Phase-change material microcapsule with aromatic odor and preparation method thereof

A phase change material and aromatic odor technology, applied in microcapsule preparation, microsphere preparation, heat exchange materials, etc., can solve the problem of incompatibility between isophorone diisocyanate and paraffin hydrocarbon, and peculiar smell of phase change material microcapsules, etc. problems, to achieve the effect of high mechanical strength, comfortable mood, and high heat storage performance

Active Publication Date: 2014-05-21
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a phase-change material microcapsule with aromatic smell and its preparation method. The phase-change ma

Method used

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  • Phase-change material microcapsule with aromatic odor and preparation method thereof
  • Phase-change material microcapsule with aromatic odor and preparation method thereof
  • Phase-change material microcapsule with aromatic odor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of water phase

[0046] Weigh 6.0 g of emulsifier into a beaker, add deionized water to 100 g, stir for 2 h under the action of a magnetic stirrer to completely dissolve the emulsifier, and prepare a 6 wt % emulsifier aqueous solution for later use. Add 16.6g of emulsifier aqueous solution into a 100ml beaker, then add 46.6g of deionized water, stir well to obtain the water phase;

[0047] (2) Preparation of oil phase

[0048] Add 3.2g of diisocyanate into a 100ml beaker, then add 7.5g of peppermint oil, stir until completely miscible, then add 22.5g of n-tetradecane, completely miscible at 25°C to obtain an oil phase;

[0049] (3) Formation of emulsion

[0050] Heat the water phase and oil phase at 25°C for 3 minutes, add the oil phase to the water phase while it is hot, and shear at a high speed for 3 minutes under the action of a homogenizer at 6600 rpm to form an oil-in-water emulsion;

[0051] (4) Formation of microcapsules

[0052] Add 3.6g of ...

Embodiment 2

[0055] (1) Preparation of water phase

[0056] Weigh 6.0 g of emulsifier into a beaker, add deionized water to 100 g, stir for 2 h under the action of a magnetic stirrer to completely dissolve the emulsifier, and prepare a 6 wt % emulsifier aqueous solution for later use. Add 16.6g of emulsifier aqueous solution into a 100ml beaker, then add 46.6g of deionized water, stir evenly to obtain the water phase;

[0057] (2) Preparation of oil phase

[0058] Add 3.2g of diisocyanate into a 100ml beaker, then add 7.5g of peppermint oil, stir until completely miscible, then add 22.5g of n-hexadecane, completely miscible at 25°C to obtain an oil phase;

[0059] (3) Formation of emulsion

[0060] Heat the water phase and oil phase at 25°C for 3 minutes, add the oil phase to the water phase while it is hot, and shear at a high speed for 3 minutes under the action of a homogenizer at 6600 rpm to form an oil-in-water emulsion;

[0061] (4) Formation of microcapsules

[0062] Add 3.6g of 4...

Embodiment 3

[0065] (1) Preparation of water phase

[0066] Weigh 6.0 g of emulsifier into a beaker, add deionized water to 100 g, stir for 2 h under the action of a magnetic stirrer to completely dissolve the emulsifier, and prepare a 6 wt % emulsifier aqueous solution for later use. Add 16.6g of emulsifier aqueous solution into a 100ml beaker, then add 46.6g of deionized water, stir evenly to obtain the water phase;

[0067] (2) Preparation of oil phase

[0068] Add 3.2g of diisocyanate into a 100ml beaker, then add 7.5g of mint oil, stir until completely miscible, then add 22.5g of n-octadecane, completely miscible at 30°C, to obtain an oil phase;

[0069] (3) Formation of emulsion

[0070] Heat the water phase and oil phase at 30°C for 3 minutes, add the oil phase to the water phase while it is hot, and shear at a high speed for 3 minutes under the action of a homogenizer at 6600 rpm to form an oil-in-water emulsion;

[0071] (4) Formation of microcapsules

[0072] Add 3.6g of 40wt...

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Abstract

The invention relates to a phase-change material microcapsule with an aromatic odor and a preparation method thereof. The raw material comprises the following components by mass percent: an oil-phase component, including 7.0-24.0% of phase-change material, 6.0-16.0% of essence and 2.5-4.5% of diisocyanate, a water-phase component, including 0.5-4.0% of emulsifier, 0.5-2.5% of diamine and 50.0-85.0% of deionized water, wherein the sum of all components by mass fraction is 100%. The preparation method comprises the following steps: mixing an oil phase with a water phase, forming an emulsion after shearing at a high speed by a homogenizer; carrying out polymerization reaction on diisocyanate and diamine on a water-oil interface of the emulsion to generate a polyurea shell; cladding a core material to form the microcapsule. The essence is added to the phase-change material microcapsule, so that the defect that the traditional phase-change material microcapsule has a peculiar smell can be overcome, the problem that isophorone diisocyanate is insoluble to paraffin hydrocarbon is solved, and the phase-change material microcapsule can be applied to the fields such as textile and clothing, building materials, refrigeration and the like.

Description

technical field [0001] The invention belongs to the field of phase change material microcapsules, in particular to a phase change material microcapsule with aromatic smell and a preparation method thereof. Background technique [0002] Phase change materials can change their physical state at a specific temperature, thereby absorbing or releasing heat, and have the ability to store energy or adjust the temperature of the surrounding environment. Using microcapsule technology, polymers with stable performance and high thermoplasticity are used to coat solid-liquid phase change material particles to form phase change material microcapsules, which can isolate phase change materials from the outside world and prevent them from reacting with external substances. The phase change material microcapsules have a small size and a large specific surface area, which enhances heat conduction and heat transfer capabilities. The phase change material is wrapped in the wall material, which...

Claims

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Application Information

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IPC IPC(8): C09K5/06B01J13/16
Inventor 鲁希华吴倩赵迪邱高
Owner DONGHUA UNIV
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