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Multifunctional composite fiber and preparation method thereof

A composite fiber and fiber technology, which is applied in the field of composite fiber with phase change energy storage properties and thermochromic properties and its preparation, can solve the problems of single phase change materials, and achieve the effects of uniform dispersion, stable structure and easy operation

Inactive Publication Date: 2012-05-23
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2006, Xia Younan's research group (Nano Lett.2006, 6, 2868) reported the preparation of fibers with phase change materials by coaxial electrospinning. This method has good stability and the content of phase change materials has increased. However, the fiber contains only a single phase change material
At present, there are few reports on the preparation of multifunctional fibers by electrospinning

Method used

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  • Multifunctional composite fiber and preparation method thereof
  • Multifunctional composite fiber and preparation method thereof
  • Multifunctional composite fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The first step: prepare the fiber core material solution, that is, the inner fluid.

[0057] (A) Prepare internal fluid A: select the hexadecane liquid in the phase change material directly as internal fluid A;

[0058] (B) Preparation of internal fluid B: respectively select crystal violet lactone as a chromogenic agent; The mass percentage of tetradecyl alcohol and tetradecyl alcohol is 1:2:50. Weigh 1.0 g of crystal violet lactone and 2.0 g of bisphenol A and dissolve them in 50 g of tetradecyl alcohol, and stir thoroughly to obtain internal fluid B.

[0059] The second step: preparing the solution of the fiber shell material, that is, the outer fluid.

[0060] Select polyvinylpyrrolidone in the polymer to prepare the fiber shell material, and select ethanol as the solvent for the fiber shell material: dissolve 10g of polyvinylpyrrolidone in 10g of ethanol and stir thoroughly to prepare a polyvinylpyrrolidone with a concentration of 50wt%. external fluid.

[0061]...

Embodiment 2

[0065] The first step: prepare the fiber core material solution, that is, the inner fluid.

[0066] (A) Prepare internal fluid A: select octanoic acid of fatty acids in the phase change material directly as internal fluid A, and its content is controlled by flow rate;

[0067] (B) Preparation of internal fluid B: choose rhodamine B lactam as a chromogenic agent; octyl p-hydroxybenzoate as a chromogenic agent; cetyl alcohol as a thermochromic material solvent to prepare internal fluid B, according to The mass percentages of B lactam, octyl p-hydroxybenzoate and cetyl alcohol are 1:50:100, respectively weigh 0.1g of rhodamine B-lactam and 5g of octyl p-hydroxybenzoate and dissolve them in 10g of cetyl alcohol ,, fully stirred, that is, the preparation of the inner fluid B. .

[0068] The second step: preparing the solution of the fiber shell material, that is, the outer fluid.

[0069] Select polymethyl methacrylate in the polymer to prepare the fiber shell material, choose N...

Embodiment 3

[0074] The first step: prepare the fiber core material solution, that is, the inner fluid.

[0075] (A) Prepare internal fluid A: select phase change material: tetradecane in paraffins is directly used as internal fluid A, and its content is controlled by flow rate;

[0076] (B) Preparation of internal fluid B: respectively select 1,2-benzo-6-diethylaminofluorane as a chromogenic agent; bisphenol A as a chromogenic agent and cetyl alcohol as a thermochromic material solvent to prepare an internal fluid B. According to the mass percentage of 1,2-benzo-6-diethylaminofluorane, bisphenol A and cetyl alcohol as 1:2:10, weigh 1g of 1,2-benzo-6-diethyl Dissolve aminofluorane and 2g of bisphenol A in 10g of cetyl alcohol and stir thoroughly to prepare internal fluid B.

[0077] The second step: preparing the solution of the fiber shell material, that is, the outer fluid.

[0078] Select polyacrylonitrile in polymer to prepare fiber shell material, choose N, N-dimethylformamide as fi...

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Abstract

The invention discloses multifunctional composite fiber and a preparation method thereof. The composite fiber has the properties of phase-change energy storage and thermochromism. The preparation method comprises the steps: preparing by a multi-fluid composite electrostatic spinning technology, adopting a phase-change energy storage material and a thermochromism material as two types of inner fluid, selecting proper outer fluid to form a multi-fluid composite jet flow, and obtaining micronano fiber shaped like non-woven fabrics under the function of high-pressure electrostatic force. The multifunctional composite fiber has the characteristics of stable structure, uniform dispersion and the like, and has the property of being capable of loading the phase-change energy storage material and the thermochromism material simultaneously. The composite material can be used for the fields of energy conservation of buildings, sensors, clothes, fabrics, energy storage materials and the like; andthe multi-fluid composite electrostatic spinning technology adopted by the invention has simple device and easy operation.

Description

technical field [0001] The invention belongs to the field of functional micro-nano composite fibers, in particular to a composite fiber with phase-change energy storage properties and thermochromic properties and a preparation method thereof. Background technique [0002] With the rise of nanotechnology and the continuous improvement of experimental testing technology, people's understanding of objective substances has gradually developed from the macroscopic world to the microscopic nanoworld, and the research on nanomaterials has quickly become one of the research hotspots since the 1990s. As an important member of the nano family and the basic building block of nanoscience and technology, one-dimensional nanomaterials have become the research focus in the field of nanoscience research for more than ten years. In recent years, with the development of nanotechnology, electrospinning technology, as a simple, effective and practical method for preparing micro-nanofibers, has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00D01D5/28D01D1/02D01F6/56D01F6/52D01F6/54D01F1/10
Inventor 王女赵勇陈洪燕田东亮江雷
Owner BEIHANG UNIV
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