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Phase-change microcapsule heat storage and temperature adjustment polyacrylonitrile fiber and wet spinning preparation method thereof

A polyacrylonitrile fiber, heat storage and temperature adjustment technology, which is applied in the direction of spinning solution preparation, wet spinning, fiber treatment, etc., can solve the problem of low content of phase change materials, high fiber manufacturing cost, low heat storage and temperature adjustment capacity, etc. problems, to achieve the effect of low cost, less loss and high heat storage

Inactive Publication Date: 2011-04-06
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0037] At present, the main problems in the research and development of heat storage and temperature regulation fibers are: low content of phase change materials, low heat storage and temperature regulation capabilities, and high fiber manufacturing costs

Method used

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  • Phase-change microcapsule heat storage and temperature adjustment polyacrylonitrile fiber and wet spinning preparation method thereof
  • Phase-change microcapsule heat storage and temperature adjustment polyacrylonitrile fiber and wet spinning preparation method thereof
  • Phase-change microcapsule heat storage and temperature adjustment polyacrylonitrile fiber and wet spinning preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Step 1: Add trimesoyl chloride to 30# paraffin at 40°C and mix evenly. The mass ratio of trimesoyl chloride and paraffin is 1:9 to obtain mixture I. Add mixture I dropwise to OP containing 1.5 wt%. In the 40°C water phase solution II of the -15 emulsifier, the mass ratio of the mixture I to the water phase solution II is 8:300; emulsify with a high-speed shear homogenizing emulsifier at 9000r / min for 5s to obtain the emulsion III, and the mass is Ethylenediamine with a mass of 1% of the mass of the aqueous phase solution II is dissolved in deionized water with a mass of 10% of the mass of the aqueous phase solution II, added to the emulsion III, emulsified at 9000r / min for 1min, and continued under stirring at a rotational speed of 600r / min React at constant temperature for 30 minutes, filter, wash with water, and dry in vacuum to obtain microcapsules;

[0063] Step 2, polyacrylonitrile is dissolved in the sodium thiocyanate solution of 51wt%, obtains solution IV, then ...

Embodiment 2

[0074] Step 1, adding trimesoyl chloride to 30# paraffin at 40°C and mixing evenly, the mass ratio of trimesoyl chloride and 30# paraffin is 1:9 to obtain mixture I, which is added dropwise to a mixture containing 1.5wt% In the 40°C water phase solution II of the OP-15 emulsifier, the mass ratio of the mixture I to the water phase solution II is 8:300; emulsify with a high-speed shear homogenizing emulsifier at 9000r / min for 5s to obtain the emulsion III, take Ethylenediamine whose mass is 1% of the mass of the aqueous phase solution II is dissolved in deionized water with a mass of 10% of the mass of the aqueous phase solution II, added to the emulsion III, emulsified at 9000r / min for 1min, and then at a speed of 600r / min Continue to react at constant temperature for 30 minutes under stirring, filter, wash with water, and dry in vacuum to obtain microcapsules;

[0075] Step 2, preparing a sodium thiocyanate solution with a mass percentage of 51%, dissolving polyacrylonitrile ...

Embodiment 3

[0086] Step 1: Add trimesoyl chloride to 30# paraffin at 40°C and mix evenly. The mass ratio of trimesoyl chloride and paraffin is 1:9 to obtain mixture I. Add mixture I dropwise to OP containing 1.5 wt%. In the 40°C water phase solution II of the -15 emulsifier, the mass ratio of the mixture I to the water phase solution II is 8:300; emulsify with a high-speed shear homogenizing emulsifier at 9000r / min for 5s to obtain the emulsion III, and the mass is Ethylenediamine with a mass of 1% of the mass of the aqueous phase solution II is dissolved in deionized water with a mass of 10% of the mass of the aqueous phase solution II, added to the emulsion III, emulsified at 9000r / min for 1min, and then stirred at a rotational speed of 600r / min Continue to react at constant temperature for 30 minutes, filter, wash with water, and dry in vacuum to obtain microcapsules;

[0087] Step 2, preparing a sodium thiocyanate solution with a mass percentage of 51%, dissolving polyacrylonitrile in...

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Abstract

The invention discloses heat storage and temperature adjustment polyacrylonitrile fiber and a wet spinning preparation method thereof. Paraffin wax which has a phase change point of about 30 DEG C and has been industrially produced is used as a phase change material and aqueous solution of sodium rhodanate is used as a solvent, and the phase-change microcapsule heat storage and temperature adjustment polyacrylonitrile fiber is prepared by adding phase-change microcapsules into solution of polyacrylonitrile polymer and taking the aqueous solution of sodium rhodanate as a gelling agent by a wet spinning method. The fiber prepared by the technology has higher thermal efficiency, high physical and mechanical properties, wearability, workability and dyeing property; and the used phase change material is the paraffin wax which has been industrially produced and has the advantage of low cost.

Description

technical field [0001] The invention relates to a functional textile fiber and a preparation method thereof, in particular to a preparation method of heat storage and temperature regulating fiber. It is suitable for thermal storage and temperature-adjusting textiles for aerospace, automobile, clothing and decoration. Background technique [0002] 1. Heat storage and temperature regulating fibers and textiles [0003] Heat storage and temperature-regulating fiber is a high-tech fiber that automatically senses changes in the external environment temperature and intelligently adjusts the temperature. The main purpose of this fiber is to improve the comfort of clothing. The fiber fabric can absorb, store, redistribute and release heat. When the ambient temperature is low, the temperature inside the clothing will be automatically raised, and when the ambient temperature is high, the temperature inside the clothing will be automatically lowered, so that the temperature inside th...

Claims

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Application Information

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IPC IPC(8): D01F6/54D01F1/10D01D1/02D01D1/10D01D5/06D01D5/14D01D10/06
Inventor 魏菊于海飞刘玲
Owner DALIAN POLYTECHNIC UNIVERSITY
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