Microencapsulated composite phase change material and production and application thereof

A composite phase change material and microencapsulation technology, applied in the field of textile fibers, can solve problems such as the heat exchange effect of formaldehyde-containing phase change materials, and achieve the effects of controllable and intelligent temperature regulation, controllable structure, and improving thermal conductivity.

Inactive Publication Date: 2020-11-20
湖南世东环保节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are problems such as the presence of formaldehyde or other toxic and harmful substan

Method used

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  • Microencapsulated composite phase change material and production and application thereof
  • Microencapsulated composite phase change material and production and application thereof
  • Microencapsulated composite phase change material and production and application thereof

Examples

Experimental program
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Embodiment 1

[0028] This embodiment discloses a microencapsulated composite phase change material, which includes a core material made of aluminum nitride-decanoic acid composite and a capsule material made of polyvinyl alcohol.

[0029] The steps of making the microencapsulated composite phase change material in this embodiment are as follows:

[0030] S1. Mix 50g of capric acid, 15g of polycrystalline aluminum nitride and 1g of cetyltrimethylammonium chloride evenly. Under the action of high-speed stirring and shearing, gradually add hot water at 60°C, keep warm and shear at 120°C minutes, and then slowly lower the temperature to 25-30°C to obtain a polycrystalline aluminum nitride-decanoic acid complex emulsion.

[0031] S2. Detect the particle size, distribution and thermal conductivity of the latex particles in the polycrystalline aluminum nitride-decanoic acid composite emulsion to ensure that the particle size of the latex particles is less than 1um and uniformly distributed in the ...

Embodiment 2

[0039] This embodiment discloses a microencapsulated composite phase change material, which includes a core material made of aluminum nitride-decanoic acid composite and a capsule material made of polyvinyl alcohol.

[0040] The steps of making the microencapsulated composite phase change material in this embodiment are as follows:

[0041] S1. Mix 50g of capric acid, 15g of polycrystalline aluminum nitride and 1g of cetyltrimethylammonium chloride evenly. Under the action of high-speed stirring and shearing, gradually add hot water at 70°C, keep warm and shear at a high speed for 80 minutes, and then slowly lower the temperature to 25-30°C to obtain a polycrystalline aluminum nitride-decanoic acid complex emulsion.

[0042] S2. Detect the particle size, distribution and thermal conductivity of the latex particles in the polycrystalline aluminum nitride-decanoic acid composite emulsion to ensure that the particle size of the latex particles is less than 1um and uniformly distr...

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Abstract

The invention discloses a microencapsulated composite phase change material as well as production and application thereof. A core material of the microencapsulated composite phase change material is apolycrystalline aluminum nitride-capric acid compound, and a capsule material of the microencapsulated composite phase change material is polyvinyl alcohol. The preparation method comprises the following steps: preparing polycrystalline aluminum nitride-capric acid compound latex particles, coating with polyvinyl alcohol, and carrying out secondary coating. The application method comprises the step of preparing polypropylene fiber cotton by using the microencapsulated composite phase change material. The phase change material has high phase change latent heat and heat exchange capacity, and the phase change temperature of the phase change material is 31.5 DEG C, which is in the most comfortable temperature range of a human body. The prepared intelligent temperature-adjusting polypropylenefiber cotton has a good temperature-adjusting effect and good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of textile fibers, in particular to a microencapsulated composite phase-change material and its production and application. Background technique [0002] Intelligent temperature-regulating fibers and textiles refer to adding a certain amount of phase-change materials during the processing of fibers and textiles, and using the materials to absorb and release heat to achieve a heat storage and temperature-regulating functional fiber that maintains a constant temperature in the surrounding environment. This kind of fiber has a very good intelligent temperature regulation function when making clothing and bedding: when the ambient temperature or human skin temperature reaches the melting point of the phase change material in the fiber, the phase change material absorbs heat and transforms from solid to liquid to This produces a brief cooling effect on the inner layer of clothing or bedding. [0003] However, wh...

Claims

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Application Information

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IPC IPC(8): C09K5/06B01J13/02
CPCB01J13/02C09K5/06
Inventor 张淑娟
Owner 湖南世东环保节能科技有限公司
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