Preparation method of thermoregulation cellulose fiber with intelligent thermoregulation function

A technology of cellulose fiber and intelligent temperature regulation, which is applied in the fields of fiber chemical characteristics, chemical instruments and methods, rayon manufacturing, etc., can solve the problem of unsatisfactory fiber wearing performance, achieve thermal stability and good temperature regulation effect , expanding the scope of application, low cost effect

Inactive Publication Date: 2007-07-11
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Japanese Laid-Open Patent No. 4-163370 discloses a method of blending paraffin wax (melting point of 52°C) and high-density polyethylene by melt spinning to produce fibers with temperature-regulating functions, and the wearability of the fibers is unsatisfactory.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 5 mL of 35# phase-change paraffin wax with a phase transition temperature of 35°C, add 1.0 g of sorbitan oleate (Span80) and polyoxyethylene sorbitan monooleate (Tween80) in a mass ratio of 0.4:0.6 For the mixed emulsifier, under the condition of heating and stirring, add 30mL aqueous solution containing 1% bone glue to the above oil phase, then add 0.5mL 2.5mol / L sodium chloride, continue heating and stirring, and emulsify for 30min. After the emulsification is relatively complete, add 0.25ml of 1% hydrochloric acid and 4mL of ethyl orthosilicate with a density of 0.9 g / ml, place it in a water bath at 60°C and stir for 3 hours, age for 12 hours, filter and wash to obtain a phase change Energy storage material microcapsules. Scanning electron micrographs show a core-shell structure. The enthalpy change of the microcapsule during the phase change process is 108 J / g, and the content of 35# phase change wax (the enthalpy value is 137 J / g) in the microcapsule is 78.8%...

Embodiment 2

[0028] Take 5mL of octadecane whose phase transition temperature is 27-29°C, add 1.5g of Span80, Tween80 compounded emulsifier at a mass ratio of 0.5:0.5, and slowly add 50mL of an aqueous solution containing 2% hydroxycellulose under heating and stirring conditions , and then add 1mL of 2.5mol / L sodium chloride, continue heating, and stir for 30min at the same time, fully emulsify the mixture. After the emulsification is relatively complete, slowly add 1mL of 10% acetic acid and 16mL of ethyl orthosilicate with a density of 0.9 g / ml, place it in a water bath at 60°C and stir for 3 hours, age for 24 hours, filter and wash to obtain a phase change Energy storage material microcapsules. The enthalpy of the microcapsules during phase transition is 119J / g. The content of octadecane (whose enthalpy is 237 J / g) in the microcapsules is 50.2%.

[0029] Take 3 parts of phase-change energy storage material microcapsules with octadecane as the core material, add 0.02 parts of polyvinyl...

Embodiment 3

[0031] Get 3 parts of phase-change energy storage material microcapsules with octadecane obtained by the method of Example 2 as the core material, add 0.05 parts of polyvinyl alcohol, add 6.95 parts of solvent water, and mix it uniformly to form a slurry; 3 parts of wood pulp Crushed and added to the cupro ammonia solution to form a viscous cupro ammonia solution; the above slurry was added to the cellulose cupro ammonia solution and mixed evenly to form a spinning stock solution; finally, the spinning stock solution was sequentially entered into dilute caustic soda solution and dilute Fibers are formed in sulfuric acid. After acid elution to remove copper, washing and drying, the temperature-regulating fiber is obtained.

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Abstract

The invention relates to a manufacturing method for tempering cellulose fiber with intelligent tempering performance, characterized in that microcapsule grout of phase change energy storage materials with the weight of 10-230% of the fiber is put into the fiber stock solution of cellulose so as to form spinning dope by even mixture, which enters into the dilute caustic soda solution and dilute sulfate in turn to form the fiber; tempering cellulose fiber is formed by dilute acid decoppering, washing and drying. It is provided with simple process, low manufacturing cost and wide applicable range. The tempering cellulose fiber has the base material of cellulose fiber and the functional additive material of microcapsule of phase changer energy storage materials. The phase change energy storage materials are not easy to leak and is provided with good heat stability and tempering effect. When it is applied in down-proof fabric and duvay the phase change energy storage materials can strengthen the tempering performance.

Description

technical field [0001] The present invention relates to the field of man-made fibers, in particular to functional cellulose fibers with intelligent temperature-regulating properties. Specifically, the cellulose fibers of the present invention have excellent temperature-regulating properties and can prevent fibrillation. In the stock solution, add phase-change energy storage material microcapsules and a small amount of emulsifier, so that the fiber stock solution and phase-change energy storage material microcapsules are evenly mixed to form a spinning stock solution with temperature-regulating properties, and pass the spinning stock solution through Spinning nozzles with spinneret holes are extruded and spun to provide functional cellulose fibers with intelligent temperature regulation. Background technique [0002] The cellulose strong fiber regenerated by the viscose method and the copper ammonia method has a history of more than 100 years. In the viscose method, the fiber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/10C09K5/02
Inventor 唐国翌缪春燕吕刚姚有为翁端
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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