Spinning-grade polyamide composite aliphatic amine shaped energy storage material and preparation method thereof

An energy storage material, polyamide technology, applied in rayon manufacturing, heat exchange materials, filament/thread forming, etc., can solve the problem of small addition, difficult control of particle size, poor mechanical properties of energy storage and temperature-regulating fibers, etc. problems, achieve good rheological properties, good spinnability, and good results

Pending Publication Date: 2020-12-11
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these particle sizes are difficult to control, and the addition amount is small, which leads to poor mechanical properties and poor temperature regulation effect of the produced energy storage temperature regulation fiber

Method used

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  • Spinning-grade polyamide composite aliphatic amine shaped energy storage material and preparation method thereof
  • Spinning-grade polyamide composite aliphatic amine shaped energy storage material and preparation method thereof
  • Spinning-grade polyamide composite aliphatic amine shaped energy storage material and preparation method thereof

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preparation example Construction

[0024] The preparation method of the spinning grade polyamide composite fatty amine shaped energy storage material involved in the present invention comprises the following steps:

[0025] (1) Dissolve a certain proportion of polyamide and fatty amine in a polar organic solvent, heat and stir until completely dissolved as an oil phase;

[0026] (2) A certain amount of emulsifier is added into water to be activated as the water phase, and the above-mentioned oil phase is added to the water phase and emulsified by high-speed shearing to form a uniform emulsion;

[0027] (3) The above-mentioned emulsion is spray-dried to prepare a composite shaped phase-change material powder.

Embodiment 1

[0035] The invention provides a spinning-grade polyamide composite fatty amine shaped energy storage material and a preparation method thereof, comprising the following steps:

[0036] Add 300 grams of polyamide and dodecylamine with a mass ratio of 1:0.2 to 500 ml of formic acid and chloroform 1:2 mixed solvent, heat and stir at 40°C until completely dissolved, as an oil phase;

[0037] Add 10 grams of sodium lauryl sulfate emulsifier into 1.8 liters of water to activate as the water phase, add the above oil phase to the water phase, and emulsify at 30°C with high speed shear to form a uniform emulsion;

[0038] The above-mentioned emulsion was spray-dried at high temperature, the temperature was set at 180°C, and the outlet pressure of the air compressor was adjusted to 0.25Mpa to obtain a composite shaped energy storage material powder.

Embodiment 2

[0040] The invention provides a spinning-grade polyamide composite fatty amine shaped energy storage material and a preparation method thereof, comprising the following steps:

[0041] Add 200 grams of polyamide and dodecylamine with a mass ratio of 1:0.5 to 200 ml of formic acid and chloroform 1:1 mixed solvent, heat and stir at 80°C until completely dissolved, as an oil phase;

[0042] Add 50 grams of sodium lauryl sulfate emulsifier into 2 liters of water to activate as the water phase, add the above oil phase to the water phase, and emulsify at 30°C with high speed shear to form a uniform emulsion;

[0043] The above-mentioned emulsion was spray-dried at high temperature, the temperature was set at 160°C, and the outlet pressure of the air compressor was adjusted to 0.15Mpa to obtain a composite shaped energy storage material powder.

[0044] The peak melting temperature of the composite shaped energy storage material measured by a differential scanning calorimeter is 28°C...

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Abstract

The invention discloses a spinning-grade polyamide composite aliphatic amine shaped energy storage material and a preparation method thereof. The preparation method comprises the following steps of: (1) dissolving polyamide and aliphatic amine in a certain proportion in a polar organic solvent, heating and stirring until complete dissolution to form a hydrogen bond conjugate as an oil phase; (2) adding a certain amount of an emulsifier into water for activation as a water phase, adding the oil phase into the water phase, and carrying out high-speed shearing emulsification to form a uniform emulsion; and (3) carrying out spray drying on the emulsion to obtain the composite shaped energy storage material powder. The spinning-grade polyamide composite shaped energy storage material is formedby compounding an aliphatic amine energy storage material, polyamide and an organic solvent. The method is easy to control in process, high in production efficiency, good in compatibility, free of phase separation and good in heat-resistant stability. Therefore, the use problem of the composite shaped energy storage material under extreme conditions of high temperature, high pressure and the likeis solved, and meanwhile, the composite shaped energy storage material can be used for melt spinning of polypropylene fiber, chinlon, polyester and the like due to good rheological property to produceenergy storage and temperature regulation fibers.

Description

technical field [0001] The invention relates to a spinning-grade polyamide composite fatty amine shaped energy storage material and a preparation method and application thereof, belonging to the field of energy storage temperature-regulating functional materials. Background technique [0002] Energy storage temperature-regulating fiber is a new type of fiber with two-way temperature regulation effect made by adding energy storage materials to the fiber. It can automatically absorb or release heat according to changes in external temperature to reduce temperature fluctuations in the microenvironment of the body surface, thereby Ensure human comfort and avoid pathological reactions caused by temperature fluctuations, save energy and reduce emissions, and realize energy recycling. The fibers prepared by melt spinning, such as polypropylene, nylon and polyester, have many varieties, good processability and wide application, and have a high market share. Moreover, the melt spinn...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08K5/17C08K5/41D01F8/12D01F8/06D01F1/10D01D5/34C09K5/06
CPCC08K5/17C08K5/41D01F8/12D01F8/06D01F1/10D01D5/34C09K5/063C08L77/00
Inventor 张国庆周岚刘国金
Owner ZHEJIANG SCI-TECH UNIV
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