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A polyacrylonitrile/copper sulfide photothermal nanofiber cloth and its preparation and application

A technology of nanofibers and polyacrylonitrile, applied in fiber processing, fiber types, fiber chemical characteristics, etc., can solve the problems of difficult popularization and wide application, slow heating speed, limited heat, etc., to save energy consumption, huge Application value, effect of broad light absorption performance

Active Publication Date: 2019-06-04
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature that the photothermal material in the solution can reach is limited, the heating rate is not fast, the heat generated is limited in the solution, it is inconvenient to use in daily life, and it is difficult to be popularized and widely used.

Method used

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  • A polyacrylonitrile/copper sulfide photothermal nanofiber cloth and its preparation and application
  • A polyacrylonitrile/copper sulfide photothermal nanofiber cloth and its preparation and application
  • A polyacrylonitrile/copper sulfide photothermal nanofiber cloth and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Weigh 2.1 g of polyacrylonitrile with an analytical balance, add it into a round-bottomed flask filled with 30 ml of organic solvent DMF, put it into a heating mantle, set the temperature at 60° C., and stir magnetically overnight to dissolve. The next day, 0.2658 g of Cu(C) was added to the resulting PAN solution. 5 h 7 o 2 ) 2 , after dissolving evenly, let stand to defoam, and obtain an opaque blue-purple spinning stock solution. Take 10mL of spinning stock solution into a syringe for electrospinning, set the spinning temperature at 50°C, spinning voltage at 16.91kV, injection speed at 45μL / min, relative humidity at about 25%, and use aluminum foil to collect nano fiber, the receiving distance is 20cm, and the copper-containing PAN nanofiber cloth is obtained, from figure 1 It can be seen that the diameter distribution of these nanofibers is relatively uniform, and the average diameter is between 300 and 350 nm.

[0034] Weigh 0.5404g sodium sulfide nonahydrate...

Embodiment 2

[0036] Weigh 1.4 g of polyacrylonitrile with an analytical balance, add it into a round-bottom flask filled with 20 ml of organic solvent DMF, put it into a heating mantle, set the temperature at 60° C., and stir it overnight with magnetic force to dissolve. The next day, 0.1329 g of Cu(C) was added to the resulting PAN solution. 5 h 7 o 2 ) 2 , after dissolving evenly, let stand to defoam, and obtain an opaque blue-purple spinning stock solution. Take 20mL of spinning stock solution into a syringe for electrospinning, set the spinning temperature at 35°C, spinning voltage at 16.08kV, injection speed at 35μL / min, relative humidity at about 25%, and use aluminum foil to collect nano fiber, the receiving distance is 15cm, and the copper-containing PAN nanofiber cloth is obtained.

[0037] Use a pipette gun to measure 0.9ml of ammonium sulfide solution (mass percentage of sulfur element ≥ 8%) and add it to 45mL of deionized water to form a 0.05mol / L sodium sulfide solution. T...

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Abstract

The invention relates to polyacrylonitrile / copper sulphide photo-thermal nanofiber fabric, and a production method and an application thereof. Polyacrylonitrile PAN nanofibers are used as a substrate, and copper sulphide CuS nano-particles are distributed on the surfaces of the polyacrylonitrile PAN nanofibers. The production method has the steps of soaking PAN nanofiber cloth including copper salts into sulfur source solution for sulfidizing, and drying. According to the fabric and the production method thereof provided by the invention, photo-thermal material is extended to the solid fibers from the solution, so that utilization limitation of the photo-thermal material is broken, and the fabric is expected to be widely applied to the fields of new generation solar heating equipment and new generation solar warm clothes.

Description

technical field [0001] The invention belongs to the field of photothermal nanometer material and its preparation and application, in particular to a polyacrylonitrile / copper sulfide photothermal nanofiber cloth and its preparation and application. Background technique [0002] Photothermal materials are a class of emerging functional nanomaterials that can directly convert light energy in specific wavelength bands into thermal energy. At present, photothermal materials are mainly used as a kind of cancer treatment reagents, which have been widely studied (Adv.Mater.2011,23,3542-3547; Adv.Mater.2013,25:2095-2100; 28:245-253.). At present, there are four main categories of photothermal materials: organic nanomaterials, metal-based nanomaterials, carbon-based nanomaterials, and semiconductor nanomaterials. Among them, semiconductor photothermal nanomaterials are a new type of photothermal materials, which have the advantages of simple preparation, low price, and easy function...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/56D01F6/54D01F1/10D06M101/28
CPCD01F1/10D01F6/54D06M11/56D06M2101/28
Inventor 陈志钢刘子潇张瑞琦张丽莎章天涯朱波何书昂包沪维
Owner DONGHUA UNIV
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