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Encapsulated and networked regenerated cellulose phase-change fiber and preparation method thereof

A technology of regenerated cellulose and phase change fiber, applied in the field of textile materials, can solve the problems of limited fiber application, easy agglomeration of microcapsules, limited thermal energy storage, etc., and achieve the effects of increasing the proportion, not easy to agglomerate, and uniform in size

Active Publication Date: 2016-10-26
浙江铠悦新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the above prior art, in order to endow the regenerated cellulose fiber with the function of temperature regulation and heat storage, most of them directly add the phase change material in the form of capsules to the spinning liquid, and prepare the fiber with temperature regulation and heat storage by spinning. Regenerated cellulose fibers, the temperature-adjusted and heat-storing regenerated cellulose fibers prepared by this method contain a limited proportion of phase change materials, and the microcapsules are easy to agglomerate in the spinning solution, so that the prepared regenerated cellulose fibers have a uniform function Poor, the thermal energy storage of phase transition is limited, which limits the application of fibers

Method used

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  • Encapsulated and networked regenerated cellulose phase-change fiber and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0028] (1) In parts by mass, 1 part of glyceryl tristearate phase change material is added into 5 parts of chitosan solution with a mass fraction of 2%, fully stirred, and 2 parts of N, N methylenebis Acrylamide cross-linking agent and 0.8 parts of ammonium persulfate initiator are stirred evenly to form a microcapsule solution.

[0029] (2) In parts by mass, add 5 parts of sodium alginate powder and 3 parts of nano-silver powder to 100 parts of regenerated cellulose solution with a mass fraction of 15%, stir well, add 10 parts of glutaraldehyde crosslinking agent, and stirred evenly to form a cellulose spinning matrix.

[0030] (3) In parts by volume, the cross-section of the microcapsule solution packed into the spray hole is circular, and the diameter of the spray hole is a spray device of 25 μm. Under the working pressure of 0.3mPa, the microcapsule solution is evenly sprayed onto the spray hole. 80 parts of the cellulose spinning substrate were rapidly stirred at a speed...

Embodiment 2

[0033] (1) In parts by mass, add 1 part of glyceryl tristearate phase change material into 10 parts of chitosan solution with a mass fraction of 5% and fully stir, add 3 parts of N, N methylenebis Acrylamide crosslinking agent and 1.5 parts of ammonium persulfate initiator are stirred evenly to form a microcapsule solution.

[0034] (2) In parts by mass, add 8 parts of sodium alginate powder and 3-6 parts of nano-silver powder to 100 parts of regenerated cellulose solution with a mass fraction of 25%, stir well, and add 15 parts of glutaraldehyde Cross-linking agent, stir evenly to form cellulose spinning matrix.

[0035] (3) by volume, the cross-section of the microcapsule solution of 20 parts is packed into spray hole is circular, and the diameter of spray hole is the spray device of 100 μ m, under 0.4mPa working pressure, the microcapsule solution is evenly sprayed onto Into 100 parts of cellulose spinning substrate, stir rapidly at a speed of 5000 rpm / min, and at the same...

Embodiment 3

[0038](1) In parts by mass, add 1 part of glyceryl tristearate phase change material into 7 parts of chitosan solution with a mass fraction of 3%, fully stir, add 2.5 parts of N, N methylenebis Acrylamide crosslinking agent and 1.2 parts of ammonium persulfate initiator are stirred evenly to form a microcapsule solution.

[0039] (2) In parts by mass, add 6 parts of sodium alginate powder and 5 parts of nano-silver powder to 100 parts of regenerated cellulose solution with a mass fraction of 20%, stir well, add 15 parts of glutaraldehyde crosslinking agent, and stirred evenly to form a cellulose spinning matrix.

[0040] (3) In parts by volume, the cross section of the microcapsule solution packed into 15 parts of the spray hole is circular, and the diameter of the spray hole is a spray device of 50 μm. Under the working pressure of 0.35mPa, the microcapsule solution is evenly sprayed on the In 90 parts of cellulose spinning substrate, stir rapidly at a speed of 3000rpm / min, ...

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Abstract

The invention provides a preparation method of an in-situ encapsulated and networked regenerated cellulose phase-change fiber, comprising the following steps: adding glycerol tristearate phase-change material into chitosan solution, stirring well, adding N,N-methylenebisacrylamide crosslinking agent and ammonium persulfate initiator, stirring well to form a microcapsule solution; adding sodium alginate powder and nano silver powder into the regenerated cellulose solution, stirring well, adding glutaric dialdehyde crosslinking agent, and stirring well to form cellulose spinning matrix; loading the microcapsule solution to a spraying device, spraying the microcapsule solution evenly to the cellulose spinning matrix, stirring at high speed, dropwise adding ammonium persulfate initiator, and heating and stirring to form spinning dope; subjecting the spinning dope to vacuum suction filtering and defoaming, and coagulating via wet spinning to form the capsulated networked regenerated cellulose phase-change fiber.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and in particular relates to a capsule and networked regenerated cellulose phase-change fiber and a preparation method thereof. Background technique [0002] In recent years, the application of phase change latent heat of phase change materials to store and release thermal energy in the fields of construction, daily necessities and textiles and clothing has been extensively studied. In the field of textiles, phase change materials are applied to fibers to form composite fibers. The specific composite methods include coating method, impregnation method and composite spinning method. Compared with the other two methods, the composite spinning method has the advantages of better combination and uniformity. [0003] Among the many regenerated fibers, the regenerated cellulose fiber is the most mature technology and the largest amount used, and there are many studies on the modification of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/00D01F1/10B01J13/18
CPCB01J13/18D01F1/10D01F2/00
Inventor 王文庆
Owner 浙江铠悦新材料科技股份有限公司
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