Phase transition temperature-adjusting cellulosic fiber prepared by solvent method and preparation method thereof

A cellulose fiber and solvent method technology, applied in the textile field, can solve the problems of low light energy absorption conversion rate, long wet spinning process, high cost of phase change fiber, etc., to increase absorption and conversion efficiency, improve melting Effect, the effect of high production efficiency

Active Publication Date: 2016-03-02
潍坊欣龙生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, due to the complex synthesis process of microcapsules and the reaction between solvents and additives, the phase change fiber has high cost and unsatisfactory functionality, and the process of wet spinning process is long and inefficient. In the production process of viscose fiber, chemical raw materials such as sodium hydroxide, carbon disulfide and sulfuric acid are used, which cause serious pol

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A method for preparing energy-storage and temperature-regulating cellulose fibers using ionic liquid as a solvent, the main steps of which include:

[0044] (1) Preparation of composite polyethylene glycol porous phase change materials

[0045] Melt polyethylene glycol at 60°C, add silicate minerals-montmorillonite and tourmaline to the melt after melting, so that the mass of silicate minerals, tourmaline and polyethylene glycol The ratio is 1:1:10, and the blending adsorption time is 1.0h;

[0046] (2) Preparation of spinning dope

[0047] a. Blending: blending the composite polyethylene glycol porous phase change material prepared above with an alkylimidazole-type ionic liquid whose cation is allyl and anion is halogen;

[0048] b. Swelling: Premix and swell the blended ionic liquid and pulverized cellulose pulp in proportion, wherein the obtained premixed material is compounded with polyethylene glycol porous phase change material: cellulose pulp: ionic liquid The m...

Embodiment 2

[0055] A method for preparing energy-storage and temperature-regulating cellulose fibers using ionic liquid as a solvent, the main steps of which include:

[0056] (1) Preparation of composite polyethylene glycol porous phase change materials

[0057] Melt polyethylene glycol at 70°C, add zeolite and graphene to the melt after melting, so that the mass ratio of zeolite, graphene and polyethylene glycol is 1:2:20, and the blending adsorption time is 2.0h;

[0058] (2) Preparation of spinning dope

[0059] a. Blending: mix the composite polyethylene glycol porous phase change material prepared above with ethyl as the cation and CH as the anion. 3 COO - The alkylimidazole type ionic liquid is blended;

[0060] b. Swelling: The blended ionic liquid and the pulverized cellulose pulp are premixed and swelled, and the obtained premixed material is compounded with polyethylene glycol porous phase change material: cellulose pulp: ionic liquid The mass ratio of the latter is 2:20:7...

Embodiment 3

[0067] A method for preparing energy-storage and temperature-regulating cellulose fibers using ionic liquid as a solvent, the main steps of which include:

[0068] (1) Preparation of composite polyethylene glycol acrylate porous phase change material

[0069] Melt polyethylene glycol acrylate at 80°C, add cyclodextrin and medical stone to the melt after melting, so that the mass ratio of cyclodextrin, medical stone and polyethylene glycol acrylate 5:10:30, blending adsorption time is 2.5h;

[0070] (2) Preparation of spinning dope

[0071] a. Blending: The composite polyethylene glycol acrylate porous phase change material prepared above is mixed with butyl as the cation and SCN as the anion. - The alkylimidazole type ionic liquid is blended;

[0072] b. Swelling: Premix the blended ionic liquid and the pulverized cellulose pulp, and the obtained premixed material is compounded with polyethylene glycol acrylate porous phase change material: cellulose pulp: ionic liquid The...

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Abstract

The invention discloses phase transition temperature-adjusting cellulosic fiber prepared by a solvent method. The fiber comprises a porous material, a macromolecular phase-changing material and a substance with a far infrared absorption function, wherein mass ratio of the porous adsorption material to the substance with the far infrared absorption function to the macromolecular phase-changing material is 1-30:1-50:10-100. Melting enthalpy value of the fiber is greater than or equal to 5.5 J/g, and crystalline enthalpy value is greater than or equal to 5.3 J/g. a preparation method of the fiber comprises the following steps: preparing a composite macromolecular phase-changing porous material; preparing a spinning solution; and spinning. According to preparation of the composite macromolecular phase-changing porous material, the porous adsorption material and the substance with the far infrared absorption function are added into the molten macromolecular phase-changing material to carry out adsorption and mixing. The phase transition temperature-adjusting cellulosic fiber prepared by the method has characteristics of pollution-free production process and green and environmental-protection product. As the porous adsorption material is used to adsorb the macromolecular phase-changing material, loss during formation process is minimized, and the phase transition temperature-adjusting function of the fiber is guaranteed.

Description

technical field [0001] The invention relates to a phase-change temperature-regulating cellulose fiber and a preparation method thereof, in particular to a phase-change temperature-regulating cellulose fiber prepared by using cellulose pulp and composite phase change materials as raw materials and ionic liquid as a solvent The method and the method belong to the technical field of textiles. technical background [0002] Ionic liquids have the characteristics of low vapor pressure, stable performance, no volatility, and good solubility. They are widely used in organic synthesis, electrochemistry, material chemistry and other fields, and have good research and application prospects. At the same time, cellulose has attracted much attention as an environmentally friendly renewable resource. In recent years, using ionic liquids as solvents to dissolve cellulose to prepare cellulose fibers has become one of the key research directions in this field. [0003] With the improvement ...

Claims

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Application Information

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IPC IPC(8): D01F2/00D01F1/10D01D1/02D01D5/06
CPCD01D1/02D01D5/06D01F1/10D01F1/106D01F2/00
Inventor 李昌垒刘长军马君志王东秦翠梅刘乐郝连庆吴亚红
Owner 潍坊欣龙生物材料有限公司
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