Calcium alginate/macrogol ester double-network phase-change energy-storing fiber and preparation method thereof

A technology of polyethylene glycol ester and calcium alginate, which is applied in the fields of fiber chemical characteristics, spinning solution preparation, wet spinning method, etc., can solve the problem of low strength of alginate fiber, and achieve the goal of alleviating the imbalance between heat energy supply and demand Contradictory, simple control, effect of reduction in loss of fiber breaking strength

Active Publication Date: 2014-04-23
DALIAN POLYTECHNIC UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to propose a calcium alginate/polyethylene glycol ester double network phase change energy storage fiber for the low strength of the existing alginate fiber mentioned abo

Method used

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  • Calcium alginate/macrogol ester double-network phase-change energy-storing fiber and preparation method thereof
  • Calcium alginate/macrogol ester double-network phase-change energy-storing fiber and preparation method thereof
  • Calcium alginate/macrogol ester double-network phase-change energy-storing fiber and preparation method thereof

Examples

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Embodiment 1

[0029] This example discloses a calcium alginate / polyethylene glycol ester double network phase change energy storage fiber, the preparation method of which is as follows:

[0030] Dissolve 2g of sodium alginate, 0.6g of polyethylene glycol ester, 0.006g of N,N-methylenebisacrylamide, and 0.0024g of ammonium persulfate in 100ml of deionized water, react in a water bath at 60°C for 2.5h, and statically Place it for defoaming, extrude into 2% calcium chloride solution, take out the fiber after 10 minutes of solidification and molding, draw and dry to obtain the double network phase change energy storage calcium alginate fiber.

[0031] The structure and preparation process of the calcium alginate / polyethylene glycol ester double network phase change energy storage fiber in this example are as follows: figure 1 As shown, the calcium alginate / polyethylene glycol ester double network phase change energy storage fiber firstly prepares the polyethylene glycol ester covalently crossli...

Embodiment 2

[0035] This example discloses a calcium alginate / polyethylene glycol ester double network phase change energy storage fiber, the preparation method of which is as follows:

[0036] Dissolve 2g of sodium alginate, 0.3g of polyethylene glycol ester, 0.0015g of N,N-methylenebisacrylamide, and 0.0003g of ammonium persulfate in 100ml of deionized water, react in a water bath at 45°C for 2.5h, and statically Place it for defoaming, extrude into 2% calcium chloride solution, take out the fiber after 10 minutes of solidification and molding, draw and dry to obtain calcium alginate / polyethylene glycol ester double network phase change energy storage fiber.

Embodiment 2

[0037] The melting enthalpy of the calcium alginate / polyethylene glycol double network phase change energy storage fiber obtained in Example 2 is 30.94 J / g, the crystallization enthalpy is 11.15 J / g, and the fiber breaking strength is 1.61 cN / dtex.

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Abstract

The invention provides a calcium alginate/macrogol ester double-network phase-change energy-storing fiber and a preparation method thereof. The calcium alginate/macrogol ester double-network phase-change energy-storing fiber is formed by copolymerizing sodium alginate and a phase-change material in the presence of a cross-linking agent and an initiating agent and solidifying, wherein the mass ratio of the sodium alginate to the phase-change material is (100:15) to (100:30); the mass ratio of the cross-linking agent to the phase-change material is (0.5:100) to (2:100); the mass ratio of the initiating agent to the phase-change material is (0.1:100) to (0.8:100). According to the calcium alginate/macrogol ester double-network phase-change energy-storing fiber disclosed by the invention, due to a double-network structure, the phase-change material is fixed in the fiber; the double-network structure ensures functionalization and also reduces loss of the break strength of the fiber; by controlling the reaction condition, the cross-linking degree of macrogol ester networks is changed to regulate the balance among the phase-change energy-storage temperature regulation performance of the fiber, the fiber strength and the spinning solution processability so as to meet the requirements on practical processing and application.

Description

technical field [0001] The invention relates to calcium alginate fiber technology, in particular to a calcium alginate / polyethylene glycol ester double network phase change energy storage fiber and a preparation method thereof. Background technique [0002] Calcium alginate belongs to marine biomass material, which has the characteristics of green source, low processing energy consumption, no pollution to the environment and biodegradable. The low price and wide range of raw materials make alginate fibers have great potential in the fields of clothing, medical treatment, and interior decoration. However, the alginate fibers prepared from alginate have low strength and are brittle, which greatly limits the practical application of alginate fibers. These unfavorable factors limit the application field of alginate fiber, making this cheap material not widely used in production and life. Contents of the invention [0003] The purpose of the present invention is to propose a ...

Claims

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Application Information

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IPC IPC(8): D01F8/18D01F8/04D01D1/02D01D5/06C08F283/06C08F222/38C08F4/30
Inventor 张鸿孙狄克郭萍房艳萍郭静宫玉梅
Owner DALIAN POLYTECHNIC UNIVERSITY
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