A photothermal, piezoelectric heating dual mechanism heating film and its preparation method and heating clothing

A dual-mechanism, heating film technology, applied in clothing, clothing, clothing features, etc., can solve the problems of difficult control of the ratio of tellurene and graphene, small selection of additive content, uneven dispersion of tellurene and graphene, etc. , to achieve excellent piezoelectric thermal effect, increase heat production, and excellent fiber conductivity

Active Publication Date: 2022-04-15
SHENZHEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation method of a photothermal and piezoelectric heating dual-mechanism heating film provided by the present invention can effectively solve the uneven dispersion of tellurene and graphene, difficulty in adjusting the ratio of tellurene and graphene, poor spinnability, and the addition of There is relatively little flexibility in the content selection of additives and additives. The flexibility and size of the prepared photothermal and piezoelectric heating dual mechanism heating film are easy to control. The physical properties are superior, and the photothermal effect and piezoelectric thermal effect are remarkable. , can be widely used in the field of self-produced thermal clothing

Method used

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  • A photothermal, piezoelectric heating dual mechanism heating film and its preparation method and heating clothing
  • A photothermal, piezoelectric heating dual mechanism heating film and its preparation method and heating clothing
  • A photothermal, piezoelectric heating dual mechanism heating film and its preparation method and heating clothing

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preparation example Construction

[0044] The invention provides a method for preparing a tellurene / graphene hybrid fiber membrane with photoelectric effect, comprising the following steps:

[0045] Preparation of a mixture of tellurene and graphene oxide: provide a tellurene pre-exfoliation dispersion, add graphene oxide to the tellurene pre-exfoliation dispersion, perform ultrasonication in a constant temperature water bath, centrifuge, collect the bottom layer mixture, and then disperse the bottom layer mixture in water, washing, concentrating and drying to obtain a mixture of tellurene and graphene oxide;

[0046] Preparation of tellurene / graphene oxide mixed dispersion: add water to the mixture of tellurene and graphene and stir to obtain a mixed solution, use pulsed tip ultrasonic method to sonicate the mixed solution, and concentrate the mixed solution after the ultrasound is completed to prepare Obtain tellurene / graphene oxide mixed dispersion;

[0047] Spinning: Use the tellurene / graphene oxide mixed ...

Embodiment 1

[0084] Such as figure 1 and 2 As shown, a method for preparing a photothermal and piezoelectric heating dual mechanism heating film comprises the following steps:

[0085] Prepare a mixture of tellurene and graphene oxide: provide tellurene pre-exfoliation dispersion, take 10ml tellurene pre-exfoliation dispersion from it, weigh it, record its mass as mg, and obtain the concentration of tellurene pre-exfoliation dispersion w=0.1 * mg / ml (0.00394 g / ml in this example). Add 0.788 g of graphene oxide to the remaining 200 ml of tellurene pre-stripping dispersion according to the mass ratio of tellurene to graphene oxide at 1:1 to obtain mixed solution B. Put the mixed solution B in a constant temperature water bath ultrasonic machine for ultrasonication, keep the temperature of the water bath below 10°C, and ultrasonicate for 12 hours. The mixed solution after the ultrasonication was completed was centrifuged with a centrifuge at a rotation speed of 10000 rpm and a centrifugati...

Embodiment 2

[0091] The difference between embodiment 2 and embodiment 1 is only: after making the double-layer fiber membrane of tellurene / graphene hybrid fiber membrane and graphene / PVDF nanofiber membrane, on graphene / PVDF nanofiber membrane, be coated with conductive Glue, and stick another piece of tellurene / graphene hybrid fiber membrane on it to form a sandwich of tellurene / graphene hybrid fiber membrane-graphene / PVDF nanofiber membrane-tellurene / graphene hybrid fiber membrane sandwich membrane. Using highly conductive graphene fibers and conductive glue to connect two tellurene / graphene hybrid fiber membranes to form functional devices. Based on the need to protect the overall functional device, the functional device can also be packaged with a transparent PET film.

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Abstract

The invention provides a method for preparing a heating film with dual mechanisms of photothermal and piezoelectric heating, comprising the following steps: preparing a mixture of tellurene and graphene oxide, preparing a tellurene / graphene oxide mixed dispersion, spinning, and preparing tellurene ene / graphene hybrid fiber membrane and preparation of photothermal and piezoelectric heating dual mechanism heating membrane. The preparation method of the photothermal and piezoelectric heating dual-mechanism heating film of the present invention solves the problems of tellurene's easy mutual stacking, poor dispersion in water, and the tellurene dispersion itself through the auxiliary dispersion and spinning of graphene oxide. Does not have defects such as spinnability. The photothermal and piezoelectric thermal dual mechanism heating film of the present invention includes a tellurene / graphene hybrid fiber film with a photothermal effect and a graphene / PVDF nanofiber film with a piezoelectric thermal effect, which can generate heat through physical bending or deformation at the same time, It can also generate electricity and heat through sunlight. The invention also provides a heating film with dual mechanisms of photothermal and piezoelectric heating and its application.

Description

technical field [0001] The present invention relates to the technical field of nano-semiconductor materials, in particular to a heating film with dual heat generation mechanisms of photothermal and piezoelectric heating, and also relates to a method for preparing the heating film with dual mechanisms of photothermal and piezoelectric heating. It also relates to a heating suit with dual heat generation mechanisms of light heat and piezoelectric heat. Background technique [0002] The main function of self-heating clothing is to prevent the loss of body heat, to ensure that the human body can live and work normally in cold environmental conditions, and to protect the human body from cold damage. Current self-heating suits mostly use electric heating. For example, self-heating clothing with its own power supply is limited by the weight of the power supply and the inconvenience of carrying. It can only be used in the field of special clothing, and it is difficult to effectively...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/4382D04H1/4374D04H1/728A41D1/00A41D13/005D01F1/10D01F6/48D01F9/12
CPCD04H1/4382D04H1/4374D04H1/728A41D13/0051A41D1/00D01F6/48D01F1/10D01F9/12A41D2400/12
Inventor 张晗孟思
Owner SHENZHEN UNIV
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