
Inventor 周龑
Owner 福建省天鑫高科新材料有限公司